title: Adsorption of nucleic acid bases and amino acids on single-walled carbon and boron nitride nanotubes: a first-principles study.
abstract: We study the adsorptions of nucleic acid bases adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U) and four amino acids phenylalanine, tyrosine, tryptophan, alanine on the single-walled carbon nanotubes (SWCNTs) and boron nitride nanotubes (SWBNNTs) by using density functional theory. We find that the aromatic content plays a critical role in the adsorption. The adsorptions of nucleic acid bases and amino acids on the (7, 7) SWBNNT are stronger than those on the (7, 7) SWCNT. Oxidative treatment of SWCNTs favors the adsorption of biomolecules on nanotubes.
authors.affiliation: State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, PR China.
authors.forename: Jiaxin
authors.initials: J
authors.lastname: Zheng
authors.forename: Wei
authors.initials: W
authors.lastname: Song
authors.forename: Lu
authors.initials: L
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Lu
authors.forename: Guangfu
authors.initials: G
authors.lastname: Luo
authors.forename: Jing
authors.initials: J
authors.lastname: Zhou
authors.forename: Rui
authors.initials: R
authors.lastname: Qin
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.forename: Zhengxiang
authors.initials: Z
authors.lastname: Gao
authors.forename: Lin
authors.initials: L
authors.lastname: Lai
authors.forename: Guangping
authors.initials: G
authors.lastname: Li
authors.forename: Wai Ning
authors.initials: WN
authors.lastname: Mei