title: High quality fluorescent cellulose nanofibers from endemic rice husk: isolation and characterization.
abstract: Cellulose nanofibers (CNFs) with high crystallinity and purity were isolated from two endemic rice husk varieties using a hydrothermal approach followed by acid-alkali treatments and mechanical disruption. The CNFs isolated had a mean diameter of ∼ 35 nm. The TGA and DTG profiles showed good thermostability of the CNFs. The CNFs also showed a prominent photoluminescence peak at 404 nm with high quantum yield (∼ 58%). This is the first report on the native fluorescence property of nanocellulose in absence of any conjugated fluorescence molecule/dye. The CNFs further demonstrated appreciable hemocompatibility in the hemolysis test, exhibiting its potential for biomedical applications.
authors.affiliation: Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, 784028, India. Electronic address: ekalita@tezu.ernet.in.
authors.forename: E
authors.initials: E
authors.lastname: Kalita
authors.affiliation: Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, 784028, India.
authors.forename: B K
authors.initials: BK
authors.lastname: Nath
authors.affiliation: Department of Physics, Tezpur University, Tezpur, Assam, 784028, India.
authors.forename: P
authors.initials: P
authors.lastname: Deb
authors.affiliation: Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, 784028, India.
authors.forename: F
authors.initials: F
authors.lastname: Agan
authors.affiliation: Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, 784028, India.
authors.forename: Md R
authors.initials: MR
authors.lastname: Islam
authors.affiliation: Department of Physics, Tezpur University, Tezpur, Assam, 784028, India.
authors.forename: K
authors.initials: K
authors.lastname: Saikia
mesh_terms: D000818:Animals; D002482:Cellulose / Q000737:chemistry* / Q000302:isolation & purification; D004912:Erythrocytes / Q000166:cytology*; D005453:Fluorescence; D006041:Goats; D006461:Hemolysis; D008163:Luminescent Measurements / Q000379:methods*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D057139:Nanofibers / Q000737:chemistry*; D012275:Oryza / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D002482:Cellulose
keywords: Biocompatibility; Cellulose nanofibers (CNFs); Fluorescence; Nanocellulose; Rice-husk; Thermal degradation