Biocompatible Materials: Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.Materials Testing: The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.Coated Materials, Biocompatible: Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.Radio Frequency Identification Device: Machine readable patient or equipment identification device using radio frequency from 125 kHz to 5.8 Ghz.Lenses, Intraocular: Artificial implanted lenses.Radio Waves: Electromagnetic waves with frequencies between about 3 kilohertz (very low frequency - VLF) and 300,000 megahertz (extremely high frequency - EHF). They are used in television and radio broadcasting, land and satellite communications systems, radionavigation, radiolocation, and DIATHERMY. The highest frequency radio waves are MICROWAVES.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Polymers: Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).Ultraviolet Rays: That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants.Sunburn: An injury to the skin causing erythema, tenderness, and sometimes blistering and resulting from excessive exposure to the sun. The reaction is produced by the ultraviolet radiation in sunlight.Short-Wave Therapy: The use of focused short radio waves to produce local hyperthermia in an injured person or diseased body area.Sunscreening Agents: Chemical or physical agents that protect the skin from sunburn and erythema by absorbing or blocking ultraviolet radiation.Radiation ProtectionCyanobacteria: A phylum of oxygenic photosynthetic bacteria comprised of unicellular to multicellular bacteria possessing CHLOROPHYLL a and carrying out oxygenic PHOTOSYNTHESIS. Cyanobacteria are the only known organisms capable of fixing both CARBON DIOXIDE (in the presence of light) and NITROGEN. Cell morphology can include nitrogen-fixing heterocysts and/or resting cells called akinetes. Formerly called blue-green algae, cyanobacteria were traditionally treated as ALGAE.Refractometry: Measurement of the index of refraction (the ratio of the velocity of light or other radiation in the first of two media to its velocity in the second as it passes from one into the other).Niobium: Niobium. A metal element atomic number 41, atomic weight 92.906, symbol Nb. (From Dorland, 28th ed)Equipment and Supplies: Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.Ophthalmologic Surgical Procedures: Surgery performed on the eye or any of its parts.Quantum Dots: Nanometer sized fragments of semiconductor crystalline material which emit PHOTONS. The wavelength is based on the quantum confinement size of the dot. They can be embedded in MICROBEADS for high throughput ANALYTICAL CHEMISTRY TECHNIQUES.Inorganic Chemicals: A broad class of substances encompassing all those that do not include carbon and its derivatives as their principal elements. However, carbides, carbonates, cyanides, cyanates, and carbon disulfide are included in this class.Nanowires: Nanometer-scale wires made of materials that conduct electricity. They can be coated with molecules such as antibodies that will bind to proteins and other substances.Semiconductors: Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.Cadmium Compounds: Inorganic compounds that contain cadmium as an integral part of the molecule.Marketing: Activity involved in transfer of goods from producer to consumer or in the exchange of services.Chitosan: Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.Ceramics: Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)Nanotechnology: The development and use of techniques to study physical phenomena and construct structures in the nanoscale size range or smaller.Organically Modified Ceramics: Organic-inorganic hybrid polymers developed primarily for DENTAL RESTORATION. They typically contain a defined mixture of ORGANOSILICON COMPOUNDS; CERAMICS; and organic POLYMERS.Siloxanes: Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures.Syringes: Instruments used for injecting or withdrawing fluids. (Stedman, 25th ed)Dental Materials: Materials used in the production of dental bases, restorations, impressions, prostheses, etc.Composite Resins: Synthetic resins, containing an inert filler, that are widely used in dentistry.Dental Veneers: The use of a layer of tooth-colored material, usually porcelain or acrylic resin, applied to the surface of natural teeth, crowns, or pontics by fusion, cementation, or mechanical retention.Biomedical Engineering: Application of principles and practices of engineering science to biomedical research and health care.Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)Biomedical Research: Research that involves the application of the natural sciences, especially biology and physiology, to medicine.Color Perception Tests: Type of vision test used to determine COLOR VISION DEFECTS.Research Personnel: Those individuals engaged in research.Research Support as Topic: Financial support of research activities.Color Vision Defects: Defects of color vision are mainly hereditary traits but can be secondary to acquired or developmental abnormalities in the CONES (RETINA). Severity of hereditary defects of color vision depends on the degree of mutation of the ROD OPSINS genes (on X CHROMOSOME and CHROMOSOME 3) that code the photopigments for red, green and blue.Inventions: A novel composition, device, or process, independently conceived de novo or derived from a pre-existing model.Metals, Rare Earth: A group of elements that include SCANDIUM; YTTRIUM; and the LANTHANOID SERIES ELEMENTS. Historically, the rare earth metals got their name from the fact that they were never found in their pure elemental form, but as an oxide. In addition they were very difficult to purify. They are not truly rare and comprise about 25% of the metals in the earth's crust.Alloys: A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.Yttrium: An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers.WT1 Proteins: Isoforms encoded by the WT1 Wilms tumor suppressor gene (GENES, WILMS TUMOR) and produced by alternative splicings. They are zinc finger-containing transcription factors involved in both transactivation and repression, and are critical for normal development and function of the urogenital tract.Magnesium: A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.Tissue Embedding: The technique of placing cells or tissue in a supporting medium so that thin sections can be cut using a microtome. The medium can be paraffin wax (PARAFFIN EMBEDDING) or plastics (PLASTIC EMBEDDING) such as epoxy resins.Clove Oil: An oil from flower buds of SYZYGIUM trees which contains large amounts of EUGENOL.Spinal DiseasesBone and Bones: A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principle cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX.Osteogenesis: The process of bone formation. Histogenesis of bone including ossification.

Association of plasma fibrinogen concentration with vascular access failure in hemodialysis patients. (1/3384)

BACKGROUND: Elevated plasma fibrinogen is an important risk factor for coronary artery disease in the general population and patients with chronic renal failure. High plasma fibrinogen may trigger thrombus formation in arteriovenous fistulas. We performed a prospective, cohort study to evaluate the association of plasma fibrinogen concentration with vascular access failure in patients undergoing long-term haemodialysis. METHODS: Between September 1989 and October 1995, 144 patients underwent a vascular access operation. In March 1997, 102 patients (56 M, 46 F) who had been followed up for more than 18 months (median; 37 months, range; 18-102 months) were included in the study. The median age of the patients was 52 years (range; 19-78 years). In 35 patients, renal disease was secondary to diabetes mellitus. The type of vascular access was a polytetrafluoroethylene (PTFE) graft in 17 patients. Seventy-seven patients received recombinant human erythropoietin (r-HuEPO) therapy during the follow-up period. Plasma fibrinogen, albumin, total cholesterol, hematocrit, platelets and creatinine were measured at the time of operation. Vascular access failure was defined as the occurrence of complications requiring transluminal angioplasty, thrombolytic therapy or surgical repair. RESULTS: Thirty-eight patients had at least one vascular access failure and the incidence was 0.3 (range; 0-2.4) episodes per patient-year. The survival rate of vascular access was 78% (native fistula; 80%, PTFE graft; 71%) after 12 months and 70% (native fistula; 73%, PTFE graft; 51%) after 24 months. Older age, a PTFE graft, r-HuEPO therapy, higher hematocrit, lower albumin and higher fibrinogen levels were significantly associated with vascular access failure, whereas gender, diabetes mellitus, total cholesterol and platelet count were not. Plasma fibrinogen was inversely correlated with albumin (r=-0.38, P=0.001). The cumulative vascular access survival was significantly lower in patients with high plasma fibrinogen levels (> or = 460 mg/dl) compared with patients with low levels (< 460 mg/dl) (P=0.007). Independent risk factors for vascular access failure analysed by Cox's proportional hazards model were older age (RR; 1.36 by 10-year increment), higher fibrinogen level (RR; 1.20 by 100 mg/dl increment), PTFE graft (RR; 2.28) and r-HuEPO therapy (RR; 3.79). CONCLUSION: High plasma fibrinogen level is an independent risk factor for vascular access failure in haemodialysis patients.  (+info)

Transdermal photopolymerization for minimally invasive implantation. (2/3384)

Photopolymerizations are widely used in medicine to create polymer networks for use in applications such as bone restorations and coatings for artificial implants. These photopolymerizations occur by directly exposing materials to light in "open" environments such as the oral cavity or during invasive procedures such as surgery. We hypothesized that light, which penetrates tissue including skin, could cause a photopolymerization indirectly. Liquid materials then could be injected s.c. and solidified by exposing the exterior surface of the skin to light. To test this hypothesis, the penetration of UVA and visible light through skin was studied. Modeling predicted the feasibility of transdermal polymerization with only 2 min of light exposure required to photopolymerize an implant underneath human skin. To establish the validity of these modeling studies, transdermal photopolymerization first was applied to tissue engineering by using "injectable" cartilage as a model system. Polymer/chondrocyte constructs were injected s.c. and transdermally photopolymerized. Implants harvested at 2, 4, and 7 weeks demonstrated collagen and proteoglycan production and histology with tissue structure comparable to native neocartilage. To further examine this phenomenon and test the applicability of transdermal photopolymerization for drug release devices, albumin, a model protein, was released for 1 week from photopolymerized hydrogels. With further study, transdermal photpolymerization potentially could be used to create a variety of new, minimally invasive surgical procedures in applications ranging from plastic and orthopedic surgery to tissue engineering and drug delivery.  (+info)

Defensins impair phagocytic killing by neutrophils in biomaterial-related infection. (3/3384)

The implantation of foreign material carries a risk of infection which frequently is resistant to all treatment short of removing the implant. We have previously shown that these materials activate neutrophils by contact, leading to production of oxygen free radicals accompanied by release of granule products. Such activation further results in depletion of local host defenses, including the capacity of biomaterial-activated neutrophils to kill bacteria. Among the granule products released from neutrophils are small cationic antibacterial peptides (human neutrophil peptides [HNP]) known as defensins. Here we tested the hypothesis that defensins, released from activated neutrophils onto the surface of biomaterials, might play a role in the deactivation of subsequent neutrophil populations. Incubation of neutrophils with purified HNP resulted in a dose-related impairment of stimulus-induced oxygen radical production and of phagocytic killing. Furthermore, fresh neutrophils added to biomaterial-associated neutrophils exhibited impaired phagocytic killing. This impairment could be abrogated by antibody to HNP but not by an irrelevant antibody. Taken together, these observations support the idea that neutrophils activated at a material surface can create, by means of HNP release, an environment hostile to their microbicidal function and that of their infiltrating brethren.  (+info)

Cylindrical or T-shaped silicone rubber stents for microanastomosis--technical note. (4/3384)

The ostium of the recipient artery and the orifice of the donor artery must be clearly visualized for the establishment of microvascular anastomosis. Specially designed colored flexible cylindrical or T-shaped silicone rubber stents were made in various sizes (400 or 500 microns diameter and 5 mm length) and applied to bypass surgery in patients with occlusive cerebrovascular disease such as moyamoya disease and internal carotid artery occlusion. The colored flexible stents facilitated confirmation of the ostium of the artery even in patients with moyamoya disease and allowed precise microvascular anastomosis without problems caused by the stent.  (+info)

Effect of dialyser biocompatibility on recovery from acute renal failure after cadaver renal transplantation. (5/3384)

BACKGROUND: It has been reported that patients with acute renal failure (ARF) requiring haemodialysis show an improved recovery of renal function when the dialysis treatment is performed using a biocompatible membrane rather than a bioincompatible membrane. However, most recent published human trials have not been able to confirm these findings. METHOD: Over a 2-year period, we prospectively studied 53 patients with ARF after cadaver renal transplantation who required haemodialysis and randomized them into two treatment groups. One group underwent dialysis with a cuprophane membrane and the other group underwent haemodialysis with a more biocompatible membrane, polysulfone. All patients received an immunosuppressive regimen which included azathioprine, prednisone and cyclosporine. RESULTS: There was no difference by patient characteristics or immunosuppressive regimen before acute tubular necrosis (ATN) recovery. In both groups the number of haemodialysis sessions required prior to the recovery of renal function (6.57+/-2.79 vs 6.05+/-2.40), the number of oliguric days (16.25+/-5.14 vs 14.40+/-4.67) and the number of hospital days (33.38+/-12.85 vs 30.10+/-11.00), were not statistically different. There was also no difference in long-term allograft outcome. CONCLUSION: Our data demonstrate that the use of a more biocompatible membrane had no influence on the recovery from acute renal failure after renal transplantation.  (+info)

