• We reported on a short peptide-taurine conjugate that could adopt β-sheet conformation and form hydrogels triggered by Ba 2+ , which might be applied for the removal of Ba + from water with high Ba 2+ content. (rsc.org)
  • Methacrylate chondroitin sulphate (MCS) modified with collagen integrin peptides RGD, GLOGEN, and GVOGEA was blended with A-PTMC-PEG-PTMC-A to form hydrogels for ASC encapsulation. (queensu.ca)
  • Certain nano-clay particles are also able to form hydrogels by forming physical interactions with each other to create a structure that locks in water. (ukri.org)
  • Improving CL and hand hygiene, avoiding CLs contamination with water and use of effective CL disinfection solutions, or daily disposable CLs, will reduce the incidence of AK. (bmj.com)
  • Eyexpert Vibe is the 1st and only Silicone Hydrogel daily disposable with Smart Touch technology, an exciting new addition to the Eyexpert family of lenses. (visionexpress.com)
  • Winner of the Contact Lens Product of the Year at the Optician Awards, clariti 1 day toric is the only silicone hydrogel, daily disposable contact lens. (cimlainfo.ru)
  • Due to the polymeric domains created by crosslinking in the gel microstructure, hydrogels are not homogenous within the selected solvent system. (wikipedia.org)
  • Among different types of scaffolds, polymeric hydrogel scaffolds have received considerable attention because of their biocompatibility and structural similarity to native tissues. (mdpi.com)
  • Polymer/clay or polymer/zeolite hybrid composite polymeric systems have received great attention because of their relatively low production cost and high adsorption capacity for water, some dyes and metal. (scirp.org)
  • In these efforts, hydrogels - three-dimensional cross-linked polymeric networks - are among the most promising nature-derived materials applied in recent technologies for biomedical engineering, biotechnology, packaging, pharmaceutical science and agriculture. (materialstoday.com)
  • Recent developments in tough hydrogels for biomedical applications. (nature.com)
  • Tough hydrogels derive their high toughness through dissipation [4-6]. (imechanica.org)
  • Interests in the fracture of soft materials were also driven by the invention of pressure sensitive adhesives, and were recently renewed due to the developments of tough hydrogels [2-4] and elastomers [5]. (imechanica.org)
  • In this report, protein repelling silicone hydrogels with improved hydrophilicity were prepared by photo-polymerization of silicone-containing monomer and glycidyl methacrylate followed by grafting zwitterionic amino acids. (polymer.cn)
  • The grafted silicone hydrogels possessed excellent hydrophilic surfaces due to the enrichment of amino acids, which was confirmed by attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, contact angle, and equilibrium water content measurements. (polymer.cn)
  • Remarkable resistance to bovine serum albumin and lysozyme fouling was observed for the silicone hydrogels immobilized with neutrally charged amino acids because of the formation of zwitterionic surfaces with pairs of protonated secondary ammonium cations and deprotonated carboxyl anions. (polymer.cn)
  • Meanwhile, the silicone hydrogels grafted with positively or negatively charged amino acids were able to repulse same charged protein with reduced deposition and attract oppositely charged protein with increased adsorption. (polymer.cn)
  • Preliminary cytotoxicity test indicated that the zwitterionic silicone hydrogels were non-cytotoxic. (polymer.cn)
  • WebDescription: MyDay Toric 1 day disposable contact lenses manufactured by CooperVision utilize 3rd generation silicone hydrogel material for all-day comfort. (cimlainfo.ru)
  • Bernhard V. K. J. Schmidt, Max-Planck-Institute of Colloids and Interfaces, Potsdam, Germany, and colleagues have used g-CN as both photoinitiator and reinforcing material in hydrogel synthesis. (chemistryviews.org)
  • The swelling factor of the material is reduced from 2 for the non-reinforced hydrogel to 1.2−1.7 for the g-CN-derived material. (chemistryviews.org)
  • It also attracts and binds water to the lens material so that they stay hydrated, even after 12 hours of wear. (justlenses.com)
  • Is Proclear EP a silicone hydrogel material? (justlenses.com)
