More Efficient Prussian Blue Nanoparticles for an Improved Caesium Decontamination from Aqueous Solutions and Biological Fluids

Molecules

Claudio Evangelisti¹  Matteo Guidotti²  Chiara Vittoni³  Chiara Bisio³  Giorgio Gatti³  Fabio Carniato³  AndreyM. Katsev⁴ 

[1] CNR-ICCOM Istituto di Chimica dei Composti Organo Metallici, via G. Moruzzi 1, 56124 Pisa, Italy;CNR-SCITEC Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, via C. Golgi 19, 20133 Milano, Italy;Dipartimento di Scienze e Innovazione Tecnologica and “Centro interdisciplinare Nano-SiSTeMI”, Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy;Medical Academy, V.I. Vernadsky Crimean Federal University, 295051 Simferopol, Ukraine;

关键词: biotoxicity;    internal decontamination;    nanoparticles;    Prussian blue;    ¹³⁷Cs removal;   

DOI  :  10.3390/molecules25153447

来源: DOAJ

【 摘 要 】

Any release of radioactive cesium-137, due to unintentional accidents in nuclear plants, represents a dangerous threat for human health and the environment. Prussian blue has been widely studied and used as an antidote for humans exposed to acute internal contamination by Cs-137, due to its ability to act as a selective adsorption agent and to its negligible toxicity. In the present work, the synthesis protocol has been revisited avoiding the use of organic solvents to obtain Prussian blue nanoparticles with morphological and textural properties, which positively influence its Cs⁺ binding capacity compared to a commercially available Prussian blue sample. The reduction of the particle size and the increase in the specific surface area and pore volume values compared to the commercial Prussian blue reference led to a more rapid uptake of caesium in simulated enteric fluid solution (+35% after 1 h of contact). Then, after 24 h of contact, both solids were able to remove >98% of the initial Cs⁺ content. The Prussian blue nanoparticles showed a weak inhibition of the bacterial luminescence in the aqueous phase and no chronic detrimental toxic effects.

【 授权许可】

Unknown