报告题目:Graphene Quantum Dots for Bio-imaging and Optical Sensing

报 告 人:Prof. Peng Chen

报告时间:2016年11月16日(周三)下午14:30-16:00

报告地点:行政楼一楼报告厅

主讲人简介：

Peng CHEN, Professor

School of Chemical & Biomedical Engineering,

Blk N1.3-B3-08, 70 Nanyang Drive.

Nanyang Technological University, Singapore 637457

http://www3.ntu.edu.sg/home/chenpeng/index.html

 Professor Peng Chen obtained his bachelor’s and Master’s degrees from Zhejiang University in China. He completed his Ph.D. study in University of Missouri at Columbia in 2002. After a period of post-doctoral training at Harvard University, he joined Nanyang Technological University (Singapore) as an Assistant Professor in 2005. Currently, he is a full professor of Bioengineering in the School of Chemical & Biomedical Engineering. Professor Chen’s research focuses on nanomaterials (particularly, graphene materials) and their applications inbiosensing, bioimaging, and energy devices. His research has resulted in a number of patents and >150 publicationsin reputable journals, such as, AngewandteChemie International Edition,ACS Nano, Nano Letters, Advanced Materials, which have received >8500 citation counts according to Web of Science.

陈鹏教授于浙江大学获得学士和硕士学位，2002年于美国密苏里大学哥伦比亚分校获博士学位。在哈佛大学从事2年博士后研究后，于2005年进入新加坡南洋理工大学工作。目前是该校化学与生物工程学院的全职教授。陈鹏教授的研究主要集中在纳米材料(尤其是石墨烯材料)在生物传感、生物成像和能量器件中的应用。迄今为止，已发表150多篇SCI论文，研究工作被Angewandte Chemie International Edition,ACS Nano, Nano Letters, Advanced Materials等国际著名期刊报道。Web of Science统计数据显示，文章已有超过8500次的引用。

讲座面向全校开放，欢迎各学院教师、研究生踊跃参加

报告摘要：

Graphene Quantum Dots for Bio-imaging and Optical Sensing

Peng CHEN

Bioengineering Program, School of Chemical & Biomedical Engineering, Nanyang Technological University (Singapore)

Due to some intrinsic limitations suffered by the current fluorophores (e.g., fluorescent proteins, organic dyes, and semiconductor quantum dots), seeking complementary or better fluorescent reporters is a constantly ongoing effort critical for the areas of bio-imaging, optical sensing, photovoltaics etc. Graphene quantum dots (GQDs or 0D graphene) are atomically-thin and nanometer-wide planar structures of pristine or modified graphitic carbon. They are emerging as a new class of fluorophores with unique combination of several key merits including widely tunable photoluminescence (PL) properties, excellent photostability, molecular size,biocompatibility，and good solubility. GQDs promise a wide range of novel applications in biomedicine, energy storage and conversion, catalysis, etc. In this presentation, we demonstrate the methods to synthesize GQDs and the applications of these GQDs for real-time molecular imaging in live cells, ultrasensitive fluorescence detection of biomolecules, monitoring of dynamic cellular redox homeostasis, and electrochemical detection of heavy metal ions.