Upcoming Talks

(Last Updated On: September 10, 2021)

 


Archive of Previous Talks


Upcoming Talks




27th CRSI National Symposium in Chemistry (NSC-28), Hybrid Meeting, IISER Kolkata, 26-30 September 2021.

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


2nd KAIST Emerging Materials e-Symposium, Daejeon, South Korea, 4-8 October 2021.

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Thursday October 7 2021, 6:10 – 7:00 PM (PST), International Conference on Precision Nanomedicine in Theranostics & The 2021 Annual Meeting of Taiwan Nanomedicine Society (TNS), Tainan, Taiwan, 8-9 October 2021.

Nanotechnology Approaches to Biology and Medicine

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA


10th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-10), Online, Chinese Vacuum Society (CVS), Shanghai, China, 11-14 October 2021.

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA

Keywords: contacts, interfaces, materials, electronic properties, spin

It has become possible to fabricate atomically precise structures and interfaces. The key to leveraging this capability is to understand the interfacial properties, such as transport, so as to enable optimization in a targeted and reproducible way.1 Ultimately, we would like to be able to predict the structures formed and their properties. I describe a series of advances in atomic-resolution spectroscopic imaging that have moved us closer to this goal. We are able to measure molecular orbitals across interfaces and the conductance of buried contacts.2,3 We are also able to measure buried interactions in molecular layers.4

This latter property has enabled us to measure the atomically resolved structures of biomolecules without averaging.5,6 In all of the above experiments, we exploit sparsity to record and to analyze information-rich data sets. With statistically significant data sets, we are able to understand heterogeneity in structure and function of complex assemblies.

[1] Han P, Akagi K, Canova FF, Shimizu R, Oguchi H, Shiraki S, Weiss PS, Asao N, Hitosugi T. 2015. Self-assembly strategy for fabricating connected graphene nanoribbons. ACS Nano. 9:12035-12044.

[2] Moore AM, Mantooth BA, Donhauser ZJ, Yao Y, Tour JM, Weiss, PS. 2007. Real-time measurements of conductance switching and motion of oligo(phenylene-ethynylene)s. Journal of the American Chemical Society 129:10352-10353.

[3] Moore AM, Yeganeh S, Yao Y, Claridge SA, Tour JM, Ratner MA, Weiss PS. 2010. Polarizabilities of adsorbed and assembled molecules: Measuring the conductance through buried contacts. ACS Nano 4:7630-7636 (2010).

[4] Thomas JC, Goronzy DP, Dragomiretskiy K, Zosso D, Gilles J, Osher SJ, Bertozzi AL, Weiss PS. 2016. Mapping buried hydrogen-bonding networks. ACS Nano. 10:5446-5451.



Saturday 16 October 2021, 9:30 AM Beijing Time/Friday 15 October 2021, 6:30 PM Pacific Time,  International Forum on Microscopy (IFM2021), Guilin, China, Saturday 16 – Sunday 17 October 2021

Imaging Atomically Precise Chemical, Physical, Electronic, and Spin Interfaces

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA

It has become possible to fabricate atomically precise structures and interfaces. The key to leveraging this capability is to understand the interfacial properties, such as transport, so as to enable optimization in a targeted and reproducible way.1 Ultimately, we would like to be able to predict the structures formed and their properties. I describe a series of advances in atomic-resolution spectroscopic imaging that have moved us closer to this goal. We are able to measure molecular orbitals across interfaces and the conductance of buried contacts.2,3 We are also able to measure buried interactions in molecular layers.4

This latter property has enabled us to measure the atomically resolved structures of biomolecules without averaging.5,6 In all of the above experiments, we exploit sparsity to record and to analyze information-rich data sets. With statistically significant data sets, we are able to understand heterogeneity in structure and function of complex assemblies.

[1] Han P, Akagi K, Canova FF, Shimizu R, Oguchi H, Shiraki S, Weiss PS, Asao N, Hitosugi T. 2015. Self-assembly strategy for fabricating connected graphene nanoribbons. ACS Nano. 9:12035-12044.

