ICMDA 2019 | Keynote Speakers

Keynote Speaker I

 

 

Prof. Kazushi Kinbara

Tokyo Institute of Technology, Japan

 

Dr. Kazushi Kinbara was born in 1967. He received a B.S. degree in Organic Chemistry from the University of Tokyo in 1991, and obtained a Ph.D. in Organic Chemistry in 1996 under the direction of Professor Kazuhiko Saigo. He then began an academic career at the University of Tokyo, and had been involved until 2001 in the development of optical resolution upon crystallization.  In 2001, he moved to Professor Takuzo Aida’s group at School of Engineering, the University of Tokyo as a lecturer and associate professor.  In 2008, he was promoted to Professor of the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University.  In 2015, he moved to Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology.  His research interests include (1) development of biomimetic molecules, (2) supramolecular chemistry of macromolecules, and (3) protein engineering.

 

Speech Title: Development of PEG-based stimuli-responsive molecules

 

Abstract: Inclusion of stimuli-responsive units in a macrocyclic framework is one of efficient strategies for development of molecular machineries, where external stimuli have been utilized to trigger the mechanical motions. Polyethylene glycol (PEG) is known as a thermoresponsive polymer, which changes its conformation from the gauche-rich to the anti-rich form upon elevation of temperature. Recently, we have succeeded in developing synthetic procedures for preparation of monodisperse short PEGs in large quantity, and applied them for the synthesis of multiblock amphiphilic compounds, which show unique thermoresponsive behaviors. For examples, we succeeded to achieve crystal-to-crystal or liquid-crystal-to-crystal phase transitions of these molecules to switch the electrical or optical property of the materials by temperature changes. The other examples include thermal switching of hydrophilicity/hydrophobicity allowing for bio-related applications. Such unique features of short-PEG based amphiphilic molecules will be highlighted.

 

Keynote Speaker II

 

 

Prof. Takashige Omatsu
Chiba University, Japan


Takashige Omatsu (B.S. (1983), Ph.D. (1992) from the University of Tokyo) is a professor of nano-science division of a faculty of engineering in Chiba University.His research intersts cover a variety of areas, such as nonlinear optics, solid-state and fiber lasers, singular optics, and super-resolution spectroscopy. Recent work has focused on chiral control of nano-structures by angular momentum of light. Such chiral nano-structures will potentially provide a new scientific aspect to metamaterials, plasmonics, and silicon photonics, and they might also enable us to develop nanoscale imaging systems with chiral selectivity.
He has already published >100 refereed journal articles, and he has performed >20 invited presentations of major international conferences, including CLEO, CLEO Pacific-Rim, CLEO Europe, LEOS, and ICALEO meetings. He has been appointed as an Associate Editor of Optics Express during 2006-2012. He is also on the editorial board of Applied Physics Express. He is currently working as a steering committee member of the conference on the laser and optoelectronics pacific-rim (CLEO Pacific-rim). Professor Omatsu is a Fellow of the Japan Society of Applied Physics, and a Senior Member of the Optical Society of America. He is also Visiting Professor, Xinjiang Normal University, China.

 

Speech Title: Light-induced Twisted Structures

 

Abstract: Allen et.al. theoretically proposed that light can carry orbital angular momentum (OAM) of ℓℏ (where ℓ is an integer termed a topological charge) per photon, associated with its helical wavefront with an on-axis phase singularity [1–3]. To date, the OAM of light has been widely investigating many applications, such as optical trapping and manipulation [4], laser scanning microscopy with a spatial resolution beyond the diffraction limit [5], quantum ghost imaging systems [6], and fiber-based space division multiplexing optical telecommunications, free-space telecommunications [7].

We and our co-workers have discovered an entirely novel fundamental physical phenomenon, in which the OAM of light can twist the irradiated materials to shape helical nano/micron structures with the help of spin angular momentum (SAM), associated with a helical electric field of circularly polarized light very recently [8–12].

Going beyond conventional applications based on light with OAM, such ‘twisted’ structures created by the irradiation of light with OAM will offer an entirely new fundamental and applied physical insight of interaction between optical fields and matters on the nano/micro scale.

In this presentation, we review unique twisted structures, such as chiral needles, helical fibers etc., and novel fundamental phenomena, enabled by the interaction between optical fields with OAM and materials. Such light-matter interaction will potentially lead to entirely novel fundamental and applied materials sciences.

 

Keynote Speaker III

 

 

Prof. Hongqi Sun

 Edith Cowan University, Australia

 

Dr. Sun became a Full Professor of Chemical Engineering at ECU in November 2017. Before he joined ECU in 2016 as an Associate Professor through the campaign of Vice-Chancellor’s Professorial Research Fellowship, he had worked at Curtin University for over seven years, beginning with a Research Fellow position (2009) to Curtin Research Fellow (2013) and then to Senior Research Fellow (2015). He remains an Adjunct Professor of Curtin University. His research focuses on synthesis of nanostructured catalyst materials, such as shape-controlled metals or oxides, nanocarbons, arrays and quantum dots for solar energy utilization and environmental remediation. So far he has published over 160 refereed journal papers and received over 8200 citations and achieved an h-index of 55 (Data from Google Scholar in October 2018). He has also secured over three million dollars funding including three ARC discovery projects, four CRC projects and two fellowships. He serves as an Associate Editor of RSC Advances and Journal of Advanced Oxidation Technologies, assessor of ARC, committee member of international conferences, and referee of international journals.

