Journal
CARBON
Volume 50, Issue 15, Pages 5594-5604Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.08.013
Keywords
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Funding
- National Natural Science Foundation of China [20973093]
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS
- Natural Science Foundation of Jiangsu Higher Education Institutions of China [10KJB150008, 10KJB150011]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Scientific Research Foundation of Nanjing Normal University [2011103XG0249]
- Nanjing Normal University
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A novel hybrid of graphene oxide (GO) and hypocrellin B (HB) was prepared using a simple noncovalent method. An efficient loading of HB on GO as high as 2 mg/mg was obtained. Mechanism analysis indicated that the pi-pi stacking interaction is the dominant driving force in the noncovalent interaction between HB and GO. Irradiation of HB and GO hybrid (HB-GO) results in efficient generation of singlet oxygen (O-1(2)). In vitro studies have demonstrated the active uptake of HB-GO into the cytosol of tumor cells. Significant damage to such impregnated tumor cells was observed upon irradiation. (C) 2012 Elsevier Ltd. All rights reserved.
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