Study of afterglow and thermoluminescence properties of synthetic opal-C nanoparticles for in vivo dosimetry applications

Marlen Hernández-Ortiz, Laura S. Acosta-Torres, Rodolfo Bernal, Catalina Cruz-Vázquez, Victor M. Castãno

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Opal particles, with diameter ca. 80 nm, were synthesized by the Stöber method. Samples were exposed to 100 Gy of beta particle irradiation and its thermoluminescence (TL) emission was recorded. TL response presents good reproducibility, standard deviation 1%. The glow curve displays two TL peaks 86 and 400°C and the afterglow (AG) phenomenon is observed immediately after irradiation (< 150°C). The synthetic opal-C exhibits a linear dependence of AG response as function of dose from 0.25 to 8 Gy. This dose range is of interest for personal and clinical dosimetry. Moreover, a previous study indicates that cytotoxic and genotoxic effects caused by opal nanoparticles, did not induce unrepairable DNA damage neither a cellular harm. Therefore, our results show synthetic opal-C is a material useful for in vivo radiation dosimetry.

Original languageEnglish
Title of host publicationMaterials Concepts for Biomedical Sensing
PublisherMaterials Research Society
Pages35-40
Number of pages6
ISBN (Print)9781632661203
DOIs
StatePublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: 25 Nov 201230 Nov 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1530
ISSN (Print)0272-9172

Conference

Conference2012 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period25/11/1230/11/12

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