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


ABSTRACT: We 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.

SUBMITTER: Li J 

PROVIDER: S-EPMC5378876 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature

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

Li Junjie J   Zhang Weixia W   Chung Ting-Fung TF   Slipchenko Mikhail N MN   Chen Yong P YP   Cheng Ji-Xin JX   Yang Chen C  

Scientific reports 20150723


We 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 resul  ...[more]

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