Abstract
In the Internet of Things (IoT) era, various devices (e.g., sensors, actuators, energy harvesters, etc.) and systems have been developed toward the realization of personal health care, smart homes/buildings and city. With the rapidly increasing number of such advanced energy harvesters, sensors and IoT systems, achieving fully self-sustained and multimodal intelligent systems is becoming more and more important to realize a sustainable smart sensing system. When sensors integrated with the artificial intelligence (AI) technology to enable the analysis function, such AI-assisted IoT systems, i.e., artificial intelligence of things (AIoT) system, achieve a higher level of intelligence for a wide range of applications. First of all, a walking stick powered by ultralow-frequency human motion and equipped with AI enabled advanced sensing features to provide a healthcare monitoring platform for motion-impaired users is introduced. The caregiving walking stick shows the potential of being an intelligent aid for motion-impaired users to help them live life with adequate autonomy and safety. Secondly, a cubic designed intelligent piezoelectric AIoT node comprising an integrated self-powered sensing and energy harvesting module with a specific frequency up-conversion (FUC) mechanism has achieved continuous power supply over a wide range and high-power density. The self-powered piezoelectric sensor in this AIoT node is investigated for driving condition monitoring and smart city applications.

Biography
Dr. Chengkuo Lee received his Ph.D. degree in precision engineering from The University of Tokyo, Tokyo, Japan, in 1996. Currently, he is the GlobalFoundries Chair professor in Engineering, and director of Center for Intelligent Sensors and MEMS at National University of Singapore, Singapore. He cofounded Asia Pacific Microsystems, Inc. (APM) in 2001, where he was Vice President of R&D from 2001 to 2005. From 2006 to 2009, he was a Senior Member of the Technical Staff at the Institute of Microelectronics (IME), A-STAR, Singapore. His research interests include MEMS, NEMS and flexible devices for IoT, energy harvesting, metamaterials and biomedical applications. He has trained 30+ PhD students graduated from ECE Dept., NUS. He has co-authored 440+ journal articles and 360+ conference papers. He holds 10 US patents. His google scholar citation is more than 24500+. He is the associate-editor-in-chief of Trans. Nanotechnology (IEEE), and editor-in-chief of Intern. J. Optomechatronics (Taylor & Francis). He is in the Executive Editor Board of J Micromechanics and Microeng. (IOP, UK). He is the Associate editor of J. MEMS (IEEE), Chip (Elsevier), and Internet of Things (Elsevier). He is also the Editor of next journals: Scientific Reports (Springer Nature), Bioelectronic Medicine (BMC, Springer Nature), CHIP (Elsevier), J. Optical Microsystems (SPIE), Journal of Sensors (Hindawi), Sensors (MDPI), and Micromachines (MDPI). He serves on steering committee and technical program committee for various conferences such as Transducers 2015, IEEE MEMS 2015, IEEE NEMS 2015, IEEE SENSORS 2018, IEEE MEMS 2019, Transducers 2019, IEEE MEMS 2020, and Transducers 2021, etc. He has also chaired many conferences including IEEE NEMS’18, OMN ’16 and ’14, ISMM’14, and Bio4Apps’13 etc.

Abstract
The integration of electronics with medical devices can enable advanced sensing, actuation, and computational capability. Yet, at the fundamental level, such integration remains challenging due to the inherent geometrical, mechanical, and material dichotomies between conventional manufactured electronics and three-dimensional systems. My research develops electronics printing strategies that are fundamentally free from the constraints of the conventional manufacturing approach, enabling the creation of biomedical devices and architecture with an unprecedented level of functional integration. First, we demonstrated the ability to incorporate active electronics with a three-dimensional construct by achieving multiscale control of nanomaterials assembly with soft matter physics phenomena. Second, we developed the ability to selectively anneal nanomaterials on temperature-sensitive constructs by exploiting metamaterials-inspired electromagnetic structure, enabling local programming of electronic & mechanical properties of spatially freeform microstructure on biomedical devices and biological substrates. Third, we explored the novel integration of freeform electronics with digitally designed architecture to create next-generation bioelectronics, such as ingestible gastric resident electronics systems and self-learning robots that can realize a surgical-free digital-based diagnosis and treatment strategy. Ultimately, we strive to overcome challenges associated with the conventional manufacturing approach, creating fundamentally new classes of bioelectronics that can address a broad range of unmet clinical and societal needs.

