Open AccessFacile Synthesis of Au Nanoparticles Supported on TiO2 Inverse Opals with Biosensor
Author(s) -
Zhe Chen,
Ming Fu,
Zheli Wu,
Caixia Li,
Jingwen Jiang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1622/1/012066
Subject(s) - biomolecule , biosensor , colloidal gold , nanoparticle , inverse , materials science , nanotechnology , avidin , detection limit , chemistry , chromatography , mathematics , biotinylation , biochemistry , geometry
In this paper, a three-dimensional porous structure of TiO 2 inverse opals loaded the large area gold nanoparticles (AuNPs) was used as an advanced material for detection of L-cysteine and Avidin molecule concentrations. We think that functionalized gold nanoparticles combined with TiO 2 inverse opals of low cost can couple out a characteristic reflection peak. After biomolecules were successively linked to the gold particles supported on TiO 2 inverse opals, it is found that the peak position linearly red shifted with a change of avidin concentration. The lower limit of detection concentration can be up to 2x10 −7 M. This maybe provide a kind of biosensor for detecting biomolecules in the future.