Biocompatible microcrystalline cellulose particles from cotton wool and magnetization via a simple in situ co-precipitation method. (15th August 2017)

• Record Type: Journal Article
• Authors: Rashid, Mehnaz; Gafur, Mohammad Abdul; Sharafat, Mostafa Kaiyum; Minami, Hideto; Miah, Mohd Abdul Jalil; Ahmad, Hasan
• Is Part Of: Carbohydrate polymers. Volume 170(2017)
• Page Start: 72
• Page End: 79
• Publication Date: 2017-08-15
• Subjects: Cotton -- Acid hydrolysis -- Microcrystalline cellulose -- Biodegradable -- Magnetic nanocomposite; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2017.04.059
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Microcrystalline cellulose particles were produced via acid hydrolysis. In situ magnetization of microcrystalline cellulose particles. Magnetic microcrystalline cellulose nanocomposite particles were prepared. Good interaction between microcrystalline cellulose and magnetite particles. Abstract: This investigation describes the preparation of magnetically doped degradable microcrystalline cellulose (MCC) nanocomposite particles with application potential in biotechnology, solid support for biomolecule/water purification, oil recovery from water and beyond. MCC was first extracted from cotton wool, the most abundant biocompatible polymer, by sulfuric acid hydrolysis and the effect of acid strength was examined. The size of the elongated fiber structure was reduced with increasing acid strength. MCC particles extracted by treatment with 70% sulfuric acid were used to prepare magnetic MCC nanocomposite particles. The nanocomposite particles named as MCC/Fe3 O4 were prepared via in situ co-precipitation of Fe +3 /Fe +2 from their alkaline solution. The precipitated Fe3 O4 nanoparticles are expected to be bonded with MCC particles via hydrogen bonding. The nanocomposite dispersion was colloidally stable and the particles responded when external magnetic field was applied. It was possible to control the magnetic property by regulating the content of iron oxide.