Biography
Yong Lin Kong is an Assistant Professor at the Department of Mechanical Engineering at the University of Utah. He received his Ph.D. from Princeton University in 2016 and was a postdoctoral associate at MIT. Yong Lin's research focuses on the additive manufacturing of nanomaterial-based functional devices and biomedical devices. For example, he has been awarded patents in “3D printed active electronic materials and devices” and “3D printed multi-functional hybrid devices and structures” and invented “gastric resident electronics.” He is a recipient of the Office of Naval Research Young Investigator Program (ONR YIP) Award, NIH Trailblazer Award, NIH R01 Award, CDMRP Discovery Award, 3M Non-Tenured Faculty Award, SME Outstanding Young Manufacturing Engineer Award, SPIE Rising Researcher Award, TMS Young Leaders Professional Development Award, Ralph E. Powe Junior Faculty Enhancement Award and Technology Review Innovators Under 35 Asia Award. (kong.mech.utah.edu)

Abstract
A major challenge in nanotechnology is to fabricate complex 3D structures with desired materials. Despite the many great efforts, the material choices are still largely limited to polymeric materials or metals. A fabrication solution for a wider class of materials without compromising the existing structural complexity, nanoscale feature sizes, and material functions remains a critical challenge. In this seminar, I will present our recent works on the parallelization of ultrafast lasers for 3D nanofabrication, achieving a record setting resolution (20 nm), laser patterning rate (300 mm3/hr), and wide material library. Specifically, an arbitrarily programmable femtosecond light sheet is generated based on the principle of spatial and temporal focusing to perform parallel material processing. We first demonstrate the use of the femtosecond light sheet to perform micro-laser machining and two-photon polymerization. Next, by combining the femtosecond projection technology with swellable hydrogels, we further expand the material variety to include metals, alloys, oxides, semiconductors, dielectric materials etc., and improve the resolution to 20 nm. Our new methods provide an effective solution to scale-up the fabrication of functional micro- and nano-structures (~$1.5/mm3). This means our technology may play a large role in fields such as healthcare, clean energy and water, computing, and telecommunications.

Biography
Dr. Shih-Chi Chen is a Professor in the Department of Mechanical and Automation Engineering at the Chinese University of Hong Kong. He received his B.S. degree in Mechanical Engineering from the National Tsing Hua University, Taiwan, in 1999; and his S.M. and Ph.D. degrees in Mechanical Engineering from the Massachusetts Institute of Technology, Cambridge, in 2003 and 2007, respectively. Following his graduate work, he entered a post-doctoral fellowship in the Wellman Center for Photomedicine, Harvard Medical School, where his research focused on biomedical optics and endomicroscopy. From 2009 to 2011, he was a Senior Scientist at Nano Terra, Inc., a start-up company founded by Prof. George Whitesides at Harvard University, to develop precision instruments for novel nanofabrication processes. His current research interests include ultrafast laser applications, biomedical optics, precision engineering, and nanomanufacturing. Dr. Chen is a Fellow of Optica (formerly OSA), senior member of SPIE, and members of the American Society for Precision Engineering (ASPE), American Society of Mechanical Engineers (ASME), and Hong Kong Young Academy of Sciences (YASHK). He currently serves as the Associate Editor of ASME Journal of Micro- and Nano-Manufacturing, IEEE Transactions on Nanotechnology, and HKIE Transactions. In 2003 and 2018, he received the prestigious R&D 100 Awards for developing a six-axis nanopositioner and an ultrafast nanoscale 3-D printer respectively.

