Study of the heat destruction process of catalase crystals by the method of scanning microcalorimetry has revealed the influence of crystallographic modification on protein macromolecules denaturation at relatively low heating rates.
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Metabolomics-based study on the effect of low-voltage electrostatic field treatment on the storage quality of postharvest square bamboo shoots.
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School of Food Science and Bioengineering, Tianjin Agricultural College, Tianjin 300384, China.
Low-voltage electrostatic field (LP) enhances the freezing quality of food by increasing water supercooling and improving ice crystal morphology. This study explored the effects of LP treatment on the storage quality of square bamboo shoots using physicochemical, gas chromatography-mass spectrometry, and metabolomics methods. Results showed that with prolonged storage, the LP-treated group had lower activities of peroxidase, phenylalanine ammonia-lyase, and lower levels of malondialdehyde, cellulose, and lignin compared to the control group, while superoxide dismutase and catalase activities and shear force values were higher.
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State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China.
Hoverflies, capable of abilities providing dual ecosystem services including pest control and pollination, are exposed to insecticidal proteins from transgenic plants via pollen and prey aphids. However, the effects of such exposures on hoverflies have never been adequately assessed. Here, we investigated impacts of the most widely used biotoxin Cry1Ac on a representative hoverfly species Episyrphus balteatus through food chain transmission and active toxin exposure.
View Article and Find Full Text PDFMagnetically Responsive Enzyme and Hydrogen-Bonded Organic Framework Biocomposites for Biosensing.
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Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, Graz, 8010, Austria.
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View Article and Find Full Text PDFPhysicochemical properties and mechanism of action of a new copper(ii) pyrazine-based complex with high anticancer activity and selectivity towards cancer cells.
RSC Adv
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Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology Żeromskiego 116 Lodz 90-924 Poland
Two compounds, benzyl-2-(amino(pyrazin-2-yl)methylene)-1-methylhydrazine-1-carbodithioate (L) and its copper(ii) complex Cu(L) were synthesized and studied in terms of their physicochemical properties, including single crystal, spectroscopic and magnetic properties; simulations, including DFT calculations and pharmacokinetic profile analysis; and biological activity. The Cu(L) compound was found to exhibit good anticancer activity against A375, PANC-1, MKN-74, T-47D, HeLa, and NCI-H1563 cells, with the IC value against the HeLa cell line reaching 17.50 μM, significantly surpassing the activity of the organic ligand.
View Article and Find Full Text PDFPolylactic acid-based dressing with oxygen generation and enzyme-like activity for accelerating both light-driven biofilm elimination and wound healing.
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October 2024
School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, No. 1180, Shuanggang East Street, Qingshanhu District, Nanchang City, Jiangxi Province 330013, P.R. China.
Article Synopsis
- Photodynamic therapy (PDT) can effectively erase bacterial biofilms in infected wounds but struggles due to low oxygen levels in these environments.
- This study created a novel wound dressing, CN-MnO/PLLA, which integrates manganese dioxide nanoparticles to enhance oxygen delivery and improve the efficacy of PDT.
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