  • No, Proclear EP is made from a hydrogel material. (justlenses.com)
  • As the material absorbs water vapor, it can swell to make room for more moisture. (sciencedaily.com)
  • The transparent, rubbery material is made from hydrogel, a naturally absorbent material that is also used in disposable diapers. (sciencedaily.com)
  • If it can be made quickly, and at large scale, the superabsorbent gel could be used as a passive water harvester, particularly in the desert and drought-prone regions, where the material could continuously absorb vapor, that could then be condensed into drinking water. (sciencedaily.com)
  • Hydrogels have been used for years as absorbent material in diapers because they can swell and soak up a large amount of water when it comes in contact with the material. (sciencedaily.com)
  • So, researchers have attempted to infuse the salt into hydrogel -- producing a material that could both hold in moisture and swell to accommodate more water. (sciencedaily.com)
  • Silicone Hydrogel material makes the high comfortability and keeps the watery feel by keeping the eyes moisturized. (fantasy-icon.com)
  • Your eyes will have a healthy sparkle when you wear these contact lenses, as their silicone hydrogel material ensures that sufficient oxygen reaches your eyes. (visionexpress.in)
  • With their function as biomimetic material, synthetic hydrogels or hydrogel-forming natural polymers (e.g. collagen, alginate or agarose) are utilized to reproduce the filamentous nature and properties of extracellular matrix serving as scaffolds for 3D cell culture, artificial skin, actuators, biosensors, drug delivery vehicles and tissue-engineered products for cell matrices [4] . (materialstoday.com)
  • clariti® 1 day toric contact lenses accomplish that with a silicone hydrogel material - the. (cimlainfo.ru)
  • Smart Silicone chemistry transports oxygen so efficiently that it requires less raw silicon (only % content), leaving more space for hydrophilic material. (cimlainfo.ru)
  • Many advanced antibacterial hydrogels have been developed, each possessing unique qualities, namely high water swellability, high oxygen permeability, improved biocompatibility, ease of loading and releasing drugs and structural diversity. (eurekaselect.com)
  • A retrospective, cross-sectional study by Shields et al found that in the United States between 2016 and 2018, the direct inpatient health-care costs for initial encounters with tap water scald burns was $206.69 million, with emergency department (ED) visits costing $29.79 million. (medscape.com)
  • [ 13 ] In a large US study, from 2016 to 2018, Bentivegna et al showed that tap water warmer than 49ºC (120ºF) is a significant cause of scald burns in children under 5 years, with the majority of victims being boys, non-Hispanic Whites, children on public insurance, and youngsters from urban locations. (medscape.com)
  • The Proclear Multifocal Toric is a 59% water, DW bifocal lens that also corrects astigmatism. (foreyes.com)
  • Clariti 1 Day Toric Benefits & Features · Daily silicone hydrogel toric lenses for astigmatism · WetLoc technology refreshes, moisturises and hydrates the eyes. (cimlainfo.ru)
  • In contrast to previous formulations, these gels do not show degradation of their photo-induced shrinking ability after multiple washings in deionised water and repeated switching over a two month period. (dcu.ie)
  • In looking for materials that can help to harvest water from the air, the team zeroed in on hydrogels -- slippery, stretchy gels that are mostly made from water and a bit of cross-linked polymer. (sciencedaily.com)
  • In most studies, researchers had previously synthesized samples by soaking hydrogels in salty water and waiting for the salt to infuse into the gels. (sciencedaily.com)
  • Hydrogels are gels with a very high water content. (ukri.org)
  • Improving hydrogels' toughness by increasing the dissipative properties of their network. (nature.com)
  • The 20k/MCS hydrogels exhibited higher equilibrium water content, ultimate strain, and toughness, but lower equilibrium moduli than MCS and 3.4k/MCS hydrogels. (queensu.ca)
  • When a water-miscible non-solvent is added to water, the water-swollen hydrogel often shrinks or collapses. (scirp.org)