Abstract
Semiconductor gas sensor was found by Prof. Seiyama in 1962. So far, many researchers reported a lot of materials from viewpoints of sensitivity, selectivity and stability. Our laboratory also reported important three factors such as receptor function, transducer function and utility factor, for the material designs and their integration in 2003 and 2006, respectively. In 2014, based on the integration of such factors, the gas sensor using Pd-loaded SnO2 clusters prepared by hydrothermal treatment could successfully detect toluene in ppb level. To enhance the sensor response more, we investigated the combination of such materials integration and pulse-heating of MEMS device. From 2018 through 2020, we found that such MEMS-type gas sensor has the lower detection limit for toluene gas to below 10 ppt as Ultra-High-Sensitive detection. In addition, to apply the MEMS sensor for the Super-Selective detection to aliphatic compounds such as alcohol, the sensing layer was modified by receptor of acidic metal oxide. The sensor using SnO2 nanoparticles modified by molybdenum oxide exhibited Super-Selective response to C2H5OH in comparison with CH3OH. In this lecture, I will explain MEMS-type gas sensor based on materials design to obtain Ultra-High-Sensitive and Super-Selective gas response.

Biography
Kengo Shimanoe is a Professor in the Department of Energy and Material Sciences, Faculty of Engineering Sciences, Kyushu University, Japan since 2005. He is an active member of The Ceramics Society of Japan, The electrochemical Society of Japan and U. S. He is also active in other scientific societies, some of which are being part of the Editorial Board Member of Journal of Sensors, Sensor Science and Technology, and, Sensors and Materials, a research adviser in the National Institute of Material Sciences, and a member of the board in Japan Association of Chemical Sensor. He also contributes to the GOSPEL Workshop on Gas Sensors Based on Semiconducting Metal Oxides as part of the organizing team. He has a published approximately 330 scientific papers with a total citation of over 14,500, written 14 books and has been invited to give lectures and talks on approximately 90 occasions. His current research interests include the fields of functional inorganic materials such as gas sensors, solid state ionics, defect perovskite-type oxides, oxygen-separation membrane, electrode catalysts for oxygen-reduction or -evolution cathodes, and others.

Abstract
Although graphene has been studied as wonder materials for electronics due to its outstanding charge transport properties. its lack of an electronic bandgap has hindered its application to large-scale field-effect transistor (FET) circuits, thereby making bandgap opening a key priority. Further, the fabrication of graphene devices to date conventionally requires the transfer of graphene from its growth substrate to a target substrate, which introduces defects and negatively impacts the device performance. Overcoming these challenges, we demonstrate a transfer-free approach for the low-temperature growth (~100 °C) and in-situ doping of monolayer graphene, which enables FETs with cutting-edge performance and stability. With a focus on nitrogen-doped graphene, we realize n-channel FETs with an on-off ratio of ~2x10⁸, a mobility of ~1,500 cm²V^-1s^-1, and a subthreshold swing of ~ 90 mVdec^-1. Such devices are highly reproducible and exhibit high wafer-scale uniformity and thermal and bias-stress stability. Further, our approach is highly versatile, for instance also allowing the fabrication of p-channel FETs with a mobility of ~470 cm²V^-1s^-1 and an on-off ratio of 2x10⁵. In this presentation, various applications using transfer-free graphene will be demonstrated.

Keywords: Transfer-free graphene; Low-temperature growth; Large domain size; n- and p-channel graphene-FETs; Various applications of graphene

Biography
Affiliation:
Department of Materials Science and Engineering, Chungnam National University, Daeduk Science Town, 305-764, Daejeon, Korea<

Academic Carrier:
1978. 3 – 1982. 2: Dept. of Metallurgical Engineering, Yeonsei University, BS.
1983. 3 – 1985. 2: Dept. of Materials Science and Technology, Korea Advanced Institute of Science and Technology (KAIST), M.S.
1985. 3 – 1988. 8: Dept. of Materials Science and Technology, KAIST, Ph.D. Supervisor: Prof. Ho-Gi Kim

A carrier record:
1990. 2 – 2022. 2: Department of Materials Science and Engineering, Chungnam National University, Professor
1992. 7 – 1993. 7: New Jersey State University (Rutgers University): Visiting Professor. Supervisor: Prof. Amhaid Saffari
1999. 8 – 2000. 8: North-Carolina State University: Visiting Professor. Supervisor: Prof. Anguis Kingon
2008. 2 – Present: Editor-in-Chief, The Open Biomaterials Journal
2008. 2 – Present: Editorial Board Member, The Open Materials Science Journal
2015. 8 – Present: Editorial Board Member, Scientific Report Journal
2006. 3 – Present: Director of BK project in Dept. of Mater. Sci. and Eng of CNU
2021. 6 – 2030. 2: Principle Investigator of Nano Engineering Institute from NRF.
2022. 3 – Present : Distinguished Professor in Chungnam National University

