Recent Progress in Nanomaterial-based Electrochemical Biosensors for Hydrogen Peroxide Detection & their Biological Applications DOI

Gurdeep Kaur,

Aftab Ahmad, Iqubal Singh

et al.

Talanta, Journal Year: 2024, Volume and Issue: 286, P. 127447 - 127447

Published: Dec. 24, 2024

Language: Английский

Metal oxide/g-C3N4 nanocomposites chemiresistive gas sensors: A review on enhanced performance DOI Creative Commons

Vahid Khoramshahi,

Majid Azarang, Morteza Nouri

et al.

Talanta Open, Journal Year: 2024, Volume and Issue: 9, P. 100290 - 100290

Published: Jan. 26, 2024

Metal-oxide-semiconductors (MOS) gas sensors are widely used for detecting and measuring the concentration of various gases in different applications. Changing electrical resistance when MOS surface reacts with a specific is basis operation sensor MOS. They offer versatility fabricating them suitable supervising energy efficiency, monitoring health safety, controlling hazardous emissions. However, traditional suffer from poor selectivity usually require high operating temperatures. To overcome these limitations, researchers have explored strategies such as doping, bimetallic/co-doping, composite structures conductive polymers 2D materials polyaniline (PANI), polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), reduced graphene oxide (rGO), graphitic carbon nitride (g-C3N4), graphene. Among materials, g-C3N4 stands out due to its distinct characteristics, including chemical stability, porosity structure, abundance, lack toxicity, numerous defects. The exfoliated structure defects provide active sites adsorbing atmospheric oxygen facilitating reactions molecules. This review introduces sensors, covering their fabrication methods measurements. It then attentions on properties g-C3N4, synthesis methods, potential composition highlights enhanced sensing performance achieved by MOS/g-C3N4 nanocomposites detect gases.

Language: Английский

Citations

13
Mesoporous silica nanoparticles decorated with C3N4 framework as a novel electrocatalyst for the design of a selective clonazepam sensor DOI Creative Commons

Fardin Abedi,

Hamid Reza Rajabi, Mahmoud Roushani

et al.

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 29, P. 5731 - 5740

Published: March 1, 2024

In this study, a new chemical modifier based on copper nitrate hydroxide-containing mesoporous silica decorated with C3N4 framework (MSN/C3N4/CNH) was developed to design modified sensor for the determination of clonazepam (CZP). The resulting composite characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), energy-dispersive (EDS), simultaneous thermal analysis (STA), Brunauer-Emmett-Teller (BET) and Barrett Joyner–Halenda (BJH) analyses. fabricated electrochemical which designed glassy carbon electrode (GCE) CZP analysis, exhibits outstanding electrocatalytic activities toward reduction CZP. results showed that significant sensitivity compared existing methods improved an excellent detection limit 2.50 nmol L−1 detection, has high activity oxidation CZP, peak around 0.32 V, lower −0.78 V; at pH = 7.0. effect experimental instrumental factors response examined, cyclic voltammetric confirmed 4H+/4e− process in studies. Moreover, differential pulse voltammetry, current proportional concentration from 0.82 76.90 μmol L−1, optimum conditions. good reproducibility, repeatability relative standard deviation values 2.7% 1.2%, respectively. proposed method can be applied as simple, selective, precise determine drug real samples, satisfactory results.

Language: Английский

Citations

5
Synthesis of CuO/WO3/gC3N4 nanocomposite for the sensitive and selective electrochemical detection of H2O2 DOI

Eya Fatnassi,

Amira Nahdi,

Hanen Khadhraoui

et al.

Journal of Solid State Electrochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

Citations

0
CNTs/Graphene Oxide‐Nickel Phosphate Nanocomposite‐Based Electrochemical Sensor for Detecting H2O2 in Human Serum DOI
Asmaa R.M. El-Gohary, Ahmed Galal, Nada F. Atta

et al.

