Publication: Catalyst-free crosslinking modification of nata-de-coco-based bacterial cellulose nanofibres using citric acid for biomedical applications
Date
2021
Authors
Salihu R.
Ansari M.N.M.
Abd Razak S.I.
Ahmad Zawawi N.
Shahir S.
Sani M.H.
Ramlee M.H.
Wsoo M.A.
Yusof A.H.M.
Nayan N.H.M.
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract
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. � 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Description
Biocompatibility; Catalysts; Cellulose; Citric acid; Crosslinking; Crystallinity; Medical applications; Nanofibers; Water absorption; Bacterial cellulose; Biomedical applications; Catalyst-free; SEM/EDX; Thermal crosslinking; Tissue scaffolding; Wound dressings; Scaffolds (biology); Catalysts; Cellulose; Citric Acid; Crystallinity; Surgical Dressings; Water Absorption