[2] Moore AM, Mantooth BA, Donhauser ZJ, Yao Y, Tour JM, Weiss, PS. 2007. Real-time measurements of conductance switching and motion of oligo(phenylene-ethynylene)s. Journal of the American Chemical Society 129:10352-10353.

[3] Moore AM, Yeganeh S, Yao Y, Claridge SA, Tour JM, Ratner MA, Weiss PS. 2010. Polarizabilities of adsorbed and assembled molecules: Measuring the conductance through buried contacts. ACS Nano 4:7630-7636 (2010).

[4] Thomas JC, Goronzy DP, Dragomiretskiy K, Zosso D, Gilles J, Osher SJ, Bertozzi AL, Weiss PS. 2016. Mapping buried hydrogen-bonding networks. ACS Nano. 10:5446-5451.

[5] Claridge SA, Thomas JC, Silverman MA, Schwartz JJ, Yang Y, Wang C, and Weiss PS. 2013. Differentiating amino acid residues and side chain orientations in peptides using scanning tunneling microscopy. Journal of the American Chemical Society. 135:18528-18535.

[6] Yugay D, Goronzy DP, Kawakami LM, Claridge SA, Song TB, Yan Z, Xie YH, Gilles J, Yang Y, Weiss PS. 2016. Copper ion binding site in β-amyloid peptide. Nano Letters. 16:6282-6289.


ChinaNANO 2021, The 9th International Conference on Nanoscience and Technology, China, 26-28 October 2021.

Nanotechnology Approaches to Biology and Medicine

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Biology functions at the nanoscale. Thus, there are special opportunities not only to make biological measurements using nanotechnology, but also to interact directly in order to influence biological outcomes. I describe how we fabricate and use nanostructures to advance high-throughput gene editing for cellular therapies targeting genetic diseases and cancer immunotherapy. We also use microfluidics and functionalized nanostructured features in the selective capture, probing, and release of single circulating tumor cells in liquid biopsies in order to diagnose cancers and to assess the efficacy of treatments. We exploit supramolecular assembly, acoustofluidics, specific surface functionalization, and plasmonics to enable these processes.


Wednesday 3 November 2021, Departments of Chemistry & Physics, Iowa State University, Ames, Iowa.

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Two seemingly conflicting trends in nanoscience and nanotechnology are our increasing ability to reach the limits of atomically precise structures and our growing understanding of the importance of heterogeneity in the structure and function of molecules and nanoscale assemblies. By having developed the “eyes” to see, to record spectra, and to measure function at the nanoscale, we have been able to fabricate structures with precision as well as to understand the important and intrinsic heterogeneity of function found in these assemblies.

I will discuss the challenges, opportunities, and consequences of pursuing strategies to address both precision on the one hand and heterogeneity on the other. In our laboratories, we are taking the first steps to exploit precise assembly to optimize properties such as perfect electronic contacts in materials. We are also developing the means to make tens to hundreds of thousands of independent multimodal nanoscale measurements in order to understand the variations in structure and function that have previously been inaccessible in both synthetic and biological systems.


Monday 15 November 2021, 5:00 PM (Singapore Time), A*STAR Editors’ Colloquium Online, Singapore.

Publishing and ACS Nano

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA


Monday 6 December 2021, 11:00 AM – 12:00 PM (Japan Time), Sunday 5 December 2021, 7:00 – 8:00 PM (PST), RIES International Symposium, Online, Sapporo, Hokkaido, Japan, 6 – 7 December 2021.

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts and Interfaces

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA

Two seemingly conflicting trends in nanoscience and nanotechnology are our increasing ability to reach the limits of atomically precise structures and our growing understanding of the importance of heterogeneity in the structure and function of molecules and nanoscale assemblies. By having developed the “eyes” to see, to record spectra, and to measure function at the nanoscale, we have been able to fabricate structures with precision as well as to understand the important and intrinsic heterogeneity of function found in these assemblies. The physical, electronic, mechanical, and chemical connections that materials make to one another and to the outside world are critical. Just as the properties and applications of conventional semiconductor devices depend on these contacts, so do nanomaterials, many nanoscale measurements, and devices of the future. We discuss the important roles that these contacts can play in preserving key transport and other properties. Initial nanoscale connections and measurements guide the path to future opportunities and challenges ahead. Band alignment and minimally disruptive connections are both targets and can be characterized in both experiment and theory. Chiral assemblies can control the spin properties and thus transport at interfaces. I discuss our initial forays into these areas in a number of materials systems.