  • As result of the formation of the more hydrophobic SP isomer, dehydration of the main polymer chain occurs and the hydrogel shrinks. (dcu.ie)
  • I characterized the mechanics and proteomics of real bone marrow and used this data to customize the design of a hydrogel made with only PEG and synthetic peptides. (umass.edu)
  • The hydrogel platform is made of branched polymer chains that are covalently crosslinked, and can be engineered to increase or decrease the crosslink density, which alters their degradation rate. (ophthalmologytimes.com)
  • Photo-responsive engineered hydrogels can be made to collapse and thereby release a percentage of their water content upon light irradiation. (dcu.ie)
  • The models were made and sliced with software.FindingsThe hydrogels can be cured efficiently with 405-nm visible light. (deepdyve.com)
  • Made with silicone hydrogel, Biofinity® lenses provide long-lasting comfort and hydration throughout the entire month. (lenstore.co.uk)
  • According to the researchers, g-CN-based hydrogels with tunable mechanical properties could be promising for a number of advanced hydrogel applications. (chemistryviews.org)
  • Polyethylene glycol (PEG) hydrogels are tunable cell culture platforms that recapitulate tissue geometry, water content, and bulk modulus. (umass.edu)
  • The in situ formed hydrogel encapsulates the therapeutic molecule and releases the agent over time as the hydrogel degrades. (ophthalmologytimes.com)
  • Of particular interest is an injectable, in situ gelling hydrogel for cell encapsulation that can be delivered with low cytotoxicity to native chondrocytes and encapsulated cells. (queensu.ca)
  • Characterization studies were performed using physically and chemically crosslinked hydrogel systems, including gelatin hydrogels (6-10 wt. (aip.org)
  • The hydrogel is prepared conveniently with hydroxyethyl acrylate, cross-linker, gelatin and photoinitiator, and can be printed into certain 3D patterns with the direct ink write (DIW) 3D printer designed and developed by the research group.Design/methodology/approachIn this paper, the authors designed a composite sensitization initiation system that is suitable for hydrogels. (deepdyve.com)
  • While adding various content of gelatin and cross-linker, the mechanical properties of hydrogels show from soft and fragile (elastic modulus of 121.18 kPa and work of tension of 218.11 kJ·m−3) to rigid and tough (elastic modulus of 505.15 kPa and work of tension of 969.00 kJ·m−3). (deepdyve.com)
  • One of the advantages of hydrogels consists in their capability of high swelling and in exhibiting a first-order phase transition (collapse) caused by a small change in external conditions such as temperature, electric field, solvent composition, etc. [14] - [19]. (scirp.org)
  • The healthier advantages of silicone hydrogel lenses. (cimlainfo.ru)
  • Hydrogels are three-dimensional networks of hydrophilic polymer chains with properties in between liquids and solids. (scirp.org)
  • Hydrogels consist of a hydrophilic polymer network and a large amount of water as the dispersion medium. (imechanica.org)
  • In hydrogels, structure and stability of water molecules are highly affected by the bonds. (wikipedia.org)
  • The polar groups in the polymer strongly bind water molecules and form hydrogen bonds which also cause hydrophobic effects to occur. (wikipedia.org)
  • Through containment, localization, and protection from inflammatory response, the hydrogel expands the utility of therapeutic molecules via more effective and consistent delivery. (ophthalmologytimes.com)
  • The most widely used photo-sensitive molecules for photo-actuation of hydrogels are spiropyrans as they allow for reversible conformational, hydrophobicity/hydrophilicity and polarity changes upon irradiation with light of particular wavelengths. (dcu.ie)
  • Although the contents of the filling water molecules may reach as high as 90%, one can realize extraordinary fracture energy as high as 9000Jm-2 for polyacrylamide-alginate hydrogel [5]. (imechanica.org)
  • Their major drawback is that, because they are formed mainly of water, they do not tend to allow for the precise control of biochemical signalling molecules that is so important in directing how a stem cell functions. (ukri.org)
