title: Noncovalent functionalization of disentangled boron nitride nanotubes with flavin mononucleotides for strong and stable visible-light emission in aqueous solution.
abstract: Strong and stable visible-light-emitting boron nitride nanotube (BNNT)/biomolecule nanohybrids were successfully fabricated via noncovalent functionalization of BNNTs with flavin mononucleotides (FMN). Atomic force microscopy showed excellent dispersion of the nanohybrids in aqueous solution. Infrared absorption spectroscopy revealed strong π-π stacking interactions between FMN and BNNT sidewalls. Importantly, the fluorescence spectra revealed that the nanohybrids were highly fluorescent in the visible-light spectral range. Moreover, this fluorescence had unique pH-dependent and thermally stable properties. These nanohybrids might be used to construct novel fluorescence imaging probes that function over a wide pH and temperature range.
authors.affiliation: Department of Advanced Interdisciplinary Studies, Graduate School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8904, Japan.
authors.forename: Zhenghong
authors.initials: Z
authors.lastname: Gao
authors.forename: Chunyi
authors.initials: C
authors.lastname: Zhi
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg
authors.forename: Takeshi
authors.initials: T
authors.lastname: Serizawa
mesh_terms: D001896:Boron Compounds / Q000032:analysis / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D005486:Flavin Mononucleotide / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000032:analysis / Q000138:chemical synthesis*; D008422:Materials Testing; D036103:Nanotechnology / Q000379:methods; D043942:Nanotubes / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D012996:Solutions; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014867:Water / Q000737:chemistry
chemical_list: D001896:Boron Compounds; D005456:Fluorescent Dyes; D012996:Solutions; D014867:Water; C017282:boron nitride; D005486:Flavin Mononucleotide