Polymer poly poly a. Medical search. Frequent questions

Poly(rotaxan)s of poly(ethylene glycol) and α-cyclodextrines (CD) block copolymers end-capped with poly(methyl methacrylate) chains were synthesized by atom transfer radical polymerization. (uc3m.es)
X-ray analysis showed a characteristic signal around 20θ for all copolymers with an amorphous halo mainly due to inter-crystal poly(ethylene glycol) and poly(methyl methacrylate) chains. (uc3m.es)
In order to investigate poly(N-vinyl pyrrolidone) as an alternative to polyethylene glycol) in preparing a biomedical polymer, we synthesized a series of reverse thermogelling poly(N-vinyl pyrrolidone-b-alanine) (PVP-PA). (ewha.ac.kr)
This paper suggests that PVP can be a promising alternative to poly(ethylene glycol) in designing a reverse thermogelling biomaterial. (ewha.ac.kr)
Poly(ethylene glycol) diacrylate (PEGDA) is a polyethylene glycol (PEG) based material that can be used for a variety of tissue engineering and drug delivery based applications. (sigmaaldrich.com)
This peptide presents the methylamino groups of sarcosine (N-methylglycine) at both termini for co-polymerisation with alpha,omega-bis(oxiranylmethoxy)poly(ethylene glycol) of mean M-w 1650. (uea.ac.uk)

Polyethylene terephthalate (PET) is a thermoplastic which belogs to the family of polyesters. (nsb-polymers.de)
Liquid-crystalline main-chain polymers with a poly(p-phenylene terephthalate) backbone. (tue.nl)
The crystallized PEDOT:PSS on a polyethylene terephthalate (PET) substrate exhibited excellent electrical/electrochemical/optical characteristics, long-term underwater stability without film dissolution/delamination, and good viability for primarily cultured cardiomyocytes and neurons over several weeks. (nature.com)
Recent reports suggest that endocrine disruptors may leach into the contents of bottles made from polyethylene terephthalate (PET). (nih.gov)
Polyethylene terephthalate (PET) is the material most commonly used to make the clear plastic bottles in which bottled water is sold. (nih.gov)
Plastic beverage bottles sold in the United States are made from a type of plastic known as polyethylene terephthalate (PET). (nih.gov)

A tunability as high as 86% was obtained at the Curie temperature in poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] 55/45 copolymers when a 100 MV/m dc electric field was applied. (psu.edu)
The large difference was regarded to come from the domain size change when CFE was introduced into the copolymers, and the polymer changed from normal ferroelectric for copolymers to the relaxor ferroelectric for terpolymers. (psu.edu)
Our block copolymers are designed with segmented degradation properties including our Glycoprene®, Lactoprene®, and Strataprene® polymer series. (poly-med.com)
This polymer family provides the recognized performance of PGLA copolymers tailored for the most demanding applications. (poly-med.com)
PEA/poly(ethylene furanoate) (PEF) copolymers at high PEA concentrations were shown to degrade within 30 days while neat PEA had not fully degraded, however, mixtures approaching 50/50 mol% hardly degrade at all in the presence of lipases. (wikipedia.org)

This chapter gives a brief oversight of the preparation, characterization, and electromagnetic interference shielding studies of conducting polymer and MWCNT composites. (benthamscience.com)
The dielectric and electromagnetic shielding measurements of the polymer composites were conducted by a vector network analyzer. (benthamscience.com)
Synthesis of Poly (3, 4-ethylene dioxythiophene) Conducting Polymer Composites for EMI Shielding Applications, Smart Materials Design for Electromagnetic Interference Shielding Applications (2022) 1: 213. (benthamscience.com)
Chatterjee T, R. Krishnamoorti, Rheology of polymer carbon nanotube composites, Soft Matter 9 (2013) pp9515 - 9529. (stumejournals.com)

New Na+ ion conducting composite polymer electrolytes comprising of polyethylene oxide (PEO)-NaClO4 and PEO-NaI complexes dispersed with SnO2 are reported. (hw.ac.uk)

Although biodegradable poly(lactide-co-glycolide) (PLGA) polymers have been utilized extensively for the controlled release of peptide drugs, there is still a lack of in-depth understanding of peptide-polymer interaction in PLGA based microspheres. (nih.gov)
They used a biomatrix polymer made of poly[lactide-co-glycolide] (PLGA) a biodegradable material that has undergone significant clinical testing and received high safety ratings. (nih.gov)