Noninvasive measurement of anatomic structure and intraluminal oxygenation in the gastrointestinal tract of living mice with spatial and spectral EPR imaging. (6/3384)

EPR imaging has emerged as an important tool for noninvasive three-dimensional (3D) spatial mapping of free radicals in biological tissues. Spectral-spatial EPR imaging enables mapping of the spectral information at each spatial position, and, from the observed line width, the localized tissue oxygenation can be mapped. We report the development of EPR imaging instrumentation enabling 3D spatial and spectral-spatial EPR imaging of small animals. This instrumentation, along with the use of a biocompatible charcoal oximetry-probe suspension, enabled 3D spatial imaging of the gastrointestinal (GI) tract, along with mapping of oxygenation in living mice. By using these techniques, the oxygen tension was mapped at different levels of the GI tract from the stomach to the rectum. The results clearly show the presence of a marked oxygen gradient from the proximal to the distal GI tract, which decreases after respiratory arrest. This technique for in vivo mapping of oxygenation is a promising method, enabling the noninvasive imaging of oxygen within the normal GI tract. This method should be useful in determining the alterations in oxygenation associated with disease.  (+info)

Functional arteries grown in vitro. (7/3384)

A tissue engineering approach was developed to produce arbitrary lengths of vascular graft material from smooth muscle and endothelial cells that were derived from a biopsy of vascular tissue. Bovine vessels cultured under pulsatile conditions had rupture strengths greater than 2000 millimeters of mercury, suture retention strengths of up to 90 grams, and collagen contents of up to 50 percent. Cultured vessels also showed contractile responses to pharmacological agents and contained smooth muscle cells that displayed markers of differentiation such as calponin and myosin heavy chains. Tissue-engineered arteries were implanted in miniature swine, with patency documented up to 24 days by digital angiography.  (+info)

Thrombopoietin stimulates endothelial cell motility and neoangiogenesis by a platelet-activating factor-dependent mechanism. (8/3384)

In this study, we demonstrate that human umbilical cord vein-derived endothelial cells (HUVECs) expressed c-Mpl, the thrombopoietin (TPO) receptor, and that TPO activates HUVECs in vitro, as indicated by directional migration, synthesis of 1-alkyl-/1-acyl-platelet-activating factor (PAF) and interleukin-8 (IL-8), and phosphorylation of the signal transducers and activators of transcription (STAT) STAT1 and STAT5B. The observation that WEB 2170 and CV3988, 2 structurally unrelated PAF receptor antagonists, prevented the motility of HUVECs induced by TPO suggests a role of PAF as secondary mediator. Moreover, kinetic analysis of TPO-induced tyrosine phosphorylation of STAT demonstrated that STAT5B activation temporally correlated with the synthesis of PAF. PAF, in turn, induced a rapid tyrosine phosphorylation of STAT5B and PAF receptor blockade, by WEB 2170, preventing both TPO- and PAF-mediated STAT5B activation. The in vivo angiogenic effect of TPO, studied in a mouse model of Matrigel implantation, demonstrated that TPO induced a dose-dependent angiogenic response that required the presence of heparin. Moreover, the in vivo angiogenic effect of TPO was inhibited by the PAF receptor antagonist WEB 2170 but not by the anti-basic fibroblast growth factor neutralizing antibody. These results indicate that the effects of TPO are not restricted to cells of hematopoietic lineages, because TPO is able to activate endothelial cells and to induce an angiogenic response in which the recruitment of endothelial cells is mediated by the synthesis of PAF. Moreover, biochemical analysis supports the hypothesis that STAT5B may be involved in the signaling pathway leading to PAF-dependent angiogenesis.  (+info)

