Localized surface plasmon resonance gas sensor of Au nano-islands coated with molecularly imprinted polymer: Influence of polymer thickness on sensitivity and selectivity

2016 ◽  
Vol 231 ◽  
pp. 787-792 ◽  
Author(s):  
Bin Chen ◽  
Chuanjun Liu ◽  
Lingpu Ge ◽  
Kenshi Hayashi
2020 ◽  
Vol 23 (04) ◽  
pp. 431-436
Author(s):  
V.I. Chegel ◽  
◽  
A.M. Lopatynskyi ◽  
V.K. Lytvyn ◽  
P.V. Demydov ◽  
...  

Sensor elements based on localized surface plasmon resonance phenomenon in arrays of Au nanostructures on glass substrates (nanochips) with molecularly imprinted acrylamide copolymer coating have been proposed for explosives analogues sensing in liquid and vapor phase. Nanochips exhibited detection limits of 1 pM in aqueous solution and 0.1 ppm in gaseous state against 4-nitrophenol. Vapor phase sensing of 4-nitrotoluene, 1-nitronaphthalene and 5-nitroisoquinoline using the developed 4-nitrophenol-imprinted plasmonic nanochips demonstrated partially selective response with time to signal saturation starting from 2 minutes.


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