Thermoresponsive poly(N-vinylcaprolactam) cryogels: synthesis and its biophysical evaluation for tissue engineering applications.

Journal of Materials Science. Materials in Medicine
Akshay Srivastava, Ashok Kumar

Abstract

The thermoresponsive poly(N-vinylcaprolactam) (PVCl) based cryogel network were synthesized and characterized with respect to physical and biological properties. The PVCl cryogel crosslinked with polyethylene glycol-diacrylate (PEGda) was synthesized in 1% dimethyl sulfoxide containing aqueous medium at -12°C for 12-14 h. The cryogel synthesized in this manner were highly spongy in nature and can absorb water in its porous network. These polymeric cryogel networks have good physical morphology as confirmed by scanning electron microscopy. The estimated porosity of these cryogels was 90% as demonstrated by various methods based on absorption of water and cyclohexane. The median pore diameter and surface area was 30 μm and 2.0253 m(2)/g, respectively as confirmed by analysis on mercury porosimeter. These materials can interact with biological system without any cytotoxic effects. Change in temperature influenced the adsorption of fetal bovine serum (FBS) on PVCl scaffold which showed maximum protein adsorption at 37°C, as compared to that at 25°C. Furthermore, the fibroblast cell adhesion studies showed the potential of these PVCl based cryogels as tissue engineering scaffolds.

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Citations

Jul 10, 2012·Journal of Materials Science. Materials in Medicine·Linda ElowssonBo Mattiasson
Nov 6, 2012·Journal of Materials Science. Materials in Medicine·Tanushree Vishnoi, Ashok Kumar
Feb 15, 2013·Biomacromolecules·Jugal DhandhukiaJ Andrew MacKay
Oct 23, 2012·Chemistry of Materials : a Publication of the American Chemical Society·Xing LiangEugenia Kharlampieva
Apr 11, 2014·Evidence-based Complementary and Alternative Medicine : ECAM·Dolly SinghSung Soo Han
Oct 17, 2015·Biomacromolecules·Tomáš SedlačíkFrantišek Rypáček
Apr 7, 2017·Tissue Engineering. Part a·Renata L SalaJason A Burdick
Aug 14, 2019·Journal of Biomedical Materials Research. Part a·Mehdi RazaviAvnesh S Thakor
Oct 30, 2014·Advanced Healthcare Materials·Ji LiuChristine Jérôme
Oct 3, 2019·Bioconjugate Chemistry·Zhi ZouUlrich Schwaneberg
Jan 20, 2021·ACS Biomaterials Science & Engineering·Deepak Bushan RainaMagnus Tägil

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