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Efficient Carbon-Based Optoelectronic Synapses for Dynamic Visual Recognition.
Adv Sci (Weinh)
January 2025
Haiping Fang, School of Physics, East China University of Science and Technology, Shanghai, 20023, China.
The human visual nervous system excels at recognizing and processing external stimuli, essential for various physiological functions. Biomimetic visual systems leverage biological synapse properties to improve memory encoding and perception. Optoelectronic devices mimicking these synapses can enhance wearable electronics, with layered heterojunction materials being ideal materials for optoelectronic synapses due to their tunable properties and biocompatibility.
View Article and Find Full Text PDFEnhancing Interfacial Interactions Through Microwave-Irradiated Reduction for the Recycling of Photovoltaic Silicon Waste for Lithium Storage.
Small
January 2025
School of Energy Science and Engineering and Jiangsu Key Laboratory of Process Enhancement and New Energy Equipment Technology, Nanjing Tech University, Nanjing, Jiangsu Province, 211816, China.
The application of micro-nano size photovoltaic waste silicon (wSi) as an anode material for lithium-ion battery holds significant practical potential; However, it faces a series of challenges related to the volume expansion of Si during cycling. In this study, a simple, efficient, and eco-friendly microwave method is proposed for the rapid preparation of graphene-coated silicon materials (wSi@rGO) in just a few seconds, in which graphene as the stable interface mitigates structural failure caused by significant volume expansion, enhances electron and ion conductivity, inhibits undesirable side reactions between silicon and electrolyte, and promotes the stability of solid electrolyte interface (SEI). Importantly, the instantaneous high temperature generated by microwaves facilitates the formation of interfacial SiC chemical bonds, which strengthen the interaction between Si and graphene, thereby reducing Si delamination.
View Article and Find Full Text PDFON-OFF nanopores for optical control of transmembrane ionic communication.
Nat Nanotechnol
January 2025
Department of Chemistry, University of Oxford, Oxford, UK.
Nanoscale photoswitchable proteins could facilitate precise spatiotemporal control of transmembrane communication and support studies in synthetic biology, neuroscience and bioelectronics. Here, through covalent modification of the α-haemolysin protein pore with arylazopyrazole photoswitches, we produced 'photopores' that transition between iontronic resistor and diode modes in response to irradiation at orthogonal wavelengths. In the diode mode, a low-leak OFF-state nanopore exhibits a reversible increase in unitary conductance of more than 20-fold upon irradiation at 365 nm.
View Article and Find Full Text PDFAn Activatable Chemiluminescent Self-Reporting Sulfur Dioxide Donor for Inflammatory Response and Regulation of Gaseous Vasodilation.
ACS Sens
January 2025
State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials Oriented Chemical Engineering, Dalian University of Technology, Dalian 116024, China.
Sulfur dioxide (SO), being a novel gaseous signaling molecule, exhibits significant potential for application in the field of cardiovascular diseases. SO donors serve as crucial tools for the transportation and regulation of SO in vivo, facilitating the investigation of physiological roles associated with this molecule. However, the current therapeutic SO donors lack the capability to monitor the real-time release of SO, thereby hindering accurate assessment of their therapeutic efficacy and target localization.
View Article and Find Full Text PDFChemometrics and digital image colorimetry approaches applied to paper-based analytical devices: A review.
Anal Chim Acta
February 2025
Laboratório de Sensores Químicos Portáteis, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, 13083-861, Brazil. Electronic address:
Colorimetric paper-based analytical devices (CPADs) are cost-efficient and high-throughput technologies that use readily available materials for point-of-need (PON) applications by leveraging color changes in response to target analytes. However, the complexity of samples can limit the precision and accuracy of CPAD applications. Therefore, CPADs have been combined with chemometric approaches to enhance analytical performance and provide simple solutions to complex systems.
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