Courtesy Professor in the Department of Chemistry and Department of Materials Science and Engineering - Stanford University
Director of Stanford Wearable Electronics Initiative (eWEAR)
Skin-Inspired Organic Electronics
Skin is the body’s largest organ, and is responsible for the transduction of a vast amount of information. This conformable, stretchable, self-healable and biodegradable material simultaneously collects signals from external stimuli that translate into information such as pressure, pain, and temperature. The development of electronic materials, inspired by the complexity of this organ is a tremendous, unrealized materials challenge. However, the advent of organic-based electronic materials may offer a potential solution to this longstanding problem. Over the past decade, we have developed materials design concepts to add skin-like functions to organic electronic materials without compromising their electronic properties. These new materials and new devices enabled arrange of new applications in medical devices, robotics and wearable electronics. In this talk, I will discuss several projects related to engineering conductive materials and developing fabrication methods to allow electronics with effective electrical interfaces with biological systems, through tuning their electrical as well as mechanical properties. The end result is a soft electrical interface that has both low interfacial impedance as well as match mechanical properties with biological tissue. Several new concepts, such as “morphing electronics” and “genetically targeted chemical assembly - GTCA” will be presented.
Zhenan Bao is Department Chair and K.K. Lee Professor of Chemical Engineering, and by courtesy, a Professor of Chemistry and a Professor of Material Science and Engineering at Stanford University. Bao founded the Stanford Wearable Electronics Initiate (eWEAR) in 2016 and serves as the faculty director.
Prior to joining Stanford in 2004, she was a Distinguished Member of Technical Staff in Bell Labs, Lucent Technologies from 1995-2004. She received her Ph.D in Chemistry from the University of Chicago in 1995. Shehas over 550 refereed publications and over 65 US patents with a Google Scholar H-Index >160.
Bao is a member of the National Academy of Engineering and the National Academy of Inventors. She is a Fellow of MRS, ACS, AAAS, SPIE, ACS PMSE and ACS POLY.
Bao was selected as Nature’s Ten people who mattered in 2015 as a “Master of Materials” for her work on artificial electronic skin. She was awarded the inaugural ACS Central Science Disruptor and Innovator Prize in 2020, the Gibbs Medal by the Chicago session of ACS in 2020, the Wilhelm Exner Medalby Austrian Federal Minister of Science 2018, ACS Award on Applied Polymer Science 2017, the L'Oréal-UNESCO For Women in Science Award in the Physical Sciences 2017, the AICHE Andreas Acrivos Award for Professional Progress in Chemical Engineering in 2014, ACS Carl Marvel Creative Polymer Chemistry Award in 2013, ACS Cope Scholar Award in 2011, the Royal Society of Chemistry Beilby Medal and Prize in 2009, the IUPAC Creativity in Applied Polymer Science Prize in 2008.
Bao is a co-founder and on the Board of Directors for C3 Nano and PyrAmes, both are silicon-valley venture funded start-ups. She serves as an advising Partner for Fusion Venture Capital.
Boris N. Chichkov
In this lecture, we will discuss laser-based techniques applied for precise generation of 3D scaffolds for tissue engineering and for printing living cells and microorganisms into 3D patterns.
For the scaffold generation, two-photon polymerization (2PP) technique is applied, which allows writing CAD structures directly into the volume of photosensitive polymer solutions. Scaffolds from different biomaterials like organic-inorganic Sol-Gel-Composites (e.g., zirconium-hybrids), biodegradable polymers (e.g., polylactic acid (PLA), polycaprolactone (PCL), polyethylene glycol (PEG)), and hydrogels (e.g., gelatin, hyaluronic acid, chitosan, alginate, gellan gum) or hydrogel blends, have been generated with this technique. Applications of this technique for in vitro development of human iPSC-derived functional neuronal networks will be discussed.
