A sensitive electrochemical molecularly imprinted sensor based on catalytic amplification by silver nanoparticles for 3-indoleacetic acid determination

Li, Jianping; Yin, Weiling; Tan, Yanji; Pan, Hongcheng

doi:10.1016/j.snb.2014.02.068

Cited by 24 publications

(4 citation statements)

References 35 publications

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“…18 schematically shows the sensing procedures and principles for the detection of nonelectroactive molecules. For example, Li et al 522 proposed a new strategy for improving the sensitivity of MIECS on the GCE surface by electro-polymerizing pyrrole to form the polypyrrole (PPY) membrane in the presence of a template thiolation-3-indoleacetic acid (IAA) for the detection of IAA. Fig.…”

Section: Chemical and Biological Sensingmentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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a Molecular imprinting technology (MIT), often described as a method of making a molecular lock to match a molecular key, is a technique for the creation of molecularly imprinted polymers (MIPs) with tailor-made binding sites complementary to the template molecules in shape, size and functional groups. Owing to their unique features of structure predictability, recognition specificity and application universality, MIPs have found a wide range of applications in various fields. Herein, we propose to comprehensively review the recent advances in molecular imprinting including versatile perspectives and applications, concerning novel preparation technologies and strategies of MIT, and highlight the applications of MIPs. The fundamentals of MIPs involving essential elements, preparation procedures and characterization methods are briefly outlined.Smart MIT for MIPs is especially highlighted including ingenious MIT (surface imprinting, nanoimprinting, etc.), special strategies of MIT (dummy imprinting, segment imprinting, etc.) and stimuli-responsive MIT (single/dual/ multi-responsive technology). By virtue of smart MIT, new formatted MIPs gain popularity for versatile applications, including sample pretreatment/chromatographic separation (solid phase extraction, monolithic column chromatography, etc.) and chemical/biological sensing (electrochemical sensing, fluorescence sensing, etc.). Finally, we propose the remaining challenges and future perspectives to accelerate the development of MIT, and to utilize it for further developing versatile MIPs with a wide range of applications (650 references).

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Section: Chemical and Biological Sensingmentioning

confidence: 99%

Molecular imprinting: perspectives and applications

et al. 2016

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“…When more template molecules occupy the recognition cavities in the imprinted membrane, there is less chance that the electrochemical probe can penetrate the imprinted membrane to reach the electrode surface, and the smaller the peak current of the electrochemical probe will be. For example, Li et al proposed using a competitive measurement to recognize thiol-3-indoleacetic acid (IAA) [ 64 ]. Figure 3 depicts the detection procedure and principle for nonelectrically active molecules.…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Application of Molecularly Imprinted Electrochemical Biomimetic Sensors for Detecting Small Molecule Food Contaminants

et al. 2022

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Environmental chemical contaminants in food seriously impact human health and food safety. Successful detection methods can effectively monitor the potential risk of emerging chemical contaminants. Among them, molecularly imprinted polymers (MIPs) based on electrochemical biomimetic sensors overcome many drawbacks of conventional detection methods and offer opportunities to detect contaminants with simple equipment in an efficient, sensitive, and low-cost manner. We searched eligible papers through the Web of Science (2000–2022) and PubMed databases. Then, we introduced the sensing mechanism of MIPs, outlined the sample preparation methods, and summarized the MIP characterization and performance. The classification of electrochemistry, as well as its advantages and disadvantages, are also discussed. Furthermore, the representative application of MIP-based electrochemical biomimetic sensors for detecting small molecular chemical contaminants, such as antibiotics, pesticides, toxins, food additives, illegal additions, organic pollutants, and heavy metal ions in food, is demonstrated. Finally, the conclusions and future perspectives are summarized and discussed.

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“…Other types of biosensors make use of molecular imprinted materials (MIPs), which also selectively recognize a template molecule. Several examples of the MIPs application to auxin quantification can be found in the literature [ 200 , 201 ]. However, affinity-based sensors often required an analyte extraction from plant tissues and one or more steps of pre-concentration.…”

Section: New Valuable Tools To Visualize Auxin Metabolitesmentioning

confidence: 99%

What Has Been Seen Cannot Be Unseen—Detecting Auxin In Vivo

Pařízková

Pernisová

Novák

2017

IJMS

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Auxins mediate various processes that are involved in plant growth and development in response to specific environmental conditions. Its proper spatio-temporal distribution that is driven by polar auxin transport machinery plays a crucial role in the wide range of auxins physiological effects. Numbers of approaches have been developed to either directly or indirectly monitor auxin distribution in vivo in order to elucidate the basis of its precise regulation. Herein, we provide an updated list of valuable techniques used for monitoring auxins in plants, with their utilities and limitations. Because the spatial and temporal resolutions of the presented approaches are different, their combination may provide a comprehensive outcome of auxin distribution in diverse developmental processes.

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A sensitive electrochemical molecularly imprinted sensor based on catalytic amplification by silver nanoparticles for 3-indoleacetic acid determination

Cited by 24 publications

References 35 publications

Molecular imprinting: perspectives and applications

Molecular imprinting: perspectives and applications

Application of Molecularly Imprinted Electrochemical Biomimetic Sensors for Detecting Small Molecule Food Contaminants

What Has Been Seen Cannot Be Unseen—Detecting Auxin In Vivo

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