Photoluminescence and photothermal effect of Fe3O4nanoparticles for medical imaging and therapy
Document Type
Article
Publication Title
Applied Physics Letters
Abstract
Photoluminescence (PL) of Fe3O4nanoparticle was observed from the visible to near-infrared (NIR) range by laser irradiation at 407nm. PL spectra of ∼10nm diameter Fe3O4nanoparticles organized in different spatial configuration, showed characteristic emissions with a major peak near 560nm, and two weak peaks near 690nm and 840nm. Different band gap energies were determined for these Fe3O4nanoparticle samples corresponding to, respectively, the electron band structures of the octahedral site (2.2eV) and the tetrahedral site (0.9eV). Photothermal effect of Fe3O4nanoparticles was found to be associated with the photoluminescence emissions in the NIR range. Also discussed is the mechanism responsible for the photothermal effect of Fe3O4nanoparticles in medical therapy.
DOI
10.1063/1.4895133
Publication Date
9-1-2014
Recommended Citation
Sadat, M. E.; Kaveh Baghbador, Masoud; Dunn, Andrew W.; Wagner, H. P.; Ewing, Rodney C.; Zhang, Jiaming; Xu, Hong; Pauletti, Giovanni M.; Mast, David B.; and Shi, Donglu, "Photoluminescence and photothermal effect of Fe3O4nanoparticles for medical imaging and therapy" (2014). Pharmaceutical and Administrative Sciences Faculty Publications. 155.
https://doi.org/10.1063/1.4895133
https://collections.uhsp.edu/pharm-admin-sciences_pubs/155