  • Unique molecular interactions between graphene derivatives and various small or macromolecules enable the fabrication of various functional hydrogels appropriate for different biomedical applications. (nature.com)
  • In this mini-review, we highlight the recent progress in GO-incorporated hydrogels for biomedical applications while focusing on their specific uses as mechanically strong materials, electrically conductive scaffolds/electrodes, and high-performance drug delivery vehicles. (nature.com)
  • Hydrogels for biomedical applications. (nature.com)
  • Chai Q, Jiao Y, Yu X. Hydrogels for biomedical applications: their characteristics and the mechanisms behind them. (nature.com)
  • Biomedical applications of hydrogels: a review of patents and commercial products. (nature.com)
  • Water uptake property of hydrogels or "hungry networks" accounts for a great number of biomedical and technological applications. (scirp.org)
  • Currently, hydrogels with an antibacterial function are a research hotspot in biomedical field. (eurekaselect.com)
  • A more recent approach proposes tissue engineering the electrode interface through the use of encapsulated neurons within hydrogel coatings. (frontiersin.org)
  • Here, we report on the fabrication of hydrogel coatings by using non-thermal gas discharges, referred to as plasma, a gaseous state in which free electrons and ionized atoms exist. (materialstoday.com)
  • A novel approach to generate hydrogel coatings composed of 2-hydroxyethyl methacrylate (HEMA) and the tertiary amine methacrylate 2-(diethylamino)ethyl methacrylate (DEAEMA) copolymerized in 1:1 volume ratio through atmospheric-pressure plasma polymerization is presented. (materialstoday.com)
  • In a one-step procedure, the team combined water and g-CN with N , N -dimethylacrylamide (DMA) and N , N '-methylenebis(acrylamide) (MBA) and irradiated the mixture with visible light to induce gelation. (chemistryviews.org)
  • Novel sorbent hydrogels containing acrylamide/sodium vinylsulfonate, carboxymethyl cellulose and zeolite were synthesized with free radical solution polymerization by using ammonium persulfate/ N , N , N' , N' -tetramethylethyle - nediamine as redox initiating pair in presence of poly(ethylene glycol) diacrylate as crosslinker. (scirp.org)
  • Montheil T, Echalier C, Martinez J, Subra G, Mehdi A. Inorganic polymerization: an attractive route to biocompatible hybrid hydrogels. (nature.com)
  • Here, I developed a new class of tissue-specific PEG-based materials and provided biocompatible strategies to improve the user handling and cell viability post-encapsulation when using these hydrogels. (umass.edu)
  • Graphene and graphene derivatives (e.g., graphene oxide (GO)) have been incorporated into hydrogels to improve the properties (e.g., mechanical strength) of conventional hydrogels and/or develop new functions (e.g., electrical conductivity and drug loading/delivery). (nature.com)
  • In this way, significantly faster kinetics for the hydrogel shrinking and re-swelling processes have been obtained compared to conventional hydrogels. (dcu.ie)
  • HEMA and DEAEMA were selected due to the presence of polymerizable structures (e.g. vinyl groups) and because of their capacities to undergo hydrogen bonding in the plasma-polymerized film leading to inter- and intramolecular cross-linking to maintain the integrity of the hydrogel, in addition to conventional cross-linking reactions during plasma polymerization, resulting in complex networked structures. (materialstoday.com)
  • While PEG hydrogels can easily be tuned to mimic tissue mechanics, most PEG platforms contain between 1-3 biofunctional peptide moieties, chosen to maximize cell phenotype, rather than represent features of specific tissues. (umass.edu)
  • The company has created a way to encapsulate a wide range of pharmaceuticals within its hydrogel to provide targeted, sustained delivery of therapeutic levels of drugs to ocular tissues. (ophthalmologytimes.com)
  • We aim to gain a better understanding of the relationship between T cell functions and their physical microenvironment by 3D printing hydrogels as a model for the soft tissues and organs in our bodies. (edu.au)
