A design optimization study on synthesized nanocrystalline cellulose, evaluation and surface modification as a potential biomaterial for prospective biomedical applications

作者：Ngwabebhoh Fahanwi Asabuwa; Erdem Ahmet; Yildiz Ufuk

来源：International Journal of Biological Macromolecules, 2018, 114: 536-546.

DOI：10.1016/j.ijbiomac.2018.03.155

• Nanocrystalline cellulose
• Yield
• Response surface modelling
• Optimization
• Amination

In the present study, nanocrystalline cellulose (NCC) was prepared via acid hydrolysis and synthesis parameters were optimized via response surface modelling with a determined maximum NCC yield of 43.8%. The optimized NCC sample was subsequently surface modified via epichlorohydrin-mediated amination forming aminated nanocrystalline cellulose (A-NCC) with an amine content calculated as 1500 mu mol/g. The average particle size and zeta potential were determined 100 nm and 325 nm for NCC and A-NCC, respectively. Structural properties were analyzed by FTIR, TEM and XRD techniques. The obtained A-NCC as final product depicted a pKa value of 10.86 +/- 0.07 demonstrating favourable protonation of amine groups at physiological pH allowing the material to be suitable for prospective application in drug delivery and tissue engineering.

• 出版日期2018-7-15