Recent developments in electrochemical sensors based on graphene for bioanalytical applications

Lawal, Abdulazeez Tunbosun

doi:10.1016/j.sbsr.2023.100571

Cited by 11 publications

(3 citation statements)

References 443 publications

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“…The two most important factors in the performance of electrochemical sensors are the resistance to charge transfer and the exchange current density [28]. Since the currentvoltage curve is affected by the nature and concentration of the electroactive species, it is essential to ensure that the electrode surface has an adequate surface area and high electrical conductivity [37], allowing rapid transfer that makes detection fast and accurate.…”

Section: Potentiometric Amperometric Conductimetricmentioning

confidence: 99%

Electronic Tongues and Noses: A General Overview

Tibaduiza,

Anaya,

Gómez

et al. 2024

Biosensors

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As technology advances, electronic tongues and noses are becoming increasingly important in various industries. These devices can accurately detect and identify different substances and gases based on their chemical composition. This can be incredibly useful in fields such as environmental monitoring and industrial food applications, where the quality and safety of products or ecosystems should be ensured through a precise analysis. Traditionally, this task is performed by an expert panel or by using laboratory tests but sometimes becomes a bottleneck because of time and other human factors that can be solved with technologies such as the provided by electronic tongue and nose devices. Additionally, these devices can be used in medical diagnosis, quality monitoring, and even in the automotive industry to detect gas leaks. The possibilities are endless, and as these technologies continue to improve, they will undoubtedly play an increasingly important role in improving our lives and ensuring our safety. Because of the multiple applications and developments in this field in the last years, this work will present an overview of the electronic tongues and noses from the point of view of the approaches developed and the methodologies used in the data analysis and steps to this aim. In the same manner, this work shows some of the applications that can be found in the use of these devices and ends with some conclusions about the current state of these technologies.

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Section: Potentiometric Amperometric Conductimetricmentioning

confidence: 99%

Electronic Tongues and Noses: A General Overview

Tibaduiza,

Anaya,

Gómez

et al. 2024

Biosensors

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“…Chronoamperometry was used to make the biochemical glucose detector and put it on the G-PLA surface to identify glucose in blood plasma. The process of making an enzyme immobile by binding it with glutaraldehyde works better if the polymeric binder has oxidized groups [290]. New materials, such as polylactic acid (PLA) and acrylonitrile butadiene styrene (ABS), showed how flexible and valuable FDM3D printing is for making electrochemical sensors using commercial graphene/PLA or carbon black/PLA filaments [291].…”

Section: D-printed Biosensorsmentioning

confidence: 99%

Promising New Horizons in Medicine: Medical Advancements with Nanocomposite Manufacturing via 3D Printing

Li,

Khan,

Chen

et al. 2023

Polymers

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Three-dimensional printing technology has fundamentally revolutionized the product development processes in several industries. Three-dimensional printing enables the creation of tailored prostheses and other medical equipment, anatomical models for surgical planning and training, and even innovative means of directly giving drugs to patients. Polymers and their composites have found broad usage in the healthcare business due to their many beneficial properties. As a result, the application of 3D printing technology in the medical area has transformed the design and manufacturing of medical devices and prosthetics. Polymers and their composites have become attractive materials in this industry because of their unique mechanical, thermal, electrical, and optical qualities. This review article presents a comprehensive analysis of the current state-of-the-art applications of polymer and its composites in the medical field using 3D printing technology. It covers the latest research developments in the design and manufacturing of patient-specific medical devices, prostheses, and anatomical models for surgical planning and training. The article also discusses the use of 3D printing technology for drug delivery systems (DDS) and tissue engineering. Various 3D printing techniques, such as stereolithography, fused deposition modeling (FDM), and selective laser sintering (SLS), are reviewed, along with their benefits and drawbacks. Legal and regulatory issues related to the use of 3D printing technology in the medical field are also addressed. The article concludes with an outlook on the future potential of polymer and its composites in 3D printing technology for the medical field. The research findings indicate that 3D printing technology has enormous potential to revolutionize the development and manufacture of medical devices, leading to improved patient outcomes and better healthcare services.

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“…Speci cally, graphene has a monolayer of carbon atoms and presents outstanding electron transfer kinetics, and biocompatibility [8,9]. Given their reduced dimensions, nanomaterials based on graphene have led to substantial exposure and interaction with biomolecules [10], electrochemical sensors [11][12][13], and supercapacitors [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Peptide Tritrpticin Interaction onto Chemically Modified Graphene Oxide Paste Electrode

Ramos,

Jesus,

Almeida

et al. 2024

Preprint

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The simple strategy to prepare Chemically Modified Carbon Paste Electrodes (CPE) by using Graphene Oxide (GO) was made to promote the desired interaction of antimicrobial Peptide Tritrpticin (TRP3) on them. This interaction was chosen considering the important study of biological sensors remarkable by GO and TRP3. The Interaction of CPEGO with TRP3 was characterized by FTIR and Electrochemical Techniques, that employed Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). The FTIR reveals some modifications of GO and GOTRP3 samples, with bands identified by functional polar groups and stretching mode C-N. CV results confirmed that GO promoted the interaction of TRP3 on the Carbon Paste Electrode by TRP3 adsorption on its oxidated defects sites with amplification current response. The oxidation peak potential shows a negative shift around 20 mV in the ferricyanide potassium presence, which indicates electron transfer between the GO and TRP3 was facilitated. EIS measurements show the interaction of TRP3 with GO with smaller electron transfer resistance as the almost linear portion of the Nyquist plot in comparison to CPE. The results indicate a Chemically Modified Carbon Paste Electrode with GO and TRP3 interactions is a potential electrode designed for biological sensor or drug delivery applications.

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Recent developments in electrochemical sensors based on graphene for bioanalytical applications

Cited by 11 publications

References 443 publications

Electronic Tongues and Noses: A General Overview

Electronic Tongues and Noses: A General Overview

Promising New Horizons in Medicine: Medical Advancements with Nanocomposite Manufacturing via 3D Printing

Peptide Tritrpticin Interaction onto Chemically Modified Graphene Oxide Paste Electrode

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