SF Bay Area Nanotechnology Council

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Archive for the ‘Past Events’ Category

[UPDATE – NOW VIRTUAL!] June 9th, 2020: Quantitative Plasmonic Sensing with Single-Chip Inkjet Dispense Surface Enhanced Raman Spectroscopy (ID-SERS)

Saturday, May 23rd, 2020

SFBA Nanotechnology Council is pleased to announce our first online seminar – and it’s free!

We’d also like to take a moment to appreciate our community – the Council has earned the 2019 IEEE Outstanding Chapter Santa Clara Valley, as well as the Nanotechnology Council Outstanding Chapter title worldwide. Please see the Awards page for details.  Thank you all for your support!

Now onto the talk!

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Quantitative Plasmonic Sensing with Single-Chip Inkjet Dispense Surface Enhanced Raman Spectroscopy (ID-SERS)

Dr. Fausto D’Apuzzo, Optical Scientist, HP Labs

Tues June 9

Noon-1:30PM Pacific Time, Virtual Meeting via Zoom

Register Here ! (Note: FREE to attend, but limited to 100 attendees! Registration ends at 10AM Pacific Time June 2nd.)

drfaustoplasmonicsensing

ABSTRACT

In this talk, I will present our Laboratory work on highly-quantitative plasmonic sensing based on Surface Enhanced Raman Spectroscopy (SERS). I will first describe our nano-imprinted SERS substrate architecture and performance. Then I will show how inkjet dispensing can be used in conjunction with SERS to encode each sensor with a calibration pattern of microdroplets (~30 pico-liters), with the aim of locally calibrating sensor performance. This way, we demonstrate that Measurement Uncertainty of the SERS signal can be reduced below 2%, which to our knowledge, is a new record for plasmonic sensing platform. Furthermore, the use of inkjet dispensing in combination with Raman mapping improves assay throughput (100-fold) and reduces sample volume consumption (105-fold) in an automated and reproducible fashion. Since this approach overcomes important practical hurdles, we believe that this work reignites interest in the potential commercialization of plasmonic-based chemical sensors.

Recent paper for reference:  A Generalizable Single-Chip Calibration Method for Highly Quantitative SERS via Inkjet Dispense.

 

SPEAKER BIOGRAPHY

drfaustoheadshot

Dr. Fausto D’Apuzzo is Optical Scientist at HP Labs, working on the Life Science team. His research interests are in optics systems, plasmonics and metamaterials for bio-sensing, with a focus on Surface Enhanced Raman Spectroscopy (SERS). He started investigating plasmonic systems since his master (2011) and PhD at the University of Rome “Sapienza”, before holding a postdoc position at L. Berkeley National Labs (LBNL) studying 2D plasmonic systems with Synchrotron Nano-Spectroscopy. He interned as an Optical Engineer at ACAMP (Alberta, Canada) before joining HP Labs (2018-present) where he is developing plasmonic sensing systems for quantitative chemical analysis.

February 5th, 2020: Light-based Rapid 3D Bioprinting for Precision Tissue Engineering and Regenerative Medicine

Wednesday, January 29th, 2020

For future events we are seeking suggestions for speakers and venues. We also welcome volunteers – please contact Vasuda Bhatia

3D Bioprinting and Nanoengineering Research at UC San Diego

Dr. Shaochen Chen – Chair of NanoEngineering and Professor of Bioengineering at UC San Diego

Register: Here

Wed Feb 5
11:30am: Networking & Pizza
Noon-1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale

In this talk, I will present our laboratory’s recent research efforts in rapid 3D bioprinting to create 3D tissue constructs using a variety of biomaterials and cells. These 3D biomaterials are functionalized with precise control of micro-architecture, mechanical (e.g. stiffness), chemical, and biological properties. Such functional biomaterials allow us to investigate cell-microenvironment interactions at nano- and micro-scales in response to integrated physical and chemical stimuli. From these fundamental studies we have been creating both in vitro and in vivo precision tissues for tissue regeneration, disease modeling, and drug discovery. To vascularize these engineered tissues, we have also developed a prevascularization technique by using the rapid 3D bioprinting method. Multiple cell types mimicking the native vascular cell composition were encapsulated directly into hydrogels with precisely controlled distribution.
As the Chair of the NanoEngineering Department, I will also discuss several cutting-edge research areas by our outstanding faculty.