US demand for biocompatible materials is forecast to increase 4.9 percent annually to $5.6 billion in 2018. Ceramic materials will grow the fastest based on improved nanotechnology compounds for orthopedic implants, spinal fixation devices and dental products. Natural polymers will be the second fastest growing segment, paced by hyaluronic acid.This study analyzes the $4.4 billion US biocompatible materials industry. It presents historical demand data (2003, 2008 and 2013) and forecasts (2018 and 2023) by product (e.g., synthetic polymers, natural polymers, ceramics, metals) and application (e.g., surgical and medical instruments, surgical appliances and supplies, dental products and materials, drug delivery products, electromedical equipment, diagnostic products, ophthalmic goods).The study also considers market environment factors, details industry structure, evaluates company market share and profiles 31 industry players, including Dow Chemical, BASF and PolyOne.
A method of permanently modifying the surface of a substrate material so as to develop a microscopically smooth, biocompatible surface thereon comprises covalently grafting at least a first biocompatible material, preferably having pendant terminal carboxylic acid or amine groups, to the surface of the substrate material by radio frequency plasma-induced grafting. In addition, a method of permanently modifying the surface of the substrate material comprises cross-linking a second biocompatible material to the first biocompatible material grafted to the substrate material using a cross-linking agent. Further, a prosthesis used in mammals, including an intraocular lens, comprises a polymer core and at least a first biocompatible material, preferably having pendant terminal carboxylic acid or amine groups, covalently grafted to the polymer core by radio frequency plasma induction. The prosthesis used in mammals may further comprise a second biocompatible material cross-linked to the grafted first
A flexible covered stent includes a stent covered on a first surface by a first layer of biocompatible material and on a second surface by a second layer of biocompatible material, the first and second layers of biocompatible material being bonded to one another through a wall in the stent. The first layer of biocompatible material is longer than the second layer of biocompatible material such that at least a portion of the second surface of the stent is left uncovered, imparting flexibility to the stent. A mid portion of the second surface of the stent can be left uncovered to impart flexibility to the stent similar to that enjoyed by a bare stent.
We present in this category the monomers used for biomaterials research classified according to their chemical structures such as acrylic monomers, lactone monomers, dithiol monomers, and diisocyanate monomers. Among them acrylic monomers contain largest number of products and are often utilized for biomaterials or biocompatible materials research, using conventional radical polymerization or controlled radical polymerization. In addition to the common monomers for biomaterials research including 2-hydroxyethyl methacrylate (HEMA) [M0085]1) and N-isopropylacrylamide (NIPAAm) [I0401]2), TCI has zwitterionic monomers or monomers with reactive functional groups useful for conjugation with proteins or peptides present in our catalog. Zwitterionic monomers contain both cationic and anionic groups in the same molecule. Common zwitterionic monomer structures include phosphobetaines, sulfobetaines, and carboxybetaines.3,4) One of the phosphobetaine zwitterionic monomers, 2-(methacryloyloxy)ethyl 2-
A prosthesis is formed from a biocompatible material having one or more associated cell adhesion stimulating proteins. The biocompatible material can be a ceramic material or a carbon coated material. The cell adhesion stimulating protein can be a structural protein or a polypeptide growth factor, such as vascular endothelial growth factor. Viable cells can be adhered in vivo or in vitro to the biocompatible material with the cell adhesion stimulating protein.
Cell-material adhesions are fundamental in cell biology. Not only the chemical identity of the material, but also the spatial and temporal presentation of the adhesion molecules determine how different cell types interact with a material and activate signaling. Hence, the design of cell-instructive materials for studying cell biology and applications in tissue engineering, medical implants and cell-based screening all require independent spatiotemporal control of cell-material interactions, not just for one but for multiple cell types. By using photoswitchable proteins that respond to different colors of light, we want to photochemically control the cell-material interactions for multiple cell types. Manipulating cell-material interactions photochemically will give us control over cell adhesion with high spatial and temporal resolution, making it possible to study and manipulate intercellular processes such as collective cell migration and differentiation, and intracellular processes such as ...
|p|Silicon Carbide (SiC) is a wide-band-gap semiconductor biocompatible material that has the potential to advance advanced biomedical applications. SiC devices offer higher power densities and lower energy losses, enabling lighter, more compact and higher efficiency products for biocompatible and long-term in vivo applications ranging from heart stent coatings and bone implant scaffolds to neurological implants and sensors.|/p| |p|The main problem facing the medical community today is the lack of biocompatible materials that are also capable of electronic operation. Such devices are currently implemented using silicon technology, which either has to be hermetically sealed so it cannot interact with the body or the material is only stable in vivo for short periods of time. |/p| |p|For long term use (permanent implanted devices such as glucose sensors, brain-machine-interface devices, smart bone and organ implants) a more robust material that the body does not recognize and reject as a foreign (i.e., not
This thesis deals with novel aspects through Nanotechnologyof"bottom-up"and"top-down"strategies in combination with Biotechnology as aninterdisciplinary study. The feasibility of chemically tailoredsuperparamagnetic iron oxide nanoparticles (SPION) forin-vivobiomedical applications has beendemonstrated.. The main objects of the present thesis are to design thesurface modified SPION with biocompatible agents, varying fromorganic to polymer and biocompatible materials such asproteins. The particles have been applied to intact organs ofliving animals (rat brain) to examine how they interactpreferentially in the brain tissue and to confirm thefeasibility of the SPION for biomedical applications using MRimaging as an exogenous contrast media.. Several different types of materials including SPION (firstgeneration), immobilization of biocompatible materials on SPION(second generation), forin-vivobiomedical applications and nanowires andnanotubes have been approached from the aspect ofNanotechnology. ...
Medical devices, and in particular implantable medical devices, may be coated to minimize or substantially eliminate a biological organisms reaction to the introduction of the medical device to the organism. The medical devices may be coated with any number of biocompatible materials. Therapeutic drugs, agents or compounds may be mixed with the biocompatible materials and affixed to at least a portion of the medical device. These therapeutic drugs, agents or compounds may also further reduce a biological organisms reaction to the introduction of the medical device to the organism. Various materials and coating methodologies may be utilized to maintain the drugs, agents or compounds on the medical device until delivered and positioned.
Commercial sunscreens contain two types of compounds to block both longwave UV-A light that may cause cancer and shortwave UV-B light that causes sunburn. Some fish, algae, and cyanobacteria produce amino acids called mycosporines that absorb both UV-A and UV-B light. To develop more effective, biocompatible sunscreens, some manufacturers have added mycosporines to their formulations. But free mycosporine molecules can diffuse through a smear of sunscreen, making it difficult for the UV-blocking agents to stay where they are applied.. ...
A flexible stent having a waveform pattern formed from a sheet of biocompatible material and into a tubular shape for maintaining the patency of a lumen such as in a coronary vessel. The waveform pattern of the stent is formed from a flat sheet of malleable, biocompatible material by, for example, photochemically etching the sheet and leaving a framework or plurality of closed cells. The waveform pattern is formed into a tubular shape around a deflated, delivery catheter balloon with segments of the closed cells being interposed only overlapping a reinforcing member extending longitudinally along the stent. The stent material is treated to reduce the coefficient of friction of the material and to aid in the radial expansion of the stent with the balloon. Radiopaque markers are positioned at the ends of the stent to aid the physician in positioning the stent at an occlusion site.
Background The cell-material interaction is a complex bi-directional and dynamic process that mimics to a certain extent the natural interactions of cells with the extracellular matrix. Cells tend to adhere and rearrange adsorbed extracellular matrix (ECM) proteins on the material surface in a fibril-like pattern. Afterwards, the ECM undergoes proteolytic degradation, which is a mechanism for the removal of the excess ECM usually approximated with remodeling. ECM remodeling is a dynamic process that consists of two opposite events: assembly and degradation. Methodology/Principal Findings This work investigates matrix protein dynamics on mixed self-assembled monolayers (SAMs) of -OH and -CH3 terminated alkanethiols. SAMs assembled on gold are highly ordered organic surfaces able to provide different chemical functionalities and well-controlled surface properties. Fibronectin (FN) was adsorbed on the different surfaces and quantified in terms of the adsorbed surface density, distribution and
An apparatus and method for making an occlusion device for occluding a body vessel. The apparatus and method include providing a frame and a mandrel. The frame has a hub extending along a longitudinal axis from a proximal end to a distal end. A plurality of arcuate legs are attached to the hub and extend distally. The arcuate legs are flexible and have inner surfaces defining an inner profile in an unconstrained state. The mandrel has an outer surface corresponding to the inner profile of the occlusion device. A base layer of a biocompatible material is disposed on the outer surface of the mandrel. The frame is placed on the outer surface with the base layer between the frame and the mandrel. The frame is attached to the base layer such that the biocompatible material forms a membrane extending along and between the arcuate legs.
Ver más] Tissue engineering is an emerging field of research which combines the use of cell-seeded biomaterials both in vitro and/or in vivo with the aim of promoting new tissue formation or regeneration. In this context, how cells colonize and interact with the biomaterial is critical in order to get a functional tissue engineering product. Cell-biomaterial interaction is referred to here as the phenomenon involved in adherent cells attachment to the biomaterial surface, and their related cell functions such as growth, differentiation, migration or apoptosis. This process is inherently complex in nature involving many physico-chemical events which take place at different scales ranging from molecular to cell body (organelle) levels. Moreover, it has been demonstrated that the mechanical environment at the cell-biomaterial location may play an important role in the subsequent cell function, which remains to be elucidated. In this paper, the state-of-the-art research in the physics and mechanics ...
Despite extensive preventative efforts, the problem of controlling infections associated with biomedical materials persists. Bacteria tend to colonize on biocompatible materials and form biofilms; thus, novel biomaterials with antibacterial properties are of great interest. In this thesis, titanium dioxide (TiO2)-associated photocatalysis under ultraviolet (UV) irradiation was investigated as a strategy for developing bioactivity and antibacterial properties on biomaterials. Although much of the work was specifically directed towards dental materials, the results presented are applicable to a wide range of biomaterial applications.. Most of the experimental work in the thesis was based on a resin-TiO2 nanocomposite that was prepared by adding 20 wt% TiO2 nanoparticles to a resin-based polymer material. Tests showed that the addition of the nanoparticles endowed the adhesive material with photocatalytic activity without affecting the functional bonding strength. Subsequent studies indicated a ...
AbstractOptical technologies are essential for the rapid and efficient delivery of health care to patients. Efforts have begun to implement these technologies in miniature devices that are implantable in patients for continuous or chronic uses. In this review, we discuss guidelines for biomaterials suitable for use in vivo. Basic optical functions such as focusing, reflection, and diffraction have been realized with biopolymers. Biocompatible optical fibers can deliver sensing or therapeutic-inducing light into tissues and enable optical communications with implanted photonic devices. Wirelessly powered, light-emitting diodes (LEDs) and miniature lasers made of biocompatible materials may offer new approaches in optical sensing and therapy. Advances in biotechnologies, such as optogenetics, enable more sophisticated photonic devices with a high level of integration with neurological or physiological circuits. With further innovations and translational development, implantable photonic devices offer a
Center for Hierarchical Manufacturing: Diseases and disorders of cartilage tissue are one of the leading causes of disability in the US. However, many biocompatible materials do not have sufficient mechanical strength and elasticity to serve as scaffolds for cartilage repair. University of Massachusetts Amherst researchers Surita Bhatia and Gregory Tew have developed techniques to disperse nanosized discs within biocompatible polymer matrices, resulting in biocompatible gels with superior control over mechanical properties. By varying the loading and surface chemistry of the nanodiscs, the elasticity of these materials can be tuned to match the mechanical properties of several soft tissues, including cartilage. Initial results also suggest that the presence of the nanodiscs result in improved cell viability.. ...
Microfabricated systems provide an excellent platform for the culture of cells, and are an extremely useful tool for the investigation of cellular responses to various stimuli. Advantages offered over traditional methods include cost-effectiveness, controllability, low volume, high resolution, and sensitivity. Both biocompatible and bioincompatible materials have been developed for use in these applications. Biocompatible materials such as PMMA or PLGA can be used directly for cell culture. However, for bioincompatible materials such as silicon or PDMS, additional steps need to be taken to render these materials more suitable for cell adhesion and maintenance. This review describes multiple surface modification strategies to improve the biocompatibility of MEMS materials. Basic concepts of cell-biomaterial interactions, such as protein adsorption and cell adhesion are covered. Finally, the applications of these MEMS materials in Tissue Engineering are presented.
Edited by: Prof Jeong-Yeol Yoon. The well-studied tissue interaction with biomaterials has inspired a blossoming field of alternative uses for these substrates. Current methods for scaffold fabrication include hydrogels, 3D printed biocompatible materials, and other bio-inspired tissue engineered implants. Traditional study of such biomaterials has primarily focused on the implants used in vivo. The recent surge in alternative uses for biomaterials has pushed for the investigation of intravenous drug and gene delivery carriers and the use of biomaterials for lab-on-a-chip (LOC) applications, particularly stem cell differentiation and cancer studies. This thematic series highlights these exciting new trends in biomaterials.. If you are interested in submitting a manuscript for this thematic series, please contact the series editor, Jeong-Yeol Yoon, with a title and an abstract. The series will run throughout 2015.. This collection of articles has not been sponsored and articles have undergone the ...
