Highly sensitive detection of gallic acid based on 3D interconnected porous carbon nanotubes/carbon nanosheets modified glassy carbon electrode

Zhao, Hongyuan; Ran, Qiwen; Li, Yongfeng; Li, Bo; Liu, Binbin; Ma, Huina; Zhang, Mingming; Komarneni, Sridhar

doi:10.1016/j.jmrt.2020.05.102

Cited by 55 publications

(5 citation statements)

References 56 publications

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“…This example represents the first-time use of nanomaterials in conjunction with the OECT architecture, displaying superior performance to the nanomaterial-free analogs. The use of a nanomaterial-modified gate electrode for the improved electrooxidation of metabolites has been since successfully implemented to detect epinephrine, tyrosine, lactate, gallic acid, and glutamate and acetylcholine, to name a few. For OECT sensors that measure the oxidation of an analyte, when both channel and gate have the ability to do so, the sensing event will take place at the most positive terminal, which depends on the amplitude of the drain and gate voltages. , For instance, Scheiblin et al developed a flexible screen-printed OECT that detects glucose and lactate from artificial sweat (Figure B) .…”

Section: Sensing Methodsmentioning

confidence: 99%

Organic Bioelectronic Devices for Metabolite Sensing

et al. 2021

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Electrochemical detection of metabolites is essential for early diagnosis and continuous monitoring of a variety of health conditions. This review focuses on organic electronic material-based metabolite sensors and highlights their potential to tackle critical challenges associated with metabolite detection. We provide an overview of the distinct classes of organic electronic materials and biorecognition units used in metabolite sensors, explain the different detection strategies developed to date, and identify the advantages and drawbacks of each technology. We then benchmark state-of-the-art organic electronic metabolite sensors by categorizing them based on their application area (in vitro, bodyinterfaced, in vivo, and cell-interfaced). Finally, we share our perspective on using organic bioelectronic materials for metabolite sensing and address the current challenges for the devices and progress to come. CONTENTS 1. Introduction 4581 2. Metabolite Sensing in the Body at a Glance 4583 2.1. Metabolite Sensing and Signaling Mechanisms: Sensor−Transducer−Effector Model 4583 2.2. (Biological) Recognition Units 4584 3. Organic Electronic Materials in Metabolite Sensing 4588 3.1. Graphene 4588 3.2. Carbon Nanotubes 4590 3.3. Conjugated Polymers (CPs) 4590 3.4. Composite Materials 4591 4. Sensing Methods 4592 4.1. Electrodes 4593 4.1.1.

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Section: Sensing Methodsmentioning

confidence: 99%

Organic Bioelectronic Devices for Metabolite Sensing

et al. 2021

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“…Also, owing to the encapsulation of Pec inside the ZIF-12, it greatly enhanced the composite's stability leading for increased redox behavior. 53 The Pec exhibits low conductivity as a result of its amorphous nature, while ZIF also shows a better current value due to the presence of cobalt ion. Using the Randles−Sevcik equation (I p = 2.69 × 10 5 n 3/2 A eff D 1/2 ν 1/2 C) the electrochemical active surface area was calculated to be 146.85, 30.98, 37.25, and 108.05 cm 2 for the bare, Pec, ZIF-12, and Pec@ZIF-12 modified electrodes.…”

Section: Morphology Analysismentioning

confidence: 97%

“…Furthermore, the hydroxyl groups on GA that have undergone protonation make them more prone to oxidation in an acidic environment. Therefore, the oxidation of GA is more favored when the pH value of the electrolyte used is almost low . Considering all of these, pH 3 was considered as the optimum pH value for all of the further experiments.…”

Section: Electrochemical Characterizationsmentioning

confidence: 99%

Natural Polymer Encapsulated Zeolitic Imidazolate Framework-12 Composite toward Electrochemical Sensing of Antitumor Agent

Thenrajan,

Madhu Malar,

Wilson

2024

ACS Appl. Bio Mater.

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Encapsulation of natural polymer pectin (Pec) into a zeolitic imidazolate framework-12 (ZIF-12) matrix via a simple chemical method toward anticancer agent gallic acid (GA) detection is reported in this work. GA, a natural phenol found in many food sources, has gained attention by its biological effects on the human body, such as an antioxidant and anti-inflammatory. Therefore, it is crucial to accurately and rapidly determine the GA level in humans. The encapsulation of Pec inside the ZIF-12 has been successfully confirmed from the physiochemical studies such as XRD, Raman, FTIR, and XPS spectroscopy along with morphological FESEM, BET, and HRTEM characterization. Under optimized conditions, the Pec@ZIF-12 composite exhibits wide linear range of 20 nM−250 μM with a detection limit of 2.2 nM; also, it showed excellent selectivity, stability, and reproducibility. Furthermore, the real sample analysis of food samples including tea, coffee, grape, and pomegranate samples shows exceptional recovery percentage in an unspiked manner. So far, there is little literature for encapsulating proteins, enzymes, metals, etc., that have been reported; here, we successfully encapsulated a natural polymer Pec inside the ZIF-12 cage. This encapsulation significantly enhanced the composite electrochemical performance, which could be seen from the overall results. All of these strongly suggest that the proposed Pec@ZIF-12 composite could be used for miniaturized device fabrication for the evaluation of GA in both home and industrial applications.

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“…To improve the analytical performances, mainly sensitivity and limit of detection (LOD), different electrode modifiers, mainly based on carbon nanomaterials were also used. Multitude of studies on carbon nanotube and related composites modified GCE were reported, exhibiting high sensitivity, low interference and LOD down to a few nM or sub-nM [16][17][18][19]. Besides carbon nanomaterials, gold nanoparticles modified carbon paste electrode and silver nanoparticles modified GCE were also reported to detect GA with high analytical performances in food samples [20,21].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical oxidation of gallic acid: A reexamination of the reaction mechanism in aqueous medium

Kumar,

Alami-Mejjati,

Bouvet

et al. 2023

Electrochimica Acta

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Highly sensitive detection of gallic acid based on 3D interconnected porous carbon nanotubes/carbon nanosheets modified glassy carbon electrode

Cited by 55 publications

References 56 publications

Organic Bioelectronic Devices for Metabolite Sensing

Organic Bioelectronic Devices for Metabolite Sensing

Natural Polymer Encapsulated Zeolitic Imidazolate Framework-12 Composite toward Electrochemical Sensing of Antitumor Agent

Electrochemical oxidation of gallic acid: A reexamination of the reaction mechanism in aqueous medium

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