For more information visit http://nanoengineering.ucsd.edu/

 

 

     Dr. Shaochen Chen is a Professor and Chair in the NanoEngineering Department and Professor in the Bioengineering Department at the University of California, San Diego (UCSD). He is the founding co-director of the Biomaterials and Tissue Engineering Center at UCSD. Before joining UCSD, Dr. Chen had been a Professor and a Henderson Centennial Endowed Faculty Fellow in Engineering at the University of Texas at Austin from 2001 to 2010. Between 2008 and 2010, he served as the Program Director for the Nanomanufacturing Program of the National Science Foundation (NSF). Dr. Chen’s primary research interests include: 3D printing and bioprinting, biomaterials and nanomaterials, stem cell and regenerative medicine, tissue engineering. He has published over 140 papers in top journals. Among his numerous awards, Dr. Chen received the NSF CAREER award, ONR Young Investigator award, and NIH Edward Nagy New Investigator Award. He also received the Milton C. Shaw Manufacturing Research Medal from ASME for his seminal work in 3D printing, bioprinting, and nanomanufacturing. Dr. Chen is a Fellow of AAAS, AIMBE, ASME, SPIE, and ISNM.

 

Dec 10th, 2019: Championing Science – Communicating Your Ideas to Decision Makers

Monday, November 11th, 2019

Championing Science – Communicating Your Ideas to Decision Makers

Dr. Roger Aines, Chief Scientist of the Energy Program at Lawrence Livermore National Laboratory
Amy Aines, Founder and CEO of Damianakes Communications

Register: Here

Tues Dec 10
11:30am: Networking & Pizza
Noon-1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale

book cover

Innovation and breakthrough approaches that benefit humanity start with an idea. Your ability to advance your ideas depends in part on whether you can convince decision makers and cross-disciplinary team members to support the work. Yet communicating to non-expert funders, managers or colleagues is often where technologists fail.
Amy and Roger Aines reveal why, and what can be done to change the outcome. In this talk, they will share insights and strategies from their research for writing Championing Science – Communicating Your Ideas to Decision Makers. They will explain how engineers can leverage skills in research, observation, experimentation, and the influence process, to make sure their ideas are heard.

For more information visit www.championingscience.com


   For the past 15 years, Dr. Roger Aines has been building coalitions around the globe to develop climate and energy technologies for a more livable planet. He is the Chief Scientist of the Energy Program at Lawrence Livermore National Laboratory where he leads a major Carbon Initiative to understand, develop, and implement technologies for the removal and reuse of carbon dioxide from the atmosphere. Since he joined the lab in 1984, Roger’s work has spanned nuclear waste disposal, environmental remediation, applying stochastic methods to inversion and data fusion, managing carbon emissions and sequestration monitoring and verification methods.   Roger graduated from Carleton College with his degree in chemistry and received his PhD in geochemistry from Cal Tech. He holds 24 patents and has authored more than 100 publications.
Roger is a sought after speaker who has delivered and endured countless scientific presentations. His guidance has enabled hundreds of fellow scientists to secure millions in research funding and gain broad support for their ideas. With Amy Aines he authored Championing Science – Communicating Your Ideas to Decision Makers, a comprehensive book to teach scientists essential communication, influence and relationship-building skills to advance their work.

     Amy Aines is founder and CEO of Damianakes Communications and co-author of Championing Science – Communicating Your Ideas to Decision Makers. A messaging strategist, speaker coach and reputation builder, Amy believes “Words Matter.” She honed her skills directing corporate and public policy communications for global telecommunications, technology and mobile phone companies for the first 20 years of her career.
Since she launched her consulting firm in 1999, Amy has helped hundreds of technical experts get audiences to listen and take action; building support for new ideas. Her work has contributed to the success of a multitude of products and programs at startups and global giants in the biotech, healthcare, telecommunications and technology sectors. These days she lectures, coaches and leads workshops to help grad students, postdocs and STEM career professionals learn to communicate with impact.

 

 

Oct 15th, 2019: Industrial Applications of EBSD (Electron backscatter diffraction) and ECCI (Electron channeling contrast imaging)

Monday, October 14th, 2019

Industrial Applications of EBSD (Electron backscatter diffraction) and ECCI (Electron channeling contrast imaging)

Dr. Jingyi Zhang, EBSD Scientist at EAG Laboratories

Register: Here

Tues Oct 15
11:30am: Networking & Pizza
Noon-1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale


Electron backscattered diffraction (EBSD) is a rapidly developing technique in the material characterization field. The technique gives microstructure information in the meso-scale which includes grain size, crystal orientation, grain boundaries, dislocations, and phase identification that all contribute to the device performance and reliability. Typical components that benefit from the EBSD analysis includes bond pads, solder joints, thin wires and capacitors. Electron channeling contrast imaging (ECCI) is a derivative technique from EBSD that gives quantitively defect density measurement of single crystals. The scanning area is on the order of several tens to hundreds of micrometers making this measurement ideal for high quality crystals (defect density 108/cm2 to 105/cm2).