Mansoor Amiji, Ph.D., Associate Professor of Pharmaceutical Sciences in the School of Pharmacy, Bouve College of Health Sciences and Associate Director of the Nanomedicine Consortium, Northeastern University in Boston, MA. Dr. Amiji received his undergraduate degree in pharmacy from Northeastern University in 1988 and his Ph.D. in pharmaceutics/biomaterial science from Purdue University in 1992. His areas of specialization include polymeric biomaterials, drug delivery systems, and nanomedical technologies. Dr. Amiji s research interests include synthesis of novel polymeric materials for medical and pharmaceutical applications; surface modification of cationic polymers by the complexation-interpenetration method to develop biocompatible materials; preparation and characterization of polymeric membranes and microcapsules with controlled permeability properties for medical and pharmaceutical applications; target-specific drug and vaccine delivery systems for gastrointestinal tract infections; ...
Dr. Amiji received his undergraduate degree in pharmacy from Northeastern University in 1988 and his PhD in pharmaceutics from Purdue University in 1992. His areas of specialization include polymeric biomaterials, advanced drug delivery systems, and nanomedical technologies.Dr. Amijis research interests include synthesis of novel polymeric materials for medical and pharmaceutical applications; surface modification of cationic polymers by the complexation-interpenetration method to develop biocompatible materials; preparation and characterization of polymeric membranes and microcapsules with controlled permeability properties for medical and pharmaceutical applications; target-specific drug and vaccine delivery systems for gastrointestinal tract infections; localized delivery of cytotoxic and anti-angiogenic drugs for solid tumors in novel biodegradable polymeric nanoparticles intracellular delivery systems for drugs and genes using target-specific, long-circulating, biodegradable polymeric
Dr. Amiji received his undergraduate degree in pharmacy from Northeastern University in 1988 and his PhD in pharmaceutics from Purdue University in 1992. His areas of specialization include polymeric biomaterials, advanced drug delivery systems, and nanomedical technologies.. Dr. Amijis research interests include synthesis of novel polymeric materials for medical and pharmaceutical applications; surface modification of cationic polymers by the complexation-interpenetration method to develop biocompatible materials; preparation and characterization of polymeric membranes and microcapsules with controlled permeability properties for medical and pharmaceutical applications; target-specific drug and vaccine delivery systems for gastrointestinal tract infections; localized delivery of cytotoxic and anti-angiogenic drugs for solid tumors in novel biodegradable polymeric nanoparticles intracellular delivery systems for drugs and genes using target-specific, long-circulating, biodegradable polymeric ...
Natural biopolymer nanoparticles (NPs), including nanocrystalline cellulose (CNC) and lignin, have shown potential as scaffolds for targeted drug delivery syste...
Description. Biomaterials are substances that have been designed to direct the course of any therapeutic or diagnostic procedure by controlling interactions with biological systems. A large toolbox of non-biological materials has been engineered to study cell behavior at the cell-material interface. In this course, we will examine how this interface can be leveraged to study cellular systems and generate novel therapeutics. This course is one of many Advanced Undergraduate Seminars offered by the Biology Department at MIT. These seminars are tailored for students with an interest in using primary research literature to discuss and learn about current biological research in a highly interactive setting. Many instructors of the Advanced Undergraduate Seminars are postdoctoral scientists with a strong int Biomaterials are substances that have been designed to direct the course of any therapeutic or diagnostic procedure by controlling interactions with biological systems. A large toolbox of ...
A continuous glucose sensor employing radio frequency (RF) signals is presented using the biocompatible material Silicon Carbide (SiC). Unlike biosensors that require direct contact with interstitial fluids to trigger chemical reactions to operate, this biocompatible SiC sensor does not require a direct interface. The sensing mechanism for this SiC sensor is based upon a shift in resonant frequency, as a function of change in glucose levels, which electrically manifests itself as a change in blood permittivity and conductivity. For in vivo applications the antenna sensor needs to operate inside the body environment, and it has been found that the best operational location of this biocompatible SiC sensor is within fatty tissue in close proximity to blood vessels. To test glucose levels, measurements using synthetic body fluid (SBF), which is electrically equivalent to blood plasma, were performed. Changes in sensor performance to varying glucose levels were measured and a shift in resonant frequency to
Biomaterials in blood-contacting devices by Meng-Jiy Wang; 1 edition; First published in 2009; Subjects: Blood Coagulation, Platelet Adhesiveness, Biocompatible Materials, Polymers in medicine, Thrombosis, Biocompatibility, Adverse effects, Prevention & control, Physiology
The present invention relates to an expansible hollow part, having at least one opening, which consists of an elastic biocompatible material and which comprises at least one biologically active substance and, optionally at least one matrix compound. The invention also provides a method of producing said expansible hollow part, a medical device covered at least partially with said hollow part, a kit-of-parts comprising said hollow part of the invention and the use of said hollow part as a therapeutic device and for protecting a medical device.
Autori: zaharia c., moreau m.f., zecheru t., marculescu b., filmon r., cincu c., basle m.f., chappard d. Editorial: 34th european symposium on calcified tissues, copenhagen, 2007.. Rezumat:. Poly(methyl methacrylate -pMMA) is used as dental or bone cement. A major drawback of the polymeric biomaterials is that they are radiolucent since they hardly absorb X-ray radiation due to the absence of heavy elements within their structure ...
TY - JOUR. T1 - Effects of systematic variation of amino acid sequence on the mechanical properties of a self-assembling, oligopeptide biomaterial. AU - Caplan, Michael. AU - Schwartzfarb, Elissa M.. AU - Zhang, Shuguang. AU - Kamm, Roger D.. AU - Lauffenburger, Douglas A.. PY - 2002. Y1 - 2002. N2 - In order to elucidate design principles for biocompatible materials that can be created by in situ transformation from self-assembling oligopeptides, we investigate a class of oligopeptides that can self-assemble in salt solutions to form three-dimensional matrices. This class of peptides possesses a repeated sequence of amino acid residues with the type: hydrophobic/negatively-charged/hydrophobic/positively-charged. We systematically vary three chief aspects of this sequence type: (1) the hydrophobic side chains; (2) the charged side chains; and (3) the number of repeats. Each of these has been previously shown to influence the self-assembly properties of these materials. Employing a rheometric ...
Research in the biomedical and life sciences is a robust part of the intellectual activity at IEN. Nanoscale approaches to the development of new biocompatible materials and medical devices play a vital role in technical advancement and innovation for applications as diverse as diagnostics, imaging, biosensors, drug delivery and therapeutics, and biomaterials and surface modification for implantable devices.. ...
Biocompatible materials with nano-scale structure hold great promise for controlled and targeted delivery and half-life extension of both small-molecule drugs and various classes of biologics, such as peptides, proteins, plasmid DNA and synthetic oligodeoxynucleotides. Promising delivery systems include microcapsules, liposomes, macromolecular conjugates, nanoparticles, dendrimers, and biological stuctures such polypeptides, benign viruses and bacteriophages. This symposium will focus on commercially promising new materials and approaches. ...
Restorative Sciences & Biomaterials is at the forefront of developing materials for computerized fabrication of restorations. Our faculty have developed new concepts and techniques for analyzing the interaction between biomaterials and cells at the molecular and genetic levels. We have strategically positioned ourselves to create, analyze, and test novel synthetic materials for tissue replacement and prosthetic therapy.. The primary functions of Restorative Sciences & Biomaterials are:. ...
Shuhei Furukawa(古川修平) Address: Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, iCeMS Research Bldg, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan Tel: +81-75-753-9868 E-mail: [email protected] [Academic Career] 2017/Apr.-present: Associate Professor (PI): Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Japan 准教授(研究室主宰者):京都大学高等研究院物質ー細胞統合システム拠点 2010/Oct.-2017/Mar: Associate Professor: Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Japan 准教授:京都大学物質ー細胞統合システム拠点 2008/Jan.-2013/Mar: Group Leader, Hybrid…
A wide range of cellular, macromolecular and particulate carriers of different sizes, which are made of diverse range of biodegradable/ biocompatible materials have been exploited as potential drug delivery systems with the aim of improving cancer chemo-therapy.
3. After the space is cleaned and shaped, the endodontist fills the root canals with a biocompatible material, usually a rubber-like material called gutta-percha. The gutta-percha is placed with an adhesive cement to ensure complete sealing of the root canals. In most cases, a temporary filling is placed to close the opening. The temporary filling will be removed by your dentist before the tooth is restored.. ...
Next, a small opening is made in the surface of the affected tooth to give access to the pulp chamber and root canals. Tiny instruments are used, sometimes with the aid of a microscope, to remove the dead and dying pulp tissue from inside these narrow passageways. The chamber and empty canals are then cleaned, disinfected, and prepared to receive a filling of inert, biocompatible material. Finally, adhesive cement is used to seal the opening in the tooth, preventing future infection.. Following root canal treatment, your tooth may feel some sensitivity or tenderness for a few days. Over-the-counter pain relievers like ibuprofen are generally effective in relieving discomfort, but prescription medications may also be given if needed. During this period, it may help to avoid biting hard on the affected tooth. All of these symptoms, however, should be temporary.. To further protect the tooth and restore it to full function, its usually necessary to have a crown or other restoration placed on it. ...
Raindrop is the worlds first inlay to change the shape of the cornea (the clear, front part of the eye) to improve near vision and is designed to reduce or eliminate the need for reading glasses. The outpatient procedure takes about 10-minutes and patients are able to resume most normal activities the next day. Raindrop is incredibly small - about the size of a pinhead and less than half the thickness of a human hair - and is bioengineered to mimic the natural cornea. It is made of a soft, biocompatible material, similar to a soft contact lens, comprising of approximately 80 percent water.. Who should consider the Raindrop Near Vision Inlay? ...
After numbing the area, a tiny hole is made in your tooth to access the pulp chamber and canals. The diseased tissue is removed, and the pulp chamber and the canal(s) are disinfected all the way to the root end(s). Teeth in the front of the mouth have one root and generally one canal; back teeth have two or three roots and generally three or four canals. Those canals and the pulp chamber are filled with an inert, biocompatible material, and sealed with adhesive cement. The access hole will receive a temporary filling.. ...
You are more than just your teeth. As such, our philosophy is to evaluate and treat patients-not just teeth. Improving the health of our patients is always our primary focus, and to achieve that goal, we take an interdisciplinary approach. This means that when necessary, all our doctors and specialists will review your current situation, and advise collectively on a treatment plan. If you are looking for a Boston Dentist look no further.. We work very closely with our lab technicians, and have chosen only premier partners who have demonstrated the ability to reproduce the highest quality work over and over again.. We use only safe, biocompatible materials.. We want you to feel confident in our approach, and know exactly what materials we use in restoring teeth for optimal dental health. We are committed to only using materials that are biocompatible-safe for our patients and the environment-have the highest and purest quality, and mimic natural dentition as much as possible. We do not use ...
A controllable, wearable MRI-compatible, fixed-rate (VOO) pacemaker includes a self-contained power source and a pulse generator housed at the proximal end of a photonic catheter in a first enclosure designed to operate externally of a patients body. Electrical pulses output by the pulse generator are converted into light energy and directed into the proximal end of the photonic catheter. The photonic catheter includes an optical conduction pathway over which is formed a covering of biocompatible material. Light entering the proximal end of the photonic catheter is transmitted through the optical conduction pathway, where it is collected and converted back to electrical energy at a second enclosure located at the distal end of the photonic catheter. The second enclosure houses an opto-electrical transducer that converts the optical pulses to electrical pulses and delivers them to bipolar heart electrodes. One of the electrodes may comprise the second enclosure housing the opto-electrical
Blood Collection Bag Specifications:. Single Blood Bags (350 ml). Blood collection bag made up of DEHP (Di-2-ethylhexyl phthalate) plasticized PVC (Polyvinylchloride), collapsible non-vented sterile containers complete with collecting tube for completely closed system to avoid the chances of contamination. Capacity: Single blood bag - 350 ml. Design and shapes:. 1.Flexible pre-sterilized 2. Pyrogen free 3. Non-toxic, non-haemolytic, biocompatible material 4. No risk of contamination and air embolism (closed system) with all leak proof seals (Disposable Bags) 5. Slit on the both sides of the bags should be enough to accommodate 5 - 10 ml volume test tubes(optional) 6. The capacity of the bag should be enough to prevent any ballooning/rupture of the bag from the seam when it is filled up with the requisite volume of blood. Tubing of bag:. 1. Flexible non-kinking 2. Non-sticking 3. Transparent 4. Leak-proof 5. The tubing should have same ID/Segment number as that on the bag 6. The tubes should have ...
They guarantee perfect transmission of the signal and an optimal adhesiveness for easy application and removal. The support is made of biocompatible material. Electrical performance according to ANSI/AAMI EC 12. Different shapes and sizes are avaliable to suit your every need. ...
One free sample of Dexcom tape is limited to one per email. Biocompatible material Sweat-proof Water-proof Fray-proof Easy 3 part backing for easy application O
Although most biomedical devices are non-toxic, disturbed acute and chronic inflammation and the lack of integration in tissues is a concern. At the time of biomaterial insertion, protein adsorption onto material surfaces precedes cell adhesion and is believed to alter unfavorably the acute inflammatory response and the subsequent tissue healing. The wound healing may encapsulate the biomaterial in a fibrous tissue. The process depends probably on the surface physical and chemical characteristics, and the accumulation of blood plasma proteins such as fibrinogen, immunoglobulins (Ig:s) and complement. Platelets and neutrophil granulocytes, which both possess inflammatory capabilities, are the first cells to appear at a surface during contact with blood. In the present thesis, model biomaterial surfaces were prepared, and the in vitro deposition of plasma proteins and the subsequent behavior of neutrophils and platelets evaluated.. Complement activation at artificial surfaces during contact with ...
