Confocal Raman spectroscopy to monitor intracellular penetration of TiO2 nanoparticles

Confocal Raman microscopy, a noninvasive, label-free, and high-spatial resolution imaging technique, in combination with K-mean cluster analysis and a correlation coefficient map, was employed to trace titanium dioxide (TiO2) nanoparticles in living MCF-7 and TERT cells. The penetration of TiO2 nano...

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Elmentve itt :
Bibliográfiai részletek
Szerzők: Salehi Hamideh
Calas-Bennasar Isabelle
Durand Jean-Cédric
Middendorp Elodie
Valcarcel Jean
Larroque Christian
Nagy Katalin
Laczkóné Turzó Kinga Mónika
Dékány Imre
Cuisinier Frédéric J. G.
Dokumentumtípus: Cikk
Megjelent: 2014
Sorozat:JOURNAL OF RAMAN SPECTROSCOPY 45 No. 9
doi:10.1002/jrs.4561

mtmt:2790679
Online Access:http://publicatio.bibl.u-szeged.hu/12295
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520 3 |a Confocal Raman microscopy, a noninvasive, label-free, and high-spatial resolution imaging technique, in combination with K-mean cluster analysis and a correlation coefficient map, was employed to trace titanium dioxide (TiO2) nanoparticles in living MCF-7 and TERT cells. The penetration of TiO2 nanoparticles into cells revealed a gradual time-dependent diffusion of nanoparticles over the entire cell. Cell apoptosis was monitored by tracing cytochrome c diffusion into the cytoplasm. A comparison with the mitochondrial clustering indicated that cytochrome c was inside the mitochondria for TiO2 concentration of 2 mu gml(-1). This result demonstrates that the presence of TiO2 particles within a cell does not induce apoptosis. We demonstrated that confocal Raman microscopy allow to follow penetration of TiO2 particles in cell and to monitor the apoptotic status of the penetrated cells. Copyright (c) 2014 John Wiley & Sons, Ltd. 
700 0 2 |a Calas-Bennasar Isabelle  |e aut 
700 0 2 |a Durand Jean-Cédric  |e aut 
700 0 2 |a Middendorp Elodie  |e aut 
700 0 2 |a Valcarcel Jean  |e aut 
700 0 2 |a Larroque Christian  |e aut 
700 0 2 |a Nagy Katalin  |e aut 
700 0 2 |a Laczkóné Turzó Kinga Mónika  |e aut 
700 0 2 |a Dékány Imre  |e aut 
700 0 2 |a Cuisinier Frédéric J. G.  |e aut 
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856 4 0 |u http://publicatio.bibl.u-szeged.hu/12295/7/2790679%20turzo%20k.pdf  |z Dokumentum-elérés