       
Dr. Jingyi Zhang 
is an EBSD Scientist at EAG Laboratories, which she joined in 2018 after completing a doctorate in Mechanical Engineering at Washington State University. Her thesis was on mechanical and microstructural characterization of friction welds of dissimilar aluminum alloys. Previously she had earned an MS in Materials Science and Engineering at Iowa State University, and a BS in Materials Science at Tianjin University.

Sept 19th, 2019: 4th Annual “Origin Stories” – Exploring Entrepreneurship

Monday, October 14th, 2019

4th Annual “Origin Stories” – Exploring Entrepreneurship
CEO/Founders discuss the technology and business aspects of building a successful company based on nanotechnology
Register: Here

Thurs Sept 19 – 5:30 PM to 9:40 PM
Early Registration: $11 to $17 – Light dinner included

Location: SEMI Global Headquarters
673 South Milpitas Boulevard, Milpitas

Presenting Companies include:

Gleb Yushin, Co-Founder and CTO, Sila Nanotechnology – silicon-dominant anode products that drop into existing battery manufacturing processes and deliver significantly higher energy density

Deepak Dugar, President and Founder, Visolis Biotechnology – displacing petroleum-derived material with engineered, bio-based alternatives


Peter Boyd
, President and Founder, Nano Hydrophobics – self-assembling non-stick coatings that reduce fouling in industrial equipment and improve energy efficiency


Ram Prasad Gandhiraman
, Founder and CEO, Space Foundry – A NASA spin off developing plasma jet based direct-write printing technology to enable next generation of printed electronics products and sensors

August 20th, 2019: Recent Progress in Carbon Nanotube Logic Technology

Monday, July 8th, 2019

Recent Progress in Carbon Nanotube Logic Technology

Rebecca Park, PhD Candidate, Stanford University

Registration: HERE

Please register on Eventbrite before 8 PM on August 19

Tues August 20 – 11:30am: Networking & Pizza; Noon-1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale

 ABSTRACT:

 Tremendous effort has been made in exploring novel channel materials to complement silicon for future nanometer-scaled transistors. Among the viable options, carbon nanotubes (CNTs) are a potential candidate due to their high mobility and injection velocity despite their ultra-thin body thickness of 1 to 2 nm. Although carbon nanotube field-effect transistors (CNFETs) enable high-performance and energy-efficient digital systems, there are challenges that have yet to be solved.

carbon nanotube logic technology

   In this talk, I will review the significant progress that has been made in recent years which has brought us closer to realizing the full benefits that the CNT technology promises.

 

       

BIOGRAPHY:

 Rebecca Park received her B.S. from Cornell University in 2013 and is currently a Ph.D. candidate in Electrical Engineering at Stanford University, under the supervision of Professor H.-S. Philip Wong, co-advised by Professor Subhasish Mitra.

   Her current research interest is in the development of high-performance and energy-efficient nanoelectronics, in which she has focused on carbon nanotube-based FETs.

   Rebecca is a recipient of the Intel/SRCEA Masters Scholarship (2014-2016) and the Intel/SRCEA PhD Fellowship (2016-2019). Her internship experience includes working in the Science & Solutions team at IBM (2017 summer) and in the Flat Panel Displays team at Apple (2018 summer).

 

July 9th, 2019: Industry Assessment of Emerging 3D Memory Technology Landscape

Monday, July 8th, 2019

Industry Assessment of Emerging 3D Memory Technology Landscape
Prashant Majhi, Principal Engineer, Intel Corporation
Register: Here 

Tues July 9
4:15: Networking, Drinks
4:45: Seminar
Cost: Free
Location: Allen Center for Integrated Systems (CIS), Stanford University


This talk will highlight the primary challenges and opportunities in emerging memory technologies to replace existing mainstream (SRAM/DRAM/NAND) memory technology in the memory hierarchy.
In particular, an industry perspective of the various memory types (filamentary, interfacial, bulk) proposed for cross-point based 3D memory technologies will be presented and discussed.

