Biotic formation of methylmercury: A bio–physico–chemical conundrum
Sign Up to like & getrecommendations! Published in 2020 at "Limnology and Oceanography"
DOI: 10.1002/lno.11366
Abstract: Abstract Mercury (Hg) is a natural and widespread trace metal, but is considered a priority pollutant, particularly its organic form methylmercury (MMHg), because of human's exposure to MMHg through fish consumption. Pioneering studies showed the… read more here.
Keywords: chemical conundrum; mmhg; bio physico; hgii ... See more keywords
Denitrification devices in urban boilers change mercury isotope fractionation signatures of coal combustion products.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental pollution"
DOI: 10.1016/j.envpol.2020.115753
Abstract: The installation rate of denitrification devices is accelerating in Chinese urban boilers. Previous studies on pulverized coal-fired boilers without denitrification devices showed that combustion products containing mainly oxidized mercury (Hg) preferably enriched lighter Hg isotopes… read more here.
Keywords: denitrification devices; isotope; combustion products; denitrification ... See more keywords
Selective colorimetric detection of HgII using silver nanoparticles modified with Apple and Nigella Sativa seed extracts and β-Cyclodextrin
Sign Up to like & getrecommendations! Published in 2020 at "Journal of environmental chemical engineering"
DOI: 10.1016/j.jece.2019.103566
Abstract: Abstract The surface modification of silver nanoparticles (AgNPs) with natural products could be environmentally friendly method of manufacturing provided that their inherent properties could be substantiated. Therefore, AgNPs were synthesized from AgNO3 using β-Cyclodextrin and… read more here.
Keywords: seed; detection; silver nanoparticles; nigella sativa ... See more keywords
Calibration Approach for Gaseous Oxidized Mercury Based on Nonthermal Plasma Oxidation of Elemental Mercury
Sign Up to like & getrecommendations! Published in 2022 at "Analytical Chemistry"
DOI: 10.1021/acs.analchem.2c00260
Abstract: Atmospheric mercury measurements carried out in the recent decades have been a subject of bias largely due to insufficient consideration of metrological traceability and associated measurement uncertainty, which are ultimately needed for the demonstration of… read more here.
Keywords: nonthermal plasma; calibration; plasma oxidation; hgii ... See more keywords
Mass-Independent Fractionation of Even and Odd Mercury Isotopes during Atmospheric Mercury Redox Reactions.
Sign Up to like & getrecommendations! Published in 2021 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c02568
Abstract: Mass-independent fractionation (MIF) of stable even mass number mercury (Hg) isotopes is observed in rainfall and gaseous elemental Hg0 globally and is used to quantify atmospheric Hg deposition pathways. The chemical reaction and underlying even-Hg… read more here.
Keywords: mercury isotopes; independent fractionation; hg0; mass independent ... See more keywords
Concerted dynamics of metallo-base pairs in an A/B-form helical transition
Sign Up to like & getrecommendations! Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-12440-x
Abstract: Metal-mediated base pairs expand the repertoire of nucleic acid structures and dynamics. Here we report solution structures and dynamics of duplex DNA containing two all-natural C-HgII-T metallo base pairs separated by six canonical base pairs.… read more here.
Keywords: form helical; base pairs; base; metallo base ... See more keywords
Flexibility and stabilization of HgII-mediated C:T and T:T base pairs in DNA duplex
Sign Up to like & getrecommendations! Published in 2017 at "Nucleic Acids Research"
DOI: 10.1093/nar/gkw1296
Abstract: Abstract Owing to their great potentials in genetic code extension and the development of nucleic acid-based functional nanodevices, DNA duplexes containing HgII-mediated base pairs have been extensively studied during the past 60 years. However, structural… read more here.
Keywords: dna; hgii mediated; base pairs; hgii ... See more keywords
A new mechanism for atmospheric mercury redox chemistry: implications for the global mercury budget
Sign Up to like & getrecommendations! Published in 2017 at "Atmospheric Chemistry and Physics"
DOI: 10.5194/acp-17-6353-2017
Abstract: Abstract. Mercury (Hg) is emitted to the atmosphere mainly as volatile elemental Hg0. Oxidation to water-soluble HgII plays a major role in Hg deposition to ecosystems. Here, we implement a new mechanism for atmospheric Hg0 ∕ HgII… read more here.
Keywords: oxidation; chemistry; deposition; hg0 ... See more keywords