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| http://dx.doi.org/10.1002/anie.201104080 | DOI Listing |
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Rapid on-site colorimetric detection of arsenic(V) by NH-MIL-88(Fe) nanozymes-based ultraviolet-visible spectroscopic and smartphone-assisted sensing platforms.
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Background: Because arsenate (As(V)) is a highly toxic pollutant, timely on-site monitoring of its concentration is crucial for mitigating potential environmental and health hazards. Traditional on-site detection methods for As(V) often face limitations of long response time and low sensitivity. Nanozymes are nanomaterials that exhibit enzyme-like catalytic activity.
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College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450046, China. Electronic address:
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Chongqing Key Laboratory of New Drug Screening from Traditional Chinese Medicine, Integrative Science Center of Germplasm Creation in Western China (Chongqing) Science City, SWU-TAAHC Medicinal Plant Joint R&D Centre, College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China.
Two new polyacetylenes, (5,12)-14-hydroxytetradeca-5,12-dien-8,10-diyn-1-yl 3-methylbut-2-enoate () and 5, 1'-(6,12)-1-hydroxytetradeca-6,12-dien-8,10-diyn-5-yl 2-methylbutanoate (), together with two known ones, (2,8)-12--methylbutyryltetradeca-2,8-diene-4,6-diyne-1,14-diol (), and ()-5-[5-(but-3-en-1-yn-1-yl)thiophen-2-yl]pent-2-en-4-yn-1-yl acetate () were isolated from the ethyl acetate extract of the roots of by various chromatographic methods, such as normal phase silica gel column, MPLC, and semi-preparative HPLC. Their structures were identified by kinds of spectroscopic methods including 1D NMR, 2D NMR, IR, UV, HR-ESI-MS, and ECD. Compound exhibited cytotoxic activities in HepG2 and Huh7 cells with IC values of 20.
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Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, Hechi University, Hechi, Guangxi, China.
A new megastigmane glycoside, conspurcoside A (), two new phenol glycosides, conspurcosides B () and C (), along with twelve known compounds (-) were isolated from the bark of Croizat. The structures of these compounds were identified through analysis of spectroscopic data, including 1D and 2D NMR, HRESIMS, and ECD methods. Compounds (-, -) were tested for inhibition of NO production in lipopolysaccharide (LPS)-induced RAW 264.
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