           

Prashant Majhi is a Principal Engineer at Intel, involved in R&D of novel devices/materials/process technologies for the continued scaling of advanced CMOS and memory technologies.
He has driven many logic and memory technology development projects/programs through his 14 years at Intel (including his Intel assignment as Chief Technologist at SEMATECH) and 4 years at Philips Semiconductors (now NXP). He has (co)authored 250+ peer reviewed articles, holds 100+ patents, given 75+ invited talks, and co-advised 15+ PhD students from various universities.
He holds a PhD from Arizona State University and Bachelor of Technology from IIT Madras.

June 18th, 2019: Bioinspired Materials Development for Next-Gen Batteries

Monday, June 3rd, 2019

Bioinspired Materials Development for Next-Gen Batteries
Professor Dahyun Oh, Department of Materials Engineering, San José State University
Register: Here

Tues June 18 – 11:30am: Networking & Pizza; Noon-1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale

The demand for storing electricity is growing more rapidly than ever with the increased use of the mobile Internet of Things (IoT) devices and electric vehicles. Thus, safe and cost-effective batteries with high energy density are drawing significant interest in the field.
In this presentation, a sustainable method to develop battery electrode materials will be presented. By using biomaterials, a rod shape virus (M13 bacteriophage) or a cylindrical shape microbe (Escherichia coli, called as E. coli), the electrodes for lithium-based batteries were fabricated in an environmentally friendly way. Through the interaction between precursor ions and protein assemblies of virus molecules, a wide range of transition metal oxides nanowires has been synthesized at room temperature under aqueous synthesis conditions. Besides, microbes were used as a pore template to create an interconnected pore structure by using lengthy E. coli. These biotemplates are about one million times cheaper and are easier to remove than synthetic porogens such as silica or polystyrene beads.
The battery electrodes made in a bioinspired method have presented significant performance improvements in Li-ion batteries as well as Li-oxygen batteries. We believe that biomaterials driven material research can provide an efficient and environmentally benign way to build a high-performance device, in particular, next-generation energy storage system.
Read More: https://sites.google.com/sjsu.edu/energymaterialslab

               

Dahyun Oh is an assistant professor in the department of Materials Engineering at San José State University (SJSU). Her current research focuses on the development of next-generation energy storage devices including Li-ion, metal-oxygen, and solid-state batteries.
Prior to joining SJSU, Dahyun worked as a research scientist at IBM Almaden Research Center after her post-doctoral training at Massachusetts Institute of Technology (MIT). She received her Ph.D. in materials science and engineering (MSE) at MIT in 2014, after obtaining her B.S. degree in MSE at Seoul National University in 2008.

May 2019 (2 events!): 11th – Additively Manufactured Biomimetic Polymers (+SJSU showcase); 23rd – Nanoscience at The Molecular Foundry

Monday, June 3rd, 2019

The Nanotech Council is sponsoring two events in May!

Sat May 11: San Jose State University Technical Showcase
      Time: 10 am to 5pm; Cost: Free

Keynote Lecture: Additively Manufactured Biomimetic Polymers

Dr. Ozgur Keles, Chemical and Materials Engineering Department, San Jose State University
Register: Here
      
Additive manufacturing (AM) is increasingly used for biomedical, automotive, space, defense, transportation, and consumer product applications. Fused deposition modeling (FDM) is most common AM technique that can produce polymer, composite, metal, and ceramic materials. FDMed materials, however, contain pores between the deposited beads. Moreover, we can intentionally add pores to any kind of design to decrease weight or to add functionality, such as heat or mass transport. These pores reduce mechanical properties and introduce variations in mechanical properties. Despite the increasing use of FDM, the effect of porosity on the mechanical behavior of FDMed materials are unclear. Our recent work showed that intentional vibrations or biomimetic deposition paths can be used to double mechanical reliability of FDMed polymers and polymer matrix composites. In this talk, I will discuss the origins of the mechanical reliability in porous polymers and deviations from Weibull statistics. In addition, I will detail how we can improve strength and toughness of porous polymers. Biomimetic meso-structure and vibration-assisted FDM approaches will be described to improve reliability in FDMed materials.
Read More: Mechanical reliability of fused deposition modeled polymers and composites
 
          

