报告介绍

报告介绍 报告摘要： 　　I will report some of our recent studies on polymers that are responsive to a variety of stimuli such as light, ultrasound and carbon dioxide. In order to make polymers responsive to stimuli in a controllable and predictable manner, or in a way to accomplish a function, we have developed new methods. The studies which I will discuss include 1) near infrared light-sensitive polymer mic...

报告介绍 报告简介高价碘化试剂是一种稳定、绿色的新型亲电试剂，目前主要作为氧化剂和卤代试剂已逐渐应用于现代有机合成中。我们利用高价碘试剂诱导地环化反应，由此发展了多组分反应、高选择性、一锅法合成杂环化合物的策略，开拓了高价碘试剂参与地复杂环状化合物的合成领域。另外，利用高价碘试剂促进惰性化学键如C-H 键、C-C 键、N-O 键和N-N 键等的活化，实现这些惰性化学键的新型官能化方法。

报告介绍

报告介绍 报告摘要：　　We show that one-dimensional quasiperiodic optical lattice systems can exhibit edge states and topological phases which are generally believed to appear in two-dimensional systems. When the Fermi energy lies in gaps, the Fermi system on the optical superlattice is a topological insulator characterized by a nonzero topological invariant. The topological nature can be revealed by observi...

报告介绍 报告摘要：　　The fate of an injected hole in a Mott antiferromagnet is an outstanding issue of strongly correlated physics. It provides important insights into doped Mott insulators closely related to high-temperature superconductivity in cuprates. Here, we report a systematic numerical study based on the density matrix renormalization group (DMRG). It reveals a remarkable novelty and surprise for ...

报告介绍 Abstract: 　　Bacteria affect hosts in groups. Depending on environment, such as nutrient and/or humidity, they swim, swarm, or form biofilms. Biofilm is responsible for over 80% of the microbial infection in human body. However, little is known about the process during the formation. Swarming is usually considered as the first stage of starting a biofilm. Swarming bacteria are grown in a rich mediu...

报告介绍

报告介绍 报告摘要： 　　Photoinduced transformations of small polyenes find application in molecular electronics, nano-scale optical switches, molecular motors, catalysis, and photobiology. These transformations involve both electrocyclic ring-opening reactions, ring-closure reactions, and cis-trans isomerization reactions. The 1,3-cyclohexadiene chromophore is a prototypical photochemically active unit foun...

报告介绍 Abstract： Since its first discovery in 1979, heavy fermion superconductivity remains one of the big mysteries in condensed matter physics. The conventional theory fails to provide a satisfactory explanation to most heavy fermion properties. It is hence necessary to explore other routes to tackle this challenging problem. In this talk, after a brief introduction to the current status of heavy fermio...

报告介绍 报告摘要： 　　At the beginning of talk, I shall briefly summarize the unconventional superconducting matrials and their common features, including heavy formion, cuprates, organics, iron pnictides and selenides. Then I shall talk about the newly discovered carbonhydron superconductors : alkali-, alkali earth and rare earth metals doped phenanthrene, and give you experimental evidences on ...

报告介绍 Abstract:  　　Using combined theoretical and experimental approaches, we demonstrate that the bond orientation of water at the water-vapor interface depends markedly on the water isotope (H-D) composition. While the interfacial water structures of H2O and D2O are indistinguishable, the intramolecular symmetry breaking in HDO is directly reflected at the surface: the OD bonds preferably orient ...

报告介绍

报告介绍 报告摘要：　　Silicene, a single sheet of silicon atoms arranged in a honeycomb lattice, was supposed to have similar physical properties as that of graphene. In this presentation, I will show the first successful growth of monolayer silicene on metal surface through molecular beam epitaxy. The scanning tunneling microscopy investigation reveal Silicene on Ag(111) surface exhibits Ö3´&Oum...

报告介绍 报告摘要： Optofluidics has recently emerged as a new paradigm to integrate optical functions into microfluidic systems. This talk will focus on the recent attempt to exploit the optofluidics for photocatalytic water purification. I will show how the optofluidics helps overcome several fundamental problems of current photocatalytic technology such as mass transfer limit, photon transfer limit, elect...

报告介绍 报告摘要：Protein, the engine of life, carries out most functions in living things on the earth through characteristic modulation of its three-dimensional structure over time. Understanding the microscopic nature of the protein internal motion and its connection to the function and structure of the biomolecule is a central topic in biophysics, and of great practical importance for drug design, study...