It may also be used in the development of novel injectable biodegradable polymers for a variety of biomedical applications. (sigmaaldrich.com)
PEA has been studied as it is biodegradable through a variety of mechanisms and also fairly inexpensive compared to other polymers. (wikipedia.org)
Enzymatic degradation and polymerization using an enzyme were analyzed with respect to the establishment of a sustainable chemical recycling system for poly(ε-caprolactone) (PCL) which is a typical biodegradable synthetic plastic. (elsevierpure.com)

Discover our implantable drug delivery systems made of bioresorbable polymers that release precise quantities of therapeutic agents gradually over time. (dsm.com)
Our bioresorbable polymers are manufactured in a cGMP-compliant facility and under an ISO 13485-certified quality system. (poly-med.com)
Bioresorbable polymers, also known as bioabsorbable polymers, are synthetic materials that can be utilized in implantable medical devices for treatment and degrade over time when the scaffold is no longer required. (poly-med.com)
Poly-Med offers a catalog of bioresorbable polymers that include linear polymers such as polydioxanone (PDO) and polyglycolide-co-lactide (PGLA). (poly-med.com)

Professor Heather Maynard was one of six individuals selected as a 2013 Fellow of the Division of Polymer Chemistry (POLY Fellow) by the Division of Polymer Chemistry, of the American Chemical Society. (ucla.edu)
All POLY Fellows will be awarded plaques during the Spring ACS National Meeting, during the Division of Polymer Chemistry/Division of Polymeric Materials: Science and Engineering (POLY/PMSE) Award Reception on Wednesday, April 10 at 5:30 p.m. (ucla.edu)
The Division of Polymer Chemistry (POLY) was founded in 1951 and is the second largest division of ACS, following the Division of Organic Chemistry. (ucla.edu)
These results suggest that, apart from changes in the nanofiller surface chemistry, changes in the underlying molecular conformation of polymers are also important to improve the breakdown performance of nanocomposites. (reading.ac.uk)
Synthesis of ring-type (or branched) polymers including polyethylene glycols was archived via "click" chemistry of 5,6-diazido-2-benzyl-1H-benzimidazole (Di-N-3) [or triazidoacetohydrazide derivative (Tri-N-3)] and terminally dipropargyl polyethylene glycols (PEG-dipropargyl) with different molecular weights. (erdogan.edu.tr)
The multi instruments studies of the obtained polymers show that the ring-type and branched polymers easily formed as a result of "click"chemistry. (erdogan.edu.tr)
The ability to create a layer of biocompatible polymer, such as PHEMA, at the surface, or create nanostructured surface consisting of nanodomains of different polymeric compositions, and engineer the improvements in the mechanical properties of the materials through the use of gradient systems should allow the creation of novel materials for biomedical application through the optimisation of mechanical properties, surface chemistry and biological properties. (brighton.ac.uk)

The purpose of the present study is to develop a systematic approach to assess the peptide-polymer interaction in PLGA based microsphere dosage forms. (nih.gov)
The results from this study will provide better understanding of peptide-polymer interaction in PLGA based drug delivery systems, which will help the Agency in developing recommendations for evaluation of generic microspheres containing peptide drugs. (nih.gov)
PLGA and other biomatrix polymers are currently being studied for use in bone and other tissue engineering. (nih.gov)
The PULSED microparticles are composed of PLGA, or poly(lactic-co-glycolic acid), a commonly used polymer in a number of FDA-approved devices. (nih.gov)
By extending the overall length of the polymer, modifying the ratio of lactic acid to glycolic acid, and "capping" the end of the polymer with different molecules, researchers can dictate how long it takes PLGA to disintegrate (and thereby release its therapeutic payload). (nih.gov)

PEA is not miscible with low density polyethylene (LDPE). (wikipedia.org)
In an attempt to increase nanocomposites' voltage rating, the current work reports on the effects of non-isothermal crystallization (fast, moderate, and slow crystallizations) on the structure and dielectric properties of a polyethylene blend (PE) composed of 80% low density polyethylene and 20% high density polyethylene, added with silicon dioxide (SiO2) and silicon nitride (Si3N4) nanofillers. (reading.ac.uk)