Research Area:
1) Thin film Capacitors using BMNO dielectric films on Graphene
2) Organic/Inorganic Perovskite Halide Thin Films grown via Chemical Vapor Deposition
3) Transparent conducting oxide films: AZO/(Ag, Au)/AZO multilayer via Sputtering
4) Perovskite Solar Cells using graphene top- and bottom-electrode
5) Fusion Technology of Solar, Thermoelectric, and Piezoelectric energy harvesting using single structure.
6) Antibacterial activity using Al-doped ZnO, ZnAl₂O₄, and Si_1-xZn_xO thin films with antireflection
7) 8-inch-scale graphene grown directly at 150 °C without transfer via PATCVD
8) Electrical performance of N-doped and B-doped graphene FETs based on transfer-free, 8-inch-scale, high-quality monolayer graphene grown directly at °100 C.
9) Energy harvesting using piezoelectric organic/inorganic perovskite MAPbI₃, MASnI₃, and MABrI₃ and Flexoelectricity of Zn-Al:LDH nanosheets via most facile synthesis

Abstract
The burgeoning field of wireless communication is rapidly transforming to respond to an ever-growing demand for spectrum and interconnected devices. Simple need for bandwidth combined with extremely low power consumption and component size requirements are challenging existing communication technologies and favoring the development of innovative microsystems. Microscale acoustic systems are poised to have an impact in enabling disruptive approaches that address the challenges faced by the wide deployment of mm-Wave communication systems.

This talk will present recent advancements in piezoelectric microacoustics spanning from material and processing, to devices and microsystems. I will touch upon thin film technologies such as doped AlN and lithium niobate, which have been used to support vibrations above 30 GHz. I will show how we have developed innovative acoustic resonator designs and sophisticated nanofabrication methods to support high couplings and high quality factors between 30 and 50 GHz. I will comment on how the exceptional characteristics of these devices can be employed to demonstrate disruptive phased array communication systems capable of direct filtering right at each antenna element.

Biography
Gianluca Piazza is the ST Microelectronics Professor in the Department of Electrical and Computer Engineering at Carnegie Mellon University and the Director of the CMU Nanofabrication Facility. Prior to joining CMU he was the Wilf Family Term Assistant Professor in the department of Electrical and Systems Engineering at the University of Pennsylvania. His research interests focus on piezoelectric micro and nano electromechanicalsystems (M/NEMS) for wireless communications, acousto-optics, chemical/biological detection, ultrasonics, and mechanically-assisted computing. He also has a general interest in the areas of micro/nano fabrication techniques and integration of micro/nano devices with state-of-the-art electronics. He has more than 15 years of experience working with piezoelectric materials and devices. He holds several patents in the field of micromechanical resonators some of which have been acquired by industry. He received the IBM Young Faculty Award in 2006 and has won, with his students, the Best Paper Awards at the IEEE Frequency Control Symposium in 2008, 2009, 2011 and 2013, the IEEE Ultrasonic Symposium in 2012 and the International Microwave Symposium in 2022. He serves as Editor-in-Chief for the IEEE Journal of MicroElectroMechanical Systems (JMEMS).

Abstract
The author has developed distributed fiber-optic sensors which can measure strain distributions along optical fibers and can be embedded into fiber reinforced plastics. Strain can be converted to stress at sensing points, and the displacement can be reconstructed by integration or inverse finite element method (iFEM) based on strains measured at multiple points. When the displacement is identified in the entire structure in resistance to external forces, it can be employed for stress reconstruction at unmeasured points. This means that a digital twin can be established to provide what we see in the results of FEM during design process. The concepts and technologies of digital twin for composite structures, providing the overall stress and displacement by using embedded strain sensors and FEM, enhance the applicability of composite structures in terms of safety and efficiency. In this presentation, advanced sensing technologies with optical fibers are introduced, and then developments on digital twin for composite structures with embedded fiber-optic sensors and other technologies are shown.

