An electrochemical sensing platform based on carbon black and chitosan-stabilized platinum nanoparticles

Silva, Tiago; Lourenção, Bruna C.; Silva, Alexsandra Dias da; Fatibello‐Filho, Orlando

doi:10.1039/d2ay01964g

Cited by 5 publications

(3 citation statements)

References 59 publications

(71 reference statements)

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“…The incorporation of carbon nanomaterials such as graphene, carbon nanotubes, and carbon nanofibers into CTS-based structures presents significant potential in sensor technology, particularly in the pharmaceutical field. Carbon-based nanomaterials contribute to remarkable conductivity and substantial contact surface area, enabling the detection of pharmaceutical substances even at nanomolar concentrations, and making them valuable components in the design of electrochemical sensors based on CTS [57,58].…”

Section: Electrochemical Sensors Based On Cts and Carbon Nanomaterialsmentioning

confidence: 99%

“…This stability is attributed to the strong intermolecular interactions within the CTS structure, including hydrogen bonding and electrostatic interactions with the substrate. Such resilience makes CTS an attractive material for various applications, including electrochemical sensors, where the stability of the film can enhance the sensor's performance, reliability, and lifespan [58]. Further studies exploring the mechanisms behind this stability and potential enhancements through modifications or combinations with other materials could open new avenues for innovation in sensor design and other fields [60,[89][90][91].…”

Section: Electrochemical Sensors Based On Cts and Conducting Polymersmentioning

confidence: 99%

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Chitosan-Based Electrochemical Sensors for Pharmaceuticals and Clinical Applications

Bounegru,

Bounegru

2023

Polymers

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Chitosan (CTS), a biocompatible and multifunctional material derived from chitin, has caught researchers’ attention in electrochemical detection due to its unique properties. This review paper provides a comprehensive overview of the recent progress and applications of CTS-based electrochemical sensors in the analysis of pharmaceutical products and other types of samples, with a particular focus on the detection of medicinal substances. The review covers studies and developments from 2003 to 2023, highlighting the remarkable properties of CTS, such as biocompatibility, chemical versatility, and large surface area, that make it an excellent candidate for sensor modification. Combining CTS with various nanomaterials significantly enhances the detection capabilities of electrochemical sensors. Various types of CTS-based sensors are analyzed, including those utilizing carbon nanomaterials, metallic nanoparticles, conducting polymers, and molecularly imprinted CTS. These sensors exhibit excellent sensitivity, selectivity, and stability, enabling the precise and reliable detection of medications. The manufacturing strategies used for the preparation of CTS-based sensors are described, the underlying detection mechanisms are elucidated, and the integration of CTS sensors with transducer systems is highlighted. The prospects of CTS-based electrochemical sensors are promising, with opportunities for miniaturization, simultaneous detection, and real-time monitoring applications.

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Section: Electrochemical Sensors Based On Cts and Carbon Nanomaterialsmentioning

confidence: 99%

Section: Electrochemical Sensors Based On Cts and Conducting Polymersmentioning

confidence: 99%

Chitosan-Based Electrochemical Sensors for Pharmaceuticals and Clinical Applications

Bounegru,

Bounegru

2023

Polymers

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“…Chitosan can be obtained from the deacetylation of chitin, and it is popularly used in combination with nanomaterials because of its good biocompatibility and excellent membrane-forming capacity, which makes it suitable for developing sensors [34][35][36][37]. Herein, a sensitive electrochemical sensor based on AuPtPd trimetallic nanoparticlesfunctionalized multi-walled carbon nanotubes coupled with chitosan modified glassy carbon electrode (GCE/CS/MWCNTs-AuPtPd) is proposed to realize the detection of BPA in food.…”

Section: Introductionmentioning

confidence: 99%

Development of Sensitive Electrochemical Sensor Based on Chitosan/MWCNTs-AuPtPd Nanocomposites for Detection of Bisphenol A

Han

Pan

et al. 2023

Chemosensors

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An electrochemical sensor based on AuPtPd trimetallic nanoparticles functionalized multi-walled carbon nanotubes coupled with chitosan modified glassy carbon electrode (GCE/CS/MWCNTs-AuPtPd) was proposed for the rapid detection of bisphenol A (BPA). AuPtPd trimetallic nanoparticles were first assembled on MWCNTs to obtain MWCNTs-AuPtPd nanocomposite. Then, the MWCNTs-AuPtPd was further dispersed on the chitosan-modified electrode surface to fabricate the GCE/CS/MWCNTs-AuPtPd sensor. Due to the superior catalytic properties of MWCNTs-AuPtPd and the good film formation of chitosan, the constructed sensor displayed good performances for BPA detection. The structural morphology of CS/MWCNTs-AuPtPd was characterized in many ways, such as SEM, TEM and UV-vis. The designed sensor showed a linear relationship in concentration range from 0.05 to 100 µM for BPA detecting, and the detection limit was 1.4 nM. The GCE/CS/MWCNTs-AuPtPd was further used to realize the detection of BPA in food samples, and the recovery was between 94.4% and 103.6%. Those results reflected that the electrochemical sensor designed by CS/MWCNTs-AuPtPd nanocomposites was available, which could be used for the monitoring of food safety.

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Adsorption‐Based Electrochemical Sensor Design for the Aqueous Detection of Paracetamol

De Smedt,

Lauwers,

Vereecken

et al. 2024

Adv Eng Mater

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This study investigates the critical role of adsorption in the development of electrochemical sensors, focusing on carbon (Vulcan XC72R, acetylene black, and graphite) and zeolite (high‐silica ZSM‐5 and all‐silica zeolite β) materials. Based on the paracetamol adsorption characteristics of these materials, an optimized disposable electrochemical sensor is created. This sensor exhibits a linear range of up to 5 μM and a remarkable detection limit of 150 nM (S/N = 3), ≈1000‐time improvement over the blank sensor. Moreover, paracetamol can be measured selectively because glucose has no adsorption affinity for the selected sensor materials. These findings underscore the significance of adsorption properties in sensor material selection in enhancing sensitivity and robustness against interfering species.

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An electrochemical sensing platform based on carbon black and chitosan-stabilized platinum nanoparticles

Abstract: The versatility of chitosan (Ch) biopolymer as a metallic nanoparticle stabilizing agent and excellent former of thin films on glassy carbon was explored in this work for the sustainable manufacture...

Cited by 5 publications

References 59 publications

Chitosan-Based Electrochemical Sensors for Pharmaceuticals and Clinical Applications

Chitosan-Based Electrochemical Sensors for Pharmaceuticals and Clinical Applications

Development of Sensitive Electrochemical Sensor Based on Chitosan/MWCNTs-AuPtPd Nanocomposites for Detection of Bisphenol A

Adsorption‐Based Electrochemical Sensor Design for the Aqueous Detection of Paracetamol

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