SF Bay Area Nanotechnology Council

IEEE

Atomic Layer Deposition of 2D Dichalcogenides at Wafer Scale

Dr. Thong Ngo, EMD Electronics

Nano Journal Club (11:30 am – 12 noon)

Nano Journal Club is hosting a discussion of the article titled:

Challenges for Nanoscale CMOS Logic Based on 2D Materials

https://stats.sender.net/link_click/FRPfAVdc3N_BGeds/dfa65620596de66beb5b39ac6343e192

Attendees are encouraged to participate in the Nano Journal Club discussion. You can access the paper using the embedded link.

Seminar (12:10 pm – 12:55 pm):
Atomic Layer Deposition of 2D Dichalcogenides at Wafer Scale
2D Transition metal dichalcogenide (TMD) materials have opened a route to continue the down-scaling trend of semiconductor technology.

The synthesis of conformal high quality 2D TMDs on 300 mm wafers is required to unlock the potential application of these materials in electronic devices. EMD Electronics is establishing a platform for TMD development using atomic layer deposition (ALD).

The talk will be focusing on 300 mm wafer-scale ALD deposition of TMD materials at temperatures ranging from 350 to 600 °C. The proposed ALD approach contributes to the efforts in developing high-quality 2D TMD materials that offer high performance and meet the down-scaling demand.

 In the past 3 years, Thong and the EMD Electronics Team at San Jose have been developing an ALD 2D materials platform focusing on TMDs for high mobility channel and Cu barrier/liner applications

Dr. Thong Ngo is an R&D engineer at EMD Electronics.

Thong finished his Ph.D. in Chemical Engineering from The University of Texas at Austin in 2015. His Ph.D. work explored functional crystalline oxides on Si and Ge for electronics using atomic layer deposition (ALD).

Thong joined Intermolecular Inc., a subsidiary of EMD Electronics, in 2015 where he has been working on materials process development, characterization, and integration for memory applications.

Hybrid Event
This will be a Hybrid Event {In-Person & Zoom linked]

Those planning to attend in person should arrive early. They will need to complete an electronic check-in before being admitted into Intermolecular.Enter the rear of the building from Orchard Parkway. You should park on the back side off of Orchard Parkway.

If you will be unable to arrive in-person before the seminar starts – please plan on joining via Zoom; All ticket registrants will be sent Zoom links before the event. Information will be sent to the email address entered when you register.

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Cascade of electronic transitions in magic-angle twisted bilayer graphene

Dr. Dillon Wong, Assoc. Research Scholar, Princeton

Fri March 3, 11:30 AM – Virtual Event – Free!

Twisted bilayer graphene, a material constructed from rotating two sheets of graphene relative to each other, displays electronic properties not found in single graphene sheets. When rotated to the so-called “magic-angle”, approximately 1.05 degrees, twisted bilayer graphene exhibits correlated insulating, superconducting, and magnetic behavior that is tunable via electrostatic gating. Possible applications include superefficient information storage and processing, and rotation/twisting-controlled electronics.

     The exotic electronic states found in magic-angle twisted bilayer graphene are believed to arise from strong electron-electron interactions that occur when partially filling the system’s flat electronic bands. I will review a series of experiments that use a scanning tunneling microscope to investigate the strength of the electron-electron interactions, as well as the nature of the superconducting state.

Dillon Wong is an associate research scholar at Princeton, where he has led teams in building facilities for 2-D materials fabrication, and scanning tunneling microscopy (STM). 

     He earned a physics PhD at UC Berkeley, where among other projects he used STM to image, characterize, and manipulate charged defects in gate-tunable graphene field-effect transistors made from exfoliated and chemical-vapor-deposition-grown graphene.

     Dillon has published 22 peer-reviewed papers, including some in Nature and Science, and was awarded 1 US patent.

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Subatomic Species Transport through Atomically Thin Membranes

Prof Piran Kidambi, Chemical and Biomolecular Engineering, Vanderbilt University

Cost: Free, but registration is required. Register: Here
Registered attendees will receive an email with a link for the Zoom meeting

Thurs Dec 15 – Agenda (California Time)
11:30 AM – Check-in & Journal Club: Fundamental transport mechanisms of atomically thin membranes
12:00 PM – Announcements and Speaker Introduction
12:10 – 1:30 PM –  Seminar and Q&A

 
Membranes are thin materials used to selectively separate gases or liquids and are used on a range of scales from benchtop experiments to industrial processes. Challenges arise in separating materials with very similar sizes or chemical properties, particularly at the smallest scales. We review advances in using atomically thin two-dimensional materials such as graphene or hexagonal boron nitride for the separation of subatomic species, including electrons, hydrogen isotopes, and gases. We also explore the scope to scale up the sizes of these membranes and their potential use in applications relating to energy, microscopy, and electronics.

