Design and fabrication of electrodes is key in the development of electrochemical sensors with superior electrochemical performances. Herein, an enzymeless electrochemical sensor is developed for detection of hydrogen peroxide based on the use of highly ordered polyoxometalate (POM)-doped polyaniline (PANI) nanopillar films. The electrodeposition technique enables the entrapment of POMs into PANI during electropolymerization to produce thin coatings of POM-PANI. Electrochemical investigations of the POM-PANI/nanopillar electrode showed well-defined multiple pairs of redox peaks and rapid electron transfer. The nanopillar structure facilitated the diffusion of the electrolyte and thus, enhanced the redox reaction. In particular, the POM-PANI/nanopillar electrode was incorporated into a flow injection biosensor and it demonstrates its electrocatalytic activity to detect hydrogen peroxide with high sensitivity, rapid response time, and low detection limit.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c5an02134k | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparative Study of Anti-COVID Mouthwash and Remineralization Agents on Dentinal Tubular Occlusion: An Study.
J Int Soc Prev Community Dent
December 2024
Assistant professor, Oral and Dental Disease Research Center, Department of Operative Dentistry, Faculty of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
Aim: Tooth sensitivity caused by exposed dentin tubules is a common clinical problem requiring correct treatment methods. Owing to the spread of the COVID-19 virus, it has become common to use different mouthwashes, including 1.5% hydrogen peroxide (HP), before dental procedures.
View Article and Find Full Text PDFImproving stabilization of α-tocopherol and α-tocopheryl acetate against oxidation, light and UV radiation by complexation with β-cyclodextrin and starch.
J Food Sci Technol
January 2025
Agricultural Biochemistry Department, Faculty of Agriculture, Ain-Shams University, P.O. Box 68, Hadayek Shoubra, Cairo 11241 Egypt.
Unlabelled: Despite the remarkably high antioxidant activity of tocopherols, their applications in the food industry are limited because of their instability under various conditions. Complexes of α-tocopherol (α-TQ) or α-tocopheryl acetate (α-TQA) with β-cyclodextrin (β-CD) or starch were prepared and characterized by UV-vis, IR and thermal analysis. Oxidative stability of α-TQ and α-TQA against HO was 74.
View Article and Find Full Text PDFHuman head and neck cancer cell lines response to cold atmospheric plasma activated media is affected by the chemistry of culture media.
Heliyon
January 2025
UdA-TechLab, Research Center, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy.
Survival rate of head and neck squamous cell carcinomas (HNSCC) patients are still to date very poor, and the application of innovative clinical approaches are urgently needed. Cold atmospheric plasmas (CAPs) are partially ionized gases that have shown anti-tumor effectiveness over a wide range of cancer types with potential application into clinics. However, the comprehension of the mechanisms underlying indirect CAP effects plays a key role for the prediction of treatment outcomes.
View Article and Find Full Text PDFSirtuin 1 Suppresses Hydrogen Peroxide-Induced Senescence and Promotes Viability and Migration in Lens Epithelial Cells by Inhibiting Forkhead Box Protein O1/Toll-Like Receptor 4 Pathway.
J Biochem Mol Toxicol
February 2025
Department of Ophthalmology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
Age-related cataracts (ARCs) are associated with increased oxidative stress and cellular senescence. Our objective is to investigate the function of Sirtuin 1 (SIRT1) within ARCs. In ARCs tissues and HO-treated lens epithelial cells (LECs), the expression levels of SIRT1 were examined.
View Article and Find Full Text PDFSynthesis of UiO-66-NH@PSF Hollow Fiber Membrane with Enhanced Simultaneous Adsorption of Pb and Phosphate for Hydrogen Peroxide Purification.
ACS Appl Mater Interfaces
January 2025
Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China.
Electronic grade hydrogen peroxide plays a crucial role in the fabrication of large-scale integrated circuits. However, hydrogen peroxide prepared by the anthraquinone method contains impurities such as lead ions (Pb) and phosphate, which can seriously affect the yield of the circuit. Traditional adsorbent materials have difficulty in solving the problem of simultaneous adsorption of trace anions and cations in hydrogen peroxide due to the single adsorption site and poor adsorption kinetics.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!