Chronopotentiometric study of a Nafion membrane in presence of glucose

Freijanes, Y.; Barragán, V.M.; Muñoz, S.

doi:10.1016/j.memsci.2016.02.054

Cited by 22 publications

(12 citation statements)

References 61 publications

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“…The excellent selectivity of the fabricated electrode is attributed to the excellent ion selectivity of the Nafion film. 37,38 Additionally, the low working potential (0.1 V in this study, 0.2 V in ref 27, and 0.65 V in ref 34) avoids interference from the oxidation of interfering substances. The identical CV curves of the Nafion-modified GCE with and without 5 mM of glucose indicate that Nafion does not have the catalytic capacity toward glucose (Figure S10).…”

Section: ■ Results and Discussionmentioning

confidence: 85%

Pt/MXene-Based Flexible Wearable Non-Enzymatic Electrochemical Sensor for Continuous Glucose Detection in Sweat

Chen

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Wearable non-invasive sensors facilitate the continuous measurement of glucose in sweat for the treatment and management of diabetes. However, the catalysis of glucose and sweat sampling are challenges in the development of efficient wearable glucose sensors. Herein, we report a flexible wearable non-enzymatic electrochemical sensor for continuous glucose detection in sweat. We synthesized a catalyst (Pt/MXene) by the hybridization of Pt nanoparticles onto MXene (Ti3C2T x ) nanosheets with a broad linear range of glucose detection (0–8 mmol/L) under neutral conditions. Furthermore, we optimized the structure of the sensor by immobilizing Pt/MXene with a conductive hydrogel to enhance the stability of the sensor. Based on Pt/MXene and the optimized structure, we fabricated a flexible wearable glucose sensor by integrating a microfluidic patch for sweat collection onto a flexible sensor. We evaluated the utility of the sensor for the detection of glucose in sweat, and the sensor could detect the glucose change with the replenishment and consumption of energy by the body, and a similar trend was observed in the blood. An in vivo glucose test in sweat indicated that the fabricated sensor is promising for the continuous measurement of glucose, which is essential for the treatment and management of diabetes.

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Section: ■ Results and Discussionmentioning

confidence: 85%

Pt/MXene-Based Flexible Wearable Non-Enzymatic Electrochemical Sensor for Continuous Glucose Detection in Sweat

Chen

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Nafion, poly(vinylpyridine)) exclusion . Herein, Nafion was chosen due to good electrical conductivity, high chemical stability, good biocompatibility, impermeability to negatively charged proteins as well as its simple handling and commercial availability . The processes of anodization, magnetron sputtering and thermal treatment in the furnace are already scaled up to commercial application that could make proposed approach not only profitable but also very reliable in terms of reproducibility of obtained electrodes.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

et al. 2019

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The detection of glucose at low concentrations using electrochemical sensors is of great importance due to the possibility of using different human body fluids than blood, such as e. g. urine, saliva, sweat or tears. The interest behind those biofluids is related to their utility in non‐invasive sugar determination. In this work, we present flexible, fully biocompatible electrode material based on Au nanoparticles immobilized onto titanium dimples. Au−Ti heterostructures were obtained via electrochemical anodization of titanium foil in presence of fluoride anions followed by chemical etching, magnetron sputtering of gold and subsequent thermal dewetting in continuous regime. In the last step of fabrication, electrodes were modified by permselective Nafion membrane. The selection of the best electrode material among different configurations was carried out basing on the electrochemical activity in the contact with 5 mM glucose dissolved in neutral air‐saturated 0.1 M PBS. For the 10 nm Au dewetted gold film, limit of detection of 30 μM and high sensitivity of 93 mA cm−2 mM−1 were achieved. Application of Nafion membrane caused complete inhibition of the impact of various interference species onto the glucose detection. Good selectivity and repeatability combined with the resistance to prolonged mechanical stress suggest that prepared material can be used in non‐invasive glucose sensing.

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“…Membranes for GFCs generally have two main functions [61][62][63][64][65]: (1) they can act as electrolyte between cathode and anode for ion conduction; (2) they can be used as a separator to separate the two half-reactions. There are different half-reactions taken place in different types of GFCs.…”

Section: Role Of Membranes In Gfcsmentioning

confidence: 99%

Glucose Fuel Cells and Membranes: A Brief Overview and Literature Analysis

Liu

2022

Sustainability

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Glucose is a ubiquitous source of energy for nearly all living things, and glucose fuel cells (GFCs) are regarded as a sustainable power source because glucose is renewable, easily available, cheap, abundant, non-toxic and easy-to-store. Numerous efforts have been devoted to developing and improving GFC performance; however, there is still no commercially viable devices on the market. Membranes play an essential role in GFCs for the establishment of a suitable local microenvironment, selective ion conducting and prevention of substrate crossover. However, our knowledge on them is still limited, especially on how to achieve comparable efficacy with that of a biological system. This review article provides the first brief overview on these aspects, particularly keeping in sight the research trends, current challenges, and the future prospects. We aim to bring together literature analysis and technological discussion on GFCs and membranes by using bibliometrics, and provide new ideas for researchers in this field to overcome challenges on developing high-performance GFCs.

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Chronopotentiometric study of a Nafion membrane in presence of glucose

Cited by 22 publications

References 61 publications

Pt/MXene-Based Flexible Wearable Non-Enzymatic Electrochemical Sensor for Continuous Glucose Detection in Sweat

Pt/MXene-Based Flexible Wearable Non-Enzymatic Electrochemical Sensor for Continuous Glucose Detection in Sweat

A Flexible Nafion Coated Enzyme‐free Glucose Sensor Based on Au‐dimpled Ti Structures

Glucose Fuel Cells and Membranes: A Brief Overview and Literature Analysis

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