کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7764 563 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of iron redox state in the genotoxicity of ultrafine superparamagnetic iron oxide nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
The role of iron redox state in the genotoxicity of ultrafine superparamagnetic iron oxide nanoparticles
چکیده انگلیسی

Ultrafine superparamagnetic iron oxide nanoparticles (USPION) hold great potential for revolutionising biomedical applications such as MRI, localised hyperthermia, and targeted drug delivery. Though evidence is increasing regarding the influence of nanoparticle physico-chemical features on toxicity, data however, is lacking that assesses a range of such characteristics in parallel. We show that iron redox state, a subtle though important physico-chemical feature of USPION, dramatically modifies the cellular uptake of these nanoparticles and influences their induction of DNA damage. Surface chemistry was also found to have an impact and evidence to support a potential mechanism of oxidative DNA damage behind the observed responses has been demonstrated. As human exposure to ferrofluids is predicted to increase through nanomedicine based therapeutics, these findings are important in guiding the fabrication of USPION to ensure they have characteristics that support biocompatibility.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomaterials - Volume 33, Issue 1, January 2012, Pages 163–170
نویسندگان
, , , , , , , , ,