Starch-Leather Waste Gelatin Films Cross-Linked with Glutaraldehyde
Bianca Santinon Scopel,Gian Lucas Pretto,Júlia Isadora Postiglione Corrêa,Camila Baldasso,Aline Dettmer,Ruth Marlene Campomanes Santana +5 more
TLDR
In this study, films produced with starch, CTLW gelatin, commercial gelatin (as a comparative), and their blends were cross-linked with glutaraldehyde, which reduced the crystallinity of the films, impairing the reorganization of gelatin chains into a triple helix structure, which balanced the effect of the higher molecular chain.Abstract:
Gelatin extracted from chromium-tanned leather wastes (CTLW) has a lower molar mass because of the more aggressive extraction process needed to disrupt chromium-collagen bonds when compared to gelatin extracted from the bones, skin, and connective tissues of animals. As a consequence, CTLW gelatin is more hydrophilic, thus it is harder to apply in the production of polymers. To overcome this issue, in this study, films produced with starch, CTLW gelatin, commercial gelatin (as a comparative), and their blends were cross-linked with glutaraldehyde. The cross-linking reduced the crystallinity of the films, impairing the reorganization of gelatin chains into a triple helix structure, which balanced the effect of the higher molecular chain, while not altering the films’ tensile strength. It increased the elongation at break and reduced the solubility and the swelling degree by up to 53% and 69%, respectively. These results stand as a great advance for the practical use of starch-CTLW gelatin films.read more
Citations
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Adsorption of diclofenac sodium by composite beads prepared from tannery wastes-derived gelatin and carbon nanotubes
Cesar Vinicius Toniciolli Rigueto,Marieli Rosseto,Mateus Torres Nazari,Bruna Elisangela Pessini Ostwald,Ingridy Alessandretti,Christian Manera,Jeferson Steffanello Piccin,Aline Dettmer +7 more
TL;DR: In this paper, a composite based on gelatin recovered from chromium tanned leather waste and carbon nanotubes showed an adsorption capacity of around 20.57 µm/g−1.
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Tara Tannin-Cross-Linked, Underwater-Adhesive, Super Self-Healing, and Recyclable Gelatin-Based Conductive Hydrogel as a Strain Sensor
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The effect of cross-linker type on structural, antimicrobial and controlled release properties of fish gelatin-chitosan composite films incorporated with ε-poly-l-lysine.
Zahra Mousavi,Mahmood Naseri,Sedigheh Babaei,Seyed Mohammad Hashem Hosseini,Seyed Shahram Shekarforoush +4 more
TL;DR: In this paper, active antibacterial cross-linked composite films were prepared through incorporating e-poly-l-lysine (e-PLL) into Siberian sturgeon gelatin-chitosan mixture.
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