Rapid and multimodal in vivo bioimaging of cancer cells through in situ biosynthesis of Zn&;Fe nanoclusters |
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Authors: | Tianyu Du Chunqiu Zhao Fawad ur Rehman Lanmei Lai Xiaoqi Li Yi Sun Shouhua Luo Hui Jiang Matthias Selke Xuemei Wang |
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Affiliation: | 1. State Key Laboratory of Bioelectronics(Chien-Shiung Wu Lab), School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;2. Nanjing Foreign Language School, Nanjing 210096, China;3. Laboratory of the signal and image processing, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China;4. Department of Chemistry and Biochemistry, California State University, Los Angeles, CA 90032, USA |
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Abstract: | Early diagnosis remains highly important for efficient cancer treatment,and hence,there is significant interest in the development of effective imaging strategies.This work reports a new multimodal bioimaging method for accurate and rapid diagnosis of cancer cells by introducing aqueous Fe2+ and Zn2+ ions into cancer cells (i.e.,HeLa,U87,and HepG2 cancer cells).We found that the biocompatible metal ions Fe2+ and Zn2+ forced the cancer cells to spontaneously synthesize fluorescent ZnO nanoclusters and magnetic Fe3O4 nanoclusters.These clusters could then be used for multimodal cancer imaging by combining fluorescence imaging with magnetic resonance imaging and computed tomography imaging.Meanwhile,for normal cells (i.e.,L02) and tissues,neither fluorescence nor any other obvious difference could be detected between preand post-injection.This multimodal bioimaging strategy based on the in situ biosynthesized Zn&Fe oxide nanoclusters might therefore be useful for early cancer diagnosis and therapy. |
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Keywords: | multimodal imaging biosynthesized Zn&Fe oxide nanoclusters cancer diagnosis |
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