A facile approach for synthesizing molecularly imprinted graphene for ultrasensitive and selective electrochemical detecting 4-nitrophenol

Analytica Chimica Acta
Jing LuoXiaoya Liu

Abstract

In this work, a novel and convenient strategy was developed to prepare molecularly imprinted polymers (MIPs) on the surface of graphene sheet. In this route, vinyl group functionalized graphene (GR/NVC) was first prepared by immobilizing 4-vinylcarbazole onto the surface of graphene via π-π interaction. The subsequent grafting copolymerization of methacrylic acid and ethylene glycol dimethacrylate in the presence of 4-nitrophenol (4-NP, template molecule) was carried out at GR/NVC surface, leading to the formation of GR/MIPs composite. The GR/MIPs composite was characterized by FTIR, fluorescence, TGA, SEM and AFM, and was used to fabricate electrochemical sensor for the detection of 4-NP. The electrochemical behavior of GR/MIPs sensor for 4-NP was investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The effects of the preparation conditions, such as concentration of the NVC and template, the solution pH, and incubation time, were also optimized. Under optimized conditions, the DPV current response of GR/MIPs sensor was nearly 12 times than that of the GR/NIPs sensor. It also should be noted that as compared to traditional MIP, shorter response time and much higher current response were demonstrated...Continue Reading

References

Apr 28, 2009·Biosensors & Bioelectronics·H-Y Lee, B S Kim
Feb 26, 2010·Analytical Chemistry·Haixin ChangJinghong Li
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Citations

Apr 5, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Masoud Ghanei-MotlaghVinod K Gupta
Mar 5, 2016·Chemical Society Reviews·Lingxin ChenJinhua Li
Jun 22, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Raji Feyisa BogaleGuiling Ning
May 22, 2019·Macromolecular Rapid Communications·Nan ZhangXiaoling Hu
Sep 7, 2018·Materials Science & Engineering. C, Materials for Biological Applications·Zhouxiang ZhangTongzhou Wang
Apr 4, 2021·Sensors·Mashaalah ZarejousheghaniYvonne Joseph
Jul 3, 2021·Nanomaterials·Andrea MaioRoberto Scaffaro

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