A high performance and highly-controllable core-shell imprinted sensor based on the surface-enhanced Raman scattering for detection of R6G in water

Li, Hongji; Jiang, Jiaqi; Wang, Zirun; Wang, Xiaonan; Liu, Xiqing; Yan, Yongsheng; Li, Chunxiang

doi:10.1016/j.jcis.2017.04.010

Cited by 35 publications

(17 citation statements)

References 35 publications

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“…On the one hand, these materials own great enhancement effect to the SERS signal . On the other hand, comparing with Au particles, Ag particles are more economic and practical . But, traditional substrates own the constant surface area and take a long time to adsorb the template molecules.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a high‐performance magnetic molecularly imprinted sensor for SERS detection of cyfluthrin in river

Wang

et al. 2019

J Raman Spectroscopy

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A novel magnetic molecularly imprinted sensor (Fe 3 O 4 /GO/Ag-MIPs) was successfully synthesized. Combining with the technique of surface-enhanced Raman scattering (SERS), it could be applied to detect cyfluthrin (LC). Herein, GO and Ag particles were anchored on the surface of the Fe 3 O 4 @SiO 2 to obtain the composite (Fe 3 O 4 /GO/Ag), which was prepared as a SERS substrate. Then, the Fe 3 O 4 /GO/Ag-MIPs (FGA-MIPs) prepared by precipitation polymerization was evaluated as the SERS imprinted sensor for selective detection of LC from aqueous medium. The morphology and structural properties of FGA-MIPs were characterized by a series of modern analysis measurements. The results proved that FGA-MIPs possessed wonderful magnetic separation, sensitive SERS detection, and selectivity. Under optimal conditions, it exhibited a good linear relationship (R 2 = 0.9926) between the Raman shift (at 1,004 cm −1 ) and the concentration of LC among 10 −3 -10 −8 mol/L, and the limit of detection was 10 −8 mol/L. Meanwhile, the selective experiment indicated that this material owned specific selectivity to the template molecules. Thus, the result of this experiment demonstrated that the FGA-MIPs was a highly sensitive and selective sensor material in the field of LC detection, and it provided a new approach to other residual pyrethroid detection in the environment water.

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Section: Introductionmentioning

confidence: 99%

Preparation of a high‐performance magnetic molecularly imprinted sensor for SERS detection of cyfluthrin in river

Wang

et al. 2019

J Raman Spectroscopy

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“…Another approach is the incorporation of other particles into the core surface, such as metals that enable SERS measurements [165,166]. However, the incorporation these colloids, such as AuNPs, has also been described using fluorescent detection systems.…”

Section: Three-dimensional Compositesmentioning

confidence: 99%

Molecularly Imprinted Polymer-Based Hybrid Materials for the Development of Optical Sensors

Rico-Yuste¹,

Carrasco

2019

Polymers

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We report on the development of new optical sensors using molecularly imprinted polymers (MIPs) combined with different materials and explore the novel strategies followed in order to overcome some of the limitations found during the last decade in terms of performance. This review pretends to offer a general overview, mainly focused on the last 3 years, on how the new fabrication procedures enable the synthesis of hybrid materials enhancing not only the recognition ability of the polymer but the optical signal. Introduction describes MIPs as biomimetic recognition elements, their properties and applications, emphasizing on each step of the fabrication/recognition procedure. The state of the art is presented and the change in the publication trend between electrochemical and optical sensor devices is thoroughly discussed according to the new fabrication and micro/nano-structuring techniques paving the way for a new generation of MIP-based optical sensors. We want to offer the reader a different perspective based on the materials science in contrast to other overviews. Different substrates for anchoring MIPs are considered and distributed in different sections according to the dimensionality and the nature of the composite, highlighting the synergetic effect obtained as a result of merging both materials to achieve the final goal.

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“…The most well-known among them is the MIP core-shell structure. For example, a highly-controllable core-shell SERS sensor was developed to detection of R6G in water [ 106 ]. AgNPs as the SERS substrates were in-situ reduced on amino-functionalized SiO 2 followed by polymerization to for MIPs shell.…”

Section: Mips-sersmentioning

confidence: 99%

“… The TEM images of SiO 2 /Ag/MIPs with different shell thickness: 40 nm ( a ), 170 nm ( b ) and ( c ) the SERS detections of different thicknesses of SiO2/Ag/MIPs to the same concentration of R6G at 10 −6 mol L −1 (40 nm ( a ), 100 nm ( b ), 170 nm ( c )) [ 106 ]. …”

Section: Figures Scheme and Tablesmentioning

confidence: 99%

Selectivity/Specificity Improvement Strategies in Surface-Enhanced Raman Spectroscopy Analysis

Wang¹,

Cao²,

Yan³

et al. 2017

Sensors

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Surface-enhanced Raman spectroscopy (SERS) is a powerful technique for the discrimination, identification, and potential quantification of certain compounds/organisms. However, its real application is challenging due to the multiple interference from the complicated detection matrix. Therefore, selective/specific detection is crucial for the real application of SERS technique. We summarize in this review five selective/specific detection techniques (chemical reaction, antibody, aptamer, molecularly imprinted polymers and microfluidics), which can be applied for the rapid and reliable selective/specific detection when coupled with SERS technique.

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A high performance and highly-controllable core-shell imprinted sensor based on the surface-enhanced Raman scattering for detection of R6G in water

Cited by 35 publications

References 35 publications

Preparation of a high‐performance magnetic molecularly imprinted sensor for SERS detection of cyfluthrin in river

Preparation of a high‐performance magnetic molecularly imprinted sensor for SERS detection of cyfluthrin in river

Molecularly Imprinted Polymer-Based Hybrid Materials for the Development of Optical Sensors

Selectivity/Specificity Improvement Strategies in Surface-Enhanced Raman Spectroscopy Analysis

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