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A review of optical imaging and therapy using nanosized graphene and graphene oxide


, : A review of optical imaging and therapy using nanosized graphene and graphene oxide. Biomaterials 34(37): 9519-9534

Nanosized graphene and graphene oxide (GO) are photoluminescent due to the presence of bandgaps and edges/defects. The excellent photostability of these nanomaterials makes them superior to molecular dyes for biological imaging. They can also produce intensive heat under laser irradiation, enabling them to serve as photothermal agents for cancer treatment. In this work, recent studies on the photoluminescence of these materials, their applications for biological imaging and photothermal cancer therapy are reviewed. Properties of laser, particularly the temporal property (continuous wave or pulsed), affect its interaction with materials. Therefore, the photoluminescence and photothermal effects, as well as their applications under both single (one)-photon (continuous wave laser) and two-photon (pulsed laser) excitation were summarized and analyzed. Synergistic therapy which combines chemotherapy and photothermal therapy using these materials is also reviewed. Finally, critical issues and challenges for further research and in medical applications of these materials are analyzed.

US$19.90

PMID: 24034502

DOI: 10.1016/j.biomaterials.2013.08.066


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