Biography
He is a full professor of Graduate School of Frontier Sciences, the University of Tokyo and a member of the Japan Society of Mechanical Engineers, the Society of Naval Architectures of Japan, the Japan Society for Composite Materials, Japan Society of Civil Engineers and Japan Society of Maintenology. His research topics are composites, digital twin, structural health monitoring with fiber-optic sensors, mainly for marine structures. He received the B.E., M.E., and Dr.Eng. degrees in the University of Tokyo in 1996, 1998, 2001, respectively.

Abstract
The paramount importance of dislocations in understanding the structural properties of metallic materials is undeniable. In recent years, many new high-performance alloys or metallic materials made from advanced manufacturing methods have been introduced with the promise of unusual or unprecedented properties. In many cases, they exhibit far greater compositional and microstructural complexities at the scale of a dislocation than those of traditional materials, warranting study of the underlying dislocation dynamics. In this talk, we will discuss innovations and applications of a 3D computational materials method designed to model discrete dislocation pathways in these complex systems. These applications include multi-principal element alloys, materials containing multi-phase nanoprecipitates, materials with a heterogeneous distribution of nanovoids, temperature-sensitive glide of dislocations in hexagonal metals, and nanolaminates dense with thick, biphase interfaces. When pertinent, we will highlight instances when these 3D calculations led to analytical relationships that would apply to a much broader set of materials than those explicitly modeled.

Biography
Irene J. Beyerlein is the Robert and Victoria Mehrabian Interdisciplinary Professor at the University of California at Santa Barbara with a joint appointment in the Mechanical Engineering and Materials Departments. After receiving her Ph.D. degree in Theoretical and Applied Mechanics at Cornell University in 1997, she began a postdoctoral appointment as a J.R. Oppenheimer Fellow at Los Alamos National Laboratory, where she remained on the scientific staff in Theoretical Division, until 2016. She has published one book, nine book chapters, and more than 430 peer-reviewed articles in the field of structural composites, materials processing, multiscale modeling of microstructure/property relationships, deformation mechanisms, and polycrystalline plasticity. She is an editor for Acta Materialia and Scripta Materialia and an associate editor for Modelling and Simulation in Materials Science and Engineering. In recent years, she has been awarded the Los Alamos National Laboratory Fellow’s Prize for Research (2012), the International Plasticity Young Researcher Award (2013), the TMS Distinguished Scientist/Engineering Award (2018), the Brimacombe Metal (2019), MRS Fellow (2021), and TMS Fellow (2022).

Abstract
The future of healthcare wearables lies in continuous sensing and monitoring in an unobtrusive manner. Tactile sensing is especially important to capture mechanotransduced signals arising from the body, or as a result of interactions with the external environment. However, conventional sensors are rigid, stiff and obtrusive. Therefore, it is important to confer flexibility and stretchability to our biomedical sensors, while maintaining its sensitivity and robustness. Here, we develop novel liquid metal-based microfluidic and microtubular sensors that possess high flexibility, durability, and sensitivity. The sensors comprise a soft elastomer-based microfluidic template encapsulating a conductive liquid metal which serves as the active sensing element of the device. This sensor is capable of distinguishing and quantifying the various vital signals as well as bodily movements it is subjected to. We demonstrated healthcare applications of our sensors in rehabilitation, artificial sensing, disease tracking such as that for diabetic patients and virtual reality training in the health metaverse. Overall, our work highlights the potential of the liquid-based microfluidic sensing platforms in a wide range of healthcare applications and further facilitates the exploration and realization of functional liquid-state device technology.