For arranging cells in 3D patterns, laser-assisted bioprinting (LAB) based on the laserinduced forward transfer process is used. Different cell types, including primary cells, stem cells, and iPS cells embedded in hydrogels as extra-cellular matrix, have been printed. Our current progress in laser printing of microorganisms will be also discussed.
Both 2PP and LAB techniques are capable of advancing 3D cell culture towards CAD defined and precisely arranged 3D cell models and “organ-on-chip” systems. Printed tissue, for example skin, can be used for analyzing the effect of agents like pharmaceuticals or cosmetics ex vivo and, by applying human primary cells, it might be applied instead of animal tests.
Professor at the Leibniz University Hannover, Institute of Quantum Optics, Hannover, Germany
Graduated with honors and received PhD in Physics from Moscow Institute of Physics and Technology in 1981. Started his scientific carrier at P.N. Lebedev Institute of Physics, Russian Academy of Sciences in Moscow and later worked in many research centers worldwide. At present, he is Professor of Physics at Leibniz University Hannover, Institute of Quantum Optics and Chair of Nanoengineering.
Scientific areas: laser physics and laser applications, nanoengineering, additive manufacturing technologies, quantum and nonlinear optics, nano- and biophotonics, biomedical implants and devices, tissue engineering and regenerative medicine.
Phone: +(49) 511 762 17771
John A. Rogers
Northwestern University, USA
Mechanical Assembly as a Route to 3D Micro/nanosystems
Complex, three dimensional (3D) assemblies of micro/nanomaterials form naturally in biological systems, where they provide sophisticated function in even the most basic forms of life. In spite of their broad potential utility in man-made devices, design options for analogous abiotic 3D mesostructures are severely constrained by the comparatively primitive capabilities that are available with established techniques for materials growth, assembly and 3D printing. This talk summarizes progress on strategies that rely on geometric transformation of preformed 2D functional micro/nanostructures into 3D architectures by controlled processes of actively induced compressive buckling. The emphasis is on the foundational materials and mechanics principles, computational approaches that enable inverse designs, and examples of applications in areas ranging from thermoelectrics to microelectromechanical systems to biologically inspired open mesoscale microfluidic/electronic networks as functional interfaces to 3D cell cultures, including spheroids, organoids, assembloids and mini-brains.
Professor John A. Rogers obtained BA and BS degrees in chemistry and in physics from the University of Texas, Austin, in 1989. From MIT, he received SM degrees in physics and in chemistry in 1992 and the PhD degree in physical chemistry in 1995. From 1995 to 1997, Rogers was a Junior Fellow in the Harvard University Society of Fellows. He joined Bell Laboratories as a Member of Technical Staff in the Condensed Matter Physics Research Department in 1997, and served as Director of this department from the end of 2000 to 2002. He then spent thirteen years on the faculty at University of Illinois, most recently as the Swanlund Chair Professor and Director of the Seitz Materials Research Laboratory. In the Fall of 2016, he joined Northwestern University as the Louis Simpson and Kimberly Querrey Professor of Materials Science and Engineering, Biomedical Engineering and Medicine, with affiliate appointments in Mechanical Engineering, Electrical and Computer Engineering and Chemistry, where he is also Director of the recently endowed Institute for Bioelectronics. He is a member of the National Academy of Engineering, the National Academy of Sciences, the National Academy of Medicine, the National Academy of Inventors and the American Academy of Arts and Sciences.
Sensors: Cogito, Ergo Sum
When I started my journey into sensor world, sensors were an anomaly. Today, after only a quarter of a century, the world around us is full of sensors, most of which are connected to the cloud. By measuring multiple variables in the analog world and digitalizing them, sensors are a key enabler of the third and fourth waves of Artificial Intelligence Era: the Sensing AI and the Autonomous AI Eras, respectively. Daily and with tireless pace, the sensors inflate the Big Data digital world sphere. Internet of Things and Augmented reality technologies allow human kind to properly use the data collected by the sensors. But this is only one face of the coin. Indeed, once these data are fed in the latest generation algorithms of the big companies, they boost the profit of those companies and we became the means to others’ end. Sensors became a new source of human behavioral surplus with more predictive power, accelerating the transition toward surveillance capitalism, where free will and critical thinking are at risk.
