in this work application of seven synthetic polymers as adsorbents for the removal of hg(ii) from aqueous solution was studied. the equilibrium studies are systematically carried out in a batch process, covering various process parameters that include agitation time, adsorbent dosage, and ph of the aqueous solution. variations of hg(ii) concentration in solution have been studied through measur...

Monitoring water quality has become a goal to prevent issues related human health and environmental conditions. In this sense, the concentration of metal ions in sources is screened, as these are considered persistent contaminants. work, we describe implementation customized graphite electrodes decorated with two types Hg nanoparticles (Hg-NPs), optimized toward electrochemical detection Cd, Pb...

Mercury (Hg) is a ubiquitous and non-essential heavy metal that highly toxic to aquatic organisms. Few studies examine Hg its effects on wild fish populations. Here, we investigated the potential of exposure large long-lived marine species conservation concern, vulnerable Atlantic Goliath Grouper Epinephelus itajara. Our objectives were (1) measure (methyl-Hg; total = combined methyl-Hg inorgan...

Abstract The transformation of mercury (Hg) into the more toxic and bioaccumulative form methylmercury (MeHg) in soils sediments can lead to biomagnification MeHg through food chain, which poses ecological health risks. In last decade, biochar application, an situ remediation technique, has been shown be effective mitigating risks from Hg sediments. However, uncertainties associated with use it...

The superconducting phase of the ${\mathrm{HgBa}}_{2}{\mathrm{CuO}}_{4+\ensuremath{\delta}}$ (Hg-1201) and ${\mathrm{HgBa}}_{2}{\mathrm{Ca}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{8+\ensuremath{\delta}}$ (Hg-1223) cuprates has been investigated by Raman spectroscopy under hydrostatic pressure. Our analysis reveals that increase ${T}_{\mathrm{c}}\phantom{\rule{0.16em}{0ex}}$with pressure is slower in...

Phytoremediation is a promising technique for reducing mercury (Hg) pollution. Little known about the phytoremediation potential of ramie (Boehmeria nivea L. Gaud.) and response its rhizosphere soil microbiome to Hg contamination. In this study, we planted in three plots contaminated with different levels pollution evaluated accumulation translocation. We also analyzed abundance, composition, p...

Motivation: Modern biology has moved from a science of individual measurements to a science where data are collected on an industrial scale. Foremost amongst the new tools for biochemistry are chip arrays which, in one operation, measure hundreds of thousands or even millions of DNA sequences or RNA transcripts. Whilst this is impressive, increasingly sophisticated analysis tools have been requ...

The most common bacterial mechanism for resistance to mercuric-ion species involves intracellular reduction of Hg(II) to Hg(0). Key proteins of the pathway typically include: MerR, which regulates pathway expression; MerP, which protects the external environment; MerT or MerC, which transport Hg(II) species across the inner membrane; MerA, which catalyses reduction of Hg(II); and sometimes MerB...

The nuclear quadrupole interaction of 1 9 9 m Hg in Hg-cysteine and Hg-tert-butyl mercaptide was determined at room temperature by perturbed angular correlations. The dramatic difference in the interaction strength between both compounds is a result of the two-fold and four-fold sulfur coordination, respectively. Moreover, we compared the preparation of Hg-cysteine using a Hg: cysteine ratio of...