Biography
Professor Chwee Teck Lim is the NUS Society Chair Professor of Biomedical Engineering and Director of the Institute for Health Innovation and Technology at the National University of Singapore. His research interests are in human disease mechanobiology as well as development of innovative microfluidic and wearable sensor technologies for biomedical applications. He has co-authored over 450 journal publications and delivered more than 430 plenary/keynote/invited lectures. He is also a serial entrepreneur having started six companies. Prof Lim has been elected Fellow of the US National Academy of Inventors, IUPESM, AIMBE, IAMBE, ASEAN Academy of Engineering and Technology, Academy of Engineering, Singapore and Singapore National Academy of Science. He and his team have garnered over 100 research awards and honours including Asia’s Most Influential Scientist, Highly Cited Researcher, IES Prestigious Engineering Achievement Award, ASEAN Outstanding Engineering Achievement Award, Asian Scientists 100, Wall Street Journal Asian Innovation Award (Gold) and the President's Technology Award among others.

Abstract
Electrodermal activity (EDA) is a popular index of mental stresses and emotional swings. EDA has found increasing applications in psychiatry, neurology, operator and consumer assessment, as well as virtual reality and gaming. State-of-the-art EDA sensors suffer from obstructiveness on the palm or low signal fidelity off the palm. Our previous invention of sub-micron-thin imperceptible graphene e-tattoos (GET) [1, 2] is ideal for unobstructive EDA sensing on the palm. However, robust electrical connection between ultrathin devices and rigid circuit boards is a long-missing component for the ambulatory use of GET outside of lab settings. To minimize the well-known strain concentration at their interfaces, we propose heterogeneous serpentine ribbons (HSPR), which refer to a GET serpentine partially overlapping with a gold serpentine without added adhesive. A fifty-fold strain reduction in HSPR vs. heterogeneous straight ribbons (HSTR) has been discovered and understood. The combination of HSPR and a soft interlayer between the GET and an EDA wristband enabled ambulatory EDA monitoring on the palm in free- living conditions. A newly developed EDA event selection policy leveraging an unbiased selection of phasic events validated our GET EDA sensor against gold standards.[3]

Biography
Dr. Nanshu Lu is the Frank and Kay Reese Professor at the University of Texas at Austin. She received her B.Eng. with honors from Tsinghua University, Beijing, Ph.D. from Harvard University, and then Beckman Postdoctoral Fellowship at UIUC. Her research concerns the mechanics, materials, manufacture, and human/robot integration of soft electronics. She has published more than 110 journal articles with more than 21,800 citations. Her h-index is 57. She is an ASME Fellow and a Clarivate (Web of Science) highly cited researcher. She is currently an Associate Editor of Nano Letters and Journal of Applied Mechanics. She has been named 35 innovators under 35 by MIT Technology Review (TR 35) and iCANX/ACS Nano Inaugural Rising Star. She has received the US NSF CAREER Award, the US ONR and AFOSR Young Investigator Awards, the 3M non-tenured faculty award, and the 2022 ASME Thomas J.R. Hughes Young Investigator Award. She has been selected as one of the five great innovators on campus and five world-changing women at the University of Texas at Austin. For more information, please visit Dr. Lu’s research group webpage at https://sites.utexas.edu/nanshulu/ and follow her on Twitter: @nanshulu.

Abstract
Micromotors represent one of the most exciting horizons in micro and nanotechnologies. The utilization of self- propelled micromotors in (bio)chemical assays has led to a fundamentally new approach where their continuous movement around the sample and the mixing associated effect, all this as a collective behavior, greatly enhances the target-receptor interactions and hence the performance of the bioassay [1-3].

In our lab, we are focusing on the design and development of micromotors which are constituted by (nanostructured) layers (tubular-based shape) and particles (Janus-based shape) that confer them self-propulsion using (photo)-catalytic propulsion and magnetic guidance with compatibility in biological media due its tremendous significance, as it has been critically reviewed [4-6]. They also smartly incorporate nanomaterials and molecular recognition-based functionalization to obtain sensitivity and exquisite selectivity on board using electrochemical and fluorescence detection approaches. Also, we have explored the coupling of micromotors even with electrochemical microfluidics. In our experience, we humbly found that micromotor technology is an attractive alternative to performing fast, and reliable bioassays and diagnostic testing, especially when an extremely low volume of samples is available or when the analysis must be performed in a micro-size environment.

In this Keynote, selected micromotors-based bioassays with potential in diagnostics, and some future directions will be discussed. But ultimately, we try to answer the talk title's central and disturbing question.

