Multichannel nanoplasmonic platform for imidacloprid and fipronil residues rapid screen detection

LSPR immuno-sensing based on iso-Y nanopillars for highly sensitive and specific imidacloprid detection

“…It must be mentioned that the obtained LOD value of 0.75 ppb is extremely competitive considering the imidacloprid detection systems reported in the literature. [13][14][15][16][17][18] Moreover, we believe that our work represents an outstanding result considering that is the first example of imidacloprid detection achieved using a LSPR tool.…”

“…A renewed system with an improved spectral resolution E0.1 nm per pixel, a DL E 10 ppb and a detection time E 2 h 30 min has been recently proposed by the same authors. 14 A quench-body immunoassay for imidacloprid detection was then proposed in 2018 by Zhao et al 15 It was realized by means of a recombinant antibody antigen-binding fragment carrying a Cys-tag for fluorescence labelling. This strategy involved a dye coupling reaction, expensive reagents, and different steps of purification after expression.…”

A Co-Printed Nanoslit Surface Plasmon Resonance Structure in Microfluidic Device for LMP-1 Detection

“…The sensing chips can be quantified by analyzing the resonant spectrum and images [ 32 ]. Multiplex detection was also exhibited [ 33 , 34 ]. Biosensing applications were presented to quantify DNA/RNA/micro (mi)RNA [ 35 , 36 , 37 , 38 ], proteins [ 39 ], autoantibodies [ 40 ], cells [ 41 ], and NPs in living cells [ 42 ].…”

Nanoplasmonic Structure of a Polycarbonate Substrate Integrated with Parallel Microchannels for Label-Free Multiplex Detection

“…The transducer is the critical element for determining the sensitivity, sensing range, and detection limit of the biosensors. In the past, several transducers for label-free immunosensing were developed, including quartz crystal microbalances (QCMs) [ 1 , 2 , 3 ], amperometric transducers [ 4 , 5 , 6 , 7 ], cantilever beams [ 8 , 9 , 10 ], electrochemical impedance spectroscopy (EIS) biosensors [ 11 , 12 , 13 , 14 ], preconcentrated immunosensing [ 15 , 16 , 17 ], surface plasmon resonance (SPR) [ 18 , 19 , 20 ], and nanobead Brownian motion [ 21 , 22 , 23 ]. Transducer fabrication of most current technologies is expensive, and they are not easy to mass-produce for rapid screening.…”

“…Recently, transparent-type SPR sensors were proposed by propagating normal incident light into period gold nanohole arrays or nanoslits to generate SPR for biosensing applications [ 29 , 30 , 31 ]. Compared to the reflective-type SPR, transparent-type SPR sensors benefit from having a small detection volume that shows the capability to integrate with multiplex microfluidic devices [ 18 ]. They also provide a feasible way to achieve chip-based, high-throughput, label-free detection for modern DNA and protein microarrays.…”