Read More: Subatomic species transport through atomically thin membranes

Piran Kidambi is an Assistant Professor at the Vanderbilt University Department of Chemical and Biomolecular Engineering (since 2017). After receiving his PhD from the University of Cambridge in 2014, he pursued postdoctoral research at MIT through the Lindemann Trust Fellowship.
     Kidambi’s research at Vanderbilt was recognized by the NSF (National Science Foundation) CAREER award (2020), American Chemical Society PRF Doctoral New Investigator (2018), Oak Ridge Associated Universities (ORAU) Ralph E. Powe Junior Faculty Enhancement Award (2018), and other awards. He has served on the US National Graphene Association Academic Council since 2019 and is a guest editor for MDPI (Multidisciplinary Digital Publishing Institute) Nanomaterials.

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SFBA Monthly Seminar – Nanotechnology + Synthetic Biology: Directing Evolution of Energy Materials

Merging Nanotechnology & Synthetic Biology toward Directed Evolution of Energy Materials by Elena A. Rozhkova, Argonne National Laborator

Date and time

Thu, October 27, 2022, 11:30 AM – 1:30 PM PDT

Registration: https://www.eventbrite.com/e/nanotechnology-synthetic-biology-directing-evolution-of-energy-materials-tickets-420103008407

About this event

The biological use of solar energy for synthesis of fuels from water and carbon dioxide inspires researchers and engineers in their efforts to replace exhaustible energy sources with renewable technologies.

Environmentally friendly schemes of photocatalytic energy conversion, known as artificial photosynthesis, along with inorganic materials, also use biological structures, such as molecules, enzymes, machineries of whole microorganisms capable of light-harvesting, water splitting, carbon dioxide and proton reduction.

In this talk, I will make an argument that merging nanotechnology, biotechnology and synthetic biology approaches allows for systemic manipulation at the nanoparticle-bio interface toward directed evolution of energy materials, novel environmentally friendly catalytic, “artificial life” systems and, ultimately, to circular economy.

For example, purple membranes isolated from Halobacteria cells or, more recently, obtained via cell-free synthetic biology approaches, were integrated with TiO2 nanoparticles to produce hydrogen or reduce carbon dioxide. These new functions are not typical of the host microorganism. On the other hand, interplay between plasmon resonance of photonic (Au, Ag) nanoparticles and natural mechanisms of the same light-sensitive membranes in engineered hollow hybrids, or “artificial cell”, resulted in ATP photosynthesis.

Dr. Rozhkova earned her Ph.D. in Chemistry at the Moscow State Institute for Fine Chemical Technology. She then worked in Japan as a postdoctoral fellow of Japan Society for Promotion of Science at Tohoku University. After moving to the US in 2003, she became a research staff member at the Chemistry Department of Princeton University, and later she moved to Chicago.

Since joining the Center for Nanoscale Materials at Argonne National Laboratory in 2007, Elena has focused on a general theme of nano-bio interfaces, one of the most exciting interdisciplinary research fields of our time. Success in this area can lead to the solution of emerging problems of civilization, for example, to provide alternative sustainable energy, to advance medical technologies in the diagnosis and treatment of incurable diseases

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SFBA Nanotechnology Seminar – Nanomaterial-Enabled Soft Electronics

Nanomaterial-Enabled Soft Electronics by Prof Yong Zhu, Andrew A. Adams Distinguished Professor North Carolina State University (NCSU)

Date and time

Thu, October 13, 2022, 11:30 AM – 1:30 PM PDT

Registration: https://www.eventbrite.com/e/sfba-nanotechnology-seminar-nanomaterial-enabled-soft-electronics-tickets-420099277247

About this event

Soft electronics takes a leap beyond Si-based rigid electronics. They are made of ultrathin, compliant, and stretchable materials, already with broad applications from personal health monitoring to prosthetics to human-machine interfaces. Metal nanowires, in particular silver nanowire (AgNWs), have emerged as a promising soft electronic material.

In this talk, I will discuss the recent advances in AgNW-based soft electronics and soft robotics. I will start with highly conductive and stretchable AgNW electrodes, followed with a variety of wearable sensors for monitoring of human physiology and motions (e.g., strain, pressure, temperature, hydration, ECG, and EMG). I will discuss their application in personal healthcare and sports.

Manufacturing is a critical enabling step for developing AgNW-based soft electronic devices. I will discuss our recent efforts in scalable and sustainable nanomanufacturing.

Soft robotics have recently received tremendous interests. I will briefly discuss the AgNW-based soft heater and bimorph actuator and their application in soft robotics. I highlight a recent strategy employing mechanical bistability to significantly increase the speed of the thermally actuated soft robots.

