Recent developments in electrochemical sensors based on graphene for bioanalytical applications DOI Creative Commons
Abdulazeez T. Lawal

Sensing and Bio-Sensing Research, Journal Year: 2023, Volume and Issue: 41, P. 100571 - 100571

Published: July 8, 2023

An effective and affordable technique for detecting a variety of substances biological, medical, environmental significance is electrochemical sensing (ECS). Due to their distinctive structures abilities offer robust electrocatalytic activity with little surface fouling, low cost, biocompatibility, simple electron transfer kinetics, carbon materials-based electrodes like graphene (GR) nanotube (CNT) are frequently used the development sensors. Since GR has large specific area, it can host number biomolecules still have decent detection sensitivity. Along important developments in synthesis, purification, conjugation, biofunctionalization GR, device integration technologies nanofabrication evolved. Combinations aforementioned characteristics accelerated GR-based sensors many critical bio-analyses. The rapid bioanalyses better sensitivity selectivity been facilitated by combination features. Direct transport between enzyme active electrode region made possible application GR. It easily construct execute on-site oxidases dehydrogenases improved thanks excellent electro-catalytic activities on redox reaction hydrogen peroxide (H2O2) nicotinamide adenine dinucleotides (NADH). GR's oxidation NADH, thiols, H2O2, other interfering species occurs at potentials, use effectively suppresses these species. two benefits clinical chemistry, food quality control, wastewater treatment, bioprocessing great resistance fouling selectivity.

Language: Английский

Laser‐induced Graphene in Facts, Numbers, and Notes in View of Electroanalytical Applications: A Review DOI
Kateryna Muzyka, Guobao Xu

Electroanalysis, Journal Year: 2021, Volume and Issue: 34(4), P. 574 - 589

Published: Sept. 28, 2021

Abstract In this review, laser‐induced graphene (LIG) ‐based electrodes are discussed by covering such essential areas, as a characterization of LIG material properties necessary for electroanalysis, including data on sheet resistance, wettability, spatial resolution, electrochemical characteristics, well correlations “process” ‐ “properties” “electroanalytical characteristics”of LIG‐electrodes. Moreover, typical and innovative LIG‐based designs electroanalytical applications, combined multi‐analyte multimodal wearable sensors, interdigitated electrodes, shown. The related to in electroanalysis summarized tables. authors also recent applications. Close attention has been paid glucose sensors biosensors.

Language: Английский

Citations

62

Process-property correlations in laser-induced graphene electrodes for electrochemical sensing DOI Creative Commons
Arne Behrent, Christian Griesche,

Paul Sippel

et al.

Microchimica Acta, Journal Year: 2021, Volume and Issue: 188(5)

Published: April 7, 2021

Abstract Laser-induced graphene (LIG) has emerged as a promising electrode material for electrochemical point-of-care diagnostics. LIG offers large specific surface area and excellent electron transfer at low-cost in binder-free rapid fabrication process that lends itself well to mass production outside of the cleanroom. Various micromorphologies can be generated when altering energy input parameters, it was investigated here which impact this on their electroanalytical characteristics performance. Energy is controlled by laser power, scribing speed, pulse density. Once threshold required reached broad spectrum conditions leads with ranging from delicate irregular brush structures obtained fast, high input, smoother more wall like albeit still porous materials. Only fraction these provided conductance appropriate Here, found low, frequent best material, i.e., low levels power speed combination spatial For example, sensitivity reduction K 3 [Fe(CN) 6 ] increased almost 2-fold changing parameters 60% 100% 1% 10% speed. These general findings translated any independent devices used. The simple electrodes, good performance demonstrated variety (bio)analytically relevant molecules including ascorbic acid, dopamine, uric p-nitrophenol, paracetamol, possible application biological samples make them ideal inexpensive transducers (bio)sensors, potential replace screen-printed systems currently dominating on-site sensors

Language: Английский

Citations

61

Laser Micro/Nano‐Structuring Pushes Forward Smart Sensing: Opportunities and Challenges DOI
Yabin Zhang, Xiangyu Wang, Kai Yan

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(8)

Published: Dec. 7, 2022

Abstract Post‐pandemic era poses an imperative demand on progressive sensing devices whose performance largely relies the morphologies and structures of materials. Despite substantial efforts advances that have been made in materials with different micro/nanoscale dimensionalities, it is still challenging to couple micro/nano platforms together for precise scalable production high‐performance sensors toward practical application scenarios. Owing noncontact, precise, high‐efficiency features, laser micro/nanofabrication offers a promising solution achieve high‐quality novel functionalities relatively short time. Herein, this review begins glance over development micro/nano‐structured briefly discusses importance micro/nanostructuring technology micro/nano‐engineering sensors. Next, representative processing methods are elaborated detail from laser‐pulse‐type point view, potential applications chemical, physical, biological targets based mechanisms summarized. Finally, perspectives opportunities challenges strategies micro/nanosensors presented.

Language: Английский

Citations

44

One-step laser synthesis platinum nanostructured 3D porous graphene: A flexible dual-functional electrochemical biosensor for glucose and pH detection in human perspiration DOI
Ying Wang, Haojie Guo, Min Yuan

et al.

Talanta, Journal Year: 2023, Volume and Issue: 257, P. 124362 - 124362

Published: Feb. 13, 2023

Language: Английский

Citations

42

Recent developments in electrochemical sensors based on graphene for bioanalytical applications DOI Creative Commons
Abdulazeez T. Lawal

Sensing and Bio-Sensing Research, Journal Year: 2023, Volume and Issue: 41, P. 100571 - 100571

Published: July 8, 2023

An effective and affordable technique for detecting a variety of substances biological, medical, environmental significance is electrochemical sensing (ECS). Due to their distinctive structures abilities offer robust electrocatalytic activity with little surface fouling, low cost, biocompatibility, simple electron transfer kinetics, carbon materials-based electrodes like graphene (GR) nanotube (CNT) are frequently used the development sensors. Since GR has large specific area, it can host number biomolecules still have decent detection sensitivity. Along important developments in synthesis, purification, conjugation, biofunctionalization GR, device integration technologies nanofabrication evolved. Combinations aforementioned characteristics accelerated GR-based sensors many critical bio-analyses. The rapid bioanalyses better sensitivity selectivity been facilitated by combination features. Direct transport between enzyme active electrode region made possible application GR. It easily construct execute on-site oxidases dehydrogenases improved thanks excellent electro-catalytic activities on redox reaction hydrogen peroxide (H2O2) nicotinamide adenine dinucleotides (NADH). GR's oxidation NADH, thiols, H2O2, other interfering species occurs at potentials, use effectively suppresses these species. two benefits clinical chemistry, food quality control, wastewater treatment, bioprocessing great resistance fouling selectivity.

Language: Английский

Citations

38