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N-functionalized calcium alginate encapsulated with microalgae for efficient Pb removal: Mechanisms and performance in batch and column operations.
J Hazard Mater
December 2024
Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
In this study, a novel adsorbent called Ca@SP was developed by immobilizing microalgae protein (Spirulina platensis, SP) in an alginate matrix for enhanced Pb²⁺ removal from aqueous solutions. Synthesized via in situ crosslinking, Ca@SP leverages the synergistic effects of alginate's gel-forming ability and SP's N-rich biomass. Characterization of Ca@SP revealed a green spherical hydrogel with a BET specific surface area of 159.
View Article and Find Full Text PDFDesigning mimosine-containing peptides as efficient metal chelators: Insights from molecular dynamics and quantum calculations.
J Inorg Biochem
December 2024
Faculty of Chemistry (UPV/EHU), Manuel Lardizabal 3, Donostia-San Sebastian 20018, Spain; DIPC, Manuel Lardizabal 4, Donostia-San Sebastian 20018, Spain. Electronic address:
Mimosine, a non-essential amino acid derived from plants, has a strong affinity for binding divalent and trivalent metal cations, including Zn, Ni, Fe, and Al. This ability endows mimosine with significant antimicrobial and anti-cancer properties, making it a promising candidate for therapeutic applications. Previous research has demonstrated the effectiveness of mimosine-containing peptides as metal chelators, offering a safer alternative to conventional chelation agents.
View Article and Find Full Text PDFApplication of Strontium Chloride Hexahydrate to Synthesize Strontium-Substituted Carbonate Apatite as a pH-Sensitive, Biologically Safe, and Highly Efficient siRNA Nanocarrier.
ACS Appl Bio Mater
December 2024
Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
Naked siRNAs are sensitive to enzymatic degradation, phagocytic entrapment, quick renal excretion, membrane impermeability, endosomal escape, and off-target effects. Designing a safe and efficient nanocarrier for siRNA delivery to the target site without toxicity remains a significant hurdle in gene therapy. CA is a unique derivative of hydroxyapatite and a highly pH-sensitive nanocarrier with strong particle aggregation and a high polydispersity index.
View Article and Find Full Text PDF[Absorption mechanism of iron oxide nanoparticles in Caco-2 cell model].
Wei Sheng Yan Jiu
November 2024
West China School of Public Health, Sichuan University, Chengdu 610041, China.
Objective: To explore the possible mechanism of absorption of iron oxide nanoparticles into the human body through the gastrointestinal tract.
Methods: This article used Caco-2 monolayer cells as a cell model, prepared characterized iron oxide nanoparticles(Fe_2O_3 NPs) as suspensions, and intervened in Caco-2 cells. CCK-8 method, transwell method, and atomic spectrophotometer method were used to explore the effect of Fe_2O_3 NPs on the activity of Caco-2 cells and the absorption and transport of them through the Caco-2 monolayer cell model.
EuPtPb and SrPtPb-lead-based intermetallics with YRhSn/NdRhSn-type polyanionic platinum-lead 3D frameworks.
Dalton Trans
December 2024
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russia.
Two platinide plumbides, EuPtPb and SrPtPb, were discovered using high-temperature exploratory synthesis and flux-assisted crystal growth. Their crystal structures were determined from single-crystal X-ray diffraction. Both compounds crystallize in the orthorhombic system; EuPtPb belongs to the YRhSn structure type (2, = 4.
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