Electrochemical detection of nitrazepam using leaf-like graphitic carbon nitride nanosheets

Physica Scripta, Journal Year: 2023, Volume and Issue: 98(7), P. 075003 - 075003

Published: May 22, 2023

Abstract Benzodiazepines like nitrazepam are extensively used, both as prescribed medications and illicit drug substitutes, therefore detection is of prime importance. In this work, the electrochemical using a graphitic carbon nitride (g-C 3 N 4 ) modified electrode was investigated. The nitrogen-rich material i.e., g-C easily synthesized by thermal condensation method melamine precursor. platinum its activity tested three-electrode set-up. cyclic voltammetry impedance spectroscopy confirmed effective nitrazepam. at different concentrations analyzed CV differential pulse (DPV). limit 0.02 μ M found with linear dynamic range A repeatability experiment conducted to check stability proposed electrode. This study confirms potential use an stable for detector in field pharmaceuticals health care.

Language: Английский

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Hydrothermally Synthesized Z-Scheme Nanocomposite of ZIF-9 Modified MXene for Photocatalytic Degradation of 4-Chlorophenol

Langmuir, Journal Year: 2024, Volume and Issue: 40(11), P. 6004 - 6015

Published: March 7, 2024

4-Chlorophenol (4CP) is a well-known environmental contaminant often detected in wastewater, generally arising from industrial processes such as chemical manufacture, pharmaceutical production, and pesticide formulation. 4CP matter of great concern since it persistent has the potential to have harmful impacts on both aquatic ecosystems human health, owing its hazardous mutagenic properties. Hence, degradation utmost significance. This research investigates photocatalytic using novel Z-scheme heterojunction nanocomposite composed MXene ZIF-9. The synthesized through two-step hydrothermal method thoroughly characterized by XRD, SEM, UV–visible spectroscopy, zeta potential, electrochemical impedance spectroscopy studies, confirming successful fabrication with improved surface comparative studies between pristine materials were performed, significant enhancement performance was observed. effect pH efficiency also explored correlated charge. photocatalysis mechanism proposed, which supported time-resolved photoluminescence scavenger experiments. reusability evaluated. study contributes development efficient sustainable photocatalysts for wastewater treatment.

Language: Английский

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Electronic Tongue Based on ZnO/ITO@glass for Electrochemical Monitoring of Spiciness Levels

Langmuir, Journal Year: 2024, Volume and Issue: 40(8), P. 4434 - 4446

Published: Feb. 12, 2024

Capsaicin, a chemical compound present in chili peppers, is widely acknowledged as the main contributor to spicy and hot sensations encountered during consumption. Elevated levels of capsaicin can result meals being excessively spicy, potentially leading health issues, such skin burning, irritation, increased heart rate circulation, discomfort gastrointestinal system even inducing nausea or diarrhea. The level spiciness that individuals tolerate may vary, so what be considered incredibly for one person could mild another. To ensure food safety, human healthcare, regulatory compliance, quality control products, must measured. For these purposes, reliable stable sensor required quantify level. leverage effect zinc oxide (ZnO), herein, we demonstrated one-step fabrication process an electronic tongue (E-Tongue) based on electrochemical biosensor determination capsaicin. ZnO was electrodeposited indium tin (ITO) surface. two notable linear ranges from 0.01 50 μM 500 with limit detection (LOD) 2.1 nM. study also included analysis real samples, green chilis, red powder, dried evaluate their levels. Furthermore, E-Tongue exhibited degrees sensitivity, selectivity, long-term stability duration more than month. development real-time monitoring point-of-care (POC) device has potential impact various industries improve product quality, healthcare outcomes.

