title: Facile construction of nanofibers as a functional template for surface boron coordination reaction.
abstract: A facile strategy to perform the boron coordination reaction on a template of nanofibers is developed. Peptides with phenylboronic acid tails (peptidyl boronic acids) are designed and prepared as building blocks that can self-assemble into nanofibers. After the addition of vicinal diol structural motifs to the self-assembling system, matrix-assisted laser desorption-ionization time-of-flight mass spectrometry indicates that the boron coordination reaction occurs on the template of nanofibers, which results in the increase of the width and roughness of the nanofibers as demonstrated by transmission electron microscopy and atomic force microscopy measurements. Because the surface-bound vicinal diol structural motifs have an ability to form hydrogen bonds with the peptide segments on the nanofibers, which restrain and disturb the hydrogen-bonding interaction among the nanofibers, the network structure formed based on the entanglement of nanofibers via hydrogen-bonding interaction is destroyed, which leads to a gel-sol transition. The novel concept of post-self-assembly modification demonstrated here could lead to a new technique for using self-assembled nanostructures in the emerging fields of nanoscience and nanotechnology.
authors: Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China.
authors: Xiao-Ding
authors: XD
authors: Xu
authors: Yan-Feng
authors: YF
authors: Chu
authors: Chang-Sheng
authors: CS
authors: Chen
authors: Jing-Xiao
authors: JX
authors: Chen
authors: Si-Xue
authors: SX
authors: Cheng
authors: Xian-Zheng
authors: XZ
authors: Zhang
authors: Ren-Xi
authors: RX
authors: Zhuo
mesh_terms: D001895:Boron / Q000737:chemistry*; D006860:Hydrogen Bonding; D057139:Nanofibers / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D001895:Boron