【今日物理】座第10期（2014-2015年度）

 Active 3D DNA Plasmonics

——2014-2015年度今日物理讲座第十期  

讲座时间：11月23日（Fri）18:30-20:00   讲座地点：三教301     讲座人：  刘娜（Independent Research Group Leader, Max-Planck-Institute for Intelligent Systems）

讲座摘要：　

We utilize structural DNA technology to achieve intelligent plasmonic nanomachines with engineerable optical response and active functionalities. Plasmonic metal particles are assembled at specific locations on an active 3D DNA origami template with nanometer scale accuracy. The plasmonic system constitutes a well-defined 3D configuration with unique optical response. Due to the intrinsic programmability and excellent functionalities of DNA, the plasmonic nanomachine can respond to external stimulus upon recognition of biochemical events or stimulated movements of the DNA template. Any conformational changes of the plasmonic nanomachine will lead to the near-field interaction changes of the metal particles in the 3D assembly and therefore give rise to immediate optical signal changes in the spectrum, providing an active optical response to external stimulus. Due to the native biocompatibility of DNA, this will enable a new generation of 3D plasmon rulers. 

讲座人简介： 

NA LIU,Independent Research Group Leader,Max-Planck-Institute for Intelligent Systems.

Professional Preparation

Jilin University,P.R. China,PhysicsB.S. 2001

Peking University, P.R. China, Physics Research Assistant, 2001-2003

Hongkong University of Science and Technology, P.R. China, Physics M.S. 2005

University of Stuttgart, Germany, Physics Ph.D. (“summa cum laude”) 2009

Appointments

2012-present Group Leader at the Max-Planck-Institute for Intelligent Systems

(Smart Nanoplasmonics)

2011-2012 Texas Instruments Visiting Professor at Rice University (Dept. of Electrical Engineering): Collaboration with Prof. Naomi Halas and Peter Nordlander

2010 Lawrence Berkeley Lab, University of California, Berkeley

Postdoc (Group of Prof. A. Paul Alivisatos)

       We research of Na Liu deals with nanoplasmonics. In the last several years, Na Liu has been an important figure in the field of complex plasmonics, coupling, and development of novel sensing methods. She has pioneered top-down methods for creating complex 2D and 3D plasmonic nanostructures and metamaterials (Nature Materials 2008, 326 citations) and was able to develop the theoretical tools to understand the complex coupling processes in these structures (Angewandte Chemie Int. Ed. 2010). In particular, she was the first to realize plasmon-induced transparency in the optical wavelength range (Nature Materials 2009, 429 citations) and applied it to noninvasive glucose sensing (Nano Lett. 2010, 209 citations). She was also the first to realize optical perfect absorbers for glucose sensing (Nano Lett. 2010, 270 citations). Furthermore, she was the first to realize antenna-enhanced gas sensing using a single palladium nanoparticle (Nature Materials 2011, 149 citations). Recently, she realized the first 3D plasmon ruler (Science 2011, 133 citations). A large number of experimental groups expanded their nanofabrication facilities and started to manufacture complex nanoplasmonic structures and 2D as well as 3D metamaterials following her work. In the last two years, Na Liu has been very active using DNA nanotechnology to achieve isotropic 3D plasmonic assemblies with tailored optical response. She was able to realize 3D optical chiral nanostructures using DNA origami, including plasmonic particle helices (JACS 2012, 43 citations) and tetramers (Nano Lett. 2013).

      Her research work was honored with several prizes. Besides the very prestigious Hertha-Sponer award of the Deutsche Physikalische Gesellschaft for the best female physicist of the year 2010, she was bestowed with the “Preis der Freunde der Universität Stuttgart” for the best PhD dissertation of the University of Stuttgart and was also honored with the BMBF Nanowissenschaftspreis 2011. In 2012, she was granted one of the prestigious and highly competitive Sofia Kovalevskaja Awards by the Alexander von Humboldt Foundation. In 2013, she was honored with the Elisabeth-Schiemann Kolleg fellowship of the Max Planck Society. In 2014, she was honored with the extremely prestigious Heinz Maier-Leibnitz Award from the Deutschen Forschungsgemeinschaft.