Language: Английский

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Investigation of complex hybrids in lithium salt under ultraviolet energy source

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(2)

Published: Jan. 1, 2024

Language: Английский

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Electrochemical and optical-based systems for SARS-COV-2 and various pathogens assessment

Advances in Natural Sciences Nanoscience and Nanotechnology, Journal Year: 2023, Volume and Issue: 14(3), P. 033001 - 033001

Published: Aug. 17, 2023

Abstract A critical step in the process for preventing and identifying emergencies relating to health, safety, welfare is testing quick diagnosis of microbial pathogens. Due fast spread waterborne food borne infections society high costs associated with them, pathogen identification has emerged as one most difficult parts water sectors. Since turn century, pathogens have demonstrated enormous epidemiological pandemic potential. The emergence dissemination a novel virus potential endanger livelihoods well-being individuals worldwide. severe acute respiratory syndrome-coronavirus-2 (SARS-COV-2) coronavirus propagated almost every country on Earth had considerable negative influence economies communities. Despite improvements techniques viral diseases, all nations must now execute biosensing speedy, sensitive, focused, consistent manner order address pressing global issues. Hence, this review, we critically summarised recent advancement electrochemical well optical biosensors monitoring SARS-COV-2 various Then, began by providing technical overview cutting-edge strategies utilised combat diseases it, including utilisation point-of-care technology (POCT), artificial intelligence (AI), internet medical things (IoMT). This review article explores integration POC, IoMT, AI technologies context personal healthcare, focusing their expedite treatment conditions, ultimately leading improved patient outcomes. Subsequently, notion execution multiplex are presented enhance comprehension detecting multiple analytes. Finally, conclusions future directions been presented.

Language: Английский

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A potential optical sensor based on nanostructured silicon

Journal of Materials Science Materials in Electronics, Journal Year: 2023, Volume and Issue: 34(8)

Published: March 1, 2023

Language: Английский

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Synergistic nanomaterials: zinc sulfide-polyaniline for ciprofloxacin electrochemical sensing

Applied Physics A, Journal Year: 2023, Volume and Issue: 129(12)

Published: Nov. 23, 2023

Language: Английский

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Synergistic photocatalysis: harnessing WSe2-ZnO nanocomposites for efficient malachite green dye degradation

The European Physical Journal Plus, Journal Year: 2023, Volume and Issue: 138(11)

Published: Nov. 27, 2023

Language: Английский

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Electrochemical detection of dopamine using WSe₂ microsheets modified platinum electrode

Physica Scripta, Journal Year: 2023, Volume and Issue: 98(10), P. 105006 - 105006

Published: Aug. 15, 2023

Abstract Transition metal dichalcogenides (TMDs) have been proven to possess many properties that are beneficial for the application of electrochemical detection. In this study, tungsten diselenide (WSe 2 ) was synthesized utilizing hydrothermal method and used modify platinum electrode. The behaviour WSe -modified electrode examined cyclic voltammetry (CV) impedance spectroscopy (EIS) methods. displays a wide linear range 5–100 μ M with correlation coefficient 0.986. detection limit found be 5 M. has good stability dependency on scan rate.

Language: Английский

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PEDOT:PSS, TiO₂ Nanoparticles, and Carbon Quantum Dot Composites as Ultraviolet Sensors

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(8), P. 9789 - 9799

Published: April 15, 2024

In this study, we have established an efficient method to develop a solution-processed ultraviolet (UV) sensor with easy fabrication, high response, and cost-effectiveness. Aiming at this, developed platform utilize the synergistic effect of hybrid network comprising conducting polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) inorganic organic UV sensitive materials, titanium dioxide (TiO2) nanoparticles carbon quantum dots (CQDs):TiO2 nanocomposites, respectively. With addition solvent dimethyl sulfoxide (DMSO) structural architecture film was altered, leading enhancement overall responsivity conductivity sensor. The modifications in were confirmed through Raman spectroscopy, whereby peak shifts detected. fabricated on silicon wafer (p-type) by using simple drop-cast technique. Upon illumination radiation film, change measured for light dark modes. proposed sensors demonstrated 48.6% response recovery times 235 360 s, respectively, on/off cycles, which substantially greater than that pristine PEDOT:PSS films, whose 7.27% 753 856 can be used sensing applications detection skin cancer, premature aging, several other UV-induced ailments.

Language: Английский

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