Buildup of gold nanoparticle multilayer thin films based on the covalent-bonding interaction between boronic acids and polyols.
A novel method for the fabrication of gold nanoparticle multilayer films based on the covalent-bonding interaction between boronic acid and polyols, poly(vinyl alcohol) (PVA), was developed. The multilayer buildup was monitored by UV-vis absorbance spectroscopy, which showed a linear increase of the film absorbance with the number of adsorbed Au layers and indicated the stepwise and uniform assembling process. The atomic force microscopy (AFM) image showed that a compact gold multilayer thin film was successfully assembled. The residual boronic acid group on the surface of thin film could incorporate glycosylated-protein horseradish peroxidase (HRP), and good catalytic activity for H2O2 could be observed.
Ma
Ying
Y
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
Qian
Lei
L
Huang
Haizhen
H
Yang
Xiurong
X
D001897:Boronic Acids / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D008567:Membranes, Artificial; D018625:Microscopy, Atomic Force; D008961:Models, Structural; D015394:Molecular Structure; D053758:Nanoparticles / Q000737:chemistry*; D011142:Polyvinyl Alcohol / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013499:Surface Properties
D001897:Boronic Acids; D008567:Membranes, Artificial; D006046:Gold; D011142:Polyvinyl Alcohol; D006861:Hydrogen Peroxide