Polymeric chains crosslinked through supramolecular interactions-directional and reversible non-covalent interactions-compose an emerging class of modular and tunable biomaterials. The choice of chemical moiety utilized in the crosslink affords different thermodynamic and kinetic parameters of association, which in
Bionanomaterials are molecular materials composed partially or completely of biological molecules and resulting in molecular structures having a Nano-scale-dimension. Magnetic nanomaterials are the magnetic particles of nm size which are having unique magnetic properties. They are available in various forms such as dry powders, as surface functionalized powders or as stable dispersions in a variety of solvents, both aqueous and organic. Such Bionanomaterials may have potential applications as novel fibers, sensors, adhesives etc. Nano biomaterials account for 28.3% of the market share. Nano biomaterials are used for cancer treatment, regeneration, and polymeric ones act as gene delivery systems. Nanofiber scaffolds are those fibers which are having diameters less than 100 nm. Nano scaffolding is a process to regrow tissue and bone, also used in stem cell expansion. ...
TY - CHAP. T1 - Surface treatment of metallic biomaterials in contact with blood to enhance hemocompatibility. AU - Allain, J. P.. AU - Echeverry-Rendón, M.. PY - 2018/1/1. Y1 - 2018/1/1. N2 - A variety of material classes are used in biomedical applications: metals, ceramics, polymers, and composite (combination of some or all materials mentioned above). Those materials also can be founded in nature (natural materials) or can be chemically produced (synthetic materials). The criteria for selection from these classes will depend on the specific biomedical application, the characteristics of the native tissue to repair or replace, and the desired overall device function. In this chapter, a general approach about metals and their surface modification, its use as biomaterial and its interaction with body fluids and more specifically with blood will be discussed. We will end with an introduction to recent work on composite metal/polymer biomaterials used for tissue reconstruction and their ...
Microstructured surfaces are widely used in cell culture experiments to understand the fundamentals of cell-material interactions by a spatial control of cell adhesion and spreading. Recent studies have documented that both substrate chemistry and topography are tightly correlated to cell behaviours. For this reason a wide range of techniques have been explored for obtaining in a simple and cheap way reproducible patterned substrates. This paper describes how to produce micropattemed substrates by a spatial microarrangment of chemically different domains, produced by plasma deposition. Cell-repulsive zones, obtained by plasma deposited PolyethyleneOxide-like (PEO-like) coating, were alternated with cell-adhesive tracks, namely plasma deposited Acrylic Acid (pdAA) films. Time lapse experiments demonstrated that such patterns, suitable to exert chemical and topographical constraints for cell-adhesion, can also support migration of cells inside the produced pattern.. ...
This paper attempts to illustrate both the need for new approaches to biomaterials discovery as well as the significant promise inherent in the use of combinatorial and computational design strategies. The key observation of this Leading Opinion Pape
The healthy heart is comprised of many different cell types that work together to preserve optimal function. However, in a diseased heart the function of one or more cell types is compromised which can lead to many adverse events, one of which is myocardial infarction (MI). Immediately after MI, the cardiac environment is characterized by excessive cardiomyocyte death and inflammatory signals leading to the recruitment of macrophages to clear the debris. Proliferating fibroblasts then invade, and a collagenous scar is formed to prevent rupture. Better functional restoration of the heart is not achieved due to the limited regenerative capacity of cardiac tissue. To address this, biomaterial therapy is being investigated as an approach to improve regeneration in the infarcted heart, as they can possess the potential to control cell function in the infarct environment and limit the adverse compensatory changes that occur post-MI. Over the past decade, there has been considerable research into the
Harryman, D.T., Sidles, J.A., Harris, S.L., Lippit, S.B., Matsen, F.A. III. 1995. The effect of articular conformity and the size of humeral head component on laxity and motion after glenohumeral arthroplasty: a study in cadavera, J. Bone Jt. Surg. 77A, 555-563.Google Scholar ...
(Phys.org)-Self-moving gels can give synthetic materials the ability to act alive and mimic primitive biological communication, University of Pittsburgh researchers have found.
The mission of the Elisseeff Lab is to engineer technologies to repair lost tissues. We aim to bridge academic research and technology discovery to treat patients and address clinically relevant challenges related to tissue engineering. To accomplish this goal we are developing and enabling materials, studying biomaterial structure-function relationships and investigating mechanisms of tissue development to practically rebuild tissues. The general approach of tissue engineering is to place cells on a biomaterial scaffold that is designed to provide the appropriate signals to promote tissue development and ultimately restore normal tissue function in vivo. Understanding mechanisms of cellular interactions (both cell-cell and cell-material) and tissue development on scaffolds is critical to advancement of the field, particularly in applications employing stem cells. Translation of technologies to tissue-specific sites and diseased environments is key to better design, understanding, and... ...
Dental biomaterials are instruments that are used in dentistry. These are fabricated structures. Their focus is additional and improvement of missing tissues due to some disease or accidents and to restore its normal function. It is a professionals study in which structure, properties, and processing of these materials and interaction of these materials with the face and mouth tissues. It is mainly involved in restorative dentistry, prosthodontics, endodontics, and orthodontics. The uses of dental materials depend on the type of practice operated. New dental materials are introduced in the market rapidly.. ...
The Irvine laboratory works at the interface of materials science and immunology. Synthetic materials can be applied in two major ways to immunobioengineering: (1) Synthetic materials can modulate the function of immune cells by mimicking signals derived from the immune system or foreign pathogens, both as a probe for cell function and as a tool for immunotherapy- both in vitro and in vivo; (2) Synthetic materials can be used to create in vitro and in vivo models of the microenvironment present in lymphoid and non-lymphoid tissues, to better understand immunobiology in health and disease. To meet these goals, engineering must be married to an in-depth appreciation for the biology of these problems. Their laboratory is thus deeply interdisciplinary in every project. Key to their approach is a balanced emphasis on both the engineering and immunological aspects of the problems the Irvine group has chosen to address: In each of these projects, state of the art chemistry, polymer science, physics ...
The Irvine laboratory works at the interface of materials science and immunology. Synthetic materials can be applied in two major ways to immunobioengineering: (1) Synthetic materials can modulate the function of immune cells by mimicking signals derived from the immune system or foreign pathogens, both as a probe for cell function and as a tool for immunotherapy- both in vitro and in vivo; (2) Synthetic materials can be used to create in vitro and in vivo models of the microenvironment present in lymphoid and non-lymphoid tissues, to better understand immunobiology in health and disease. To meet these goals, engineering must be married to an in-depth appreciation for the biology of these problems. Their laboratory is thus deeply interdisciplinary in every project. Key to their approach is a balanced emphasis on both the engineering and immunological aspects of the problems the Irvine group has chosen to address: In each of these projects, state of the art chemistry, polymer science, physics ...
Sandia researchers are developing complex nanomaterials that look strikingly similar to the microstructures of diatoms and seashells. The materials may have potential for a wide range of applications. Jun Liu, manager for the Department of Chemical Synthesis and Nanomaterials at Sandia, said the goal is to develop general science and technology for reliable and scalable production of nanoscale materials based on environmentally benign chemical processes. The research team includes Jim Voigt, Zhengrong Tian, Matt McDermott, Randy Cygan, Louise Criscenti, Dianna Moore, Jessica Bickel, and Tom Sounart. The teams intent is to be able to predictively and precisely control a wide range of materials properties that are critical for the materials and device performances. These include composition, particle size and shape, crystalline structure, orientation, particle morphology, surface, and interface chemistry. Liu said the biochemical processes involved in biomaterials are too complicated for ...
Many different materials (natural and synthetic, biodegradable and permanent) have been investigated. Most of these materials have been known in the medical field before the advent of tissue engineering as a research topic, being already employed as bioresorbable sutures. Examples of these materials are collagen and some polyesters.. New biomaterials have been engineered to have ideal properties and functional customization: injectability, synthetic manufacture, biocompatibility, non-immunogenicity, transparency, nano-scale fibers, low concentration, resorption rates, etc. PuraMatrix, originating from the MIT labs of Zhang, Rich, Grodzinsky and Langer is one of these new biomimetic scaffold families which has now been commercialized and is impacting clinical tissue engineering.. A commonly used synthetic material is PLA - polylactic acid. This is a polyester which degrades within the human body to form lactic acid, a naturally occurring chemical which is easily removed from the body. Similar ...
1. INTRODUCTION. The biggest challenges in tissue engineering and biomaterials science have been the production and development of biomaterials able to mimic the complexity, physicochemical specificity and dynamics of the extracellular matrix (ECM) of tissues in such a way as to stimulate biomaterial/host tissue interactions that will elicit specific biological responses and lead the functional repair of tissue1. To achieve this goal, the surface properties of biomaterials have been modified with mimetic functional molecules in order to enhance the biocompatibility of implantable devices by carrying specific cell signals or by preventing undesired biological events that occur at the interface of material surface and living tissues.. Poly (α-hydroxyacids) polymers such as poly (β-caprolactone), poly (L-lactic acid), poly (glycolic-acid) and co-polymers are well-known bioabsorbable polymers that have been widely investigated as tissue engineering scaffolds. The advantages of this class of ...
INTRODUCTION Nowadays, detergents are normally used for floor cleaning in the hospital environment while the use of disinfectants is reserved for wards where patients with infectious diseases, in isolation, or with multiresistant microorganisms are treated.1-3 However, the surfaces must be cleaned correctly if the procedure is to be effective and to prevent the spreading of microorganisms to uncontaminated surfaces. Recent studies comparing the decontamination capacity of some microfiber and ultra-microfiber fabrics with that of conventional fabrics used in cleaning have shown that microfiber and ultra-microfiber fabrics remove dirt and microorganisms from surfaces more effectively.4,5 Given the high microbial load normally present, one of the drawbacks to cleaning surfaces, and in particular floors, using mops (even microfiber mops) is that the cloths - previously contaminated or contaminated during the cleaning operation - can disperse microorganisms. This can occur, for example, when a soiled ...
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Biomaterials can be derived either from nature or synthesized in the laboratory using a variety of chemical approaches utilizing metallic components, polymers, composite materials or ceramic. Medical implants are man-made devices, in contrast to a transplant, which is a transplanted biomedical tissue. It is often used and/or adapted for a medical application and thus comprises whole or part of a living structure or biomedical device. It performs augments or replaces a natural function. Such functions may be benign, like being used for a heart valve, or may be bioactive compound with a more interactive functionality such as hydroxyl-apatite coated with hip implants. For example, a construct with impregnated pharmaceutical products can be placed into the body, which permits the prolonged release of a drug over an extended period of time. A biomaterial may also be an auto graft, allograft or xenograft used as a transplant material. Present research and development is focused on Nano Biomaterials, ...
Biomaterials are a valuable alternative to a patients own transplanted soft tissue. They generate new gum tissue, thus avoiding the drawbacks of graft surgery.
A wheel of synthetic material for bicycles and the like. The wheel includes a rim, a plurality of spokes, and a hub, and is made in one piece by means of injection molding at the hub. Between each two adjacent spokes, the rim has a wall element which extends in the circumferential direction of the rim, extends from the connection location of each spoke on the rim to the middle of the rim portion between two spokes, and is rheologically designed as a preliminary flow cross-sectional area such that preliminary flows of the synthetic material enter the wall element from both spokes and flow more quickly from the two spoke connection locations to the middle of the rim portion than the two circumferential flows of synthetic material which advance in the remaining rim walls. This prohibits the two circumferential flows in the remaining rim walls from meeting at the middle of the rim portion and forming a cold flow seam which would considerably reduce the
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Course description. This course will provide the basic knowledge of the various materials that are used in the fabrication of commonly used prostheses, as well as in the design and development of new materials for the repair and replacement of failing or failed organs. The focus will be on biomaterials; polymers that are used in medicine. There will be a discussion on the development of new materials that are targeted specifically for regenerative medicine.. ...
Enables readers to take full advantage of the latest advances in biomaterials and their applications. Advanced Biomaterials: Fundamentals, Processing, and Applications reviews the latest biomaterials discoveries, enabling readers to take full advantage of the most recent findings in order to advance the biomaterials research and development. Reflecting the nature of biomaterials research, the book covers a broad range of disciplines, including such emerging topics as nanobiomaterials, interface tissue engineering, the latest manufacturing techniques, and new polymeric materials. The book, a contributed work, features a team of renowned scientists, engineers, and clinicians from around the world whose expertise spans the many disciplines needed for successful biomaterials development. All readers will gain an improved understanding of the full range of disciplines and design methodologies that are used to develop biomaterials with the physical and biological properties needed for specific ...
Cell-based therapies are growing as a good approach for different diseases. some book cell surface area anatomist and intracellular nanoconjugation strategies are described. Their potential applications are also talked about, including cell safety, cell labeling, targeted regulation and delivery. It can be thought that these book cell-material things can possess great possibilities for biomedical applications. behaviors of cells possess typically been controlled by injecting exogenous adjuvant medicines concurrently with donor cells [11C13], or tailoring the hereditary encoding to alter the natural properties of the cells [14, 15]. The 1st strategy can be limited by the specific behaviors between restorative cells and adjuvant medicines. Many restorative cells possess organic tropisms to particular cells mediated by particular cytokines created in connected microenvironments [7, 8, 16], while molecular adjuvant medicines possess poor focusing on real estate, show no picky biodistribution, and ...
