Shanghai Pujiang Talent
Associate Editor of Journal of Luminescence
Title: Enhancement of lanthanide luminescence by surface-interface regulation
Speaker: Dr. A/Prof. Su Qianqian, Shanghai University
Time: December 27 (Wed), 2023. 19:00-20:00
Tencent Meeting: 480-364-064
Abstract:
Nanomaterial surfaces and interfaces play vital roles in regulation of many material properties. Upconversion materials that convert low energy excitation wavelength to high energy emission have attracted considerable attention due to the advantages of high penetration depth and high resistance to autofluorescence interference capability. However, upconversion remains a daunting challenge due to low quantum efficiency. We present rational designs and synthesis of upconversion luminescent materials with careful control of the surface and the interface of these nanoparticles, resulting in unprecedented optical properties. We also demonstrate the molecular upconversion luminescent probe, which shows excellent photostability, high quantum yield and rapid excretion capability. The NIR-to-NIR upconversion technique also offers a promising detection method, which shows very high sensitivity and selectivity for the detection of Cu2+ ions in vitro and in vivo. In addition, the toxicity and biological effects of the upconversion nanoparticles will be included.
Introduction of speaker
Dr. A/Prof. Su Qianqian is currently Associate professor of Shanghai University. She received her BE degree from Shandong University. She received her MS degree from Guangzhou Institute of Chemistry, Chinese Academy of Sciences and completed her PhD degree under the supervision of Professor Xiaogang Liu at National University of Singapore. She worked as a research fellow at Fudan University with Professor Fuyou Li. She then worked as a visiting scholar and senior visiting scholar at National University of Singapore, University of Technology Sydney and Genome Institute of Singapore. She joined Institute of Nanochemistry and Nanobiology at Shanghai University in 2017 and worked as a Principal Investigator in 2021. Her research interests focus on the development of novel luminescent nanomaterials for biomedical applications. Dr. Su has authored 10 patents and 50 peer-reviewed scientific journals (total citation > 5000, Google Scholar), including J. Am. Chem. Soc., Adv. Mater., Nat. Commun, Acc. Chem. Res, etc., 6 of which were selected as Highly Cited Papers in ESI.
