TY - GEN
T1 - Study of afterglow and thermoluminescence properties of synthetic opal-C nanoparticles for in vivo dosimetry applications
AU - Hernández-Ortiz, Marlen
AU - Acosta-Torres, Laura S.
AU - Bernal, Rodolfo
AU - Cruz-Vázquez, Catalina
AU - Castãno, Victor M.
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84900333715&partnerID=8YFLogxK
U2 - 10.1557/opl.2013.205
DO - 10.1557/opl.2013.205
M3 - Contribución a la conferencia
AN - SCOPUS:84900333715
SN - 9781632661203
T3 - Materials Research Society Symposium Proceedings
SP - 35
EP - 40
BT - Materials Concepts for Biomedical Sensing
PB - Materials Research Society
T2 - 2012 MRS Fall Meeting
Y2 - 25 November 2012 through 30 November 2012
ER -