Shouwu GuoShanghai Jiao Tong University, China
Shouwu Guo is a professor in Shanghai Jiao Tong University. He received his doctorate degree from Weizmann Institute of Science, Israel, in 1999. After working as postdoctoral and research scientist in University of Minnesota and Northwestern University, USA, he moved back to China at the end of 2005.
His research interests are focused on synthesis and assemble of graphene and low dimensional nanomaterials, nanofabrication and nanomanipulation based on scanning probe microscopy, and application of graphene and nanomaterials in energy storage devices, biocatalysts and sensors.
Title：Graphene Quantum Dots: Preparation and Biological Catalytic Activity
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Abstract
Graphene quantum dots (GQDs), the graphene sheets with lateral dimensions less than 100 nm, maintain the intrinsic layered structural motif of graphene, but with smaller lateral size and abundant periphery carboxylic groups. Thus, the GQDs assume unique properties differing from the graphene sheets with micrometer lateral sizes, and hold more applications.
In the work, we will describe the preparation of GQDS in mass scale through a photo-Fenton reactionof graphene oxideand the applications of GQDs. Specifically, a novel DNA cleavage system (Figure 1) constructed using as-prepared GQDs will be reported. Additionally, due to the high peroxidase-like activity and small lateral size of GQDs, the covalently assembled GQDs/Au electrodes (Figure 2) and their catalytic performance and stability in H2O2 detection will be discussed.
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