A Highly Sensitive Nonenzymatic Glucose Biosensor Based on the Regulatory Effect of Glucose on Electrochemical Behaviors of Colloidal Silver Nanoparticles on MoS2

Anderson, Kash; Poulter, Benjamin; Dudgeon, J. A.; Li, Shu En; Ma, Xuhui

doi:10.3390/s17081807

Cited by 48 publications

(30 citation statements)

References 48 publications

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“…However, PNA‐Ag nanocomposites exhibit large anodic and cathodic currents, which are attributed to better electrochemical activity because of the presence of AgNPs and larger electrochemical surface area provided by the nanocomposites. Comparison of CV plots of PNA‐Ag systems with previous reports reveals that all characteristic peaks of silver, which correspond to the electrooxidation and electroreduction of incorporated metallic silver, were observed during the potential scan, and electrochemical transitions are assigned accordingly . The electrochemical transitions at the PNA‐Ag‐modified CPE surface are represented in the eqns.1‐4.…”

Section: Resultsmentioning

confidence: 74%

Synthesis of novel poly(1‐naphthylamine)‐silver nanocomposites and its catalytic studies on reduction of 4‐nitrophenol and methylene blue

Saidu

Joseph²,

Thomas³

2019

J of Applied Polymer Sci

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A novel poly(1‐naphthylamine)‐silver (PNA‐Ag) nanocomposite has been prepared and used as a heterogeneous catalyst for the reduction of 4‐nitrophenol (4‐NP) and methylene blue (MB). In this study, silver nanoparticles (AgNPs) have been incorporated to PNA via a simple and fast one‐step route, where PNA acts as the reductant for silver ions and stabilizer for AgNPs. The prepared PNA‐Ag nanocomposites were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray diffraction (XRD), thermogravimetric analysis (TGA), energy dispersive X‐ray scattering (EDAX), and Fourier transform infrared (FTIR) spectroscopy. They provided ample evidence for the anchoring of AgNPs to the PNA chains. Enhanced electrochemical performance of the PNA‐Ag nanocomposite has been evidenced by cyclic voltammetry studies. Catalytic studies confirmed that the rate of reduction of both 4‐NP and MB with sodium borohydride have been enhanced significantly in the presence of AgNPs loaded PNA in comparison to neat PNA. This nanocomposite could find application as catalyst for reductive degradation of toxic organic pollutants. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48318.

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Section: Resultsmentioning

confidence: 74%

Synthesis of novel poly(1‐naphthylamine)‐silver nanocomposites and its catalytic studies on reduction of 4‐nitrophenol and methylene blue

Saidu

Joseph²,

Thomas³

2019

J of Applied Polymer Sci

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“…Fabricating highly porous nanofibres using electrospinning and combining them with a bioreceptor is an example of this method for enhancing sensor sensitivity, sensing range and bioreceptor immobilization [64]. Likewise, conductive metal nanoparticles can be used to enhance the performance of non-conductive but highly selective materials [65,66].…”

Section: Sensor Manufacturing Methodsmentioning

confidence: 99%

“…Non-conductive materials with desirable properties such as high selectivity, mechanical strength and flexibility, biocompatibility and large surface areas can still be used in electrode fabrication by doping with conductive materials. Anderson et al [65] presented this as a useful method in non-enzymatic amperometric glucose sensing, where an intrinsically non-conductive material, molybdenum disulphide (MoS 2 ), was nucleated with silver nanoparticles and used to modify a glassy carbon electrode. The LoD was found to be 0.03 µM with a sensitivity of 9044.6 µA mM −1 cm 2 and a linear range of 0.1-1.0 mM of glucose concentration, with high selectivity towards glucose detection.…”

Section: Methodsmentioning

confidence: 99%

Wearable flexible sweat sensors for healthcare monitoring: a review

Chung

Fortunato

Radacsi

2019

J. R. Soc. Interface.

264

208

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The state-of-the-art in wearable flexible sensors (WFSs) for sweat analyte detection was investigated. Recent advances show the development of integrated, mechanically flexible and multiplexed sensor systems with on-site circuitry for signal processing and wireless data transmission. When compared with single-analyte sensors, such devices provide an opportunity to more accurately analyse analytes that are dependent on other parameters (such as sweat rate and pH) by improving calibration from in situ real-time analysis, while maintaining a lightweight and wearable design. Important health conditions can be monitored and on-demand regulating drugs can be delivered using integrated wearable systems but require correlation verification between sweat and blood measurements using in vivo validation tests before any clinical application can be considered. Improvements are necessary for device sensitivity, accuracy and repeatability to provide more reliable and personalized continuous measurements. With rapid recent development, it can be concluded that non-invasive WFSs for sweat analysis have only skimmed the surface of their health monitoring potential and further significant advancement is sure to be made in the medical field.

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“…A negligible 3.4% reduction in the response of the sensor was measured after ambient storage for 4 weeks. In addition, Anderson et al reported a highly sensitive non-enzymatic glucose biosensor by incorporating colloidal silver nanoparticles with MoS 2 [28]. The introduction of Ag nanoparticles was to address the intrinsic poor conductivity of MoS 2 .…”

Section: Electrochemical Glucose Biosensor-based Mos 2 Nanocompositesmentioning

confidence: 99%

Enzyme-Free Glucose Biosensors Based on MoS2 Nanocomposites

Huang

2020

Nanoscale Res Lett

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High-performance glucose biosensors are highly desired for healthcare. To meet these demands, glucose biosensors, particularly enzyme-free glucose biosensors, have received much attention. Two-dimensional materials, e.g., graphene, with high surface area, excellent electrical properties, and good biocompatibility, have been the main focus of biosensor research in the last decade. This review presents the recent progress made in enzyme-free glucose biosensors based on MoS 2 nanocomposites. Two different techniques for glucose detections are introduced, with an emphasis on electrochemical glucose biosensors. Challenges and future perspectives of MoS 2 nanocomposite glucose biosensors are also discussed.

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A Highly Sensitive Nonenzymatic Glucose Biosensor Based on the Regulatory Effect of Glucose on Electrochemical Behaviors of Colloidal Silver Nanoparticles on MoS2

Cited by 48 publications

References 48 publications

Synthesis of novel poly(1‐naphthylamine)‐silver nanocomposites and its catalytic studies on reduction of 4‐nitrophenol and methylene blue

Synthesis of novel poly(1‐naphthylamine)‐silver nanocomposites and its catalytic studies on reduction of 4‐nitrophenol and methylene blue

Wearable flexible sweat sensors for healthcare monitoring: a review

Enzyme-Free Glucose Biosensors Based on MoS2 Nanocomposites

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