In this talk, after highlighting the key milestones of sensor development in the last twenty-five years and the future trend, I will argue how I see feasible the symbiosis between the Big Data, free will, critical thinking and a more transparent digital world.
Benedetto Vigna is STMicroelectronics’ President, Analog, MEMS and Sensors Group, and has held this position since January 2016. He is a member of ST’s Executive Committee since May 31st, 2018.
Vigna joined ST in 1995 and launched the Company’s efforts in MEMS. Under his guidance, ST’s MEMS sensors established the Company’s leadership with large OEMs in motion-activated user interfaces. Vigna has piloted ST’s successful moves into microphones, e-compasses, and touch-screen controllers, as well as environmental sensors, micro-actuators, industrial and automotive sensors, and low-power radios for IoT. Vigna’s mandate was further expanded with analog ICs and RF products (2011) and smart-power devices for OEMs and mass market (2016). ST’s Imaging division moved under his management in late 2017.
Vigna has more than 200 patents on micromachining, authored numerous publications, and sits on the boards of several EU-funded programs. Vigna’s contributions to the industry have been recognized with the MEMS Industry Group’s Executive of the Year Award (2013), the European SEMI Award (2013), the IEEE Frederik Philips Award (2015), and Manager of the Year 2017 by German magazine Markt & Technik. He joined the MEMS & Sensor Industry Group board in June 2019. Since February 2020, Vigna has been a member of Electronics Cluster Advisory Board (CAB) for the Agency for Science, Technology and Research (A*STAR) of Singapore.
Since June 2020 he is also Member of the Board of Technical Advisors of Leonardo Company.
Benedetto Vigna was born in Potenza, Italy, in 1969, and graduated cum laude with a degree in Subnuclear Physics from the University of Pisa, Italy.
Technological developments in the study of the health impact of environmental exposures
With the word “exposome” we refer to the sum of all exposures (from conception onwards) of an individual, with particular focus on critical periods of life, e.g. in utero or in childhood. This is a new branch of environmental epidemiology that couples large population studies with technological developments, including the use of “sensors” and the measurement of molecules in the body. In the Molecular Signatures and Disease Pathways programme at the MRC Centre for Environment and Health we aim to improve our understanding of the causal link between exposures to common environmental contaminants and diseases, by characterizing the individuals’ external and internal exposome.
Our research involves large population studies with collection of biological samples, using novel study designs and advanced multi-omic technologies (including epigenetics, proteomics, transcriptomics or metabolomics) to identify biomarkers of exposure and/or disease.
The ultimate goal of this research is to reduce uncertainties in assessing the risk related to common environmental contaminants, by characterising the molecular signatures (biomarkers) of these exposures and identifying plausible pathways or networks through which they lead to disease initiation or progression. We are also exploring new approaches to measuring external exposures, including the use of silicone wristbands and other sensors.
Paolo Vineis is Chair of Environmental Epidemiology at Imperial College London and Visiting Scientist at the Italian Institute of Technology (Genova). He is a leading researcher in the field of molecular epidemiology and his latest research focuses on environmental exposures and intermediate markers from ‑omic platforms in large epidemiological studies. He also investigates the effects of climate change on non-communicable diseases. Paolo Vineis is coordinator of the European Commission funded Exposomics (on air pollution) and Lifepath (H2020, on socio-economic inequalities and ageing) projects, both based on the development of omic technologies, and is a principal investigator or co-investigator of numerous international projects. He has more than 1000 publications in journals such as Nature, Science, Lancet, and Lancet Oncology. He is the author of “Health without Borders. Epidemics in the Era of Globalization”, Springer 2017.