Rheological and surface properties of the poly(lactic) acid (PLA) based nanocomposites incorporating 0-9 wt. (stumejournals.com)
11. Mechanisms of chitosan-coated poly(lactic-co-glycolic acid) nanoparticles for improving oral absorption of 7-ethyl-10-hydroxycamptothecin. (nih.gov)
19. Antimicrobial activity of a new synthetic peptide loaded in polylactic acid or poly(lactic-co-glycolic) acid nanoparticles against Pseudomonas aeruginosa, Escherichia coli O157:H7 and methicillin resistant Staphylococcus aureus (MRSA). (nih.gov)
This polymer is composed of repeating units, where x represents the number of lactic acid units and y represents the number of glycolic acid units. (nih.gov)

Blends of PEA with polymers such as poly(vinyl acetate) showed improved mechanical properties at elevated temperatures. (wikipedia.org)
Recently, imposing non-isothermal crystallization processes on polyethylene blends have been demonstrated to be favorable for breakdown strength improvements of dielectric materials. (reading.ac.uk)

Thus, increasing demand for polyurethane coated fabrics will further drive the market for polymer coated fabrics in the forecast period. (researchandmarkets.com)
Gradient semi-interpenetrating polymer networks (gradient semi-IPNs) as well as the traditional semi-interpenetrating polymer networks (semi-IPNs) were synthesized using polyurethane (PU) and poly(2-hydroxyethyl methacrylate) (PHEMA). (brighton.ac.uk)
These di- or poly-isocyanates are used in a variety of polymer and resin production, including polyurethane foam, isocyanate resins and elastomer (e.g. (cdc.gov)

The developed approach should be able to identify the different types of peptide-polymer interactions, characterize and quantify related peptide degradation impurities (e.g., acylation peptide adducts), and determine the formulation parameters, hydration and degradation factors, and manufacturing processes responsible for facilitating peptide-polymer interaction. (nih.gov)
However, during the manufacturing process, peptides may react with the polymer to form degradation impurities (e.g., acylated peptide adducts), which could result in a loss of activity, immunogenicity, and toxicity. (nih.gov)
Therefore, it is important for regulatory agencies and pharmaceutical industries to obtain a better understanding of peptide-polymer interactions and develop a systematic approach to fully characterize and control such peptide related degradation impurities in these drug delivery systems. (nih.gov)
An important property in the speed of degradation is the crystallinity of the polymer. (wikipedia.org)

By using Di-N-3 (or Tri-N-3) and PEG-dipropargyl, ring-type (or branched) polymers including polyethylene glycols were synthesized. (erdogan.edu.tr)

Recycling polymer composite granulate/regrind using big area additive manufacturing. (ornl.gov)
The recent subject of great research challenge and one of the most active area of research for well in materials science include the development of nanofiller reinforced polymer materials for additive manufacturing application. (stumejournals.com)

Quantitative analysis of extent of dispersion of nanofiller by measuring the rheological and surface characteristics of polymer nanocomposites has great technical importance for improving processing conditions, as well as for understanding the fundamental characteristics of materials at the nanoscale. (stumejournals.com)
Hassanabadi H.M., M. Wilhelm, D. Rodrigue, A rheological criterion to determine the percolation threshold in polymer nanocomposites, Rheol. (stumejournals.com)

The topographical and chemical analyses of polymer composite samples were characterized by scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, thermo gravimetric analysis, and Raman spectroscopy. (benthamscience.com)

This chapter attempts to offers an insight into the importance of polymers in the design and development of pharmaceuticals platforms used in ocular therapeutics. (springer.com)

Herein, we developed transparent and conductive direct cellular interfaces based on a water-stable, high-performance poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) film via solvent-assisted crystallization. (nature.com)
We describe the use of PEDOT:PSS conducting polymer microwires to modulate action potentials in single cells. (nih.gov)

The amphiphilic polymers consisting of the hydrophilic PVP block and the hydrophobic PA block formed micelles in water and the micelles aggregated as the temperature increased. (ewha.ac.kr)
In addition, this unique set of polymers provides a hydrophilic component that improves swellability and lubricity. (poly-med.com)

PEA is miscible with a number of polymers including: poly(L-lactide) (PLLA), poly(butylene adipate) (PBA), poly(ethylene oxide), tannic acid (TA), and poly(butylene succinate) (PBS). (wikipedia.org)

