An Antibody-Immobilized Silica Inverse Opal Nanostructure for Label-Free Optical Biosensors.
An Antibody-Immobilized Silica Inverse Opal Nanostructure for Label-Free Optical Biosensors.
复制标题
DOI:
10.3390/s18010307
复制
发表时间:
2018-01-20
期刊:
影响因子:
--
通讯作者:
Jeong J
中科院分区:
文献类型:
--
作者:
Lee WS;Kang T;Kim SH;Jeong J
Three-dimensional SiO2-based inverse opal (SiO2-IO) nanostructures were prepared for use as biosensors. SiO2-IO was fabricated by vertical deposition and calcination processes. Antibodies were immobilized on the surface of SiO2-IO using 3-aminopropyl trimethoxysilane (APTMS), a succinimidyl-[(N-maleimidopropionamido)-tetraethyleneglycol] ester (NHS-PEG4-maleimide) cross-linker, and protein G. The highly accessible surface and porous structure of SiO2-IO were beneficial for capturing influenza viruses on the antibody-immobilized surfaces. Moreover, as the binding leads to the redshift of the reflectance peak, the influenza virus could be detected by simply monitoring the change in the reflectance spectrum without labeling. SiO2-IO showed high sensitivity in the range of 103–105 plaque forming unit (PFU) and high specificity to the influenza A (H1N1) virus. Due to its structural and optical properties, SiO2-IO is a promising material for the detection of the influenza virus. Our study provides a generalized sensing platform for biohazards as various sensing strategies can be employed through the surface functionalization of three-dimensional nanostructures.
登录
查看更多内容
影响因子:
64.8
作者:
Man, WN;Megens, M;Chaikin, PM
通讯作者:
Chaikin, PM
影响因子:
1.7
作者:
Jaksa, G.;Stefane, B.;Kovac, J.
通讯作者:
Kovac, J.
影响因子:
11
作者:
Estevez, M-Carmen;Alvarez, Mar;Lechuga, Laura M.
通讯作者:
Lechuga, Laura M.
影响因子:
6.2
作者:
Li, Jianlin;Zhao, Xiangwei;Lu, Zuhong
通讯作者:
Lu, Zuhong
影响因子:
16.6
作者:
Couturier, Jean-Philippe;Suetterlin, Martin;Wischerhoff, Erik
通讯作者:
Wischerhoff, Erik