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ON-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 PDFA highly sensitive photoelectrochemical sensor for the detection of theophylline based on the photoelectrocatalytic activity of a nanocomposite of polydopamine nanospheres and gold nanoparticles.
Anal Methods
January 2025
School of Pharmacy, Wannan Medical College, Wuhu 241002, China.
A label-free photoelectrochemical (PEC) sensor for detecting theophylline (TP) was exploited based on electrodes modified with a nanocomposite of polydopamine nanospheres (PDSs) and gold nanoparticles (AuNPs). PDS particles were prepared by oxidative autopolymerization, and their reducibility was utilized in one step to reduce the gold nanoparticles . The AuNPs-PDS/ZnS PEC sensor was constructed by electrochemical deposition and drop coating.
View Article and Find Full Text PDFSynthesis of Mn-doped hollow octahedron ZnInS to enhance photocatalytic hydrogen production performance utilizing metal-organic framework as template.
J Colloid Interface Sci
April 2025
College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061 PR China.
Designing semiconductor photocatalysts with unique structures can improve the transfer efficiency of solar energy to hydrogen (H). In this study, a dual modification method of element doping and morphological control was used. The Mn-doped hollow octahedron ZnInS (ZHO-Mn) was synthesized by a simple one-pot solvothermal method using the octahedral Mn-based metal-organic framework (Mn-MOF) as a template.
View Article and Find Full Text PDFRecent Advances in the Tunable Optoelectromagnetic Properties of PEDOTs.
Molecules
January 2025
Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA.
Conducting polymers represent a crucial class of functional materials with widespread applications in diverse fields. Among these, poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have garnered significant attention due to their distinctive optical, electronic, and magnetic properties, as well as their exceptional tunability. These properties often exhibit intricate interdependencies, manifesting as synergistic, concomitant, or antagonistic relationships.
View Article and Find Full Text PDFCarbon-based light addressable potential aptasensor based on the synergy of C-MXene@rGO and OPD@NGQDs for low-density lipoprotein detection.
Mikrochim Acta
December 2024
School of Life and Environmental Sciences, School of Intellectual Property, Guilin University of Electronic Technology, Guilin, Guangxi, 541004, People's Republic of China.
A novel carbon-based light-addressable potentiometric aptasensor (C-LAPS) was constructed for detection low-density lipoprotein (LDL) in serum. Carboxylated TiC MXene @reduced graphene oxide (C-MXene@rGO) was used as interface and o-phenylenediamine functionalized nitrogen-doped graphene quantum dots (OPD@NGQDs) as the photoelectric conversion element. The photosensitive layers composed of OPD@NGQDs/C-MXene@rGO exhibit superior photoelectric conversion efficiency and excellent biocompatibility, which contribute to an improved response signal.
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