The effect of surfactants modification on nanocrystalline cellulose for paclitaxel loading and release study

The Nanocrystalline cellulose (NCC) was prepared from filter paper by acid hydrolysis process. The modification of NCC with cationic, anionic, and nonionic surfactant did not have a tremendous effect on the chemical structure of material based on the characterization of XRD and FTIR. The modified NCCs were employed as a drug carrier for paclitaxel (PTX). Increasing concentration of ionic surfactants can enhance the loading of the hydrophobic drug, while the opposite trend was observed for nonionic surfactant modified nanocrystals. The attachment of surfactant toward the particle was a more likely physical aggregation of micelle on the surface of nanocrystals. Larger particle size was observed after the modification of nanocrystal cellulose. The fitting of Higuchi and sigmoidal models were applied in the release profile to investigate the kinetic release mechanism of paclitaxel at pH 5.8 and 7.4. Cell viability was determined to check the biocompatibility of the materials toward mouse osteoblast cells 7F2 using MIT assay. Toxic behavior was not observed for NCC, while CTAB was completely not compatible with cells. (C) 2019 Elsevier B.V. All rights reserved.