Pacifichem 2021, Honolulu, Hawaii, 16 – 21 December 2021.

Nanotechnology Approaches to Biology and Medicine

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Biology functions at the nanoscale. Thus, there are special opportunities not only to make biological measurements using nanotechnology, but also to interact directly in order to influence biological outcomes. Nanoscience and nanotechnology developed from chemistry, physics, biology, engineering, medicine, toxicology, and a host of other fields. Along the way, we taught each other our problems, challenges, and approaches. The interdisciplinary communication skills that were developed and are now part of our training remain unique to the field. As a result, nanoscience contributes to a wide range of other fields, such as neuroscience and the microbiome.


Pacifichem 2021, Honolulu, Hawaii, 16 – 21 December 2021.

Adding the Chemical Dimension to Lithography: Enabling Capture and Sensing of Signaling Molecules, Exosomes, and Cells

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

By controlling the exposed chemical functionality of materials from the submolecular through the centimeter scales, we have enabled new capabilities in biology, medicine, and other areas. I will discuss current and upcoming advances and will pose the challenges that lie ahead in creating, developing, and applying new tools using these capabilities. These advances include using biomolecular recognition in sensor arrays to probe dynamic chemistry in the brain and microbiome systems. We also use these and other nanofabrication strategies to develop new tools to catch and to release exosomes and circulating tumor cells for medical diagnostics.


Symposium on Plasmonic Nanomaterials, The Minerals, Metals & Materials Society (TMS 2022), Anaheim, California, February 27–March 3, 2022

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Thursday 17 March 2022, Arizona State University, School of Molecular Science, Eyring Lectures, Department Lecture, Tempe, AZ

Atomically Precise Chemical, Physical, Electronic, and Spin Contacts

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Two seemingly conflicting trends in nanoscience and nanotechnology are our increasing ability to reach the limits of atomically precise structures and our growing understanding of the importance of heterogeneity in the structure and function of molecules and nanoscale assemblies. By having developed the “eyes” to see, to record spectra, and to measure function at the nanoscale, we have been able to fabricate structures with precision as well as to understand the important and
intrinsic heterogeneity of function found in these assemblies. The physical, electronic, mechanical, and chemical connections that
materials make to one another and to the outside world are critical. Just as the properties and applications of conventional semiconductor devices depend on these contacts, so do nanomaterials, many nanoscale measurements, and devices of the future. We discuss the important roles that these contacts can play in preserving key transport and other properties. Initial nanoscale connections and measurements guide the path to future opportunities and challenges ahead. Band alignment and minimally disruptive connections are both targets and can be characterized in both experiment and theory. I discuss our initial forays into this area in a number of materials systems.


Friday 18 March 2022, Arizona State University, School of Molecular Science, Eyring Lectures, Public Lecture, Tempe, AZ

Nanotechnology Approaches to Biology and Medicine

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Biology functions at the nanoscale. Thus, there are special opportunities not only to make biological measurements using
nanotechnology, but also to interact directly in order to influence biological outcomes. Nanoscience and nanotechnology developed from chemistry, physics, biology, engineering, medicine, toxicology, and a host of other fields. Along the way, we taught each other our problems, challenges, and approaches. The interdisciplinary communication skills that were developed and are now part of our training remain unique to the field. As a result, nanoscience contributes to a wide range of other fields, such as neuroscience and the microbiome.


Friday 1 April 2022, U CONN Lecture, University of Connecticut, Storrs, Connecticut

TBA

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


7th International Conference on Chemical Bonding, Kauai, HI, 11-16 August 2022.

