00000caa a22000003i 4500 UP-1685594773862409347 Buklod 20210610140002.0 m | | ta 210610s2020 xx r |||| u|eng d (iLib)UPBAG-00040842772 STII-DOST BAG rda eng ARTICLE-3529 Chakraborty, Soma author. Bentonite reinforced Chitosan scaffold effect of bentonite exfoliation on scaffold properties by Soma Chakraborty and Cristine Joy M. Pimentel. 2020. pages 1123-1129 color illustrations 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (pages 1127-1129) Chitosan is under investigation as a biodegradable scaffolding material for tissue engineering. Crosslinked chitosan alone cannot form a self-supporting scaffold; hence, it needs reinforcement. The group reported the fabrication of chitosan scaffolds reinforced by exfoliated (E) and nonexfoliated or pristine (P) bentonite and compared their properties. Scaffolds were fabricated through the freeze-drying technique. Bentonite was exfoliated by allowing it to swell in water for a certain time interval. X-ray powder diffraction (XRD) profile showed that swelling reduced the crystallinity of bentonite. Both types of bentonite dispersed well in the chitosan matrix and imparted structural stability to the scaffolds. Scaffolds had interconnected pores; apparent porosity of scaffold with E-bentonite was higher than of scaffold with P-bentonite. The scaffolds swelled almost 35% in 3 d without losing structural integrity. The scaffolds could be compressed to 50% of their original height. The compression modulus of the scaffold with E-bentonite was higher than that of the P-bentonite scaffold. Bentonite. Chitosan. Reinforcement. Scaffold. Pimentel, Cristine Joy M. author. The Philippine Journal of Science Vol. 149, no. 4, December 2020. Request full-text access via UPB University Library through https://forms.gle/KZjBv7aRtY6jiL5E9 (viewed 10 June 2021) FI UPBAG UPBAG-MAIN ARTICLE-3529 Analytics