Biography
Dr. Alberto Escarpa is a Full Professor of Analytical Chemistry at the University of Alcalá. He has received several awards such as the NATO Fellowship to perform postdoctoral research at the New Mexico State University (USA) in 2001, the "Young Investigator Award" by the University of Alcala in 2003, the International Dropsens Award “Best research work in applied electroanalytical chemistry” (finalist) in 2015 and the Excellence Award in Doctoral Thesis Direction of Sciences in 2021. He served as a guest professor in international Universities and research centers such as the University of California San Diego (EEUU), the International Center for Young Scientists in National Institute for Materials Science (Tsukuba, Japón) or CIDETEQ (Querétaro, México). He has also been Visiting Professor at Buenos Aires University and currently, he is Visiting Professor at Universidad Nacional Agraria La Molina (Peru) and Prince of Songkhla University, Hat Yai, Songkhla (Thailand). Prof. Escarpa is also a member of the Collegium of the Ph.D. in Food Science at Teramo University (Italy).

He is the leader and founder of the “Analytical Miniaturization and Nanotechnology” research group since 2003. His main research interests are analytical miniaturization and nanotechnologies, new nanomaterials for optical and electrochemical (bio)-sensing, electrochemical microfluidics, lab-on-a-chip technology, and artificial micromotors.

He has co-authored more than 200 peer-reviewed articles in leading international peer-review journals, 6 international patents, and several book chapters, yielding an h-index of 50. He has recently been included in the top 1% of most cited chemists in the world (2020, 2021 lists by Sandford University. His works have been featured and highlighted on several occasions as cover in top journals (Angew. Chem. Int. Ed., Chem. Sci., Chem. Eur. J., Lab Chip, Anal. Chem., Analyst and Anal. Sen.) and social scientific media (Chemical World (RSC), Separations Now from Wiley and C&EN news from ACS, Nanowerk). He has also supervised 20 Ph.D. Doctoral Thesis (with 20 awards and honors) and several postdoctoral researchers granted highly competitive fellowships. He has edited and authored several books including Miniaturization of analytical systems: principles, designs, and applications (Wiley, 2009), Food Electroanalysis (2015, Wiley), and Carbon-based Nanomaterials in Analytical Chemistry (RSC, 2019). He has given more than 50 invited lectures at the most prestigious conferences of micro and analytical nanotechnologies. He is a member of the Editorial Board of Anal. Chem., Anal & Sen., Electrophoresis, Appl. Mat. Today, Sensors and J. of Nanobiotech. He has been Associate Editor for RSC Advances (2015-2019) and Associate Editor for Microchimica Acta (2018-2019). He is currently Editor in Chief for Microchimica Acta.

Abstract
With many outstanding characteristics, two-dimensional (2-D) materials are suitable for next-generation electronic device applications. This talk will highlight the important role of 2-D material-based advanced devices in the further development of Moore’s Law. On the one hand, the transistor with the smallest gate length in the world will be introduced. By using a graphene edge with thin single-atom layer thickness and excellent conductivity as the gate electrode, and controlling the switch of vertical MoS2 channel through the lateral electric field, sub-1-nm physical gate length, pA level off current, and 105 on/off ratios can be achieved, which break through the existing transistor gate structure and size limitation. On the other hand, based on the highly sensitive sensing capabilities and excellent thermoacoustic characteristics of 2-D materials, the team’s research progress in novel intelligent electronic devices and integrated systems will be introduced. Including the first graphene sound source and graphene intelligent artificial throat, and the recently developed electrooculography and tactile perception collaborative interface for a new generation of human-computer interaction, etc., demonstrating the important potential of two-dimensional material devices in intelligent information chip technology beyond Moore's law.

Biography
Tian-Ling Ren is the Professor at the School of Integrated Circuit, Tsinghua University, and he also serves as deputy dean of the School of Information Science and Technology, Tsinghua University. He has long been committed to the research on 2D material-based micro/nano devices. He has published more than 750 journal and conference papers, such as Nature, Nature Electronics, Nature Machine Intelligence, Advanced Materials, and IEDM, and he was awarded the Highly Cited Scholar in mainland China by Elsevier for many times. He is also a key inventor of more than 70 patents. His research in the field of novel 2D material devices were awarded the first prize in natural science by the Chinese Society of Electronics (2018). He serves or has served as Vice President of IEEE Electron Devices Society (the first time in mainland China), executive committee of IEDM (the first time in mainland China), council member of China Micro and Nanotechnology Society, and many other important academic positions.

