Results 71 to 80 of about 967,661 (341)

The Effect of Adding Alginate Natural Polymer on the Structure of Polyvinyl Alcohol Biocompatible Nanofibers in Electrospinning Process

open access: yesIranian South Medical Journal, 2019
Background: Nowadays, in order to preserve the environment and sustainable development, the use of natural and renewable resources is a priority for industries.
Maryam Najafiasl   +3 more
doaj  

Ferulated Poly(vinyl alcohol) based hydrogels

open access: yesHeliyon, 2023
New graft copolymers were prepared by reaction of poly (vinyl alcohol) (PVA) with mono-imidazolide or bis-imidazolide derivatives of ferulic acid (FA) with the formation of ester bonds. The obtained graft copolymers, thanks to the crosslinking capability
Simone Pepi   +12 more
doaj  

Collagen-Polyvinyl Alcohol-Indomethacin Biohybrid Matrices as Wound Dressings

open access: yesPharmaceutics, 2018
The aim of this study is to design, develop and evaluate new biohybrid sponges based on polymers (collagen and polyvinyl alcohol) with and without indomethacin as anti-inflammatory drug model to be used for tissue regeneration in wound healing.
Ștefania Marin   +7 more
doaj   +1 more source

THE ACETALIZATION OF POLYVINYL ALCOHOL

open access: yesSen'i Gakkaishi, 1957
Acetalization of polyvinyl alcohol powder and fiber with azelaic acid aldehyde OHC(CH2)7 COOH was undertaken.Polyvinyl alcohol can be easily acetalized both in homogeneous (aqueous solution) and heterogeneous (fibrous) reactions, and the degree of acetalization may be determined by the titration of carboxyl groups.But it was difficult to obtain fibers ...
openaire   +3 more sources

Supramolecular Zwitterionic Hydrogels for Information Encryption, Soft Electronics and Energy Storage at Icy Temperature

open access: yesAdvanced Functional Materials, EarlyView.
A series of ACHPES‐based hydrogels are developed and realizing multiple functions like anti‐fouling properties, alkali‐induced color/fluorescence‐changing ability and strain sensing. Furthermore, the hydrogels show excellent anti‐freezing performance, whose optical, mechanical and electrical properties remain stable at −47.3 °C.
Gaopeng Wang   +9 more
wiley   +1 more source

Polyvinyl alcohol surface modification

open access: yes, 2011
Poly(vinyl alcohol) (PVA) is a polymer used in numerous applications, principally those in which its high water solubility is a desirable asset. However there are also areas where PVA is limited by its inherent solubility (for example some specific environments in the biomedical field).
Thomas, M, Thomas, Matthew
openaire   +2 more sources

Dual‐Nanoparticle Engineered Hydrogel Reverses Bicellular Oxidative Stress to Accelerate Diabetic Fracture Healing

open access: yesAdvanced Functional Materials, EarlyView.
CD105‐LNPs and PS‐LNPs can deliver α‐lipoic acid to bone marrow mesenchymal stem cells and bone marrow‐derived macrophages, reversing high glucose‐induced oxidative stress while enhancing osteogenesis and M2 polarization. Integrating both nanoparticles into glucose‐responsive hyaluronic acid hydrogel forms DLNPs@HA hydrogel, which accelerates diabetic ...
Yanzhi Zhao   +11 more
wiley   +1 more source

Dried-state bacterial cellulose (Acetobacter xylinum) and polyvinyl-alcohol-based hydrogel: An approach to a personal care material

open access: yesJournal of Science: Advanced Materials and Devices, 2018
Freeze-dried bacterial cellulose and polyvinyl alcohol were successfully prepared. The weight ratios of polyvinyl alcohol to bacterial cellulose were set at 3:1, 5:1 and 10:1.
N. Chunshom   +3 more
doaj  

Topological Insulator Layered Bi2Te3 Based 3D‐Printed Nanocarbon Electrode for Rechargeable Aqueous Ammonium‐Ion Battery

open access: yesAdvanced Functional Materials, EarlyView.
In this work, Bi2Te3 is integrated into a 3D‐printed nanocarbon electrode for NH4+ storage. A rocking‐chair battery with CuHCF as the cathode delivers a high energy density of 134.8 Wh kg−1 and a power density of 1800 W kg−1. The design allows easy recovery of carbon additives, promoting sustainability and recyclability in next‐generation aqueous ...
Sunny Nandi, Martin Pumera
wiley   +1 more source

Stretching‐Orientation Reinforced Double Network Solvent‐Free Eutectic Gels for Ultrarobust, Flexible Human‐Machine Interaction Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work develops an ultrarobust, flexible, and solvent‐free eutectic gel featuring stretch‐induced orientation. Overcoming hydrogel limitations, the gel achieves record toughness (133.86 MJ m−3) while integrating strain/temperature/capacitive sensing.
Tingzhong Li   +5 more
wiley   +1 more source

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