Day 1 :
Keynote: Implantable biofuel cells operating in vivo – Potential power sources for bioelectronics devices – From basic research to practical applications
Time : 08:45-09:10
Evgeny Katz received his Ph.D. in Chemistry from the Frumkin Institute of Electrochemistry (Moscow) in 1983. He was a senior researcher at the Institute of Photosynthesis (Pushchino), Russian Academy of Sciences (1983-1991), a Humboldt fellow at the Technische Universität München (Germany) (1992-1993), and a research associate professor at the Hebrew University of Jerusalem (1993-2006). Since 2006 he is Milton Kerker Chaired Professor at the Department of Chemistry and Biomolecular Science, Clarkson University, NY (USA). He has (co)authored over 400 papers in the areas of biocomputing, bioelectronics, biosensors and biofuel cells. Thomson Reuters included him in the list of the world’s top 100 chemists over the past 10 years as ranked by the impact of their published research. Professor Katz was also included in the list of top cited chemists prepared by the Royal Society of Chemistry with the worldwide rank 378 based on his Hirsch-index, which is currently 81.
Implantable devices harvesting energy from biological sources and based on electrochemical transducers are currently receiving high attention. The energy collected from the body can be utilized to activate various microelectronic devices. This talk is an overview of the recent research activity in the area of enzyme-based biofuel cells implanted in biological tissue and operating in vivo. The electrical power extracted from the biological sources presents use for activating microelectronic devices for biomedical applications. While some microelectronic devices can work within a fairly broad range of electrical operating conditions, others, such as pacemakers, require precise voltage levels and voltage regulation for correct operation. Thus, certain classes of electronic devices powered by implantable energy sources will require careful attention not only to energy and power considerations, but also to voltage scaling and regulation. This requires appropriate interfacing between the energy harvesting device and the energy consuming microelectronic device. The talk focuses on the problems in the present technology as well as offers their potential solutions. Lastly, perspectives and future applications of the implanted biofuel cells will be also discussed. The considered examples include a pacemaker and a wireless signal transfer system powered by implantable biofuel cell extracting electrical energy from biological sources. The design of implanted biofuel cells operating in vivo promises for future various medical electronic implants powered by implanted biofuel cells and resulting in bionic human- machine hybrids. Aside from biomedical applications, one can foresee bioelectronic self-powered “cyborgs” based on various animals which can operate autonomously using power from biological sources and used for environmental monitoring, homeland security and military applications. In all bioelectronic systems, regardless their applications and complexity, the power sources will be highly important, and implanted biofuel cell are promising devices for providing electrical power extracted from the internal physiological resources.
Time : 09:10-09:35
Yong Lei is a Chair Professor at the Technical University of Ilmenau in Germany. His current research interests focuses on template-based nanostructuring, energy-related devices (sodium-ion battery, supercapacitors and PEC cells) and optoelectronic applications of functional nanostructures and surface nano-patterns. So far he has authored 131 papers in SCI-indexed journals and 2 patents, many of them are published in first-class scientific journals, such as Nature Nanotechnology, Nature Communications, Journal of the American Chemical Society, Angewandte Chemie, Advanced Materials, Advanced Functional Materials, ACS Nano, Advanced Energy Materials, Energy & Environmental Science, Chemical Society Reviews, Progress in Materials Science, Nano Energy. Prof. Lei also received a few prestigious large projects in Europe and Germany, including ERC (European Research Council) Starting Grant and ERC Proof of Concept Grant, BMBF (Federal Ministry of Education and Research of Germany) and DFG (German Research Foundation).
Functional nanostructures have drawn intensive attention with the development of miniaturization of modern and future devices. Realization of such nanostructures presents an important task for nanotechnology research and device applications. To address this challenge, template-based method provides a perfect approach owing to the geometrical characteristics of the templates. We have developed template-based nanostructuring techniques using anodic aluminum oxide (AAO) nanopore arrays and polystyrene spheres with scalable, parallel and fast processes. Employing these techniques, three-dimensional and surface nanostructures have been fabricated. The obtained nanostructures possess large-scale arrayed configuration, high structural density, perfect regularity and cost-effectiveness, and are highly desirable for constructing energy conversion and storage devices, including solar water splitting,[2-6] supercapacitors[7-9] and rechargeable sodium-ion batteries.[10-13] The device performances demonstrated that the obtained nanostructures benefit these applications through the precise control over the structural features enabled by the geometrical characteristics of the templates.[14,15] These achievements indicate the high potential and importance of template-based nanostructuring techniques for both basic research and device applications. Especially, we proposed recently a multiple nanostructuring concept using a binary-pore AAO template, indicating a new perspective of template-based nanostructuring for device functionalization.