A method of producing a brush for carrying out surface roughing, polishing, lapping, and smoothing operations comprises a first molding operation of one or more mixes including one or more moldable synthetic materials so as to obtain a base portion (6; 160) and a plurality of bristle members (3; 130, 130a, 130b) projecting from a surface (6a; 160a) of the base portion (6; 160) and including at least one abrasive material. The invention also relates to a brush tool of synthetic material including one or more abrasive grain material in the bristle members (3; 130, 130a, 130b) thereof.
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Characterization of Biomaterials (Woodhead Publishing Series in Biomaterials). Biomaterials and scientific units has to be carefully demonstrated within the laboratory sooner than they are often implanted. checking out calls for the best analytical strategies. Characterization of biomaterials stories the most recent equipment for reading the constitution, homes and behavior of biomaterials. starting with an advent to microscopy thoughts for reading the part nature and morphology of biomaterials, Characterization of biomaterials is going directly to talk about scattering thoughts for structural research, quantitative assays for measuring phone adhesion, motility and differentiation, and the review of mobile infiltration and tissue formation utilizing bioreactors. ...
Here are a couple of mid-week life sciences financings. ---Watertown, MA-based Arsenal Medical, a developer of biomaterial-based scaffold and drug delivery
This project focuses on developing and applying computational approaches to study GAG-protein interactions in order to better understand their requirements for affinity and specificity and to characterize the molecular mechanisms responsible for their function. We use the knowledge acquired to stablish structure-function relationships theoretical models and to propose rationale for customized specificity in order to guide the engineering of new biomaterials and thus be able to tune the interplay GAG/target-protein/receptor for functional purposes.. A great part of our work consists on applying computational tools in cooperation with experimentalists to investigate the interaction of a variety of GAGs with extracellular matrix target protein systems. We establish theoretical models for the analysis of the conformational properties of GAG derivatives, the location of their binding sites, the characterization of relevant target protein residues, as well as the interplay with their receptors. This ...
(1999). cрme excellent biocompatibility, nontoxicity, high drug-loading capacity, long circulation time in the bloodstream, and high biodegradability (Allen, Yu, Maysinger, Eisenberg, 1998). The majority of genes upregulated by MWCNTs were involved in the dтes immune pathway. 32 These results were not consistent, however, with a recent study by Guillon in al.
H. - W. Jun and West, J. L., "Development of a YIGSR-peptide-modified polyurethaneurea to enhance endothelialization", Journal of Biomaterials Science, Polymer Edition, vol. 15, no. 1, pp. 73 - 94, 2004. ...
On this page you will find news and information from Mid Sweden University, collected under the tag BIOMATERIALS. This page is created based on the tag you clicked to get here.. There are 22 English pages and 11 Swedish pages that are tagged with BIOMATERIALS. The content may vary depending on language.. ...
The Microfiber Variety Pack is your answer! Each three-piece set comes with compact versions of our top-selling microfiber, including the ultra-soft Body Cloth, which is great for cleaning hands and faces; the Window Cloth, which is perfect for car windows and mirrors; plus an EnviroCloth®, which covers just about anything else- so youre literally good to go!. All Norwex Microfiber products carry a two-year warranty. Please visit www.norwex.com for complete details. *Contains BacLock, an antibacterial agent for self-cleansing purposes only. The agent is solely designed to inhibit bacterial odor, mold and/or mildew growth within the product ...
... Supplier/Manufacturer From China.,Micromill are Microfiber Cleaning Cloth manufacturer from china factory,We also can produce the Microfiber Cleaning Cloth according to the clients requirement. We are always try our best to become the good Microfiber Cleaning Cloth manufacturers/suppliers and welcome the customer from all over the world to contact with us.
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The advent of green technology has flourished biomolecule applications in medical, pharmaceutical and food products. Unlike synthetic materials, gelatin-polysaccharide matrixes are generally recognized as safe (GRAS). Gelatin-polysaccharide complexes are currently being utilized for the development of nano- and micro-particles, hydrogel, aerogel and films. Gelatin-polysaccharide based materials have offered improved characteristics depending on the type and concentration of polysaccharide and crosslinking agent. Gelatin-polysaccharide based materials function as bioactive compounds entrapment and encapsulation and anti-bacteria. This review provides concise information on the theory and technological applications of gelatin-polysaccharides based materials.. ...
Enzymotec develops and manufactures nutritional ingredients and medical foods, driven by a deep core of cutting-edge, proprietary technologies. Since its establishment in 1998, the company has enjoyed accelerated growth, generating impressive sales worldwide, by launching a diverse portfolio of innovative products ...
The outside of a cast can be made of plaster or fiberglass. Cotton and synthetic materials line the inside of the cast to make it soft and to provide padding around bony areas, such as the wrist or elbow.
Root: Kevlar is a synthetic material thats 5 times stronger than steel. They say its bullet resistant. So Kevlar + Armour is an impenetrable shield ...
Tissue Engineered Collagen Biomaterials Market (Source - Bovine, Porcine, Marine, and Chicken; Application - Orthopedic and Wound Care) - Global Industry Analysis, Size, Share, Growth, Trends, and Forecast 2017 - 2025
The report analyzes and presents an overview on Global Orthopedic Biomaterials Market - By Type, By Sub-Type, By Application: Analysis By Region, By...
Biomaterial Coating Market report categorizes global market by type of material, application, and geography - Global Industry Insights, Trends, Outlook, and Opportunity Analysis, 2018-2026
Receive additional information and learn how to start developing a engineered material solution for your applications unique requirements using a specialty compound from RTP Company.. Contact RTP ...
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I am looking for a bio-compatible material to block light across the whole spectrum. Setting up an experiment that requires to block all light on biological tis
I have been an implantologist for 25 years and have always tried to use biomaterials to meet my needs. Almost 10 years ago I had my first contact with adbone®TCP and adbone®BCP and since then, given the excellent results achieved in biocompatibility, neovascularization, density and resorption of grafts, ease of handling and affordable cost, I started using Medbones products exclusively. I produced a work with histological comparative sections of Bio-Oss and Adbone®TCP grafts, which was published in Quintessence International (01/2018), and the results unequivocally demonstrate the advantages of Adbone®TCP. Medbone has always met my best expectations ...
1. Open Unicorn 2. Go to the System Control Panel and choose Manual 3. Select pump option by setting flow, gradient, buffer, pump wash. 4. Select the flow path by setting the injection valve and pump inlet. 5. Choose from the Frac option of how the fraction is desired to be distributed. 6. Press Execute after all desired parameters have been set. ...
The requirements for an elastomer material are: *The material should have low stiffness (especially when large strains are ... They can be biocompatible.[3][4] Remaining issues include drying of the hydrogels, ionic build-up, hysteresis, and electrical ... Materials[edit]. Films of carbon powder or grease loaded with carbon black were early choices as electrodes for the DEAs. Such ... Dielectric elastomers (DEs) are smart material systems that produce large strains. They belong to the group of electroactive ...
Jan W. Gooch (23 August 2010). Biocompatible Polymeric Materials and Tourniquets for Wounds. Springer. p. 35. ISBN 978-1-4419- ... The adult-sized diaper with extra absorption material is used because astronauts cannot remove their space suits during long ...
Topical coverage includes biomedical and biocompatible materials. Formats of publication include original research reports, ... Materials Society. The journal was established in January 2005. The editor-in-chief is W.R. Wagner (University of Pittsburgh). ... Chemical Abstracts Service EMBASE EMBiology Elsevier BIOBASE MEDLINE/PubMed Materials Science Citation Index Science Citation ...
... and Biocompatible Graphene Paper". Advanced Materials. 20: 3557-3561. CS1 maint: Multiple names: authors list (link) Baughman, ... and Biocompatible Graphene Paper" - Advanced Materials (2008) "Carbon Nanotube Actuators" - Science (1999) "ARC Centre of ... "Materials Node , www.anff.org.au". www.anff.org.au. Retrieved 2017-05-19. "University of Wollongong, Australia". www.uow.edu.au ... He has developed new approaches to fabrication that allow material properties discovered in the nano world to be translated ...
Hench was intrigued and began to investigate materials that would be biocompatible. The final product was a new material which ... Bioceramics and bioglasses are ceramic materials that are biocompatible. Bioceramics are an important subset of biomaterials. ... The ceramic materials used are not the same as porcelain type ceramic materials. Rather, bioceramics are closely related to ... Alternatively, the bioceramic materials can be doped with β-emitting materials and implanted into the cancerous area. Other ...
"AMSilk Develops Spidersilk, a Biocompatible Material for Use in Cosmetic Formulations". cosmetics.specialchem.com. Retrieved ... "AMSilk Develops Spidersilk, a Biocompatible Material for Use in Cosmetic Formulations". cosmetics.specialchem.com. Retrieved ... The polymers are biocompatible and breathable. The company was founded in 2008 and has its headquarters at the IZB in Planegg ... AMSilk is an industrial biotechnology company with a proprietary production process for their silk materials. " ...
The first requirement is that the material must be biocompatible; it means that the organism should not treat it as a foreign ... Secondly, the material should be biodegradable (for in-graft only); the material should harmlessly degrade or dissolve in the ... These force-bearing materials require high elastic modulus with low deflection. As the elastic modulus of material increases ... Thirdly, the material should be mechanically sound; for the replacement of load bearing structures, the material should possess ...
This material is formed into sheets and loaded in tension perpendicular to the desired bending crease. The material is then ... This resin adds to the small group of 3D-printable resins and is one of the few that are biocompatible. A laser 3D-printed ... Electrical and Magnetic Smart Materials[edit]. The electrical responsive materials that exist today change their size and shape ... It is very likely that 4D-printed materials will be able to repair themselves after failure. These materials will be able to ...
Biocompatible and environmentally friendly natural compounds have the potential to provide materials with photoresistant and ... Validated use of these materials and products awaits further assessment.[15] Related products[edit]. Main articles: ... 2015). "Exploiting Mycosporines as Natural Molecular Sunscreens for the Fabrication of UV-Absorbing Green Materials". ACS Appl ... Validated use of these materials and products awaits further assessment.[15] ...
... the materials selected must be factored for pH response when selecting the scaffolding material. The swelling and bioadhesion ... Collagen hydrogels would be nontoxic and biocompatible. Hybrid Hydrogels: Hybrid hydrogels combine synthetic and biological ... Self-healing refers to the spontaneous formation of new bonds when old bonds are broken within a material. The structure of the ... The surface tension (γ) of a material is directly related to its intramolecular and intermolecular forces. The stronger the ...
The material is highly biocompatible and has properties suitable for use in orthopedic implants. SmartToe is the first hammer ...
C. Vitale-Brovarone, et al., 2008, "Biocompatible Glass-Ceramic Materials for Bone Substitution," Journal of Materials Science ... L. Lee and S. Quirke 2000, "Painting Materials," In: P.T. Nicholson and I. Shaw (eds.), Ancient Egyptian Materials and ... and Tite to deduce the connection among the three materials. The cakes were produced by heating the raw materials for frit, ... Another type of frit can be used as a biomaterial, which is a material made to become a part of, or to come into intimate ...
"Biocompatible Material is Tougher than Cartilage". Today's Medical Developments. September 13, 2012 "Scientists create neural ... soft materials, active materials, and lithium-ion batteries. With Teng Li, Suo co-founded iMechanica, the web of mechanics and ... Zhigang Suo (born June 15, 1963) is Allen E. and Marilyn M. Puckett Professor of Mechanics and Materials in the Harvard School ... His research centers on the mechanical behavior of materials and structures. Suo received a B.S. degree in solid mechanics from ...
Biocompatible material Biomaterial Medical device ISO 10993 Medical implant Medical grade silicone Bovine submaxillary mucin ... Much of the pre-clinical testing of the materials is not conducted on the devices but rather the material itself. But at some ... is biocompatible. These tests do not determine the biocompatibility of a material, but they constitute an important step ... All these definitions deal with materials and not with devices. This is a drawback since many medical devices are made of more ...
"Use of spider silk fibres as an innovative material in a biocompatible artificial nerve conduit". J. Cell. Mol. Med. 10(3): pp ...
These materials can be made in the form of flat membranes or as spherical sacs by dropping one solution into the other. These ... They can incorporate bioactive peptide amphiphiles, encapsulate cells and biomolecules, and are biocompatible and biodegradable ... Biomimetic material Hamley IW. "Self-Assembly of Amphiphilic Peptides." doi:10.1039/C0SM01218A Dehsorkhi A, Castelletto V, ... These molecules and the materials made from them have been shown to be effective in promoting cell adhesion, wound healing, ...
"Use of spider silk fibres as an innovative material in a biocompatible artificial nerve conduit". Journal of cellular and ... The tensile strength listed for steel might be slightly higher-e.g. 1.65 GPa, but spider silk is a much less dense material, so ... "Overview of materials for AISI 4000 Series Steel". www.matweb.com. Retrieved 18 August 2010. "DuPont Kevlar 49 Aramid Fiber". ... Griffiths, J. R.; Salanitri, V. R. (1980). "The strength of spider silk". Journal of Materials Science. 15 (2): 491-6. Bibcode: ...
Bulk eroding polymers take in water like a sponge (throughout the material) and erode inside and on the surface of the polymer ... Owing to their safe degradation products, polyanhydrides are considered to be biocompatible. The characteristic anhydride bonds ... Surface eroding polymers do not allow water to penetrate into the material. They erode layer by layer, like a lollipop. The ... Polyanhydrides have been investigated as an important material for the short-term release of drugs or bioactive agents. The ...
They have high potential in targeted drug delivery, tissue engineering and synthesis of bio-compatible materials. The first ... Engineered Carbohydrate-Based Materials for Biomedical Applications. 2011: John Wiley & Sons, Inc. 1-118. V. Horoejsí, O. ...
The term may refer to specific properties of a material without specifying where or how the material is to be used. For example ... A biomaterial that is biocompatible or suitable for one application may not be biocompatible in another. IUPAC definition ... Perspectives on de novo biomimetic materials". Progress in Materials Science. 54 (8): 1059-1100. doi:10.1016/j.pmatsci.2009.05. ... "Deformation and failure of protein materials in physiologically extreme conditions and disease". Nature Materials. 8 (3): 175- ...
