A Near Infrared Light Triggered Hydrogenated Black TiO2 for Cancer Photothermal Therapy
- 26 May 2015
- journal article
- research article
- Published by Wiley in Advanced Healthcare Materials
- Vol. 4 (10), 1526-1536
- https://doi.org/10.1002/adhm.201500273
Abstract
White TiO2 nanoparticles (NPs) have been widely used for cancer photodynamic therapy based on their ultraviolet light–triggered properties. To date, biomedical applications using white TiO2 NPs have been limited, since ultraviolet light is a well-known mutagen and shallow penetration. This work is the first report about hydrogenated black TiO2 (H-TiO2) NPs with near infrared absorption explored as photothermal agent for cancer photothermal therapy to circumvent the obstacle of ultraviolet light excitation. Here, it is shown that photothermal effect of H-TiO2 NPs can be attributed to their dramatically enhanced nonradiative recombination. After polyethylene glycol (PEG) coating, H-TiO2-PEG NPs exhibit high photothermal conversion efficiency of 40.8%, and stable size distribution in serum solution. The toxicity and cancer therapy effect of H-TiO2-PEG NPs are relative systemically evaluated in vitro and in vivo. The findings herein demonstrate that infrared-irradiated H-TiO2-PEG NPs exhibit low toxicity, high efficiency as a photothermal agent for cancer therapy, and are promising for further biomedical applications.Keywords
This publication has 52 references indexed in Scilit:
- The enhanced chemotherapeutic effects of doxorubicin loaded PEG coated TiO2 nanocarriers in an orthotopic breast tumor bearing mouse modelJournal of Materials Chemistry B, 2014
- Enhanced doxorubicin transport to multidrug resistant breast cancer cells via TiO2 nanocarriersRSC Advances, 2013
- Titanium dioxide nanoparticles: a review of current toxicological dataParticle and Fibre Toxicology, 2013
- Multifunctional Fe3O4–TiO2 nanocomposites for magnetic resonance imaging and potential photodynamic therapyNanoscale, 2013
- RGDC Functionalized Titanium Dioxide Nanoparticles Induce Less Damage to Plasmid DNA but Higher Cytotoxicity to HeLa CellsThe Journal of Physical Chemistry B, 2012
- Phosphonate–Titanium Dioxide Assemblies: Platform for Multimodal Diagnostic–Therapeutic NanoprobesJournal of Medicinal Chemistry, 2011
- TiO2 Nanotubes as a Therapeutic Agent for Cancer ThermotherapyPhotochemistry and Photobiology, 2010
- The incorporation of daunorubicin in cancer cells through the use of titanium dioxide whiskersBiomaterials, 2009
- Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and ApplicationsChemical Reviews, 2007
- The in vitro inhibition of multidrug resistance by combined nanoparticulate titanium dioxide and UV irraditionBiomaterials, 2006