Yong Zhu is the Andrew Adams Distinguished Professor in the Department of Mechanical and Aerospace Engineering, with affiliate appointments in Biomedical Engineering and Materials Science and Engineering, at North Carolina State University.
He received his BS degree from the University of Science and Technology of China and MS and PhD degrees from Northwestern University. After completing his postdoctoral training at the University of Texas at Austin he joined NC State University in 2007 as an Assistant Professor.
His group conducts research at the intersection of mechanics of materials and micro/nano-technology, including nanomaterial-enabled flexible, stretchable and wearable electronics.
His work has been recognized with numerous awards including James R. Rice Medal from the Society of Engineering Science, Bessel Research Prize from the Alexander von Humboldt Foundation, ASME Gustus L. Larson Memorial Award, and Best Wearable Material/Component Development Award at IDTechEx Wearable USA

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6th Annual Company Origin Stories – Exploring Entrepreneurship

CEO/Founders discuss the technology and business aspects of building a successful company based on nanotechnology

Cost: Free, but registration is required. Register: Here
Registered attendees will receive an email with a link for the Zoom meeting

Thurs April 16 –
Agenda (California Time)

3:30 PM – Check-in
4:00 – Welcome
4:15 – Lightning presentations by company founders
5:25 – Panel discussion – Glenn Friedman, moderator 

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Advances in the method of X-ray footprinting and its application to the investigation of protein interactions and conformation

About this event

Speaker : Corie Ralson, PhD, Facility Director, Biological Nanostructures Facility at The Molecular Foundry and Guest Scientist in Molecular Biophysics & Integrated Bioimaging

The use of X-ray footprinting mass spectrometry (XFMS) to investigate structural features and conformational changes of macromolecules in the solution state has grown substantially in the past decade and has been successfully applied to systems ranging from single domain proteins to in vivo ribonucleoprotein assemblies. The method is highly complementary to the more widely used structural elucidation techniques for biological macromolecules such as x-ray diffraction, HDX, and cryo-electron microscopy. XFMS is an in situ hydroxyl radical (•OH) labeling method; X-ray irradiation dissociates solvent water to produce hydroxyl radicals, which covalently modify side chains which are solvent accessible. More specifically, residues which are in proximity to water molecules (either bulk or bound) are modified to a greater extent than residues which are not in proximity to water. Because liquid chromatography-mass spectrometry is then used to analyze the stable covalent modifications produced, the data provide a “water map” at the single residue level, which is then used to determine sample conformation. In this talk, I will describe the XFMS method, its advantages and disadvantages relative to other methods, recent technological advances in the method, and some recent exciting examples of structural information obtained on protein systems using the method.

Biological Macromolecules' structure; XFMS investigation image

Corie Ralston holds a B.S. in Physics from the University of California at Berkeley, and a Ph.D. in Biophysics from the University of California at Davis. She completed a post-doctoral fellowship at Brookhaven National Laboratory during which she helped develop the method of X-ray footprinting as a structural investigation technique for proteins and nucleic acids. In addition to being the Facility Director of of the Biological Nanostructures facility at the Molecular Foundry, she holds a guest appointment in the Molecular Biophysics and Integrated Bioimaging division at Berkeley Lab, and is actively developing the method of X-ray footprinting at the Advanced Light Source synchrotron.

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In-Memory Computing Hardware AcceleratorsCo-designing devices, circuits and architectures for explainable machine learning and pattern matching applications


 Dr. Cat Graves,Principal Research Scientist at Hewlett Packard Labs
Cost: Free, but registration is required. Register: Here
     Registered attendees will receive an email with a link for the Zoom meeting

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Wed April 20 – Agenda (California Time)
11:30 AM – Check-in
12:00 PM – Announcements and Speaker Introduction
12:10 – 1:30 PM –  Seminar and Q&A
 
           
Abstract: The dramatic rise of data-intensive workloads has revived special-purpose hardware for continuing gains in computing performance. Several promising special-purpose approaches take inspiration from the brain, which outperforms digital computing in power and performance in key tasks such as pattern matching. One brain-inspired architecture called “in-memory computing” significantly reduces data movement and has been shown to improve performance in CMOS ASIC demonstrations. However, these approaches still suffer from low power efficiency. Emerging non-volatile memories are a highly attractive alternative for low-power and high-performance in these architectures. Originally developed as digital (binary) non-volatile memories, many of these devices have a highly tunable analog resistances which are well-matched to in-memory computing architectures. I will review our team’s recent work using crossbar and content addressable memory (CAMs) circuits to accelerate important computing workloads in machine learning, complex pattern matching and optimization. I will also discuss our team’s recently invented analog CAM circuit targeted to accelerate interpretable machine learning models. Our work spans co-design from circuits and devices to algorithms and architectures to enable low power, high-throughput computation for important computing workloads.

