Majid SR, Arof AK (2008) FTIR studies of chitosan-orthophosphoric acid-ammonium nitrate-aluminosilicate polymer electrolyte. Mol Cryst Liquid Cryst 484:483–492Arof, A.K., Majid, S.R.: FTIR studies of chitosan-orthophos- phoric acid-ammonium nitrate-aluminosilicate polymer. Mol. Cryst. Liq. ...
The FTIR spectra of chitosan, collagen, hydroxyapatite are shown in Fig.3. The characteristic absorption bands of chitosan are observed: the vibration band at 3266 cm−1corresponding to the N–H stretching and –OH attributed to inter and intra-molecular hydrogen bonding, an absorption band a...
Synthesized Nanocomposites were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) studies, which were all used to determine the structural, and functional properties of the prepared nanocomposite hydrogels. Materials and methods...
(CrI) of chitosans were also determined respectively.The influence of N-acetylation on DD and CrI was also discussed,and it could be found from FTIR that the N-acetylation reaction became difficult for the remaining amino group in chitosan molecule as the reaction proceeded.XRD also indicated ...
(SEM) and Fourier transform infrared (FTIR) spectroscopy. This bioelectrode provided a stable current response of 3.5 ± 0.02 mAcm−2in 20 mM glucose. The coverage of enzyme on 0.07 cm2area of electrode modified with CHI@rGO-PAni/Frt was calculated to be 3.80 × 10−...
(Hillsboro, OR, USA). FTIR date were obtained on Thermo Fisher Scientific (USA). TEM and Energy dispersiveX-ray spectroscopy (EDS) data were obtained on FEI Talos F200X (USA). The critical micelle concentration (CMC) was determined by F98 fluorescence spectrophotometer (Lengguang Technology, ...
3.1. FTIR spectroscopy The formation of the CH-RG PEC was probed by FT-IR spectroscopy in the solid state of the freeze-dried material comprised by CHHRG nanoparticles. This allowed to probe any chemical modification of CH or RG during the complexation process. The FT-IR spectrum for CH (...
FTIR spectra were recorded at a spectral resolution of 4 cm−1 in the range (400–4000) cm−1. 2.5. Water solubility, equilibrium moisture content and water vapor permeability Water solubility of the samples was confirmed using the gravimetric method of immersion in a determined volume of ...
Functionalization of the chitosan with cyclodextrin was characterized using nuclear magnetic resonance (NMR), X-ray diffractometry (XRD), differential scanning calorimetry (DSC), thermogravimetry (TG), and infrared spectroscopy (FTIR). In the NMR analyses, signals for gCS between δ 4.223 and 3.450 ...
SAIF, IIT Madras, is acknowledged for FTIR and Raman measurements. Authors would like to thank Mr. Viswanathan, Vellore Institute of Technology, and Mr. K.C. Dharani balaji IIT Madras, for HRTEM and elemental mapping measurements. Author information Authors and Affiliations Department of Nuclear ...