Nanoplasmonic Sensing from the Human Vision Perspective
- Peng Chen (6514)
- Xiaohu Liu (588029)
- Garima Goyal (599383)
- Nhung Thi Tran (3356441)
- James Chin Shing Ho (4993109)
- Yi Wang (32470)
- Daniel Aili (8164)
- Bo Liedberg (8170)
DOIAbstract
Localized surface plasmon resonance (LSPR) constitutes a versatile technique for biodetection, exploiting the sensitivity of plasmonic nanostructures to small changes in refractive index. The optical shift in the LSPR band caused by molecular interactions in the vicinity of the nanostructures are typically <5 nm and can readily be detected by a spectrophotometer. Widespread use of LSPR-based sensors require cost-effective devices and would benefit from sensing schemes that enables use of very simple spectrophotometers or even naked-eye detection. This paper describes a new strategy facilitating visualization of minute optical responses in nanoplasmonic bioassays by taking into account the physiology of human color vision. We demonstrate, us...
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