 

Speech Title: Design of Metal-Free Materials for Energy and Environmental Applications

 

Abstract: Energy crisis and environmental pollution have become the most serious barriers to the further sustainable developments of human beings.    Worldwide researchers have devoted enormous efforts to tackling the challenges. Among the research endeavours, rational design and synthesis of nanomaterials have demonstrated promising advances. Recently, as the alternative to metal-based semiconductors, an emerging carbon-based photocatalyst, namely graphitic carbon nitride (g-C3N4), has been intensively used for photocatalytic reactions. In this talk, an overview of recent research progresses on modification of pristine carbon nitride for environmental and energy applications is first provided in-detail. Discussion on the morphology, copolymerization, doping, hybridization and sensitization will be then made. At last, perspectives in future research and application opportunities are proposed.

 

Keynote Speaker IV

 

 

Prof. Xiaozhong Zhang

School of Materials Science and Engineering, Tsinghua University, China

 

Prof. Xiaozhong Zhang, obtained his BSc in Physics from Fudan University (China) in 1982, MSc in Physics from Shanghai Jiaotong University (China) in 1984. He obtained his PhD. in Materials Science from Oxford University (UK) in 1989. He then worked as a postdoctoral research fellow at The Royal Institution of Great Britain for three years. During 1992-1999 he worked as a Faculty at Physics department, National University of Singapore. In 1999 he joined Tsinghua University as a professor at Department of Materials Science and Engineering. He was the director of Electron Microscopy Laboratory of Tsinghua University during 1999-2006. He is now serving as deputy director of the Key Laboratory of Advanced Materials (Education Ministry), deputy chief of Chinese national nano-technology standardization committee and co-editor of IUCrJ. His research interests are spintronic materials and devices, carbon materials, nanomaterials and nanostructure, electron microscopy, and computational materials science. He has published more than 190 referred papers and been awarded 23 patents. His silicon magnetoresistance work (Nature 2011) was selected in 2011 as “Top 10 scientific advances in China” and “Top 10 University level scientific and technological advances in China”.

 

Speech Title: Non-volatile spin logic device of in-memory computing

 

Abstract: Conventional computers based on CMOS logic suffer from the von Neumann performance bottleneck due to its hardware architecture that non-volatile magnetic memory and semiconductor based logic are separated. The necessary processes of information reading, processing and writing, information transformation and transfer between two units are required and would consume a huge amount of time and energy. In addition, because the information during processing is volatile and needs to be refreshed frequently, it also consumes a lot of energy and has the risk of information loss when suddenly powered down. Our purpose is to solve this problem by synthesizing the complementary features of magnetic materials and semiconductors. We invented Si based magnetic logic device which can perform reconfigurable four basic Boolean logic operations including AND, NAND, OR and NOR [1]. We also realized magnetic logic by coupling spin-dependent transport effect in magnetic material and nonlinear transport effect in semiconductor material. All four basic Boolean logic operations could be performed [2]. Furthermore, we proposed a magnetic logic-memory device by coupling anomalous Hall Effect and negative differential resistance phenomena [3]. All four basic Boolean logic operations could be programmed by magnetic bit at room temperature with high output ratio (> 1000 %) and low magnetic field (~5 mT). In the same clock cycle of reconfigurable logic operation, logic outputs could be directly written into magnetic bits by spin-orbit-torque switching effect, demonstrating non-volatile information reading, processing and writing realized in one step and one device. Hence, logic and non-volatile memory could be closely integrated in one chip. The time and energy used in the processes of information transformation and transfer could be saved. Our device might break through the Von Neumann performance bottleneck and make computer more energy efficiency and higher performance.

 

Invited Speaker

 

Prof. Zhigang Zhu

Shanghai Polytechnic University, China

 

Prof. Zhigang Zhu received his Ph.D in Materials Physics and Chemistry in 2005, from Shanghai Institute of Ceramics, Chinese Academy of Sciences. Then he moved to U.K. to work as Post-doc Research Fellow in University of Birmingham, Brunel University and University of Cambridge, respectively. In 2012, he returned to China and joined Shanghai Polytechnic University (SSPU). In 2013, he was promoted to Professor and Head of Department of Materials Engineering, School of Environmental and Materials Engineering. In 2016, he was appointed as the head of School of Environmental and Materials Engineering.
His research has covered a wide range of areas of materials science and engineering and microfabrication. His current research interests are fabrication, characterization and design of biosensors and gas sensors, specializing in various types of biosensors for continuous glucose monitoring. Recently, his group is developing polymerized crystalline colloidal array based sensors for various environmental stimuli such as solvent, pH and strain.
Prof. Zhu has published over 60 papers, and 10 provisional patents in application. He is member of IoP and ISE; he serves as Associate editor of Acta of SSPU, and editor member of Soft Nanoscience Letters. He received several awards including Royal Society International Research Fellowship (2005), Honorary Research Fellow in University of Birmingham (2006), Eastern Scholar Professorship at Shanghai Institutions of Higher Learning (2012), Shuguang Scholar of Shanghai (2014).

 

Speech Title: Micro/Nano- Approaches for Biosensors and Chemical Sensors

 

Abstract: Biosensor is a type of bio-molecular probe that measure the concentration of biological molecules by transducing biochemical interaction into a quantifiable electrical signal. There is intensive interest in the use of micro and nano approach for such applications, and the first part of talk is focused on implantable glucose biosensor, including Pt coil-type implantable sensor, CNT fiber based enzymatic sensor and CNT/Ni nanocomposite based non-enzymatic sensor.

To improve the life-time of glucose sensor implanted underneath the skin, a new type of Pt coil electrode was introduced, which is able to immobilize much more GOD than traditional needle type electrode. The selection of semi-permeable membrane is critical for the sensor linearity. The sensors could be survived for 4 weeks during in-vivo test, and histology revealed that the fibrous capsules surrounding hydrogel-coated sensors were thinner than before.