Surface plasmon resonance sensor for profenofos detection using molecularly imprinted thin film as recognition element

Dong, Jianwei; Gao, Na; Peng, Yuan; Guo, Chunxian; Lv, Zhiqiang; Wang, Ying; Zhou, Chang; Ning, Baoan; Liu, Ming; Gao, Zhixian

doi:10.1016/j.foodcont.2011.11.015

Cited by 55 publications

(39 citation statements)

References 34 publications

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“…The self-assembly grafted method was similar to that reported by Dong et al 20 The gold surface was first modified by 20 mL 1 mM MUA ethanol solution to form a self-assembled monolayer (SAM). The self-assembly grafted method was similar to that reported by Dong et al 20 The gold surface was first modified by 20 mL 1 mM MUA ethanol solution to form a self-assembled monolayer (SAM).…”

Section: Preparation Of Molecularly Imprinted Thin Film On the Gold Chipmentioning

confidence: 99%

“…Lotierzo et al immobilized a photo-radical initiator, 4,4 0 -azobis(cyanovaleric acid), on a gold chip precoated with 2-mercaptoethylamine and then synthesized an ultrathin MIP film through surface-initiated polymerization. 20 Surface-initiated radical polymerization is an efficient way to prepare ultrathin MIP films on a gold surface. 19,29 The gold surface was first modified by MUA, and then ABAH was covalently coupled to the carboxyl-terminated SAM by amino groups.…”

Section: Polymer Graftingmentioning

confidence: 99%

“…16 SPR sensors are suitable for monitoring the interaction between large biomolecules, such as antibodies, antigens, proteins, and nucleic acids. [17][18][19][20][26][27][28] The self-assembly grafted method is a commonly used method for the preparation of an ultrathin MIP film on the SPR sensor. [17][18][19][20] The recognition elements of the conventional SPR sensor are biomolecules, such as acetylcholinesterase 21 and antibodies, [22][23][24] which are usually costly and stable only under physiological conditions.…”

Section: Introductionmentioning

confidence: 99%

“…However, they are also used in detecting small molecules because of their high sensitivity. 19,20,26 First, a self-assembled monolayer (SAM) is formed on the surface of the SPR sensor. These limitations prompted researchers to develop a robust and relatively inexpensive recognition element.…”

Section: Introductionmentioning

confidence: 99%

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A novel polymerization of ultrathin sensitive imprinted film on surface plasmon resonance sensor

Dong

Peng²,

Gao

et al. 2012

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A new surface-initiated polymerization based on pasting the initiator on a sensor chip surface was applied to prepare a malachite green (MG) imprinted ultrathin film on a surface plasmon resonance (SPR) sensor. First, the initiator (2,2-azoisobutyronitrile) was pasted on the gold surface using polyvinyl chloride (PVC). The initiator-covered gold chip was then soaked in a pre-polymerization solution prepared by dissolving methacrylic acid (functional monomer), ethylene glycol dimethacrylate (cross-linker), and MG (template) in DMSO in a weighing bottle. Finally, the weighing bottle was placed in a vacuum oven and thermal-initiated polymerization was conducted at 60 °C for 16 h. This method was simple and time-saving compared with the commonly used surface-initiated polymerization. More importantly, the molecularly imprinted polymer (MIP) film prepared using this method was much thicker than that of commonly used methods; the adsorption quantity was also much larger. The MIP modified SPR sensor showed high sensitivity and selectivity as well as good stability in detecting MG. The results suggest that the ultrathin MIP film prepared using the new method in this study is suitable to serve as the recognition element of the SPR sensor.

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Section: Preparation Of Molecularly Imprinted Thin Film On the Gold Chipmentioning

confidence: 99%

Section: Polymer Graftingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A novel polymerization of ultrathin sensitive imprinted film on surface plasmon resonance sensor

Dong

Peng²,

Gao

et al. 2012

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“…However, extracting the imprinted analyte from these bulk MIP monoliths is a major concern that results to poor sensor performance. Based on recent reports, surface imprinting in thin film formats provide a more appealing strategy since the artificial recognition sites are easily accessible and more closely attached to transducer surfaces and the signal due to analyte rebinding is amplified [28,29]. In the past few years, our group has been using thin films of electrochemically polymerized conducting polymers in developing molecularly imprinted polymer sensors for various analytes including drug molecules [30] and several toxic chemicals [31,32].…”

Section: Introductionmentioning

confidence: 99%

Detection of aspartame via microsphere-patterned and molecularly imprinted polymer arrays

Tiu

Pernites

Tiu

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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A colloidal sphere-patterned polyterthiophene thin film sensor with high binding affinity and selectivity towards aspartame was fabricated using a technique combining molecular imprinting and colloidal sphere lithography (CSL). The successful imprinting of aspartame into electropolymerized molecularly imprinted polymer generated artificial recognition sites capable of rebinding aspartame into the microporous film, which was sensitively detected using quartz crystal microbalance measurements. The resulting sensor exhibited a good linear response after exposure to aspartame concentrations ranging from 12.5 μM to 200 μM and limit of detection of ~31 μM. It also demonstrated a high selectivity towards aspartame as compared to other peptidebased analogs including alanine-phenylalanine (Ala-Phe), alanine-glutamine (Ala-Gln), glycylglycine (Gly-Gly), and arginylglycylaspartic acid (RGD). The formation of the highly ordered micropatterned surface was induced and monitored in situ by electrochemical quartz crystal microbalance and atomic force microscopy. Analyte imprinting and removal were characterized using X-ray photoelectron spectroscopy. Based on molecular modeling (semiempirical AM1 quantum calculations), the formation of a stable pre-polymerization complex due to the strong hydrogen bonding interactions between the terthiophene monomer and aspartame played a key role in the effective aspartame imprinting and detection.

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Plasmonic Smart Nanosensors for the Determination of Environmental Pollutants

Saylan

Yılmaz

Özgür

et al. 2020

Emerging Carbon‐Based Nanocomposites for Environmental Applications

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Surface plasmon resonance sensor for profenofos detection using molecularly imprinted thin film as recognition element

Cited by 55 publications

References 34 publications

A novel polymerization of ultrathin sensitive imprinted film on surface plasmon resonance sensor

A novel polymerization of ultrathin sensitive imprinted film on surface plasmon resonance sensor

Detection of aspartame via microsphere-patterned and molecularly imprinted polymer arrays

Plasmonic Smart Nanosensors for the Determination of Environmental Pollutants

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