Open AccessElectrokinetic microchip‐based sample loading for surface plasmon resonance detection
Author(s) -
Chen Xing,
Zhang LuLu,
Cai Haoyuan,
Li Hui,
Sun Jianhai,
Cui Dafu
Publication year - 2013
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2012.0697
Subject(s) - electrokinetic phenomena , surface plasmon resonance , microfluidics , materials science , surface plasmon , nanotechnology , localized surface plasmon , optoelectronics , analytical chemistry (journal) , plasmon , chemistry , nanoparticle , chromatography
In this reported work, a microfluidic‐based fluid electrokinetic force has been used for surface plasmon resonance or surface plasmon resonance image (SPRI) detection. In this device, a modified rectangular microarray of Au instead of previous reported square or circular gold segments was designed and microfabricated with gold segment geometries and characterised by surface morphology studies. A voltage drop of maximal 400 V/cm was applied without gold erosion to drive fluorescein isothiocyanate isomer I in a high‐conductivity medium on the bare gold surface layer, enabling SPRI detection.