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Multi-signal fluorescent probe for simultaneous differentiation and imaging of Hg, Cys, Hcy, and GSH in living cells and zebrafish.
J Hazard Mater
January 2025
Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), Institute of Interdisciplinary Studies, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China. Electronic address:
The Mercury (II) ion (Hg²⁺) is a toxic heavy metal that threatens biological systems by inducing oxidative stress and disrupting the redox balance. Biothiols such as cysteine (Cys), homocysteine (Hcy), and glutathione (GSH) are critical in maintaining redox homeostasis and are implicated in numerous physiological and pathological processes. Understanding the complex interactions between Hg²⁺ and biothiols requires molecular tools capable of simultaneous detection.
View Article and Find Full Text PDFDiscriminative ion detection of Hg and Cu and selective recognition of PO ions: Real time monitoring in food and water samples and molecular keypad lock integration.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, Mangalore, Karnataka 575 025, India.
A series of sensors, designated S3R1-S3R4, were designed and synthesized for the detection of PO ions and toxic metals, specifically Hg and Cu ions. The colorimetric detection of PO ions using these sensors exhibited a distinct visual color transition from yellow to purple in organo-aqueous media. The intrinsic cavity-like structure in the thiosemicarbazide-based derivative S3R4 significantly enhances the binding affinity for Hg and Cu ions in organic media.
View Article and Find Full Text PDFThe Impact of Mercury from Dental Amalgams on Pregnancy and Childhood: A Health and Risk Assessment Evaluation.
Curr Med Chem
January 2025
Council for Nutritional and Environmental Medicine (CONEM), Mo i Rana, Norway.
Mercury is a pervasive global pollutant, with primary anthropogenic sources including mining, industrial processes, and mercury-containing products such as dental amalgams. These sources release mercury into the environment, where it accumulates in ecosystems and enters the food chain, notably through bioamplification in marine life, posing a risk to human health. Dental amalgams, widely used for over a century, serve as a significant endogenous source of inorganic mercury.
View Article and Find Full Text PDFCarnivorous fishes can possess higher mercury levels than omnivorous fishes: A selective detection and efficient removal strategy for mercury using magnetic melamine-platinum composites fabricated by supermolecular self-assembly.
J Hazard Mater
January 2025
Huzhou Key Laboratory of Medical and Environmental Application Technologies, School of Life Sciences, Huzhou University, Zhejiang 313000, PR China; Zhejiang-French Digital Monitoring Laboratory for Aquatic Resources and Environment, Huzhou University, Huzhou 313000, PR China. Electronic address:
Mercury (II) ion (Hg) as highly toxic heavy metal may be accumulated in aquatic ecosystems and animals species so as to enter human body to conduct health harm. To ensure the safety of fishes food, hence, it is of great interest to evaluate the Hg levels in different kinds of fishes as well as Hg removal in aquaculture tailwater. In this article, a selective colormetric detection and efficient removal strategy has been developed for Hg ions by the controlled supermolecular self-assembly of melamine (MA)-platinum (Pt) composites onto mesoporous FeO carriers.
View Article and Find Full Text PDFNear-Native Imaging of Metal Ion-Initiated Cell State Transition.
ACS Nano
January 2025
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China.
Metal ions are indispensable to life, as they can serve as essential enzyme cofactors to drive fundamental biochemical reactions, yet paradoxically, excess is highly toxic. Higher-order cells have evolved functionally distinct organelles that separate and coordinate sophisticated biochemical processes to maintain cellular homeostasis upon metal ion stimuli. Here, we uncover the remodeling of subcellular architecture and organellar interactome in yeast initiated by several metal ion stimulations, relying on near-native three-dimensional imaging, cryo-soft X-ray tomography.
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