Retracted Article: N, S co-doped graphene quantum dots from a single source precursor used for photodynamic cancer therapy under two-photon excitation

Rijun Gui; Xifeng Liu; Hui Jin; Zonghua Wang; Feifei Zhang; Jianfei Xia; Min Yang; Sai Bi; Yanzhi Xia

doi:10.1039/C4CC09280E

Retracted Article: N, S co-doped graphene quantum dots from a single source precursor used for photodynamic cancer therapy under two-photon excitation†

Rijun Gui,^a Xifeng Liu,^b Hui Jin,^a Zonghua Wang,*^a Feifei Zhang,^a Jianfei Xia,^a Min Yang,^a Sai Bi^a and Yanzhi Xia^a

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* Corresponding authors

^a Collaborative Innovation Center for Marine Biomass Fiber, Materials and Textiles of Shandong Province, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Laboratory of Fiber Materials and Modern Textiles, the Growing Base for State Key Laboratory, College of Chemical Science and Engineering, Qingdao University, Qingdao, Shandong 266071, P.R. China
E-mail: wangzonghua@qdu.edu.cn
Fax: +86 532 85950873
Tel: +86 532 85950873

^b Department of Orthopedic Surgery, Mayo Clinic, Rochester, USA

Abstract

Using polythiophene derivatives as single source precursors, nitrogen (N) and sulfur (S) co-doped graphene quantum dots (NS-GQD) were prepared. Under two-photon excitation (800 nm), the NS-GQD exhibited excellent photostability and high ¹O₂ generation, and therefore were developed as photodynamic therapy agents for cancer treatment.

Chemical Communications

Retracted Article: N, S co-doped graphene quantum dots from a single source precursor used for photodynamic cancer therapy under two-photon excitation†

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