Cage-Molecule Self-Assembly: Long-Range Interactions and Tests of the Effects of Dimensionality and Confinement in Chemistry

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Self-assembled cage molecules offer an opportunity to test chemical and physical properties because within families of molecules, they form identical lattices. Thus, properties such as atomic arrangements within the cage, molecular and surface dipoles, band alignment, and functional group placement can all be controlled. We describe atomic-scale measurements of coordination and valency, dipole, dipole interactions, hydrogen bonding, band alignment, dimensional effects on pKa.


Serbian Materials Research Society Meeting, Herceg Novi, Montenegro, August/September 2022.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095, USA


NanoBio Meeting, Heraklion, Crete, Greece, 2022.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


The IEEE International Conference on “Nanomaterials: Applications & Properties” (IEEE NAP-2022), Krakow, Poland, September 5–10, 2022

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


19-22 October March 2022, Southeast Regional Meeting of the American Chemical Society (SERMAC), San Juan, Puerto Rico

Nanotechnology Approaches to Biology and Medicine

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095

Biology functions at the nanoscale. Thus, there are special opportunities not only to make biological measurements using nanotechnology, but also to interact directly in order to influence biological outcomes. I describe how we fabricate and use nanostructures to advance high-throughput gene editing for cellular therapies targeting genetic diseases and cancer immunotherapy. We also use microfluidics and functionalized nanostructured features in the selective capture, probing, and release of single circulating tumor cells in liquid biopsies in order to diagnose cancers and to assess the efficacy of treatments. We exploit supramolecular assembly, acoustofluidics, specific surface functionalization, and plasmonics to enable these processes. Nanoscience and nanotechnology developed from chemistry, physics, biology, engineering, medicine, toxicology, and a host of other fields. Along the way, we taught each other our problems, challenges, and approaches. The interdisciplinary communication skills that were developed and are now part of our training remain unique to the field. As a result, nanoscience contributes to a wide range of other fields, such as neuroscience and the microbiome.


The 2022 Materials Research Society of Taiwan International Conference (2022 MRS-T International Conference), Online, Taipei, Taiwan, Sunday 13 – Thursday 17 November 2022.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Gordon Research Conference on Electron Spin Interactions with Chiral Molecules and Materials, Southern New Hampshire University, Manchester, New Hampshire, 2023

Materials, Molecules, and Methods To Understand the Effects of Chirality in Spin Selectivity and Transport

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Postponed/To Be Determined


IUSSTF Biomaterials meeting at IIT, Gandhinagar, India, November, 2020.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Franklin Memorial Lectures, Department of Chemistry, Rice University, Houston, Texas, TBA 2020.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


University of Miami, School of Medicine, Miami, FL, TBA 2020.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


IEEE Nanotechnology Materials and Devices Conference (NMDC) 2021 and Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) 2021.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Africa MRS, Dakar, Senegal, December 2022.

TBD

Paul S. Weiss, California NanoSystems Institute and Departments of Chemistry & Biochemistry, Bioengineering, and Materials Science & Engineering, UCLA, Los Angeles, CA 90095


Other Upcoming Meetings of Interest


American Chemical Society and Affiliated Meetings — the Next 10 Years.

American Physical Society and Affiliated Meetings this year or future years, the main (March) meeting is in March (surprise!) each year.

American Vacuum Society National Symposium is in October or November each year.
AVS-related Meetings.

Biophysical Society Annual Meeting is in February every year.

Faraday Discussions of the Chemical Society

The Federation of Analytical Chemistry and Spectroscopy Societies (FACSS) Meeting

Foundations of Nanoscience Meetings are held in Snowbird, Utah every April.

Gordon Conferences.

Materials Research Society Meetings.
Fall in Boston. Spring in San Francisco.

Physical Electronics Conference
58th Annual Physical Electronics Conference held in 1998 at Penn State.

PittCon Meetings
PittCon.

Scientific Programme at the International Centre for Theoretical Physics, Trieste, Italy.

The International Conference on Electron, Ion, and Photon Beam Technology and Nanofabrication (3 Beams).

Engineering Foundation Conferences


Chemical and Engineering News‘ List of Meetings

American Physical Society‘s List of Meetings

European Physics Society‘s List of Meetings

Materials Research Society‘s List of Meetings