  • It is established that the polymer increases the total and productive moisture reserve in the soil and improves agrophysical properties, creates more favourable conditions for the adaptation and development of wood species, increases the drought resistance of plants in terms of heat resistance, water retention, total hydration and the content of mobile moisture in the tissues of leaves of wood species. (inderscience.com)
  • The aim of my research is to develop a new type of hydrogel formed from nano-sized (1 millionth of a millimetre) clay particles that, when delivered into the body, provides an environment able to stimulate and direct stem cells to repair and regenerate diseased or damaged tissues such as bone, cartilage or skin. (ukri.org)
  • It has been seen that the lower equilibrium swelling factor values in all solvent compositions in comparison with the equilibrium swelling factor values in water. (scirp.org)
  • With the DIW 3D printer, pre-gel hydrogel solution can be printed into objects with certain dimension.Originality/valueIn this work, a composite sensitization initiation system was designed, and fast curing hydrogels with adjustable mechanical properties had been prepared conveniently, which has high equilibrium water content and 3D printability with the DIW 3D printer. (deepdyve.com)
  • In addition, 3.4k/MCS hydrogels were tougher than MCS hydrogels but had a comparable equilibrium modulus. (queensu.ca)
  • It was to investigate the water uptake properties of series of the novel hydrogels, the semi IPNs and the hybrid/biohybrid composite hydrogel sorbents synthesized in this study. (scirp.org)
  • Using neodymium (Nd) and manganese (Mn) ions co-doped with whitlockite nanoparticle (Nd10%Mn10%WH NPs) and sodium alginate (SA), we designed and synthesized an organic-inorganic composite hydrogel (Nd10%Mn10%WH-SA) that displayed the excellent fluorescence and photothermal properties. (bvsalud.org)
  • Q air = 23.8 ± 1.5) enabled continuous monitoring of high-frequency hydrogel shear storage and loss moduli ( G′ f and G″ f , respectively) calculated by sensor data and fluid-structure interaction models. (aip.org)
  • Hydrogels possess a comfortable degree of flexibility similar to natural tissue, due to their significant water content. (ophthalmologytimes.com)
  • These flesh-like properties have motivated the research and development of self-healing hydrogels in fields such as reconstructive tissue engineering as scaffolding, as well as use in passive and preventive applications. (wikipedia.org)
  • Song F, Li X, Wang Q, Liao L, Zhang C. Nanocomposite hydrogels and their applications in drug delivery and tissue engineering. (nature.com)
  • Bioinformatics on human tissue histology identified 20 different cell-instructive peptides that represent the protein signature of bone marrow and can be incorporated into a hydrogel matched to the compressive modulus of marrow. (umass.edu)
  • Compared to a non-tissue specific hydrogel, the marrow-customized hydrogel provides a better niche for bone marrow-derived mesenchymal stem cell differentiation and proliferation in response to soluble cues. (umass.edu)
  • I also highlighted how tissue-inspired hydrogels can improve in vitro studies of cell-cell and cell-matrix interactions. (umass.edu)
  • Hydrogels, as a class of materials for tissue engineering and drug delivery, have high water content and solid-like mechanical properties. (eurekaselect.com)
  • One deliverable of this effort is a proprietary polyethylene glycol (PEG) hydrogel platform technology (Ocular Therapeutix). (ophthalmologytimes.com)
  • Moreover, improved reswelling performance of these hydrogels has been realised by inducing porosity through the use of poly(ethylene glycol) as a pore forming agent. (dcu.ie)
  • Similarly, three types of natural amino acids, including serine, aspartic acid and histidine, modified silicone hydrogel contact lenses exhibited excellent hydrophilicity and non-damage to the rabbit's eyes, but only serine modified zwitterionic contact lens showed superior protein fouling resistance compared with the current commercial hydrogel contact lens, which may have great potential application in ophthalmology. (polymer.cn)
  • Hydrogel: preparation, characterization, and applications: a review. (nature.com)