The potential of amphiphilic reactive hypercoiling behaviour of poly(styrene-alt-maleic acid) (PSMA) was studied in combination with two diacylphosphatidylcholines (PC) of different chain lengths in aqueous solution. (aston.ac.uk)

abstract = "We have used for the first time a conjugated redox polymer with hydroquinone (HQ) pendant groups covalently attached to the poly(3,4-ethylenedioxythiophene) (PEDOT) backbone as the solid contact (SC) in plasticized poly (vinyl chloride) (PVC) based K+-selective electrodes (K-SCISE). (abo.fi)

DSM portfolio of innovative biomedical materials and process manufacturing technologies: Biomedical Polyethylenes, Biomedical polyurethanes, Collagen Technology, Device Development, and Extracellular Matrix (ECM) Technology. (dsm.com)
Poly-Med, Inc. provides fully traceable, implant-grade materials that offer customized product solutions when an implant does not need to permanently remain in the body. (poly-med.com)
A work recently published in 'Nature Materials' reports highly conjugated two-dimensional conjugated polymers with exceptionally high short-range charge mobility of approaching cm 2 V - 1 s - 1 at room temperature. (mpg.de)
Along time a wide variety of materials, including metals, ceramics and polymers, have been developed and used in different ophthalmic applications. (springer.com)
Among a variety of conductive materials, conjugated polymers have attracted researchers owing to their unique properties in conjunction with their decent electrical conductivity, electrochemical activity, optical transparency, and mechanical flexibility, which are highly beneficial for electrically monitoring and stimulating cellular activities in physiological relevant conditions, i.e., aqueous solutions with many ions and biomolecules 14 . (nature.com)
Early implants consisted of naturally occurring materials (eg, gold or ivory), while modern implants are complex materials such as ceramic, silicone or carbon-based polymers. (medscape.com)

1) Background: The purpose of this in vitro study was to evaluate the color change and stability of a zinc oxide nanoparticle-poly(methyl methacrylate) (ZnO NP-PMMA) nanocomposite for denture base material after immersion in different dietary and cleaning agent solutions. (mdpi.com)

Conductivity of films made of PEA mixed with salts was found to exceed that of PEO4.5LiCF3SO3 and of poly(ethylene succinate)/LiBF4 suggesting it could be a practical candidate for use in lithium ion batteries. (wikipedia.org)

Polymer will stick to most anything, but I have found especially with larger surfaces that the clay if bumped or jarred will pop off or over time will shrink off the surface and then has to be glued back on. (polymerclaydaily.com)
Here I am combining liquid clay with fabric or paper fibers to create a very durable background to then adhere the polymer components," Heather explains. (polymerclaydaily.com)
http://amusedcreations.blogspot.com/2008/11/polymer-clay-on-canvas.html I too have dabbled with polymer clay on canvas around that time, but prefer other media. (polymerclaydaily.com)
Cernit is a modelling polymer clay that contains PVC and plasticizer. (polyclayplay.com)
Children as well as adults or professional artisans or jewelry makers use this polymer clay. (polyclayplay.com)
You can mix up to a third of softener with 2/3 rd of polymer clay Cernit. (polyclayplay.com)
A bead baking rack suspends polymer clay beads for baking. (2wardspolymerclay.com.au)
Tools Bead Baking Rack suspends polymer clay beads for baking and can also for drying beads coated in lacquer or other finishes. (2wardspolymerclay.com.au)

The side-chains are long, linear carbohydrate polymers that are negatively charged under physiological conditions. (nih.gov)

Learn about the latest advancements in biocomposite polymers and how they can be manipulated to control handling characteristics, mechanical properties and absorption times. (dsm.com)

Its lower molecular weight compared to many polymers aids in its biodegradability. (wikipedia.org)

Within this context, a very promising research approach looks at polymer conjugates as tools to promote tissue repair, applications in wound healing, bone resorption or ischemia/reperfusion injuries. (medscape.com)
It is important to say that, although the studies presented in this section are still at an early stage of development, they can be considered as exciting examples of how the field of polymer-drug conjugates is expanding beyond cancer therapy to include new therapeutic applications ( Table 3 & Figure 3 D-E). (medscape.com)
This growth is due to the increasing use of polymer coated fabrics in different transport applications. (researchandmarkets.com)
Polymer-coated fabrics are used primarily for a wide range of automotive applications such as indoor, outdoor, airbags, seatbelt, and coverings. (researchandmarkets.com)

