Thermal Properties of Gelatin and Chitosan

Mullah, Mehraj Fatema; Joseph, Linu; Arfat, Yasir Ali; Ahmed, Jasim

doi:10.1002/9781118935682.ch13

Cited by 5 publications

(4 citation statements)

References 80 publications

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“…Ji and Shi () suggested that the steam sterilization induce the molecular interaction between the amino groups of chitosan and gelatin and either primary hydroxyl groups or the carbonyl under high temperature, increasing the onset decomposition temperature. Finally, the exothermic peaks from the third event corresponded to the decomposition of functional groups and thermal degradation in the polymer structure of sterilized samples (Guinesi & Cavalheiro, ; Mullah, Joseph, Arfat, & Ahmed, ).…”

Section: Discussionmentioning

confidence: 99%

Sterilized chitosan‐based composite hydrogels: Physicochemical characterization and in vitro cytotoxicity

Rodríguez‐Rodríguez¹,

Velasquillo‐Martínez²,

Knauth

et al. 2019

J Biomedical Materials Res

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Gelatin/chitosan/polyvinyl alcohol hydrogels were fabricated at different polymer ratios using the freeze-drying and sterilized by steam sterilization. The thermal stability, chemical structure, morphology, surface area, mechanical properties, and biocompatibility of hydrogels were evaluated by simultaneous thermal analysis, Fourier transform infrared spectroscopy, X-ray diffraction, confocal microscopy, adsorption/desorption of nitrogen, rheometry, and 3-4,[5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide cell viability assay (MTT assay), respectively. The samples showed a decomposition onset temperature below 253.3 ± 4.8 C, a semicrystalline nature, and a highly porous structure. Hydrogels reached the maximum water uptake in phosphate-buffered saline after 80 min, showing values from nine to twelve times their dry mass. Also, hydrogels exhibiting a solid-like behavior ranging from 2,567 ± 467 to 48,705 ± 2,453 Pa at 0.1 rad/s (low frequency). The sterilized hydrogels showed low cytotoxicity (cell viability > 70%) to the HT29-MTX-E12 cell line. Sterilized hydrogels by steam sterilization can be good candidates as scaffolds for tissue engineering applications. K E Y W O R D Schitosan, hydrogels, porosity, swelling behavior, viscoelastic properties

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Section: Discussionmentioning

confidence: 99%

Sterilized chitosan‐based composite hydrogels: Physicochemical characterization and in vitro cytotoxicity

Rodríguez‐Rodríguez¹,

Velasquillo‐Martínez²,

Knauth

et al. 2019

J Biomedical Materials Res

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“…The TGA curves revealed distinct weight loss patterns associated with the degradation of the aerogel components. Pure chitosan exhibited a degradation onset at approximately 275°C, while pure gelatin started to decompose around 250°C, which present a typical behavior of chitosan aerogel 30 . chitosan/gelatin aerogel samples displayed thermal profiles reflecting a combination of the individual components' decomposition characteristics.…”

Section: Resultsmentioning

confidence: 92%

“…Pure chitosan exhibited a degradation onset at approximately 275 C, while pure gelatin started to decompose around 250 C, which present a typical behavior of chitosan aerogel. 30 chitosan/gelatin aerogel samples displayed thermal profiles reflecting a combination of the individual components' decomposition characteristics. The DTG curves provided insights into the degradation rates, with prominent peaks corresponding to specific decomposition stages.…”

Section: Thermal Stabilitymentioning

confidence: 99%

Exploring the properties of gelatin/chitosan bioaerogel scaffolds: Toward ultra‐light and highly porous materials

Saleh,

Yahya,

Ahmad

et al. 2024

Polymer Engineering & Sci

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This study investigates the development and characterization of chitosan, gelatin, and chitosan/gelatin (Chi/Gel) bioaerogel composites through a facile and eco‐friendly approach. The goal is to optimize their structural and functional properties for potential environmental and biomedical applications. Direct freezing and lyophilization approach were used to prepare the aerogels, the focus was on investigating the effects of blending ratios on the density, porosity, surface area, and water absorption capabilities of the aerogels. The results show that Chi/Gel 60/40 composition achieved an optimal balance of structural robustness and functional performance, characterized by a moderate density of 74.2 mg/cm3, the highest porosity among the samples at 93.5%, an impressive surface area of 184.8 m2/g, and a water absorption capacity of 28.8 g/g. These results suggest that the synergistic effect of chitosan and gelatin at specific ratios significantly enhances the overall properties of the material. Our findings suggest that Chi/Gel bioaerogels, especially the 60/40 composite, hold great promise for diverse applications.Highlights All Gelatin/Chitosan bioaerogels exhibited high porosity and low density. The Chi/Gel 60/40 mix achieved the highest porosity and surface area. Highest water adsorption was observed in the Chi/Gel 60/40 composite. Synergistic effects enhanced properties of the Gelatin/Chitosan scaffolds.

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“…Biobased polymers are the most promising materials that are partially or completely biodegradable and synthesized from plants or microorganisms through metabolic or biochemical engineering processes. 14 In addition, according to their origin, biobased polymers are classified into 3 types; these are (1) extracted from biomass: (I) Polysaccharides (starch, 15 cellulose, 16 chitosan, 17 carrageenan, 18 pectin, 19 and alginate 20 ), (II) Proteins (gelatin, 21 collagen, 22 zein, 23 and keratin 22 ) and (III) Lipids 22 ; (2) synthesized from biobased monomers (PLA 24 and polyesters); and (3) attained from microorganisms (PHAs 25 and bacterial cellulose). 26 All these materials are abundant, renewable, and ecological.…”

Section: Introductionmentioning

confidence: 99%

A review of biodegradable thermoplastic starches, their blends and composites: recent developments and opportunities for single-use plastic packaging alternatives

et al. 2022

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Thermal Properties of Gelatin and Chitosan

Cited by 5 publications

References 80 publications

Sterilized chitosan‐based composite hydrogels: Physicochemical characterization and in vitro cytotoxicity

Sterilized chitosan‐based composite hydrogels: Physicochemical characterization and in vitro cytotoxicity

Exploring the properties of gelatin/chitosan bioaerogel scaffolds: Toward ultra‐light and highly porous materials

A review of biodegradable thermoplastic starches, their blends and composites: recent developments and opportunities for single-use plastic packaging alternatives

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