Fabrication and Characterization of Gelatin/Chitosan Hydrogel Membranes

Abstract

The gelatin/chitosan (GEL/CTS, GC) membranes have been fabricated well by a simple in-situ method. The as-prepared GC membranes were characterized by morphological surface (scanning electron microscopy, SEM), chemical (Fourier-transform infrared spectroscopy, FT-IR), crystallinity (X-ray diffraction, XRD), thermal (thermal gravimetric analysis, TGA), mechanical (tensile test), hydrophilic (water contact angle), and swelling properties to elucidate the changes in their chemical structures and morphologies. The morphological structure of the GC membranes was found to be very smooth, non-rough and homogeneous. The FT-IR and XRD studies manifest that the GC membranes have good interaction and compatibility between GEL and CTS in the hydrogel mixture. The prepared GC membranes also obtain better thermal, mechanical and swelling properties comparing to the raw CTS molecule. These results suggest that the nontoxic GC membrane can become a preferred hydrogel membrane in the field of wound dressing or tissue-engineering applications.

The Physicochemical and Antimicrobial Properties of Silver/Gold Nanoparticles Obtained by “Green Synthesis” from Willow Bark and Their Formulations as Potential Innovative Pharmaceutical Substances

“…The network distortion can also be confirmed by changing the position of the peak’s characteristic of C-H bonds (up to 3077, 2919 and 2873 ). The interaction between the silver nanoparticles and the components of the hydrogel is supported by the shift of the bands that can be associated with the C–O bonds from the carboxyl group (up to 1398, 1197, 1156 and 1030 ), as well as by the lack of spectral bands below 900 [ 37 , 40 , 41 , 42 , 43 , 44 ].…”

Characterization of Paper-Like Material Prepared from Chitosan/Graphene Oxide Composite

“…Besides, the various peaks have also appeared at 1159.87 cm -1 (C−O−C) and 897.04 cm -1 regarding the available saccharide structure of CTS (5,(28)(29)(30). In particular, the remaining characteristic peaks at 1652.32 − 1598.32 cm -1 have corresponded to −NH stretching/bending vibrations in −NH2 groups (5,27). While the pure GO spectra has revealed the peaks at 1734.25, 1632.36, 1400.01, 1229.96 and 1053.03 cm -1 corresponding to C=O carboxylic group, C=C alkenyl group, −OH deformation, C−O alkoxy group, and epoxy C−O−C stretching, respectively (31-33) (Fig.…”

“…In the pure CTS spectra (Fig. 5A), the characteristic peaks of symmetric/asymmetric −CH deformation, symmetric/asymmetric C−C−O stretching and C−C bending are observed at 1421.90 -1383.03 cm -1 , 1081.92 -1029.02 cm -1 and 663.42 -516.85 cm -1 , respectively (5,27,28). Besides, the various peaks have also appeared at 1159.87 cm -1 (C−O−C) and 897.04 cm -1 regarding the available saccharide structure of CTS (5,(28)(29)(30).…”

“…Polymeric systems, as is well known, have been widely used in various research fields and practical applications (1)(2)(3)(4)(5). At same time, the most remarkable factors of a polymeric material were almost entirely physical, chemical, and interface properties.…”

“…: protective layers, super-capacitors/electrical batteries, chemical /physical filters, molecular storage, adhesive layers, etc.) (5)(6)(7)(8)(9)(10). Chitosan (CTS) is considered to be a typical biomacromolecule/poly-cationic compound with excellent properties (i.e.…”