His lab focuses on the synthesis of materials for catalysis and biocompatible materials for drug delivery. He did his doctoral ...
"A soluble biocompatible guanidine-containing polyamidoamine as promoter of primary brain cell adhesion andin vitrocell ... culturing". Science and Technology of Advanced Materials. 15 (4): 045007. doi:10.1088/1468-6996/15/4/045007. PMID 27877708. ...
... is biocompatible and non-toxic, making it a good candidate material for medical applications. So far it has ... G. Helenius, et al., "In vivo biocompatibility of bacterial cellulose," Journal of Biomedical Material Research: Part A, vol. ... Journal of Material Science, vol. 25, no. 6, pp. 2997-3001. D. C. Johnson, A. N. Neogi, and H. A. Leblanc, (Mar. 10, 1988) " ...
RGD is also a universally used tool in the construction of multifunctional "smart" materials, such as tumor-targeted ... Meyers, Steven R.; Grinstaff, Mark W. (2012-03-14). "Biocompatible and bioactive surface modifications for prolonged in vivo ...
Hemasorb Resorbable Hemostatic Bone Putty is a sterile, soft, moldable, biocompatible, absorbable material of putty-like ... The material was useful for bleeding control in cut or damaged bone where it could be pressed into bleeding pores and channels ... The material is a mixture of calcium stearate, Vitamin E acetate, and liquid surfactant. It is virtually odorless, off-white in ... This material soon became the standard of care for bleeding control in bone for general orthopedics, craniomaxillofacial and ...
PAC material is finer material. PAC is made up of crushed or ground carbon particles, 95-100% of which will pass through a ... This is a process by which a porous carbon can be coated with a biocompatible polymer to give a smooth and permeable coat ... US8648217B2, "Modification of carbonaceous materials", issued 2008-08-04 *^ US10000382B2, "Method for carbon materials surface ... Activation/Oxidation: Raw material or carbonized material is exposed to oxidizing atmospheres (oxygen or steam) at temperatures ...
biocompatible materials market forecastsbiocompatible materials market valuebiocompatible materials market statusbiocompatible ... 2.1 Biocompatible Materials Raw Material & Equipments Supplier and Price Analysis. 2.3 Biocompatible Materials Labor & Other ... 3.4 2015 Global Key Manufacturers Biocompatible Materials Raw Materials Sources Analysis. Chapter Four Biocompatible Materials ... Chapter Five Biocompatible Materials Sales and Sales Revenue by Regions. 5.1 2010-2015 Biocompatible Materials Sales by Regions ...
... surface of the substrate material comprises cross-linking a second biocompatible material to the first biocompatible material ... used in mammals may further comprise a second biocompatible material cross-linked to the grafted first biocompatible material ... biocompatible surface thereon comprises covalently grafting at least a first biocompatible material, preferably having pendant ... comprises a polymer core and at least a first biocompatible material, preferably having pendant terminal carboxylic acid or ...
IonBond LLC, Rockaway, N.J., introduces the Medthin line of biocompatible coatings, a family... , Article from Advanced ... "Biocompatible coatings.(PRODUCTS & SERVICES)." Advanced Materials & Processes. ASM International. 2006. HighBeam Research. 17 ... "Biocompatible coatings.(PRODUCTS & SERVICES)." Advanced Materials & Processes. 2006. HighBeam Research. (February 17, 2018). ... "Biocompatible coatings.(PRODUCTS & SERVICES)." Advanced Materials & Processes. ASM International. 2006. Retrieved February 17, ...
... Materials Science: Attaching ultraviolet-absorbing compounds produced by ... biocompatible sunscreens (ACS Appl. Mater. Interfaces 2015, DOI: 10.1021/acsami.5b04064). The photostable materials could be ... The new materials absorbed UV-A and UV-B light as effectively as the free mycosporines. The molar absorptivities of the three ... The researchers then cast films from the new materials and found that the films were stable after exposure to 12 hours of UV ...
New aryl acrylic core polymers processed with a thin layer of biocompatible hydrophilic polymers on the surface for the medical ... acrylic materials suitable for use as an IOL material. The IOLs made of these acrylic materials can be rolled or folded for ... New ophthalmic lens materials with high refractive index and biocompatible surface. US 20050085908 A1 ... These materials of the present invention are Improved soft, foldable acrylic lens materials but which are also useful as other ...
Be the first to comment on "Biocompatible material has deep potential". Leave a comment Cancel reply. Email address is optional ... Scientists Create New Electronic Material with Potential for Flexible Light-Based Electronics ... Scientists Mimic Neural Tissue in Next-Generation Soft Materials * Whitehead Institute Biologists Uncover a Blueprint for ... March 16, 2018 , Scientists Mimic Neural Tissue in Next-Generation Soft Materials ...
The resulted biocompatible polymer/QDs hybrid materials show successful applications in the fields of bioimaging and biosensing ... Polymers are widely used to cover and coat QDs for fabricating biocompatible QDs. Such hybrid materials can provide solubility ... While considerable progress has been made in the design of biocompatible polymer/QDs materials, the research challenges and ... This review provides an overview of the recent development of methods for generating biocompatible polymer/QDs hybrid materials ...
4.4 billion US biocompatible materials industry. It presents historical demand data (2003, 2008 and 2013) and forecasts (2018 ... Ceramic materials will grow the fastest based on improved nanotechnology compounds for orthopedic implants, spinal fixation ... dental products and materials, drug delivery products, electromedical equipment, diagnostic products, ophthalmic goods).The ... US demand for biocompatible materials is forecast to increase 4.9 percent annually to $5.6 billion in 2018. ...
Hirano S., Seino H., Akiyama Y., Nonaka I. (1990) Chitosan: A Biocompatible Material for Oral and Intravenous Administrations. ...
Reproduced material should be attributed as follows: * For reproduction of material from NJC: Reproduced from Ref. XX with ... Reproduced material should be attributed as follows: * For reproduction of material from NJC: [Original citation] - Reproduced ... A biocompatible artificial tendril with a spontaneous 3D Janus multi-helix-perversion configuration Y. Su, M. B. Taskin, M. ... For reproduction of material from all other RSC journals and books: Reproduced from Ref. XX with permission from The Royal ...
... ... Thixotropic material that will flow on demand. *Natural-like esthetics by chameleon-effect, high-color stability and high-gloss ... Admira® Flow is highly biocompatible flowable ormocer composite in unit dose caps or syringes used for Repair of fillings, ...
A new dental reconstruction material developed in Sweden offers unprecedented improvements over existing acrylate-based fillers ... Super-strong, bio-compatible material may make broken fillings a thing of the past. November 6, 2018, KTH Royal Institute of ... The Dawn of Thiol-Yne Triazine Triones Thermosets as a New Material Platform Suited for Hard Tissue Repair, Advanced Materials ... Scientists develop material that could regenerate dental enamel. June 1, 2018 Researchers at Queen Mary University of London ...
... highly biocompatible, water soluble, BSA capped pre-nucleation CaCO3 nanoclusters (FCPN) (∼1.3 nm) are developed using a facile ... Reproduced material should be attributed as follows: * For reproduction of material from NJC: Reproduced from Ref. XX with ... Reproduced material should be attributed as follows: * For reproduction of material from NJC: [Original citation] - Reproduced ... For reproduction of material from all other RSC journals and books: Reproduced from Ref. XX with permission from The Royal ...
... biocompatible and superparamagnetic gadolinium-doped iron oxide nanoclusters (GdIO NCs) via a one-pot reaction by thermal ... Reproduced material should be attributed as follows: * For reproduction of material from NJC: Reproduced from Ref. XX with ... Reproduced material should be attributed as follows: * For reproduction of material from NJC: [Original citation] - Reproduced ... For reproduction of material from all other RSC journals and books: Reproduced from Ref. XX with permission from The Royal ...
Quantum Materials Corp and Nanoaxis Announce Technology Alliance: Biocompatible quantum dots to enable industrial scale ... Home , Press , Quantum Materials Corp and Nanoaxis Announce Technology Alliance: Biocompatible quantum dots to enable ... About Quantum Materials Corporation. QUANTUM MATERIALS CORPORATION has a steadfast vision that advanced technology is the ... Quantum Materials Corporation (www.qdotss.com) (Pink Sheets: QTMM) Quantum Materials Corp. and Nanoaxis, LLC announce the ...
Generation of biocompatible functional material by microfluidic manipulation of multiphase flows at University of Birmingham, ... Generation of biocompatible functional material by microfluidic manipulation of multiphase flows University of Birmingham. , ... For instance, biocompatible materials with mechanical properties gradients are of high importance in the study of tissue ... Generation of biocompatible functional material by microfluidic manipulation of multiphase flows. University of Birmingham ...
For instance, the material may persist until its drug payload is delivered or the material may offer mechanical support to ... Material nitrosation is typically accomplished by exposing a solid thiol-containing material to nitrous acid46-51. However, the ... The various nitrosating conditions allow for the material to be selectively loaded, subject to the material requirements and ... To overcome the current constraints associated with such existing passive biomedical materials, next generation materials ...
... them acrylic monomers contain largest number of products and are often utilized for biomaterials or biocompatible materials ... Zwitterionic polymers synthesized from its zwitterionic monomers are expected to be applied to surface coating materials in ... as coating materials for nanoparticles with prolonged blood circulation,12) and as hydrogels providing sustained release of the ... therapeutic materials.13) Application for assays or diagnosis are also expected, and noise reduction of a glucose sensor by ...
This project, undertaken to perform Study on Biocompatible Adhesive Restorative Materials, was funded in part by a 3-year ... With an eye to developing new types of biocompatible and adhesive cavity liners and restorative materials, extensive research ... Publications] Y.Usami: Pulpal response to a new light-activated Adhesive filling material (in planning).. *. Description. 「研究 ... Publications] Y.Usami: Pulpal response to a new light-activated Adhesive filling material (in planning).. *. Description. 「研究 ...
The present invention also provides a graft composition comprising a biocompatible material that includes the decellularized ... To achieve the above purpose, the present invention provides a method for producing a decellularized material for ... The purpose of the present invention is to provide a method for producing a decellularized material for transplantation that ... EN) METHOD FOR PRODUCING DECELLULARIZED MATERIAL FOR TRANSPLANTATION AND GRAFT COMPOSITION COMPRISING BIOCOMPATIBLE MATERIAL ...
Biocompatible and Biodegradable Ultrafine Fibrillar Scaffold Materials for Tissue Engineering by Facile Grafting of l-Lactide ... Biocompatible and Biodegradable Ultrafine Fibrillar Scaffold Materials for Tissue Engineering by Facile Grafting of l-Lactide ... Tissue Engineering ring opening polymerization Biodegradable Ultrafine Fibrillar Scaffold Materials ChitosanA chitosan ... This allows the manipulation of the biodegradation rate and hydrophilicity of the tissue engineering scaffold material. This ...
One of the applications of this material is to be used as anode in a microbial fuel cell. In this process, the fibers are ... The objective of this paper is to use a microfluidic platform for fabricating biocompatible materials. ... The objective of this paper is to use a microfluidic platform for fabricating biocompatible materials. One of the applications ... "Microfabrication of Highly Biocompatible Materials for Energy Applications" (2013). Mechanical Engineering Conference ...
Preparation of Novel Biocompatible polymeric Additives and Modification of Biomedical Materials Using the Additives. Research ... Division of Organic Materials, Associate Professor, 医用器材研究所・有機材料部門, 助教授 (90193341). ...
... or from materials that have been proved to be at least biocompatible. Here we report the combination of biocompatible and ... In a second example, complete bio-materials based OFETs are introduced based on glucose, lactose, sucrose, for the gate ... An ideal solution for the production of such devices involves the fabrication of the electronics either from natural materials ... Organic electronics has the potential to develop electronic products that are biocompatible, bioresorbable, biodegradable or ...
Biocompatible SPME devices employ C18 bonded porous silica sorbent particles, in a binder which resists fouling by biological ... Reproduction of any materials from the site is strictly forbidden without permission. Sigma-Aldrich Products are sold ... New Biocompatible SPME Devices for Bioanalysis and in vivo Sampling (45 μm thickness, 15 mm length of the coating, Cat. No. ... Bioanalytical Microsampling using Biocompatible SPME and Benefits over Dried Blood Spots. *Two Distinct Sample Prep Approaches ...
  • 4 . The imagable system of claim 1 wherein the bioabsorbable polymeric material is selected from the group consisting of polyglycolic acid, polylactic acid, polycaprolactone and copolymers and blends thereof. (google.com.au)
  • The biomaterial term is used for materials that can be used in biomedical and clinical applications. (wikipedia.org)
  • It is clinically important because it indicates the selected biomaterial has similar deformable properties with the material it is going to replace. (wikipedia.org)
  • However, according to Williams' definition, this does not make any sense because biocompatibility is contextual, i.e. much more than just the material itself will determine the clinical outcome of the medical device of which the biomaterial is a part. (wikipedia.org)
  • Additionally, care should be exercised in defining a biomaterial as biocompatible, since it is application-specific. (wikipedia.org)
  • A biomaterial that is biocompatible or suitable for one application may not be biocompatible in another. (wikipedia.org)
  • A biomaterial may also be an autograft, allograft or xenograft used as a transplant material. (wikipedia.org)
  • Perhaps the most widely investigated material in this category, magnesium was originally investigated as a potential biomaterial in 1878 when it was used by physician Edward C. Huse in wire form as a ligature to stop bleeding. (wikipedia.org)
  • citation needed] To date little work has been published on the use of a primarily zinc-based biomaterial, with corrosion rates found to be very low and zinc within a tolerable toxicity range Although strictly speaking a side-category, a related, relatively new area of interest has been the investigation of bioabsorbable metallic glass, with a group at UNSW currently investigating these novel materials. (wikipedia.org)
  • The aim of this work was to investigate the phase behaviour and the structure of the n-hexane/water emulsions based on a nonionic, nontoxic and biocompatible surfactant, Tween 80. (hindawi.com)
  • Roman Saliwanchik [5 ABSTRACT 10 Claims, No Drawings 1 METHOD FOR BINDING ANTITHROMBOTIC OR ANTICLOTTING SUBSTANCES TO A SUSCEPTIBLE MATERIAL INVOLVING THE USE OF AN AROMATIC SULFONYL NITRENE BACKGROUND OF THE INVENTION Technological advances in the last few decades have brought the mammalian body in intimate contact with a variety of devices incorporating foreign materials which were not present in the evolution of theirsysterns. (google.com)
  • A prosthesis material useful for artificial bones or teeth is provided in the form of a heat-consolidated body composed essentially of a dense structurally integrated mixture of discrete microcrystals of a calcium phosphate compound together with discrete microcrystals of a refractory compound, such. (google.ca)
  • Artificial skin produced by this process is more stable toward long-term storage than similar materials prepared using other methods of crosslinking. (google.com)
  • The above artificial materials are used in medicine because they are biocompatible and have a low incidence of causing problems inside the human body. (wikipedia.org)
