Development of a nickel hydroxide nanopetal decorated molecular imprinted polymer based electrode for sensitive detection of epigallocatechin-3-gallate in green tea

Chatterjee, Trisita Nandy; Das, Debangana; Roy, Runu Banerjee; Tudu, Bipan; Hazarika, Ajanto Kr; Sabhapondit, Santanu; Tamuly, Pradip; Bandyopadhyay, Rajib

doi:10.1016/j.snb.2018.11.159

Cited by 32 publications

(6 citation statements)

References 55 publications

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“…Interestingly, using the electrochemical method, a non-enzymatic sensor using the MIP with Ni(OH) 2 nanopetals for the selective determination of EGCG was fabricated. The proposed sensor presented excellent results with commercially obtained EGCG with an LOD of 7 nM, which was finally verified with the GT samples . Recently, metal–organic frameworks (MOFs) attract the attention of researchers due to their notable characteristics like huge surface areas, unique pore interiors, and simple functionalization procedures in various fields such as sensors, catalysis, gas storage, and molecular separations .…”

Section: Introductionsupporting

confidence: 58%

“…These studies confirm the oxidation values corresponding to EC, EGCG, and ECG in both GT and the commercial samples, which is also verified with the literature. 13 , 12 All these three CTs contribute as the major compounds in this group; so, their detection is very much important to estimating the quality of GT. This interaction arises owing to the electrostatic attraction of metal ions on the composite surface with the OH – groups of the detected CTs in GT.…”

Section: Results and Discussionmentioning

confidence: 99%

“…The proposed sensor presented excellent results with commercially obtained EGCG with an LOD of 7 nM, which was finally verified with the GT samples. 13 Recently, metal–organic frameworks (MOFs) attract the attention of researchers due to their notable characteristics like huge surface areas, unique pore interiors, and simple functionalization procedures in various fields such as sensors, catalysis, gas storage, and molecular separations. 14 A subclass of MOFs is zeolitic imidazolate frameworks (ZIFs), a broad class of composite materials wherein a metal ion is coordinated with the desired organic ligands that form a kind of framework through coordination bonds.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel Electrochemical Sensing of Catechins in Raw Green Tea Extract via a Trimetallic Zeolitic Imidazolate Fibrous Framework

et al. 2022

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Human health-related issues are increasing in day to day life because of the modern and unhygienic food lifestyles. In recent times, green tea (GT) gains more attention due to its numerous health benefits. It contains more biologically active compounds that improve mental health, increase metabolism, reduce cancer risks, and serve as an anti-aging agent for the brain. As it is globally consumed, the evaluation of the compounds present in it is very important. Hence, an attempt has been performed to evaluate these components in GT by using a cobalt nickel iron-based trimetallic zeolitic imidazolate framework as microfibers (CoNiFe-ZIF-MFs) synthesized via an electrospinning technique. Interestingly, the synthesized CoNiFe-ZIF-MFs catalyst simultaneously detects three major catechin (CT) groups, namely, epigallocatechin-3-gallate (EGCG), epicatechin (EC), and epicatechingallate (ECG). Further, the square wave voltammetry findings showed that there is a wide linear range of 50 ng to 1 mg for all the three CTs with LODs 45, 8, and 4 ng for EGCG, EC, and ECG, respectively. These results confirm the excellent sensing behavior of the composite toward GT extracts, proposing its practical utility in real-time compound analysis in food sectors. Other results like stability and reproducibility also promote its usage in the biomedical field. This study mainly focuses on the direct sensing of CTs present in GT without spiking any commercially purchased sample, and the sensing was performed simultaneously for all the three analytes; thus, this work gains novelty from the existing ones.

