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Development of HRP-assisted rGO-FET biosensors for high-precision measurement of serological steroid hormones.
Anal Chim Acta
January 2025
Department of Medical Biotechnology, College of Life Science and Biotechnology, Dongguk University, Seoul, 04620, Republic of Korea. Electronic address:
Background: Sarcopenia, which is associated with many pathways and molecular mechanisms, not only deteriorates the quality of life in old age but is also linked to various diseases. The ratio between cortisol and dehydroepiandrosterone sulfate (DHEAS) was utilized as a candidate method to diagnose sarcopenia. The hormones can fluctuate in concentration throughout the day, so monitoring the ratio between the two hormones is necessary.
View Article and Find Full Text PDFLattice Oxygen Redox Dynamics in Zeolite-Encapsulated CsPbBr Perovskite OER Electrocatalysts.
Adv Sci (Weinh)
January 2025
Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China.
Understanding the oxygen evolution reaction (OER) mechanism is pivotal for improving the overall efficiency of water electrolysis. Despite methylammonium lead halide perovskites (MAPbX) have shown promising OER performance due to their soft-lattice nature that allows lattice-oxygen oxidation of active α-PbO layer surface, the role of A-site MA or X-site elements in the electrochemical reconstruction and OER mechanisms has yet to be explored. Here, it is demonstrated that the OER mechanism of perovskite@zeolite composites is intrinsically dominated by the A-site group of lead-halide perovskites, while the type of X-site halogen is crucial for the reconstruction kinetics of the composites.
View Article and Find Full Text PDFDeciphering the Evolution of Current Distribution in Hybrid Silver Vanadium Oxide / Carbon Monofluoride Cathodes within Lithium Primary Batteries.
Chemphyschem
January 2025
Stony Brook University, Chemistry, Department of Chemistry, Stony Brook University, 11794, Stony Brook, UNITED STATES OF AMERICA.
For batteries to function effectively all active material must be accessible requiring both electron and ion transport to each particle. A common approach to generating the needed conductive network is the addition of carbon. An alternative approach is the electrochemically induced formation of conductive reaction products generated with intimate contact to the active material.
View Article and Find Full Text PDFAn Anthracene-imidazoanthraquinone Conjugate Exhibiting Ratiometric Fluorescence Turn - On Behavior with CN- and F- Anions.
Chempluschem
January 2025
Banaras Hindu University, Chemistry, Institute of Science, 221005, Varanasi, INDIA.
A new conjugate, 2-(4-(anthracen-9-yl) phenyl)-[1,2-d]imidazole-1H-anthraquninone (AQI) has been designed and synthesized as a molecular probe 4. The photophysical and electrochemical behavior of the probe in the absence and presence of different class of ions were examined in acetonitrile solution. The probe 4 with F- and CN- anions showed ratiometric fluorescence "turn - On" response due to variation in ICT processes.
View Article and Find Full Text PDFElectrochemical Aptamer-Based Biosensors for Cocaine Detection in Human Saliva: Exploring Matrix Interference.
Anal Chem
January 2025
Forensic Research & Development Department, Institute of Environmental Science and Research, PO Box 50348, Porirua 5240, New Zealand.
Electrochemical aptamer-based biosensors (E-aptasensors) are emerging platforms for point-of-care (POC) detection of complex biofluids. Human saliva particularly offers a noninvasive matrix and unprecedented convenience for detecting illicit drugs, such as cocaine. However, the sensitivity of cocaine E-aptasensors is significantly compromised in saliva.
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