Efficient photothermal therapy of brain cancer through porphyrin functionalized graphene oxide

Siheng Su, Jilong Wang, Junhua Wei, Raul Martínez-Zaguilán, Jingjing Qiu, Shiren Wang

Research output: Contribution to journalArticlepeer-review

77 Scopus citations


Current clinical treatments including surgical resection, radiation therapy and chemotherapy for brain cancer result in high mortality due to the complex structure of the brain aggressiveness of brain cancer. Recently, non-invasive photothermal therapy (PTT) using near infrared laser irradiation has been developed as an alternative emerging therapy for brain cancer. In this paper, a biocompatible porphyrin functionalized graphene oxide (PGO) with high absorbance at 808 nm is synthesized as a photothermal platform for brain cancer therapy. Graphite oxide is exfoliated and conjugated with porphyrin through π-π interactions. This PGO is two times more stable than reduced graphene oxide (rGO) in aqueous solution. Most importantly, the efficiency of the photo-thermal conversion of PGO is increased by 89% and 33% compared to graphene oxide and rGO under 808 nm laser irradiation, causing ablation of a large number of brain cancer cells in vitro. This PGO platform containing active functional groups allows specific targeting in PTT without harming healthy cells and tissues.

Original languageEnglish
Pages (from-to)5743-5749
Number of pages7
JournalNew Journal of Chemistry
Issue number7
StatePublished - Jul 1 2015


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