2nd World Congress on Nano Science and Nano Technology August 10-11, 2018 Osaka,Japan

Biography:

Dr. Yung Joon Jung is Professor at Northeastern University, Department of Mechanical and Industrial Engineering and co-faculty director at Kostas Advanced Nano Characterization Center at Kostas Research Institute, Northeastern University. He received Ph.D. in Materials Engineering from Rensselaer Polytechnic Institute, 2003. He worked as a Postdoctoral Fellow at Rensselaer, and joined Northeastern University at 2005. Prof. Jung’s research focuses on investigating new synthetic routes for low dimensional nanomaterials and engineering their molecular structures. He also develops nanomanufacturing processes such as assembly and integration of nanomaterials and nanostructured architectures for nanoelectronics, flexible devices, various sensors and energy storage applications supported by National Science Foundation, Department of Defense, US Army, Ministry of Industry in Republic of Korea and other industries. He published over 65 articles in journals and three book chapters. He is also a co-founder of Guradion Technologies that develop networkable high performance ion and radiation sensors.

Abstract:

Over the past two decades, researches on low-dimensional carbon nanostructured materials (SWCNT and graphene) designed for a variety of sensor applications have made remarkable progress. However scalable fabrication and engineering of high performance sensors that harness 2-3 dimensional nano/micro architectures of these nanomaterials have remained largely elusive. Such methodologies will allow unprecedented device architectures fully utilizing superior physical and chemical properties of these nanomaterials for high performance and low SWaP sensors. Here we present some of our progresses in assembly and engineering of singlewalled nanotube networks and building 2-3D architectures for broad ranges of high performance chemical, optical and ion sensors by combining state-of-the-art assembly and transfer based nanomanufacturing strategies developed in our laboratory.

Biography:

Jean-Luc Pelouard has completed his PhD from Paris-Sud University at Orsay France, and postdoctoral studies from NCSU at Raleigh, NC USA. Since 2000 he is “Directeur de Recherche” at the Centre National de la Recherche Scientifique (CNRS). He is currently co-managing the Common Research Laboratory MiNaO between CNRS and ONERA that is devoted to both fundamental and applied studies on infrared properties of sub-wavelength nanostructures (more details on minao.fr). He has published more than 150 papers in reputed journals. He holds 15 international patents and has supervised 22 PhD theses

Abstract:

Biography:

Masumi Saka has received his Bachelor of Engineering degree in 1977 and his Doctor of Engineering degree in Mechanical Engineering in 1982, both from Tohoku University, Sendai, Japan. He became a Professor at Tohoku University in 1993. His research interests lie in the evaluation of materials system and the fabrication of metallic micro- and nano-materials. He is an Editor of a book entitled “Metallic Micro and Nano Materials”.

Abstract:

Migration phenomena of atoms and ions have been known as negative factors, resulting in the deterioration in the electronic devices through the formation of voids, hillocks, whiskers and dendrites. For instance, the electromigration (EM), stress-induced migration (SM) and Electrochemical Migration (ECM) are owing to driving forces of electron flow, mechanical stress gradient and electric field, respectively. EM forms voids and hillocks at the ends of cathode and anode in interconnect. SM generates hillocks and whiskers in the thin films and interconnects. ECM precipitates the dendrites with fractal shape in water and on the surface of electrode. These migrations have often been studied on Al, Sn and Cu elements which are widely used as interconnects in devices and several countermeasures were proposed to improve the reliability of devices. Recently, the fabrication techniques of micro/nano materials have been developed by applying the scientific knowledge obtained from the prevention researches. Micro/nano materials with shapes of wire, rod, tube and needle are promising materials for enhancing the device performance. The trial fabrication and synthesis techniques have been demonstrated to grow upcoming materials. In particular, our group has developed the fabrication techniques of micro/nano materials by using EM, SM and ECM. In this presentation, our trials of the fabrication techniques are reviewed for getting an insight into advanced fabrication and application of the materials.

Biography:

Dr. Shengyong Xu received B. Sc. in Physics from the Peking University in 1988, and Ph.D. degree from Department of Physics, National University of Singapore in 1999. He is currently a professor with Department of Electronics, School of Electronics Engineering and Computer Sciences, Peking University. He has published more than 200 journal and conference papers. His group currently works on the physics mechanism of electrical communication among neuron cells and normal cells, brain modeling, memory mechanism of a brain, temperature sensing at the cell and sub-cell levels, etc.

Abstract:

In this talk, we will show that synapse may play a crucial role in memory function and brain working mechanism [1,2]. We presented a model, stating that data for memory are stored and retrieved in the form of a strongly connected network of neurosomes, patterns of which form topological “2D codes” in layered neurons in a brain. In different reaction modes, a chemical synapse or a mixed synapse could turn into an electrical synapse. These transitions, together with an echoing process between two neighboring layers of neurosomes could establish temporary memory and long-term memory information in the forms of neurosome-based 2D codes. The size of a synapse is only around one micrometer, and the gap between two connecting synapses is of nanometer scale. Why some connections could last for 10-50 years, while some others only last for seconds? Are there reverse processes so that strongly connected synapses could depart, thus leading to fresh functions of a brain? These are interesting open questions.

We will also show that a transient ion current passing through a protein channel embedded in a membrane creates a pulsed, soliton-like electromagnetic (EM) wave. This kind of EM pulses propagate well in the networks of dielectric phosphorous lipid bilayers. In an electrolyte-membrane-electrolyte structure defined as soft-material waveguide, an EM wave may transmit with a higher efficiency than in cytoplasm [3,4]. Such a scenario explains better some unique phenomena observed in the nature, such as the “simultaneous phenomenon” observed in prey behavior of flytraps and discharge of electric ells, where a big amount of reactors in a biosystem almost simultaneously respond to a single input signal and complete reactions within milliseconds .

We will discuss the impacts of nanoscale events on the neural functions of lives.