Measurements of refractive index change due to positive ions using a surface plasmon resonance sensor

A 44-pass fiber optic surface plasmon resonance (SPR) sensor coupled with a field-assist capability for measurement of refractive index change due to positive and negative ions is shown. The field-assist feature forces ions to the SPR surface, causing the SPR signal response to change which reflects...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2009-12, Vol.143 (1), p.381-386
Main Authors: Ko, Hyungduk, Kameoka, Jun, Su, Chin B.
Format: Article
Language:English
Subjects:
Fiber optic SPR sensor
Multi-pass SPR sensor
Surface plasmon resonance
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A 44-pass fiber optic surface plasmon resonance (SPR) sensor coupled with a field-assist capability for measurement of refractive index change due to positive and negative ions is shown. The field-assist feature forces ions to the SPR surface, causing the SPR signal response to change which reflects a decrease or increase in refractive index depending on whether positive or negative ions are being attracted to the surface. This technique offers the potential for the sensitive detection of cations and anions in a solution.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2009.09.016