Electric field effects on adsorption/desorption of proteins and colloidal particles on a gold film observed using surface plasmon resonance

2007 ◽  
Vol 394 (2) ◽  
pp. 203-207 ◽  
Author(s):  
R. Morrow ◽  
D.R. McKenzie ◽  
M.M.M. Bilek ◽  
C.L. MacDonald ◽  
M. Stindt ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Electric Field ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Colloidal Particles ◽  
Gold Film ◽  
Electric Field Effects ◽  
Field Effects ◽  
Adsorption Desorption

Influence of surface roughness on surface plasmon resonance phenomenon of gold film

2016 ◽  
Vol 14 (4) ◽  
pp. 042401-42403 ◽  
Author(s):  
Zhitao Yang Zhitao Yang ◽  
Changjian Liu Changjian Liu ◽  
Yachen Gao Yachen Gao ◽  
Jiyu Wang Jiyu Wang ◽  
and Wenlong Yang and Wenlong Yang
Keyword(s):  
Surface Roughness ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Resonance Phenomenon

scholarly journals Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

2019 ◽  
Vol 9 (7) ◽  
pp. 1480 ◽  
Author(s):  
Zhenlin Chen ◽  
Kunlin Han ◽  
Ya-Nan Zhang
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gold Film ◽  
Mercury Ion ◽  
Great Promise ◽  
Water Safety ◽  
Ion Sensor ◽  
Sensitive Film ◽  
Resonance Sensor

This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of mercury ions with a high sensitivity of 0.5586 nm/μM and good specificity and repeatability. Therefore, the reflective SPR fiber mercury ion sensor shows great promise for future applications of environmental monitoring and drinking water safety.

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