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(31)

Published: Aug. 16, 2023

Abstract Monitoring H 2 O levels in human serum is vital as it a biomarker for oxidative stress‐induced diseases and neurodegenerative disorders. Thus, an efficient electrochemical sensor developed detecting real samples. The fabricated by modifying the GC surface with two consecutive thin layers namely carbon nanotubes (CNTs), graphene oxide‐nickel phosphate composite (GRO‐NIPO). Under optimized conditions, shows excellent catalytic effect concentration range (7 nM to 600 μM) low detection limit 0.55 1 μM). combined of activity GRO‐NIPO nanocomposite large conductive area CNTs improve sensor's performance. negative reduction potential at −570 mV improves anti‐interference ability toward common interfering species biological fluids. layered modified electrode offers good sensitivity compared other electrodes some methods cited literature. Besides, exhibits stable response over four weeks, selectivity, reproducibility, repeatability, steadiness. reliability test sample recovery .

Language: Английский

Citations

9
Development of tungsten trioxide nano-flakes intercalated on tannic acid-functionalized reduced graphene oxide for flexible acebutolol sensors DOI
Wesley Wei‐Wen Hsiao,

Subash Vetri Selvi,

Krishnapandi Alagumalai

et al.

Talanta, Journal Year: 2024, Volume and Issue: 279, P. 126609 - 126609

Published: July 24, 2024

Language: Английский

Citations

2
Revolutionising pesticide detection: a high-sensitivity electrochemical sensor with CdS/g-C 3 N 4 /MWCNTs for paraquat monitoring DOI
Mohamad Idris Saidin, Illyas Md Isa, Mohamad Saufi Rosmi

et al.

International Journal of Environmental & Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 15

Published: May 17, 2024

Over a decade, the Malaysia National Poison Centre found that 40% of pesticide poisoning cases may be linked to excessive paraquat (PQ) in water, soil, or food, underscoring widespread impact on public health and emphasising importance detecting even trace amounts PQ residues environment. Thus, this study presents novel electrochemical sensor based multiwalled carbon nanotubes (MWCNTs) reinforced cadmium sulphide co-anchoring graphitic nitride (CdS/g-C3N4) nanocomposites for detection. The CdS/g-C3N4 nanocomposite was successfully synthesised characterised through FTIR, XRD, EDX, FESEM TEM analysis. modified electrode (CdS/g-C3N4/MWCNTs PE) exhibited improved electrocatalytic activity, as demonstrated by cyclic voltammetry (CV) impedance spectroscopy. CdS/g-C3N4/MWCNTs PE displayed high CV peak low Rct value which corresponded higher electron transfer rate, reduced charge resistance enhanced mass transport properties. sensor's performance evaluated detection PQ, it linear response range 1.0 µM 0.1 mM with limit 0.14 μM. Furthermore, selectivity less than 16% potential interference from various organic chemicals inorganic ions. applicability tested quantifying real water samples, showing excellent recovery percentages ranging 98.9% 102.0%. developed provides practical solution rapid accurate monitoring levels This work establishes foundation development selective analysis, addressing both environmental concerns.

Language: Английский

Citations

1
Defect engineering of copper-doped mesoporous manganese dioxide nanoflowers for enhancing electrocatalytic detection of hydrogen peroxide DOI
Mao-Sung Wu,

Chiao-Fen Iang,

Sheng-Chieh Kung

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175194 - 175194

Published: June 14, 2024

Language: Английский

Citations

1
Flexible electrochemical sensor based on N-doped helical carbon nanotubes coated manganese oxide nanoparticles for real-time monitoring of cellular hydrogen peroxide release DOI
Fan Shi,

Jiaqi Geng,

Behisht Ara

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 207, P. 112194 - 112194

Published: Nov. 16, 2024

Language: Английский

Citations

0
Recent Progress in Nanomaterial-based Electrochemical Biosensors for Hydrogen Peroxide Detection & their Biological Applications DOI

Gurdeep Kaur,

Aftab Ahmad, Iqubal Singh

et al.

Talanta, Journal Year: 2024, Volume and Issue: 286, P. 127447 - 127447

Published: Dec. 24, 2024

Language: Английский

Citations

0