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Cited by 246 publications
(134 citation statements)
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“…The FTIR-ATR spectrum of chitosan shows a weak band at 2871 cm −1 attributed to the C H stretching and the absorption band due to the carbonyl group stretching of the secondary amide (C O-NHR) appears at 1651 cm −1 indicating that chitosan is not totally deacetylated in accordance with the results obtained in the potentiometric titration [39,67,73]. The peaks at 1585, 1421 and 1321 cm −1 correspond to the N H bending vibration (amine I band), N H stretching of the amide and ether bonds and the amide III band, respectively [39,67,73]. The peaks at 1149, 1057, 1025 and 893 cm −1 correspond to the bridge oxygen (C O C) stretching bands [73].…”
Section: Characterization Of the Polymer-polymer Interactionssupporting
confidence: 82%
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“…The FTIR-ATR spectrum of chitosan shows a weak band at 2871 cm −1 attributed to the C H stretching and the absorption band due to the carbonyl group stretching of the secondary amide (C O-NHR) appears at 1651 cm −1 indicating that chitosan is not totally deacetylated in accordance with the results obtained in the potentiometric titration [39,67,73]. The peaks at 1585, 1421 and 1321 cm −1 correspond to the N H bending vibration (amine I band), N H stretching of the amide and ether bonds and the amide III band, respectively [39,67,73]. The peaks at 1149, 1057, 1025 and 893 cm −1 correspond to the bridge oxygen (C O C) stretching bands [73].…”
Section: Characterization Of the Polymer-polymer Interactionssupporting
confidence: 82%
“…Pure chitosan exhibits one endothermic peak at 112 • C associated to the evaporation of absorbed water, a glass transition at 243 • C and an exothermic peak at about 311 • C ascribed to the polymer degradation, including saccharide rings dehydration, depolymerization and decomposition of deacetylated and acetylated chitosan units [48,66]. These peaks have been reported in several other studies [26,67].…”
Section: Characterization Of the Polymer-polymer Interactionssupporting
confidence: 59%
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“…Some distinct peaks of chitosan disappeared in the chitosan-alginate spectra due to its low concentration in the polyelectrolyte mixture. Sankalia et al (2007) reported that the disappearance of some peaks might be due to the presence of multi-interactions of polymers like electrostatic and hydrogen bonding.…”
Section: Fourier Transform Infrared Spectroscopymentioning
confidence: 99%
“…Chitosan was used to reinforce the alginate microcapsule. 20 The alginate beads were washed three times with HEPES solution (13 mM), then cultured in DMEM supplemented with 10% fetal bovine serum in a 5% CO 2 incubator. cells and cell culture U87MG glioma cells and 293T cells were purchased from the American Type Culture Collection (Manassas, VA, USA).…”
Section: Preparation Of Alginate Beadsmentioning
confidence: 99%