  • Here, we report for the first time that resonance in dynamic-mode cantilever sensors persists in hydrogels and enables the real-time characterization of hydrogel viscoelastic properties and the continuous monitoring of sol-gel phase transitions (i.e., gelation and dissolution processes). (aip.org)
  • These hydrophobic effects can be exploited to design physically crosslinked hydrogels that exhibit self healing abilities. (wikipedia.org)
  • g-CN that is physically dispersed in the hydrogel does not have the same strengthening effect. (chemistryviews.org)
  • Hydrogels are synthesized from hydrophilic monomers by either chain or step growth, along with a functional crosslinker to promote network formation. (wikipedia.org)
  • Highly swollen crosslinked hydrophilic copolymers called "hydrogels" are synthesized by free radical crosslinking copolymerization with some multifunctional crosslinkers with some co-monomers including hydrophilic groups for increasing of their swelling capacity. (scirp.org)
  • Fan, Jun 2021-06-04 00:00:00 This paper aims to show a series of hydrogels with adjustable mechanical properties, which can be cured quickly with visible light. (deepdyve.com)
  • Can absorb up to three times their weight in fluid or donate moisture due to high water content (89.5% water). (senior.com)
  • Typically, traditional silicone contact lenses either provide a high water content with a stiffer lens, or a softer lens with lower moisture content. (lens.com)
  • supported by their high water content and special lens design. (visionexpress.com)
  • Our ultra-gentle, high-water content hydrogels are an excellent transdermal drug delivery system for a broad range of OTC and Cosmetic ingredients. (nexgel.com)
  • As a result, hydrogels, self-healing alike, develop characteristic firm yet elastic mechanical properties. (wikipedia.org)
  • Fu J, In Het Panhuis M. Hydrogel properties and applications. (nature.com)
  • Preparation and enhanced mechanical properties of hybrid hydrogels comprising ultralong hydroxyapatite nanowires and sodium alginate. (nature.com)
  • Nanofibers and nanosheets, for example, can improve the mechanical properties of hydrogels, but often change the material's swelling properties significantly. (chemistryviews.org)
  • The sheetlike graphitic carbon nitride (g-CN) is one promising candidate as a reinforcer for hydrogels due to its low specific weight, cost-effectiveness, and adjustable properties. (chemistryviews.org)
  • This means the hydrogel can be specifically programmed for a variety of disease states depending on the molecule's properties and the desired duration of therapy required. (ophthalmologytimes.com)
  • In order to develop horticulture in arid conditions of South-East and East Kazakhstan with the help of water-saving innovative technologies, we studied the influence of water-retaining polymer 'AQUASORB' on the agrophysical properties of soil. (inderscience.com)
  • When they tested the resulting material's ability to absorb water vapor, the samples soaked up very little, as they contained little salt to absorb the moisture in the first place. (sciencedaily.com)
  • Most self-healing hydrogels rely on electrostatic attraction to spontaneously create new bonds. (wikipedia.org)
  • When the light source is removed, the SP is spontaneously reprotonated and the hydrogel reswells. (dcu.ie)
  • Biodegradable waveguides based on glasses, hydrogels, and silk have been reported, but most of these devices rely on complex fabrication procedures. (nature.com)
  • Different crosslinking methods can be implemented for the design of a hydrogel. (wikipedia.org)
  • Previously approved for use in spinal, neurological, and angioplasty procedures, the company is now engineering the hydrogel technology to design therapies specifically for sustained-release ocular drug applications. (ophthalmologytimes.com)
  • They have a water content of 48%, and a Aspherical lens design. (lens.com)
  • The enormous diversity provided by the design of multifunctional hydrogels is realized by combining hierarchical structuring inspired by nature with the variety of materials available by engineering are of utmost significance for the desired application. (materialstoday.com)
  • Finite element design optimization of a hyaluronic acid-based hydrogel drug delivery device for improved retention. (cdc.gov)