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Nature Research, Scientific Reports, 1(5), 2015

DOI: 10.1038/srep12394

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Highly sensitive transient absorption imaging of graphene and graphene oxide in living cells and circulating blood

Journal article published in 2015 by Junjie Li, Weixia Zhang, Ting-Fung Chung ORCID, Mikhail N. Slipchenko, Yong P. Chen, Ji-Xin Cheng, Chen Yang
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

AbstractWe report a transient absorption (TA) imaging method for fast visualization and quantitative layer analysis of graphene and GO. Forward and backward imaging of graphene on various substrates under ambient condition was imaged with a speed of 2 μs per pixel. The TA intensity linearly increased with the layer number of graphene. Real-time TA imaging of GO in vitro with capability of quantitative analysis of intracellular concentration and ex vivo in circulating blood were demonstrated. These results suggest that TA microscopy is a valid tool for the study of graphene based materials.