TFBG-SPR DNA-Biosensor for Renewable Ultra-Trace Detection of Mercury Ions
Journal of Lightwave Technology(2021)
Abstract
In this article, a tilted fiber Bragg grating (TFBG) plasmonic sensor based on thymine (T) - Hg - thymine (T) (T-Hg-T) base asymmetric pairing and Au nanoparticles (AuNPs), which can be used for highly sensitive and selective ultra-low-concentration Hg2+ detection, has been demonstrated. As is known, TFBG can provide an effective mean to easily excite the surface plasmon resonance (SPR) phenomenon...
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Key words
DNA,Ions,Mercury (metals),Optical fiber sensors,Gold,Optical surface waves,Probes
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