                        
 Dr. Cat Graves is a Principal Research Scientist at Hewlett Packard Labs developing analog and neuromorphic computational accelerators which leverage emerging devices such as resistive RAM (RRAM) for high energy efficiency and throughput compared to general-purpose digital approaches in data-centric domains. Some of her previous work utilized multilevel analog resistive RAM devices to natively perform matrix multiplication within crossbars, accelerating a core computation of wide-ranging applications from neural networks to signal processing. Currently, she leads a research team exploring uses of RRAM-based and analog associative memory circuits for accelerating diverse computational models, including tree-based ML models and finite automata processing for network security and genomics applications. Cat was awarded Silicon Valley Intellectual Property Law Association (SVIPLA) Inventor of the Year in 2021 for her co-invention of analog content addressable memories. Cat received her Ph.D. in Applied Physics from Stanford University studying ultrafast magnetism for future magnetic memory technologies while an NSF Graduate Research Fellow. She has published over 35 peer-reviewed papers, three book chapters, and has been awarded 14 US patents.

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Affordable Nano Solutions for Covid Treatment

Prof. Jayakumar Rajadas, Director of the Regenerative Biomaterials Lab at Stanford

Cost: Free, but registration is required. Register: Here
     Registered attendees will receive an email with a link for the Zoom meeting

Thurs Feb 24 – Agenda (California Time)
11:30 AM – Check-in & Nano Journal Club:
     Review of Oxygenation with Nanobubbles: Possible Treatment for Hypoxic COVID-19 Patients
     Come prepared to discuss!
12:00 PM – Announcements and Speaker Introduction
12:10 – 1:30 PM –  Seminar and Q&A
 
From the early days of this pandemic until now, the reality of still no medication being readily available which can guarantee therapeutic and potentially lifesaving efficacy in all of the stages and diverse pathological manifestations of this novel coronavirus has inflicted drastic consequences upon the world. We have developed two drugs in vitro showing great promise for the successful treatment of acute, moderate and severe COVID-19 as well as persisting immune-mediated consequences with respect to advanced pharmacokinetics. The objectives of our approach and the underlying mechanisms are manifold, strategically aimed at preventing viral replication, concomitantly reducing the inflammation caused by this devastating and highly infectious disease and improving the antibody response to vaccines. Additionally, we also developed a partially repurposed nano technology to improve oxygen saturation in acute respiratory distress syndrome (ARDS) as a result of COVID-19.

Professor Jayakumar Rajadas is the author of 237 peer reviewed publications, has developed 82 patents, discovered the therapeutic effects of Disulfiram and Azlocillin for the treatment of persistent Lyme disease and is currently researching and developing solutions for COVID-19. Other projects of his focus use biophysical approaches such as AFM, fluorescence, and NMR to work on the molecular mechanisms of protein-initiated neurodegenerative disorders involved in the pathology of Alzheimer’s and Lyme disease. Furthermore, he is also known for his development of a unique and successful implantable biomaterials commercially available all over the world . He is the founding director of the ADDReB Laboratory of Cardiovascular Institute at Stanford School of Medicine. He is a trained chemist with a Ph.D. in Biophysical Chemistry from the Indian Institute of Technology, Chennai , India.

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17th Annual Fall Symposium – Nanotechnology to Combat COVID – Prevention, Detection and Therapy

Agenda

9:10 am – 10:00 amBiomimetic Nanoparticles for the Treatment of Infectious Diseases, Liangfang Zhang, PhD
10: 10 am – 11:00 amAn overview of AI-enabled multi-scale simulations for targeting SARS-CoV-2; Dr. Arvind Ramanathan
11: 10 am – 12:00 pm  Corona Phase Molecular Recognition of SARS-CoV-2 and Associated Biomarkers; Professor Michael Strano
1:00 pm – 1:50 pmKey to successful development of mRNA manufacturing and lipids based RNA delivery; Erica Weiskircher-Hildebrandt
2:00 pm – 2:50 pmBiology-Powered Transistors: A merger of bio and nanotechnology; Francie Barron, PhD
3:00 pm – 3:50 pmNanotraps for the containment and clearance of SARS-CoV-2; Dr. Jun Huang

Registration : Free

https://www.eventbrite.com/e/ieee-sfba-nanotechnology-fall-symposium-tickets-207476125677

The worldwide outbreak of COVID-19 in now well into its second year.

Nanotechnology is in the forefront of combating COVID.Lipid nanoparticles are essential components of mRNA vaccines. Nanomaterials are enabling improved detection techniques, and novel therapies.

At this symposium academic and industrial researchers will present pathbreaking nanotechnology-based work focused on addressing the threat of COVID-19.

Topics will include nanotechnology to manufacture COVID mRNA vaccines, create novel nanomaterial decoy therapies, enhance molecular detection of viruses, and simulate nanostructured COVID proteins. The event will provide opportunities for attendees to network and actively engage with the speakers.

Title-Abstract-Biography-and-plan-for-COVID-nano-SymposiumDownload

                 

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