INEB
INEB
TitleIn vitro biodegradability of chitosan-organosiloxane hybrid membrane
Publication TypeBook
Year of Publication2005
AuthorsTsuru, K, Shirosaki, Y, Hayakawa, S, Osaka, A, Lopes, MA, Santos, JD, Fernandas, MH
Series TitleKey Engineering MaterialsKey Eng Mat
Volume284-286
Number of Pages823 - 826
ISBN Number10139826 (ISSN)
Keywordsbiodegradability, Biological membranes, chitosan, Chitosan chains, Chitosan inorganic hybrid membranes, Chitosan-lnorganlc hybrid, Crosslinking, Fourier transform infrared spectroscopy, Nuclear magnetic resonance spectroscopy, R- glycidoxypropyltrimethoxysilane GPSM, Reaction kinetics, Silicates, Sol-gel process
AbstractChitosan-silicate hybrid membranes were prepared using γ- glycidoxypropyltrimethoxysilane (GPSM) through a sol-gel process. The amino groups of chitosan chains were reacted with the epoxy groups of GPSM and GPSM have a function as the agent to cross-link the chitosan chains. The cross-linking degree of the hybrid membranes was determined by ninhydrin assay. Fourier-transform infrared (FT-IR) spectroscopy and 29Si cross-polarization (CP) magic-angle spinning (MAS)-NMR spectroscopy were used to assess the structure of the hybrid membranes. The biodegradability of the hybrid membranes in phosphate-buffered saline solution or lysozyme solution was investigated as a function of the GPSM concentration.
URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-34249091650&partnerID=40&md5=51e1b69bd7dc1b4c23b022e4ec338e8a