Carbon Fiber Paper Sensor for Determination of Trimethoprim Antibiotic in Fish Samples

Article Chemistry, Analytical

Nitrogen and sulfur co-doped graphene quantum dot-modified electrode for monitoring of multivitamins in energy drinks

Eduardo Constante Martins et al.

Summary: In this study, a modified glassy carbon electrode with nitrogen and sulfur co-doped graphene quantum dots immobilized in chitosan was used for the monitoring and quantification of multivitamins.

TALANTA (2023)

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Article Chemistry, Multidisciplinary

Highly conductive fiber with design of dual conductive Ag/CB layers for ultrasensitive and wide-range strain sensing

Ben Niu et al.

Summary: The demand for wearable electronics has prompted the development of flexible strain sensors. In this study, a highly stretchable fiber strain sensor based on wet-spun porous polyurethane (PU) fiber was developed, with a unique conductive network of dual silver (Ag)/carbon black (CB) layers. This sensor exhibits high conductivity, ultrahigh sensitivity, wide working range, and stability for over 8000 cycles.

SMARTMAT (2023)

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Article Environmental Sciences

Environmental contamination in a high-income country (France) by antibiotics, antibiotic-resistant bacteria, and antibiotic resistance genes: Status and possible causes

Marisa Haenni et al.

Summary: Antimicrobial resistance (AMR) is a major global public health concern, and the Government of France commissioned a report to provide policy makers with evidential basis for actions to mitigate AMR in the environment. The study identified wastewater treatment plants as the major source of contamination on French territory, with organic waste products as a more diffuse and incidental contamination of aquatic environments.

ENVIRONMENT INTERNATIONAL (2022)

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Article Chemistry, Analytical

Electrochemical paper-based analytical devices containing magnetite nanoparticles for the determination of vitamins B2 and B6

Daniel F. Pereira et al.

Summary: Disposable electrochemical paper-based analytical devices were developed to quantify vitamins B-2 and B-6 in commercial dietary supplements. The devices showed enhanced sensitivity due to the addition of magnetite nanoparticles in the conductive ink. The results obtained from the devices were comparable to those from fluorescence spectrometry in terms of precision and accuracy.

MICROCHEMICAL JOURNAL (2022)

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Article Chemistry, Analytical

The simpler the better: Highly sensitive 17α-ethinylestradiol sensor based on an unmodified carbon paper transducer

Alvaro Torrinha et al.

Summary: A carbon fiber paper sensor was used for detection of estrogenic hormone 17 alpha-ethinylestradiol (EE2), achieving high sensitivity and selectivity through optimization of analytical conditions.

TALANTA (2022)

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Review Chemistry, Multidisciplinary

Functionalized Carbon-Based Electrochemical Sensors for Food and Alcoholic Beverage Safety

Zhongjie Yang et al.

Summary: The production of food and alcoholic beverages is vulnerable to various contaminants, and electrochemical sensors play a vital role in ensuring their quality. Carbon-based materials, such as carbon dots, carbon nanotubes, and graphene, have played an important role as electrochemical sensors in detecting different contaminants.

APPLIED SCIENCES-BASEL (2022)

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Article Chemistry, Analytical

Polyethylenimine-Based Electrochemical Sensor for the Determination of Caffeic Acid in Aromatic Herbs

Felipe Zamarchi et al.

Summary: An electrochemical sensor based on carbon paste modified with polyethyleneimine was developed and employed for the determination of caffeic acid in aromatic herbs. The sensor showed an enhancement of charge transfer and a higher current intensity for the electrochemical reaction of caffeic acid compared to the unmodified electrode.

CHEMOSENSORS (2022)

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Review Environmental Sciences

Pharmaceuticals in water as emerging pollutants for river health: A critical review under Indian conditions

Nitin Ranjan et al.

Summary: Pharmaceutical pollutants (PPs) from various sources are considered emerging pollutants (EPs) affecting river health by negatively impacting the biotic diversity. A River Health Index (RHI) based on six Indicator Group Scores (IGS) is used to assess river health, with Dissolved Oxygen Related Parameters (DORP), Nutrients (NT), and PPs identified as causative agents. The study highlights the inadequate effectiveness of current wastewater treatment technologies in removing PPs, which pose a risk to aquatic organisms and river health.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2022)

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Article Biotechnology & Applied Microbiology

Nanostructured ZnO-Based Electrochemical Sensor with Anionic Surfactant for the Electroanalysis of Trimethoprim

Vinoda B. Patil et al.

Summary: In this research, a nanostructured zinc oxide nanoparticle-modified carbon paste electrode (ZnO/CPE) was used along with an anionic surfactant and sodium dodecyl sulphate (SDS) to detect trimethoprim (TMP) through voltametric techniques. The electrode showed higher peak current than the original CPE. Various parameters such as pH, immersion time, scan rate, and concentration were studied. The TMP electrode process was found to be irreversible and diffusion controlled with two electrons transferred. The developed electrode proved effective in detecting TMP in pharmaceutical dosages and urine samples, indicating its potential in clinical and pharmaceutical sample analysis.

BIOENGINEERING-BASEL (2022)

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Review Chemistry, Multidisciplinary

Recent advances in electrochemical sensors for antibiotics and their applications

Qun Wang et al.

Summary: The abuse of antibiotics leads to drug-resistant strains and environmental pollution, emphasizing the need for effective detection techniques. Electrochemical sensors offer advantages such as high sensitivity and good selectivity, making them a focus in this field. The review discusses electrode modification methods, practical applications, and future challenges, aiming to provide new ideas for the development of antibiotics electrochemical sensors.

CHINESE CHEMICAL LETTERS (2021)

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Review Environmental Sciences

Antibiotics in surface water of East and Southeast Asian countries: A focused review on contamination status, pollution sources, potential risks, and future perspectives

Hoang Quoc Anh et al.

Summary: This review discusses the contamination status, sources, and ecological risks of antibiotics in surface water in East and Southeast Asia. Antibiotics were found to be ubiquitous in surface water, with different concentrations and distribution ranges in East Asian countries like China and South Korea compared to Southeast Asian nations. Effluent from wastewater treatment plants, aquaculture and livestock production activities, and urban sewage were identified as principal sources of antibiotics in surface water, while the ecological risks associated with antibiotic residues and antibiotic resistance were highlighted. Collaborative efforts from various stakeholders are necessary to manage and reduce the burden of antibiotics and antibiotic resistance in water bodies of East and Southeast Asian countries.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

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Article Chemistry, Analytical

Paper-based electrochemical sensors with reduced graphene nanoribbons for simultaneous detection of sulfamethoxazole and trimethoprim in water samples

Thiago S. Martins et al.

Summary: A paper-based fully printed electrochemical sensor with reduced graphene nanoribbons was developed for real-time monitoring of sulfamethoxazole (SMX) and trimethoprim (TMP) antibiotics in water samples. The sensor showed a linear response from 1 to 10 mu mol l-1 for both antibiotics and had detection limits of 0.09 mu mol l-1 for SMX and 0.04 mu mol l-1 for TMP, demonstrating its potential for monitoring water supply systems.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2021)

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Review Chemistry, Analytical

Electrochemical (bio)sensors based on carbon cloth and carbon paper: An overview

Alvaro Torrinha et al.

Summary: Carbon cloth and carbon paper possess unique characteristics suitable for designing efficient and disposable electrochemical sensors, enabling rapid detection of biomolecules and hazardous compounds. Their easy integration and portability make them promising for point-of-care diagnostics and in-situ measurements.

TRAC-TRENDS IN ANALYTICAL CHEMISTRY (2021)

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Review Engineering, Environmental