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Calprotectin's Protein Structure Shields Ni-N(His) Bonds from Competing Agents.
J Phys Chem Lett
January 2025
State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
The Ni-N(His) coordination bond, formed between the nickel ion and histidine residues, is essential for recombinant protein purification, especially in Ni-NTA-based systems for selectively binding polyhistidine-tagged (Histag) proteins. While previous studies have explored its bond strength in a synthetic Ni-NTA-Histag system, the influence of the surrounding protein structure remains less understood. In this study, we used atomic force microscopy-based single-molecule force spectroscopy (AFM-SMFS) to quantify the Ni-N(His) bond strength in calprotectin, a biologically relevant protein system.
View Article and Find Full Text PDFUnderstanding the reproductive ecology of Macrognathus aculeatus in wetland (Gajner beel) ecosystem: insights into eco-climatic influences in northwestern Bangladesh.
Environ Sci Pollut Res Int
January 2025
Department of Fisheries, University of Rajshahi, Rajshahi, 6205, Bangladesh.
The lesser spiny eel, Macrognathus aculeatus (Bloch, 1786), holds substantial economic importance as a food fish in South Asia, due to its exceptional nutritional value. This study was conducted to investigate the reproductive ecology of M. aculeatus within the Gajner beel wetland ecosystem in northwestern Bangladesh, with a specific focus on size at sexual maturity, spawning season, and fecundity in relation to eco-climatic variables.
View Article and Find Full Text PDFUnveiling astaxanthin: biotechnological advances, delivery systems and versatile applications in nutraceuticals and cosmetics.
Arch Microbiol
January 2025
School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632014, India.
Astaxanthin (ASX), "king of carotenoids", is a xanthophyll carotenoid that is characterized by a distinct reddish-orange hue, procured from diverse sources including plants, microalgae, fungi, yeast, and lichens. It exhibits potent antioxidant and anti-ageing properties and has been demonstrated to mitigate ultraviolet-induced cellular and DNA damage, enhance immune system function, and improve cardiovascular diseases. Despite its broad utilization across nutraceutical, cosmetic, aquaculture, and pharmaceutical sectors, the large-scale production and application of ASX are constrained by the limited availability of natural sources, low production yields and stringent production requirements.
View Article and Find Full Text PDFAn emerging frontier of battery innovation: tackling lattice rotation in single-crystalline cathodes.
Dalton Trans
January 2025
National Engineering Research Center for Domestic & Building Ceramics, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
Due to a lack of spatially resolved characterization studies on statistical and individual particle microstructure at multiple scales, a knowledge gap exists in understanding the mechanistic link between rapid performance failure and atomic-scale structure degradation in single-crystalline Ni-rich battery cathodes. In a recent publication in , Huang developed a multi-crystal rocking curve technique (combining X-ray and electron microscopy to capture both statistical and individual lattice distortions), which enables multiscale observations and further proves that the accumulation of the unrecoverable lattice rotation in cathodes upon repeated cycling exacerbates mechanical failure and electrochemical decay. The elucidation of failure mechanisms in single-crystalline cathodes offers valuable insights into the development of long-lasting and high-energy-density cathodes in next-generation batteries, encompassing strategies to mitigate lattice rotation and enhance lattice structure tolerance against lattice distortion within individual particles.
View Article and Find Full Text PDFExpansion counteraction effect assisted vanadate with rich oxygen vacancies as a high cycling stability cathode for aqueous zinc-ion batteries.
Phys Chem Chem Phys
January 2025
State Key Laboratory of Materials-Oriented Chemical Engineering and School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.
In this study, a novel tunnel structure vanadate NaVO (NaVO) cathode for aqueous zinc ion batteries (AZIBs) is facilely fabricated by thermal decomposition of polyoxovanadate containing NH ions. The NaVO cathode is characterized by abundant oxygen vacancies and nanometer dimensions. These attributes can offer extra reaction sites and suppress structural collapse during circulation.
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