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Updated: May 19, 2026

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Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Graphene oxide-photosensitizer conjugate as a redox-responsive theranostic agent
1Molecular Imaging & Therapy Branch, National Cancer Center, 323 Ilsan-ro, Goyang-si, Gyeonggi-do 410-769, Korea.
Abstract:
A nano-sized graphene oxide-photosensitizer conjugate with a redox-responsive cleavable disulfide linker is non-fluorescent and non-phototoxic, even upon light irradiation. It becomes highly fluorescent and phototoxic inside cancer cells, where glutathione is used as an initiator for activating the photosensitizer.

