Catalyst-Free Crosslinking Modification of Nata-de-Coco-Based Bacterial Cellulose Nanofibres Using Citric Acid for Biomedical Applications
| Autor: | Mohamed Nainar Mohamed Ansari, Abdul Halim Mohd Yusof, Mohammed Ahmad Wsoo, Ahmad Mohammed Gumel, Nadirul Hasraf Mat Nayan, Mohd Helmi Sani, Muhammad Hanif Ramlee, Shafinaz Shahir, Saiful Izwan Abd Razak, Nurliyana Ahmad Zawawi, Rabiu Salihu |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Absorption of water
Materials science Polymers and Plastics Biocompatibility biomedicine Organic chemistry macromolecular substances nata-de-coco Article chemistry.chemical_compound Crystallinity QD241-441 catalyst-free Ultimate tensile strength medicine Thermal stability crosslinking bacterial cellulose General Chemistry citric acid chemistry Chemical engineering Bacterial cellulose Swelling medicine.symptom Citric acid |
| Zdroj: | Polymers Volume 13 Issue 17 Polymers, Vol 13, Iss 2966, p 2966 (2021) |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym13172966 |
| Popis: | Bacterial cellulose (BC) has gained attention among researchers in materials science and bio-medicine due to its fascinating properties. However, BC’s fibre collapse phenomenon (i.e., its inability to reabsorb water after dehydration) is one of the drawbacks that limit its potential. To overcome this, a catalyst-free thermal crosslinking reaction was employed to modify BC using citric acid (CA) without compromising its biocompatibility. FTIR, XRD, SEM/EDX, TGA, and tensile analysis were carried out to evaluate the properties of the modified BC (MBC). The results confirm the fibre crosslinking phenomenon and the improvement of some properties that could be advantageous for various applications. The modified nanofibre displayed an improved crystallinity and thermal stability with increased water absorption/swelling and tensile modulus. The MBC reported here can be used for wound dressings and tissue scaffolding. |
| Databáze: | OpenAIRE |
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