Preparation and molecule-recognition characteristics of grafting type molecule-Imprinted membrane and potentiometric sensor for atrazine

Gao, Baojiao; Li, Hai; Cui, Kunli

doi:10.1016/j.snb.2017.07.089

Cited by 22 publications

(8 citation statements)

References 29 publications

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“…24,25 The molecular imprinting technique is a powerful method for preparing artificial recognition sites with predetermined selectivity for a wide range of target molecules. 26,27 The presence of nanomaterials in MIP sensors has boosted the advances in sensitivity enhancement owing to the specific binding sites forming predominantly at the material surface, as well as regular morphology, large surface and good stability. 25,28 In the surface imprinted materials, as the imprinted sites are close to or at the surface of MIPs, the binding and rebinding of the target compounds could be achieved easily.…”

Section: Construction and Evaluation Of A Graphene Oxide Functionalizmentioning

confidence: 99%

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Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Mirzajani¹,

Arefiyan²

2019

J. Braz. Chem. Soc.

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A dipyridamole (DIP) based surface molecularly imprinted polymer (MIP) was synthesized and applied as a sensing agent in a sensing layer of a new modified potentiometric carbon paste electrode (CPE). The potentiometric modified CPEs (GO@SiO 2-NH 2-MIP/MWCNTs/CPE, where GO is graphene oxide and MWCNTs is multi-walled carbon nanotubes) showed an improved performance in term of Nernstian slope, selectivity and response time compared to the unmodified CPE. The response time of the sensor in the range of 2.5 × 10-8-1.1 × 10-2 M DIP was 20 s. The obtained DIP sensor showed low limit of detection (1 × 10-8 M), and satisfactory long-term stability (higher than 4 months). The practical application of the sensor was demonstrated by the determination of DIP concentration in urine samples and pharmaceutical preparations, with good precision and acceptable recoveries (96.0-103.0%). The prepared sensor showed high selectivity for DIP over a number of common species (aspirin, caffeine, ascorbic acid, glucose, urea, bipyridine,

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Section: Construction and Evaluation Of A Graphene Oxide Functionalizmentioning

confidence: 99%

“…The quantity of the compound in solution was determined by reference to a standard calibration curve. By evaluation of these data, Q e (amount of the DIP bound on the polymer composite at equilibrium (60 min)) and K d (distribution coefficient) 37 were calculated according to equations 1 and 2:…”

Section: Binding and Recognizing Properties Of Synthesized Polymersmentioning

confidence: 99%

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Mirzajani¹,

Arefiyan²

2019

J. Braz. Chem. Soc.

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“…Its conjunction with MIPs could greatly improve the selectivity of molecularly imprinting potentiometric sensors. For instance, Gao et al 48 created a membrane electrode with an atrazine-imprinted membrane for detection of atrazine. The LOD was 47 nM.…”

Section: ■ Introductionmentioning

confidence: 99%

Molecularly Imprinted Polymer as an Antibody Substitution in Pseudo-immunoassays for Chemical Contaminants in Food and Environmental Samples

Chen

Luo

et al. 2018

J. Agric. Food Chem.

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The chemical contaminants in food and the environment are quite harmful to food safety and human health. Rapid, accurate, and cheap detection can effectively control the potential risks derived from these chemical contaminants. Among all detection methods, the immunoassay based on the specific interaction of antibody-analyte is one of the most widely used techniques in the field. However, biological antibodies employed in the immunoassay usually cannot tolerate extreme conditions, resulting in an unstable state in both physical and chemical profiles. Molecularly imprinted polymers (MIPs) are a class of polymers with specific molecular recognition abilities, which are highly robust, showing excellent operational stability under a wide variety of conditions. Recently, MIPs have been used in biomimetic immunoassays for chemical contaminants as an antibody substitute in food and the environment. Here, we reviewed these applications of MIPs incorporated in different analytical platforms, such as enzyme-linked immunosorbent assay, fluorescent immunoassay, chemiluminescent immunoassay, electrochemical immunoassay, microfluidic paper-based immunoassay, and homogeneous immunoassay, and discussed current challenges and future trends in the use of MIPs in biomimetic immunoassays.

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“…This strategy perfectly addressed the quandary of non-glycoprotein macromolecular biomarkers imprinting. However, based on the characteristics of the target biomarkers and the adsorption and detection environment, the preparation of magnetic surface molecularly imprinted polymers (M-SMIPs) is generally carried out in combination with a sacrificial carrier, 47 electropolymerization, 48 chemical grafting, 49 and controllable-active radicals. 50 This not only improves the various functions of imprinting, but also facilitates the combination of the M-SMIPs as recognition elements with detection methods.…”

Section: Preparation and Surface Modification Of Mmipsmentioning

confidence: 99%

Application progress of magnetic molecularly imprinted polymers chemical sensors in the detection of biomarkers

Wang

Yang

Pang

et al. 2022

Analyst

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Preparation and molecule-recognition characteristics of grafting type molecule-Imprinted membrane and potentiometric sensor for atrazine

Cited by 22 publications

References 29 publications

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Construction and Evaluation of a Graphene Oxide Functionalized Aminopropyltriethoxy Silane Surface Molecularly Imprinted Polymer Potentiometric Sensor for Dipyridamole Detection in Urine and Pharmaceutical Samples

Molecularly Imprinted Polymer as an Antibody Substitution in Pseudo-immunoassays for Chemical Contaminants in Food and Environmental Samples

Application progress of magnetic molecularly imprinted polymers chemical sensors in the detection of biomarkers

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