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Improving the Electrochemical and Electrochromic Properties of Copolymerized 3,4-Ethylenedioxythiophene with Pyrene.
Polymers (Basel)
December 2024
School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China.
Pyrene (Pr) was used to improve the electrochemical and electrochromic properties of polythiophene copolymerized with 3,4-ethylenedioxythiophene (EDOT). The corresponding product, poly(3,4-ethylenedioxythiophene-co-Pyrene) (P(EDOT-co-Pr)), was successfully synthesized by electrochemical polymerization with different monomer concentrations in propylene carbonate solution containing 0.1 M lithium perchlorate (LiClO/PC (0.
View Article and Find Full Text PDFMicrobe-mediated synthesis of defect-rich CeO nanoparticles with oxidase-like activity for colorimetric detection of L-penicillamine and glutathione.
Nanoscale
January 2025
College of Biotechnology and Pharmaceutical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, P.R. China.
To enhance production efficiency, curtail costs, and minimize environmental impact, developing simple and sustainable nanozyme synthesis methods has been the focus of relevant research. In this report, graphite-coated CeO nanoparticles (CeO NPs) with multiple defects (Ce defects, oxygen vacancies and carbon defects) were synthesized the culture filtrate of the extremely radioresistant bacterium R12 ( R12). The as-prepared CeO NPs exhibit remarkable oxidase (OXD)-like activity, efficiently catalyzing the oxidation of the chromogenic substrate 3,3',5,5'-tetramethylbenzidine (TMB) to form oxTMB, even in the absence of HO.
View Article and Find Full Text PDFCopigmentation effect on red cabbage anthocyanins, investigation of their cellular viability and interaction mechanism.
Food Res Int
January 2025
CSIR-Institute of Himalayan Bioresource Technology, Palampur, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Anthocyanins (ANS) are an appealing substitute to synthetic colorants; but their practical applicability is limited due to low color stability. Copigmentation can improve both complex's color stability as well as intensity. In this study, we examined the interaction of red cabbage ANS with copigments i.
View Article and Find Full Text PDFHCP-to-FCC Phase Transformation of Ruthenium Nanocrystals Selectively Activate Hydrogen Peroxide for Boosting Peroxidase-like Activity.
ACS Nano
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School of Chemistry and Chemical Engineering, Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, Wuhan University of Science and Technology, Wuhan 430081, P. R. China.
Due to the simultaneous activation of hydrogen peroxide (HO) and oxygen, Ru nanocrystals exhibit inherent peroxidase- and oxidase-like activities, thereby limiting their extensive application in biosensing. Phase engineering of Ru nanocrystals holds great promise for enhancing catalytic activity and selectivity but remains a challenge. Here, highly active Ru nanocrystals with a metastable face-centered cubic (fcc) structure were successfully synthesized via a facile wet-chemical method followed by an etching step, enabling selective activation of HO and demonstrating promising peroxidase-like activity.
View Article and Find Full Text PDFAdvances in Heavy Metal Sensing: Utilizing Immobilized Chromogenic Reagents, Nanomaterials Perovskite and Nanonzymes.
Crit Rev Anal Chem
January 2025
Department of Chemistry, University of Delhi, New Delhi, India.
Article Synopsis
- Heavy metal pollution poses serious health and environmental risks due to toxic metals being persistent in different ecosystems.
- Advances in sensor technology have enhanced real-time detection and monitoring methods, using innovative tools like immobilized chromogenic reagents, nanomaterials, perovskites, and nanozymes.
- The review delves into each technique's strengths and limitations while exploring trends in hybrid systems that utilize multiple approaches for improved effectiveness in heavy metal detection.
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