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The liquid-liquid interface offers a confined space to control the growth of nanomaterials. In this study, Fe(II) (water phase) induced Meso-tetra (4-carboxyphenyl) porphyrin (HTCPP) (CHCl, organic phase) into nanoaggregates (Fe-TCPP) in the liquid-liquid interface. By tuning the ratio of DMF in organic solvents, Fe(II) induced HTCPP into two nanoaggregates (Fe-TCPP-1 and Fe-TCPP-2) with different morphologies via coordination interaction occurring at the water-CHCl interface. Interestingly, the Fe-TCPP nanoaggregates possess dual enzyme-like activity (peroxidase-like and oxidase-like activity). In particular, both Fe-TCPP-1 and Fe-TCPP-2 demonstrate a peroxidase-/oxidase-like activity under visible light irradiation that is higher than that in the dark. Comparatively, Fe-TCPP-2 exhibits enhanced peroxide-like (POD) activity together with oxidase-like (OXD) activity compared with that of Fe-TCPP-1 under the corresponding similar conditions. The excellent enzyme mimic activity of Fe-TCPP nanozymes is ascribed to the generated hydroxyl radicals (·OH) and superoxide anions (O). Remarkably, the catalytic activity of Fe-TCPP-2 remains more than 90% even in the higher temperature range of 35-40 °C, which is significant for biological detection under physiological conditions. Based on the outstanding dual enzyme-like activity of Fe-TCPP-2, a colorimetric sensing platform for methimazole (an antithyroid medicine) has been developed, demonstrating a linear detection range of 10-100 μM and a detection limit of 4.44 μM.
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http://dx.doi.org/10.1021/acs.langmuir.4c02842 | DOI Listing |
Adv Colloid Interface Sci
August 2025
Institute of Mechanics, Moscow State University, Moscow 119192, Russia.
CO₂ geological utilization and storage involve complex multiphase interfacial behaviors that significantly influence the overall efficiency. Recently, bio-based materials have attracted increasing attention as promising candidates for interfacial regulation owing to their structural diversity, abundance, and environmental compatibility. This review summarizes recent advances in utilizing biomass-derived materials to regulate interfacial behaviors in subsurface multiphase systems.
View Article and Find Full Text PDFNat Commun
August 2025
i-Lab, Nano-X Vacuum Interconnected Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu, PR China.
The hydrovoltaic effect, based on interactions at the solid-liquid interface, offers a promising route for ion sensing. However, it is hampered by long response times, typically several minutes, due to slow ion diffusion equilibrium in nanochannels. Here, we demonstrate a rapid, flexible hydrovoltaic ion sensing strategy enabled by fast ion transport.
View Article and Find Full Text PDFEnviron Res
August 2025
Department of Science and Environmental Studies, The Education University of Hong Kong, 00852, Hong Kong, China.
Contact-electro-catalysis (CEC) technology, recognized as an innovative catalytic approach, has attracted significant interest due to its unique reaction mechanisms and broad application potential in environmental pollution control. This technology enables efficient degradation of diverse organic pollutants, including antibiotics, dyes, and perfluorinated compounds, by converting mechanical energy into chemical energy and facilitating electron transfer at solid-liquid or liquid-liquid interfaces. Its attributes of simplicity, low energy consumption, and high efficiency underscore its promise for pollution management.
View Article and Find Full Text PDFLab Chip
August 2025
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China.
Mass transfer in conventional microchannels primarily relies on wall-mediated diffusion or is compromised by dynamic instability at free interfaces, which limits interphase transport efficiency. Inspired by the hierarchical trichomes of leaves, we designed composite architectures featuring spatially selective hydrophilic modification polydopamine (PDA) grafting, which enhance mass transfer while maintaining interface stability in microchannels. High-speed imaging was used to capture the dynamic evolution of interfacial morphology, revealing failure behaviours consistent with theoretical analysis.
View Article and Find Full Text PDFAdv Colloid Interface Sci
November 2025
Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710129, Shaanxi, PR China. Electronic address:
Phase transitions, as fundamental phenomena in physical sciences, are well-studied and a full theoretical framework has been established. The research has recently expanded into biological sciences after the milestone discovery of liquid-liquid phase separation (LLPS), and the latest studies are focusing not only LLPS but also liquid-solid phase transition (LSPT). These phase transitions are important fundamental biological processes such as formation of membraneless organelles, and pathogenesis of diseases such as neurodegenerative diseases, type 2 diabetes, and amyloidogenic disorders.
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