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4142330 
Journal Article 
Iron loaded EMT nanosized zeolite with high affinity towards CO2 and NO 
Georgieva, V; Anfray, C; Retoux, R; Valtchev, V; Valable, S; Mintova, S 
2016 
1 
Microporous and Mesoporous Materials
ISSN: 1387-1811 
232 
256-263 
WOS:000380597000029 
The preparation of iron-loaded nanosized zeolite with EMT-type structure (Fe-EMT) is reported. The sorption capacity of the Fe-EMT zeolite crystals for NO and CO2 is evaluated. The application of Fe-EMT zeolite as a gas delivery system with high capacity for CO2 and NO in biomedicine is considered. Therefore the toxicity of the pure EMT and Fe-EMT zeolite nanocrystals is studied. Primary culture of astrocytes was exposed to zeolite nanocrystals. In addition, two human cell lines, U87-MG glioblastoma and HEK-293T were used. Cells were exposed to zeolites nanocrystals with concentrations of 50,100 and 400 mu g/ml for 24 h and 48 h. Cytotoxicity was assessed by a cell viability assay and no alteration of cell viability exposed to zeolite nanoparticles was observed. (C) 2016 Elsevier Inc. All rights reserved. 
Nanosized zeolite; Cytotoxicity; Gas carrier