Scanning Surface Plasmon Microscope for Sensing Lipid Array and Au Film Defect

2017 ◽  
Vol 870 ◽  
pp. 21-26
Author(s):  
Shih Chung Wei ◽  
Pei Tung Yang ◽  
Frank X. Gu ◽  
Kung Bin Sung ◽  
Chii Wann Lin

We demonstrated a scanning radially-polarized surface plasmon microscopy (SSPM) with submicron lateral resolution and high refractive index sensitivity. According to the captured images, SSPM could be used to verify the quality of deposited Au film and Au structure on surface plasmon sensing chip. The defect on the SPR chip, which disturbed the plasmonic wave around the focal point, could be easily detected by our system. Moreover, the application of SSPM in imaging lipid array was showed in this article. The 1, 2-Dioleoyl-sn-glycero-3-phosphocholine (DOPC) array was made by dip-pen nanolithography. The results indicated that SSPM system could be used in comparing the thickness of DOPC array. Because of the high sensitivity and high spatial resolution of the system, we expected the SSPM to be used in measuring the properties of nanogold array structures and apply to digital-array biosensors in nanoscale.

RSC Advances ◽  
2018 ◽  
Vol 8 (61) ◽  
pp. 35005-35013 ◽  
Author(s):  
Pengfei Cao ◽  
Huizhen Chen ◽  
Hailong Zhang ◽  
Lin Cheng ◽  
Tiaoming Niu

A high refractive index sensitivity of Au@Cu2−xS core–shell nanorods working in the near-infrared is theoretically demonstrated.


2012 ◽  
Vol 20 (9) ◽  
pp. 10180 ◽  
Author(s):  
Lipeng Sun ◽  
Jie Li ◽  
Yanzhen Tan ◽  
Xiang Shen ◽  
Xiaodong Xie ◽  
...  

2005 ◽  
Vol 30 (19) ◽  
pp. 2536 ◽  
Author(s):  
Andrea Cusano ◽  
Agostino Iadicicco ◽  
Pierluigi Pilla ◽  
Luigi Contessa ◽  
Stefania Campopiano ◽  
...  

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