  • Usually, these implants are covered with a material that permits fixation of the extraocular recti muscles, such as donor sclera or polyester gauze which improves implant motility, but does not allow for direct mechanical coupling between the implant and the artificial eye. (wikipedia.org)
  • Prosthodontics (dental prosthetics) Crown (caps) - artificial covering of a tooth made from a variety of biocompatible materials, including CMC/PMC (ceramic/porcelain metal composite), gold or a tin/aluminum mixture. (wikipedia.org)
  • Merrill's work on highly crosslinked polyethylene (1990s with W Harris) led to the new HDPE materials used in artificial joints now (a $4 billion industry). (wikipedia.org)
  • Our work includes the engineering of diagnostic and therapeutic technologies, orthopaedics and the musculoskeletal system more generally, neuroscience and neurotechnology, machine learning, bioelectronics, cancer research, biocompatible materials, regenerative medicine, cell mechanics and the cardiovascular system and synthetic biology. (imperial.ac.uk)
  • He has explored new synthetic protocols, new analytical methods, to discover new materials tearing down the traditional barriers between Chemistry and other disciplines such as Physics, Biology and Medicine. (wikipedia.org)
  • The development of biologic mesh largely has derived from the need of a biocompatible material that addresses "the problems associated with a permanent synthetic mesh, including chronic inflammation, foreign body reaction, fibrosis, and mesh infection. (wikipedia.org)
  • Although the heart is conceptually a pump, it embodies subtleties that defy straightforward emulation with synthetic materials and power supplies. (wikipedia.org)
  • Ideally such straws should be made of a material that is chemically inert, biocompatible and have physical characteristics that make them resistant to ultra-low temperatures and pressures created by their storage conditions, resulting in the expansion of liquids and liquid nitrogen. (wikipedia.org)
  • One of the applications of this material is to be used as anode in a microbial fuel cell. (iastate.edu)
  • Unique physical and chemical properties make 1D nanomaterials very attractive and their window of applications is broadened by the addition of biocompatible materials. (springer.com)
  • In all cases, when a material has to be used in medical applications, the knowledge of its physical, chemical and biological properties is of fundamental significance, since the direct contact between the biological system and the considered device could generate reactions whose long-term effects must be clearly quantified. (intechopen.com)
  • The present paper is not encyclopaedic, but reports in the first part some current literature data and perspectives about the possibility of use different class of metallic materials for medical applications, while the second part recalls some results of the current research in this field carried out by the authors. (intechopen.com)
  • The book also showcases many topics concerning the fast-developing area of materials for catalysis and their emerging applications. (researchandmarkets.com)
  • The fourth is an expansion or rather more precise version of the first definition noting both that low toxicity and the one should be aware of the different demands between various medical applications of the same material. (wikipedia.org)
  • This, along with the complete biodegradability of the materials, suggests numerous applications in in vitro and in vivo therapies. (wikipedia.org)
  • In recent years, two discoveries have yielded bioactive materials with more advanced structures and potential applications. (wikipedia.org)
  • The low shear forces used in aligning the material permit the encapsulation of living cells inside these aligned gels and suggest several applications in regenerating tissues that rely on cell polarity and alignment for function. (wikipedia.org)
  • citation needed] In the late 1990s, with the huge popularity of surgical rejuvenation and concomitant increase of cosmetic surgery procedures worldwide, more substances, along with biocompatible materials commonly used in other medical applications for years, became available to surgeons for use in augmenting thinning or misshapen lips into more plump and attractive features. (wikipedia.org)
  • Applications of this technology currently range through chemistry, materials science, and the life sciences, and include such work as ultra high density biological nanoarrays, and additive photomask repair. (wikipedia.org)
  • When it is heated into a viscous state by a 3D printer, the material can be shaped into complicated three-dimensional structures. (naturalnews.com)
  • He has developed new approaches to fabrication that allow material properties discovered in the nano world to be translated into micro structures and macro scopic devices. (wikipedia.org)
  • for the replacement of load bearing structures, the material should possess equivalent or greater mechanical stability to ensure high reliability of the graft. (wikipedia.org)
  • His research centers on the mechanical behavior of materials and structures. (wikipedia.org)
  • Suo joined the faculty of the University of California at Santa Barbara, and established a research group studying the mechanics of materials and structures. (wikipedia.org)
  • Nanomechanics of Materials and Structures. (wikipedia.org)
  • Multiscale Deformation and Fracture in Materials and Structures: The James R. Rice 60th Anniversary Volume. (wikipedia.org)
  • Additionally the mechanically interlocked structures can be maintained in slide-ring materials, which are a type supramolecular network synthesized by crosslinking the rings (called figure-of-eight crosslinking) in different polyrotaxanes. (wikipedia.org)
  • For example, biomimetics is a branch of biological engineering which strives to find ways in which the structures and functions of living organisms can be used as models for the design and engineering of materials and machines. (wikipedia.org)
  • In contrast with some other additive manufacturing processes, such as stereolithography (SLA) and fused deposition modeling (FDM), which most often require special support structures to fabricate overhanging designs, SLS does not need a separate feeder for support material because the part being constructed is surrounded by unsintered powder at all times, this allows for the construction of previously impossible geometries. (wikipedia.org)
  • While DNA is the dominant material used, structures incorporating other nucleic acids such as RNA and peptide nucleic acid (PNA) have also been constructed. (wikipedia.org)
  • US demand for biocompatible materials is forecast to increase 4.9 percent annually to $5.6 billion in 2018. (alacrastore.com)
  • heded it since 1982 Laboratory of Biocompatible Materials (bad link, February 14, 2017) is a new and perspective subject. (wikipedia.org)
  • Joint replacements are commonly coated with bioceramic materials to reduce wear and inflammatory response. (wikipedia.org)
  • Below is a list of some of the commonly used root-end filling materials. (wikipedia.org)
  • Composite resin is commonly used as a filling material due to its aesthetic qualities and ability to effectively bond to tooth structure, especially enamel. (wikipedia.org)
  • It is less commonly used as a root-end filling material, as its placement is technique sensitive, particularly to moisture. (wikipedia.org)
  • Commonly described drawbacks include the high cost of the material and its uncertain clinical effectiveness, particularly in regards to the cost. (wikipedia.org)
  • Ethylene vinyl acetate (EVA) is a polyolefin copolymer of ethylene and vinyl acetate that provides durability and flexibility, making it the most commonly used material found in athletic shoe midsoles. (wikipedia.org)
  • Starch is not often used alone as a plastic material because of its brittle nature, but is commonly used as a biodegradation additive. (wikipedia.org)
  • State-of-the-art procedures make use of microsurgical techniques, such as a dental operating microscope, micro instruments, ultrasonic preparation tips and calcium-silicate based filling materials. (wikipedia.org)
  • The pyriform threads polymerise under ambient conditions, become functional immediately, and are usable indefinitely, remaining biodegradable, versatile and compatible with numerous other materials in the environment. (wikipedia.org)
  • Core activities are clothing physiology, personal protective systems, functional fibers and textiles, biocompatible materials, materials and image modeling, and technology risk evaluation. (wikipedia.org)
  • Degradation of the implant means that intervention or secondary surgery will not be necessary to remove the material at the end of its functional life, providing significant savings in both cost and time for the patient and health care system. (wikipedia.org)
  • Advanced Functional Materials: n/a-n/a. doi:10.1002/adfm.201701145. (wikipedia.org)
  • Extracoronal preparations provide a core or base upon which restorative material will be placed to bring the tooth back into a functional and aesthetic structure. (wikipedia.org)
  • Nearly all materials could be seen as hierarchically structured, especially since the changes in spatial scale bring about different mechanisms of deformation and damage. (wikipedia.org)
  • Despite this strong interdependence, the biological effect of curvature has been largely overlooked or underestimated, and consequently it has rarely been considered in the design of new cell-material interfaces. (usda.gov)
  • The first column may include an introduction section flared open to an included larger funnel-like opening or a separate funnel may be used that interfaces with the introduction section to facilitate the introduction of implant material. (google.com)
  • By the above-mentioned studies, it was clarified that the newly designed experimental light-cured adhesive cavity liners and restorative materials showed superior marginal leakage and shear-bond strength comparing with commercial products and that they showed high fluoride release, high fluoride uptake by dentin, the increase of dentin acid resistance and superior biocompatibility on animal experiments. (nii.ac.jp)
  • Dr. Son stands out in biocompatibility testing for dental materials . (4my2th.com)
  • Bioceramics range in biocompatibility from the ceramic oxides, which are inert in the body, to the other extreme of resorbable materials, which are eventually replaced by the body after they have assisted repair. (wikipedia.org)
  • Sometimes one hears of biocompatibility testing that is a large battery of in vitro test that is used in accordance with ISO 10993 (or other similar standards) to determine if a certain material (or rather biomedical product) is biocompatible. (wikipedia.org)
  • IUPAC definition Biocompatibility (biomedical therapy): Ability of a material to perform with an appropriate host response in a specific application.Biocompatibility: Ability to be in contact with a living system without producing an adverse effect. (wikipedia.org)
  • MTA, a refined "Portland cement" - calcium alumino-silicate cement-, was found to have less cytotoxic and better results in biocompatibility and micro-leakage sealing ability, giving it more success over root-end filling materials. (wikipedia.org)
  • The flint glass material which he used, however, was found to be unsuitable because of biocompatibility issues. (wikipedia.org)
  • It will then be possible to grow cells (e.g. neurons, fibroblasts, cancer cells, etc.) on the functionalized material and study their response to a change in mechanical properties of the substrate. (findaphd.com)
  • These materials are robust enough to handle mechanically and a range of mechanical properties can be accessed by altering growth conditions and time. (wikipedia.org)
  • With this specific structure, slide-ring materials can be fabricated highly stretchable engineering materials due to their different mechanical properties. (wikipedia.org)
  • Although engineered biological systems have been used to manipulate information, construct materials, process chemicals, produce energy, provide food, and help maintain or enhance human health and our environment, our ability to quickly and reliably engineer biological systems that behave as expected is at present less well developed than our mastery over mechanical and electrical systems. (wikipedia.org)
  • To understand structure-anisotropy and materials properties relations, one must correlate the measured mechanical properties of anisotropic trabecular specimens with the stereologic descriptions of their architecture. (wikipedia.org)
  • I want to get the latest chemistry news from C&EN in my inbox every week. (acs.org)
  • Applicants should have an Honours degree with a minimum classification of a 2:1 in Chemical Engineering, Material Science, Bioengineering or Chemistry. (findaphd.com)
  • Under the principles of sustainable development and being environmentally friendly, a new field, called green chemistry, has been developed based on waste minimisation, energy efficiency, nonhazardous raw materials, solvents or products, inherently safe chemicals processes, and on renewable feedstocks [ 1 ]. (hindawi.com)
  • He is currently serving as editorial (advisory) board member of Advanced Materials (Wiley-VCH), Chemistry of Materials (ACS), Nanoscale (RSC), Nano Today (Elsevier), and Small (Wiley-VCH). (wikipedia.org)
  • According to the 2005-2008 strategic plan, the Humanoid Robotics program had a strong interdisciplinary character, merging human and humanoid technologies through the development of 3 technology platforms: Robotics, Neuroscience and Drug Discovery and Development (D3), supported by a few facilities for nano-biotechnologies (such as material science, nanofabrication, chemistry and biochemistry, electron microscopy laboratories etc. (wikipedia.org)
  • Materials Chemistry and Physics. (wikipedia.org)
  • Metallogels are one-dimensional nanostructured materials, which constitute a growing class in the Supramolecular chemistry field. (wikipedia.org)
  • Septodont acquired 2 companies in Brazil, first TDV in 2014 for restorative material, and DLA in 2016 for injectable anesthetics. (wikipedia.org)
  • There were several different materials such as amalgam, reinforced zinc oxide eugenol cements (interim restorative material - IRM), super ethoxy benzonic acid [EBA], glass ionomer cement and composite resin for root-end filling after apicoectomy. (wikipedia.org)
  • Restoring a tooth to good form and function requires two steps: (1) preparing the tooth for placement of restorative material or materials, and (2) placement of these materials. (wikipedia.org)
  • Intracoronal preparations are those which serve to hold restorative material within the confines of the structure of the crown of a tooth. (wikipedia.org)
  • The objective of this paper is to use a microfluidic platform for fabricating biocompatible materials. (iastate.edu)
  • This relates to an improved delivery system for accurately loading and controlling the delivery of flowable material to a patient. (google.com)
  • Composite tooth filling material is used as safe alternative to amalgam fillings. (4my2th.com)
  • Swiss Federal Laboratories for Materials Science and Technology (EMPA) researcher Michael Hausmann and his teammates are examining the unique properties of the nanocellulose composite hydrogels. (naturalnews.com)
  • While unlikely to be relevant in nature, dragline silks can hold their strength below −40 °C (−40 °F) and up to 220 °C (428 °F). As occurs in many materials, spider silk fibres undergo a glass transition. (wikipedia.org)
  • The reason why this works is that we have elevated the number of chemical crosslinks in the materials to such level that the properties we receive are extraordinary," he says. (phys.org)
  • Personally, I would rather have these materials as dental filler than existing acrylate based one, known for their allergenic properties and questionable compositions," he says. (phys.org)
  • By carefully choosing and controlling the components and the conditions under which the material is realized, we will manipulate its final properties. (findaphd.com)
  • Hardness is one of the most important parameters for comparing properties of materials. (wikipedia.org)
  • Selective laser melting (SLM) uses a comparable concept, but in SLM the material is fully melted rather than sintered, allowing different properties (crystal structure, porosity, and so on). (wikipedia.org)
  • ICI had developed the material to pilot plant stage in the 1980s, but interest faded when it became clear that the cost of material was too high, and its properties could not match those of polypropylene. (wikipedia.org)