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Section: Introductionsupporting

confidence: 58%

Section: Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Novel Electrochemical Sensing of Catechins in Raw Green Tea Extract via a Trimetallic Zeolitic Imidazolate Fibrous Framework

et al. 2022

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“…Three-dimensional (3D) nanofillers have dimensions along three directions, and nanostructures that are outside the nanometer range; however, the size of the individual blocks (structural units) is on the nanometer scale. These materials include nanoclays, nanogranules, and equiaxed NPs; zeolites are a notable example [ 40 ].…”

Section: Polymer Nanocompositesmentioning

confidence: 99%

Advances in Functional Biopolymer-Based Nanocomposites for Active Food Packaging Applications

Basavegowda

Baek

2021

Polymers

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Polymeric nanocomposites have received significant attention in both scientific and industrial research in recent years. The demand for new methods of food preservation to ensure high-quality, healthy foods with an extended shelf life has increased. Packaging, a crucial feature of the food industry, plays a vital role in satisfying this demand. Polymeric nanocomposites exhibit remarkably improved packaging properties, including barrier properties, oxygen impermeability, solvent resistance, moisture permeability, thermal stability, and antimicrobial characteristics. Bio-based polymers have drawn considerable interest to mitigate the influence and application of petroleum-derived polymeric materials and related environmental concerns. The integration of nanotechnology in food packaging systems has shown promise for enhancing the quality and shelf life of food. This article provides a general overview of bio-based polymeric nanocomposites comprising polymer matrices and inorganic nanoparticles, and describes their classification, fabrication, properties, and applications for active food packaging systems with future perspectives.

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“…In recent years, molecularly imprinted polymers (MIPs) have been widely used in various fields such as artificial antibodies, chemical sensors and solid phase extraction, due to their excellent selectivity, good chemical and physical stability, as well as low cost [28,29,30]. There are also increasing reports of using MIPs to modify the electrode surface to enhance selectivity [31,32,33,34]. In general, molecular imprinting is the process of polymerizing selected functional monomers around the template molecules in the presence of a cross-linking agent.…”

Section: Introductionmentioning

confidence: 99%

A Simple and Efficient Molecularly Imprinted Electrochemical Sensor for the Selective Determination of Tryptophan

Tian

Deng

et al. 2019

Biomolecules

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In this paper, a tryptophan (Trp) molecularly imprinted chitosan film was prepared on the surface of an acetylene black paste electrode using chitosan as the functional polymer, Trp as the template molecule and sulfuric acid as the crosslinking agent. The surface morphologies of non-imprinted and imprinted electrodes were characterized by scanning electron microscopy (SEM). The formation of hydrogen bonds between the functional polymer and the template molecule was confirmed by infrared spectroscopy. Some factors affecting the performance of the imprinted electrode such as the concentration of chitosan, the mass ratio of chitosan to Trp, the dropping amount of the chitosan-Trp mixture, the solution pH, and the accumulation potential and time were discussed. The experimental results show that the imprinted electrode exhibit good affinity and selectivity for Trp. The dynamic linear ranges of 0.01–4 M, 4–20 M and 20–100 M were obtained by second derivative linear sweep voltammetry, and the detection limit was calculated to be 8.0 nM. The use of the imprinted electrode provides an effective method for eliminating the interference of potentially interfering substances. In addition, the sensor has high sensitivity, reproducibility and stability, and can be used for the determination of Trp in pharmaceutical preparations and human serum samples.

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Development of a nickel hydroxide nanopetal decorated molecular imprinted polymer based electrode for sensitive detection of epigallocatechin-3-gallate in green tea

Cited by 32 publications

References 55 publications

Novel Electrochemical Sensing of Catechins in Raw Green Tea Extract via a Trimetallic Zeolitic Imidazolate Fibrous Framework

Novel Electrochemical Sensing of Catechins in Raw Green Tea Extract via a Trimetallic Zeolitic Imidazolate Fibrous Framework

Advances in Functional Biopolymer-Based Nanocomposites for Active Food Packaging Applications

A Simple and Efficient Molecularly Imprinted Electrochemical Sensor for the Selective Determination of Tryptophan

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