Effect of fullerol nanoparticles on the transport and release of copper ions in saturated porous media.

08:00 EDT 30th March 2019 | BioPortfolio

Summary of "Effect of fullerol nanoparticles on the transport and release of copper ions in saturated porous media."

While the application and discharge of carbon nanomaterials (CNMs) increased rapidly, the research on the environmental safety of CNMs is also increasing. The high dispersity and mobility of modified CNMs in environmental media may have impacts on the environmental behavior of heavy metals. This work mainly studied the effect of fullerol nanoparticles (C(OH)) on Cu transport, sorption, and release in water-saturated porous media. The results showed that due to the strong adsorption capacity of C(OH) for Cu, the transport of Cu could be facilitated. However, with the pre-existence of C(OH) in porous media, the transport of Cu was also slightly enhanced. In addition, when loaded into the pre-contaminated porous medium, the C(OH) also enhanced the release of retained Cu, which implies a high environmental risk of C(OH).


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This article was published in the following journal.

Name: Environmental science and pollution research international
ISSN: 1614-7499


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Medical and Biotech [MESH] Definitions

P-type ATPases which transport copper ions across membranes in prokaryotic and eukaryotic cells. They possess a conserved CYSTEINE-HISTIDINE-SERINE (CPx) amino acid motif within their transmembrane helices that functions in cation translocation and catalytic activation, and an N-terminal copper-binding CxxC motif that regulates enzyme activity. They play essential roles in intracellular copper homeostasis through regulating the uptake, efflux and storage of copper ions, and in cuproprotein biosynthesis.

The movement of ions across energy-transducing cell membranes. Transport can be active, passive or facilitated. Ions may travel by themselves (uniport), or as a group of two or more ions in the same (symport) or opposite (antiport) directions.

An enzyme that catalyzes the active transport system of sodium and potassium ions across the cell wall. Sodium and potassium ions are closely coupled with membrane ATPase which undergoes phosphorylation and dephosphorylation, thereby providing energy for transport of these ions against concentration gradients.

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