Sensors 2010, 10(10), 9397-9406; doi:10.3390/s101009397
Article

E-Beam Patterned Gold Nanodot Arrays on Optical Fiber Tips for Localized Surface Plasmon Resonance Biochemical Sensing

1 Nano and Micro Device Center, University of Alabama in Huntsville, Huntsville, AL 35899, USA 2 Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, AL 35899, USA
* Author to whom correspondence should be addressed.
Received: 1 September 2010; in revised form: 30 September 2010 / Accepted: 9 October 2010 / Published: 20 October 2010
(This article belongs to the Section Chemical Sensors)
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Abstract: Electron beam lithography (EBL) was used to directly pattern periodic gold nanodot arrays on optical fiber tips. Localized surface plasmon resonance of the E-beam patterned gold nanodot arrays on optical fiber tips was utilized for biochemical sensing. The advantage of the optical fiber based localized surface plasmon resonance (LSPR) sensors is the convenience to work with and work in harsh environments. An optical fiber tip LSPR refractive index sensor of 196 nm per refractive index unit (RIU) sensitivity has been demonstrated. The affinity sensing property of the fiber tip sensor was demonstrated using biotin/streptavidin as the receptor/analyte. The detection limit for streptavidin was determined to be 6 pM.
Keywords: localized surface plasmon resonance sensor; nanofabrication; fiber optic biosensor

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MDPI and ACS Style

Lin, Y.; Zou, Y.; Mo, Y.; Guo, J.; Lindquist, R.G. E-Beam Patterned Gold Nanodot Arrays on Optical Fiber Tips for Localized Surface Plasmon Resonance Biochemical Sensing. Sensors 2010, 10, 9397-9406.

AMA Style

Lin Y, Zou Y, Mo Y, Guo J, Lindquist RG. E-Beam Patterned Gold Nanodot Arrays on Optical Fiber Tips for Localized Surface Plasmon Resonance Biochemical Sensing. Sensors. 2010; 10(10):9397-9406.

Chicago/Turabian Style

Lin, Yongbin; Zou, Yang; Mo, Yuanyao; Guo, Junpeng; Lindquist, Robert G. 2010. "E-Beam Patterned Gold Nanodot Arrays on Optical Fiber Tips for Localized Surface Plasmon Resonance Biochemical Sensing." Sensors 10, no. 10: 9397-9406.

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