Dr. Ozgur Keles is an Assistant Professor of Chemical and Materials Engineering at San Jose State University. Dr. Keles received his B.S. and M.S. degrees from the Department of Metallurgical and Materials Engineering at Middle East Technical University, and his Ph.D. in Materials Engineering from Purdue University in 2013. Following, he joined Illinois Institute of Technology as a research associate and lecturer, where he investigated the reliability of porous glasses and porous pharmaceutical compacts. His work on the deviations from Weibull statistics in porous ceramics was highlighted at the Gordon Research Conferences and awarded by the American Ceramic Society. He is also a photographer and digital artist who uses aesthetically appealing images and computer visualizations to improve student engagement, to aid student learning, and to foster creativity in engineering students. His work at the intersection of engineering, education, and arts was also highlighted in the The Member Journal of TMS. His current research interests are stochastic fracture of additively manufactured materials and ceramics, mechanical behavior of quantum dot reinforced hierarchical composites, and virtual reality applications in engineering education.


Thurs May 23: Nanoscience at The Molecular Foundry
      Time: 9 am to 5pm; Early Registration: $25 to $75

Register: Here
     Supported by the Department of Energy Office of Basic Energy Sciences (BES) through their Nanoscale Science Research Center (NSRC) program, the Molecular Foundry is a National User Facility for nanoscale science serving hundreds of academic, industrial and government scientists around the world each year.
The IEEE Nanotechnology Council is hosting several staff and users at an event in the South Bay (Milpitas) to speak and network with engineers and scientists in our area.

April 2nd, 2019: X-ray Fourier Holography Takes Off

Tuesday, March 5th, 2019

X-ray Fourier Holography Takes Off
Dr. Taisia Gorkhovera, Stanford PULSE Institute, SLAC National Laboratory
Register: Here

Tues April 2 – 11:30am: Networking & Pizza; Noon1PM: Seminar
Cost: $4 to $6
Location: EAG Laboratories – 810 Kifer Road, Sunnyvale

     Most of our high-resolution imaging methods have to compromise between temporal or spatial resolutions, similar to a pinhole camera. If the entrance pinhole is very small, the resulting image is crisp, but requires a long exposure and thus, is less suitable to capture moving objects. One can increase the pinhole diameter and thus, increase the temporal resolution, but this comes at a cost of the sharpness of the image.
     Of course, our microscopic tools have greatly evolved over time, but this original problem still limits our capabilities to observe fast processes at the nanoscale. Examples include chemical and catalytic reactions, nucleation dynamics and growth of nanoparticles, and other phenomena which are short-lived. One idea to overcome this obstacle is to use an illumination source, which is capable of producing intense short wavelengths radiation such as X-rays within very short exposure times.
     X-ray Free Electron Lasers (FELs), such as the LCLS at SLAC, are capable of producing very bright bursts of coherent X-rays within a few femtoseconds. This large-scale technique offers unique opportunities to visualise fast processes via coherent X-ray diffractive imaging. Coherent X-ray diffractive imaging, however, suffers from intrinsic loss of phase, and therefore structure recovery is often complicated and not always uniquely-defined. Here, we introduce the method of in-flight holography, where we use nanoclusters as reference X-ray scatterers in order to encode relative phase information into diffraction patterns of a virus. The references (small spherical nanoparticles) and the bio samples are injected into random positions within the FEL focus. Using in-flight holography, we were able to reconstruct the unknown relative orientation of the reference and the sample. In a second step, we used Fourier X-ray holography to reconstruct the shape of the specimen.
In my talk I will report on several studies exploring the in-flight holography principle. Moreover, I will discuss future capabilities and applications for X-ray FELs and the possibility of future table-top experiments.
 

     

After her graduate studies at the Technical University of Berlin in Germany, Dr. Taisia Gorkhover joined SLAC in 2014 as a Peter Paul Ewald fellow from the Volkswagen Foundation. Gorkhover has been a spokesperson for three LCLS experiments and a collaborator in more than 15, and she co-authored or led more than 30 publications in high-impact journals. She has received the 2018 LCLS Young Investigator Award, granted to early-career scientists in recognition of exceptional research using the Linac Coherent Light Source (LCLS) X-ray free-electron laser at the Department of Energy’s SLAC National Accelerator Laboratory. Dr. Gorkhover was one of four SLAC scientists to win the Department of Energy’s Early Career Research Program award in March 2018. In 2016, she was the first female scientist to receive the Panofsky Fellowship, named after the laboratory’s founder and first director.

     “I’m interested in developing new imaging methods that are becoming possible because of XFELs,” says Gorkhover. “My main motivation is to see how we can use this exciting technology to learn about the behavior of complex nanoscale systems.”