The incorporation of nanofiller graphene into polymers is a promising approach to impart certain electrical and magnetic properties, mechanical reinforcement and high thermal conductivity to the resulting material. (stumejournals.com)

Regardless of the manner of banding, PEA polymer chains pack into a monoclinic crystal structure (some polymers may pack into multiple crystal structures but PEA does not). (wikipedia.org)
Poly(TBAMS) showed antimicrobial properties under conditions typical for meat supply chains. (bvsalud.org)

The dispersion of nanofiller in polymer matrix is a critical issue not only for control of processing but also for pre-defined properties. (stumejournals.com)

In charged polyelectrolyte systems [e.g., poly(acrylic acid), DNA] higher valence counter-ions often results in phase separation. (nih.gov)

The Polymer Coated Fabrics Market is forecast to reach $24.8 billion by 2027, after growing at a CAGR of 5.3% during 2022-2027. (researchandmarkets.com)
The: "Polymer Coated Fabrics Market Report - Forecast (2022-2027)" covers an in-depth analysis of the following segments of the polymer coated fabrics market. (researchandmarkets.com)
The transportation sector held the largest share in the polymer coated fabrics market in 2020 and is projected to grow at a CAGR of 4.8% during the forecast period 2022-2027. (researchandmarkets.com)

Miscibility is determined by the presence of only a single glass transition temperature being present in a polymer mixture. (wikipedia.org)
A consortium of scientists led by University of Mons and MPI for Polymer Research have studied the temperature dependent hole mobility of two structurally similar organic semiconductors: DNTT, and its alkylated derivative, C8-DNTT-C8. (mpg.de)
The influence of temperature , time and product factors on the antimicrobial activity of poly(TBAMS) against different bacteria was determined using a modified test method based on the Japanese Industrial Standard 28012000. (bvsalud.org)

Poly-Seal is a hybrid sealant, which means, PolySeal is a synthetic wax infused with SiO2. (fabdetailsupplies.com)

Potential of the polymer poly-[2-(tert-butylamino) methylstyrene] as antimicrobial packaging material for meat products. (bvsalud.org)
The objective of the study was to investigate the antimicrobial potential of a new SAM(®) polymer poly(TBAMS) as packaging material for meat products . (bvsalud.org)
Results showed a significant reduction in bacterial counts on poly(TBAMS) compared with the reference material of several meat -specific micro-organisms after 24 h at 7°C. Bacterial counts of Staphylococcus aureus , Listeria monocytogenes , Lactobacillus spp. (bvsalud.org)

Researchers have developed a new kind of cancer vaccine using biomatrix polymers. (nih.gov)
After developing a biomatrix polymer that could successfully attract dendritic cells in the lab, the researchers tested it by implanting it under the skin of mice with melanoma cancer. (nih.gov)

To better inform future armor designers, this work investigates the tensile behavior of an ultra high molar mass polyethylene (UHMMPE) flexible UD laminate aged for up to 350 d at two accelerated conditions of 70 °C and 76 % relative humidity (RH), and 70 °C in a desiccator. (nist.gov)

Reactive and functional polymers , 94 , 9-16. (aston.ac.uk)

Anatomy2

Organisms1

Chemicals and Drugs65

Analytical, Diagnostic and Therapeutic Techniques and Equipment13

Phenomena and Processes19

Disciplines and Occupations2

Technology, Industry, Agriculture28

Information Science3

Health Care1

Glycol6

Terephthalate6

Copolymers5

Composites4

Electrolytes1

Lactide-co-glycolide2

Biodegradable3

Bioresorbable polymers4

Chemistry7

PLGA5

Density polyethylene2

Lactic4

Blends2

Polyurethane3

Degradation4

Glycols1

Additive2

Nanocomposites2

Composite1

Therapeutics1

PEDOT:PSS2

Hydrophilic2

Ethylene oxide1

Amphiphilic1

Abstract1

Materials6

Methyl methacrylate1

Salts1

Clay8

Negatively1

Handling characteristics1

Molecular1

Applications4

Incorporation1

Chains2

Properties1

Acrylic1

20223

Temperature3

Synthetic1

Material3

Researchers2

Behavior1

Functional1