Abstract
The ongoing trend of device scaling for next-generation semiconductor devices involves the rapid progress of micro-patterning processes. While top-down optical lithography techniques can produce precise and high-resolution features, their equipment and process costs remain extremely high. Conversely, bottom-up additive semiconductor printing technologies have the advantage of simplicity and low equipment and process costs. Nevertheless, the low resolution or productivity of existing printing technologies presents a challenge for next-generation semiconductor manufacturing. This study presents the high-speed printing of nanoscale semiconductor materials and subsequent research into next-generation neuromorphic electronic devices. Specifically, we introduce artificial synapses using a single strand of semiconductor nanowires that mimic the structure and shape of nerve fibers, and precisely emulate the diverse synaptic plasticity of biological synapses. These artificial synapses have applications not only in neuromorphic computing,[1] a representative research field of neuromorphic electronics, but also in neuromorphic robotics and bioelectronics,[2,3,4] which are novel fields previously unexplored. We demonstrated the artificial afferent nerve which form a hybrid reflex arc by connecting with the insect leg [2]. Our recent study demonstrated the potential to provide a wearable and low-power neurorehabilitation tool for paralyzed limbs by reproducing coordinated bipedal locomotion in anesthetized mouse limbs, including ‘kicking a ball’ and ‘walking/running’.[4] Our research on neuromorphic electronics can provide a new technological driving force in the development of next-generation neuromorphic computing, smart robotics, bioelectronics, and wearable healthcare electronics.

[1] W. Xu, S.-Y. Min, H. Hwang, T.-W. Lee*, Science Advances, 2, 6, e1501326 (2016)
[2] Y. Kim+, A. Chotors+, W. Xu+, Z. Bao*, T.-W. Lee*, et al., Science, 360, 6392, 998-1003 (2018)
[3] Y. Lee+, J. Y. Oh+, Z. Bao*, T.-W. Lee*, et al., Science Advances, 4, 11, eaat7387 (2018)
[4] Y. Lee+, Y. Liu+, D. -G. Seo+, Z. Bao*, T. -W. Lee*, et al., Nature Biomedical Engineering, DOI: 10.1038/s41551-022-00918-x

Biography
Tae-Woo Lee is a professor in the Department of Materials Science and Engineering at Seoul National University, Korea. He received his Ph.D. in Chemical Engineering from Korea Advanced Institute of Science and Technology (KAIST), Korea, in 2002. He joined Bell Laboratories, Lucent Technologies, USA, as a postdoctoral researcher in 2002 and then worked at Samsung Advanced Institute of Technology as a member of the research staff (2003–2008). He was an assistant and associate professor in the Department of Materials Science and Engineering at Pohang University of Science and Technology (POSTECH), Korea, until August 2016. He received a prestigious Korea Young Scientist Award from the President of Korea in 2008 and the Scientist of the Month Award from the ministry of science, ICT and future planning in 2013. He was honored as 2020 Materials Research Society (MRS) Fellow. He is author and co-author of 270 papers in high-impact journals including Nature, Science, Nature Photonics, Nature Nanotechnology, Nature Review Materials, Science Advances, Nature Communications, Joule, PNAS, Energy and Environmental Science, Advanced Materials, Angewandte Chemie, and ACS Nano. He is also the inventor or co-inventor of 420 patented technologies. He currently serves as Associate Editor of the journal of Organic Electronics (Elsevier) and an editorial board member of the journals of Advanced Materials (Wiley), FlatChem (Elsevier), EcoMat (Wiley), Nano Convergence (Springer), and Semiconductor Science and Technology (IOP). His research focuses on organic, organic–inorganic hybrid perovskite, and carbon materials, and their applications to flexible electronics, printed electronics, displays, solid-state lightings, solar energy conversion devices, and bioinspired neuromorphic devices.