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Your search keyword '"1 vinyl 2 pyrrolidinone"' showing total 2 results
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2 results on '"1 vinyl 2 pyrrolidinone"'

1. A facile approach toward multifunctional polyethersulfone membranes via in situ cross-linked copolymerization

Author

Sun, C., Ji, H., Qin, H., Nie, S., Zhao, Weifeng, Zhao, C., Sun, C., Ji, H., Qin, H., Nie, S., Zhao, Weifeng, and Zhao, C.

Abstract

In this study, multifunctional polyethersulfone (PES) membranes are prepared via in situ cross-linked copolymerization coupled with a liquid-liquid phase separation technique. Acrylic acid (AA) and N-vinylpyrrolidone (VP) are copolymerized in PES solution, and the solution is then directly used to prepare PES membranes. The infrared and X-ray photoelectron spectroscopy testing, scanning electron microscopy, and water contact angle measurements confirm the successful modification of pristine PES membrane. Protein adsorption, platelet adhesion, plasma recalcification time, and activated partial thromboplastin time assays convince that the modified PES membranes have a better biocompatibility than pristine PES membrane. In addition, the modified membranes showed good protein antifouling property and significant adsorption property of cationic dye. The loading of Ag nanoparticles into the modified membranes endows the composite membranes with antibacterial activity., QC 20151214, QC 20160318

Published
2015
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2. Preparation and characterization of electrospun poly(3-hydroxybutyric acid)-poly(N-vinylpyrrolidone) and poly(caprolactone)-poly(N-vinylpyrrolidone) fibers as potential scaffolds for skin regeneration

Author

Nagiah, N., Ramanathan, G., Shobana, L., Singaravelu, S., Uma, T.S., and Natarajan, T.S.

Subjects
porosity, X ray diffraction, extracellular matrix, keratinocyte, thermogravimetry, molecular scaffold, biocompatibility, 3 hydroxybutyric acid, polycaprolactone, human, infrared spectroscopy, electrospinning, water retention, poly (caprolactone) poly (n vinylpyrrolidone), poly(3 hydroxybutyric acid) poly (n vinylpyrrolidone), MTT assay, human cell, 1 vinyl 2 pyrrolidinone, unclassified drug, cell proliferation, tensile strength, tissue engineering, hexafluoro 2 propanol, skin fibroblast, differential scanning calorimetry, scanning electron microscopy, fiber
Abstract

Tissue engineered scaffold mimics the structure and function of native extracellular matrix proteins. Electrospinning is a simple and versatile method to produce ultrathin extracellular matrix mimicking fibers for tissue engineering. Blended fibers of poly(3-hydroxybutyric acid)-Poly(N-vinylpyrrolidone) and Poly(caprolactone)-Poly(N-vinylpyrrolidone) were electrospun using 1,1,1,3,3,3 hexafluoro-2- propanaol as solvent. The resultant fibers were tested and analyzed using scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction, Attenuated total refelection Fourier transformed infrared spectroscopy. The fibrous scaffolds were found to exhibit good tensile strength and proved the stability of fibers for tissue engineering applications. The fibrous scaffold supported the growth and rapid proliferation of human dermal fibroblasts and keratinocytes with normal morphology thus proving its reliability in using it as a potential scaffold for skin regeneration. � 2013 American Scientific Publishers, All rights reserved.

Published
2013

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