Upcoming Talks

(Last Updated On: March 8, 2021)


Archive of Previous Talks


Online Talks Available Now


Available online now, Fireside Chat Series, Terasaki Institute

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


Available now online, ACS Spring 2020 Expo.

Surface-Mediated Crystal Growth of Aurous Cyanide from Molecular Self-Assembled Monolayers

Kristopher Barr, Department of Chemistry and Biochemistry, UCLA, Los Angeles, CA 90095

Self-assembled monolayers have been used to pattern surfaces at the nanometer scale. These patterns enable us to change the surface properties of materials using surface functionalization. Cyanide has a strong affinity towards gold; however, the basic chemical and physical properties of gold cyanide compounds remain largely unexplored. Unraveled by scanning tunneling microscopy, cyanides can form monolayers on gold substrates when exposed to dilute concentrations of cyanide vapor with two distinct absorption geometries: carbon bound to gold and nitrogen bound to gold. Upon prolonged vapor deposition, the self-assembled cyanide monolayers reconfigure into large-scale aurous cyanide (AuCN) crystals. Similar to our previous discoveries on self-assembled monolayers, we found two distinct morphologies. Those monolayers have similar optical properties, but significantly different cyanide vibrational modes. We postulate that the unit cell also rearranges resulting in structures differing in both gold-cyanide orientation and long-range ordering. We anticipate that our findings will lead to new insights for controlled surface-mediated crystal growth.


Available online now, iCANx, Beijing, China.

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.


Upcoming Talks


Thursday 11 March 2021, 7:30 AM (PST), World Nano Congress on Advanced Science and Technology (WNCST-2021), Tamil Nadu, India, 8-12 March 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 

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 and are intertwined in terms of their function. 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.


27th CRSI National Symposium in Chemistry (NSC-28), Indian Institute of Technology (IIT), Guwahati, India, 1-4 April 2021.

TBD

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


ACS Award in Chemistry of Materials at ACS Spring, 15-16 April 2021.

TBD

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


IEEE NEMS 2021, Xiamen, China, 25-29 April 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

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 and are intertwined in terms of their function. 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.


University of Massachusetts, School of Medicine, Boston, MA, 29 April 2021.

TBD

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


2021 Gordon Research Conference on Artificial Molecular Switches and Motors, Stonehill College, Easton, Massachusetts, 6-11 April 2021

TBD

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


ACS Colloids and Surface Science Symposium, Rice University, Houston, Houston, Texas, 14-16 June 2021.

TBD

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


June 2021, Nano@Iowa State, Iowa State University, Ames, Iowa.

Global Opportunities in Nanoscience and Nanotechnology

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.


28th CRSI National Symposium in Chemistry (NSC-28), IISER Kolkata, 16-19 July 2021.

Title TBD

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


AIE20 International Conference, Guangzhou, China, 24-27 July 2021.

Title TBD

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


2021 Gordon Research Conference on Electron Spin Interactions with Chiral Molecules and Materials, Southern New Hampshire University, Manchester, New Hampshire, August 1-6, 2021

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


7 August 2021, Xiamen University, Fujian Province, China.

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.


7th International Conference on Chemical Bonding, Kauai, HI, 9-13 August 2021.

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.


AAAFM-UCLA 2021, UCLA, Los Angeles, CA, 18-20 August 2021.

Title TBD

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


ChinaNANO 2021, Beijing, China, 28 – 30 August 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.


Serbian Materials Research Society Meeting, Herceg Novi, Montenegro, 30 August – 9 September 2021.

TBD

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


NanoBio Meeting, Heraklion, Crete, Greece, 9 September – 21 October 2021.

TBD

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


Friday 1 October 2021, Distinguished Lecture Series, Institute of Materials Science, University of Connecticut

TBD

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


Inaugural IEEE NTC Fellows Presentation, 16th IEEE Nanotechnology Materials and Devices Conference (IEEE NMDC 2021), Vancouver, Canada, 17 – 20 October 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

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.


RIES International Symposium, Sapporo, Japan, 6 – 7 December 2021.

TBD

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


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

Submolecular resolution spectroscopic imaging for photoactive molecules and assemblies

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

Rick Van Duyne’s career was built on understanding and leveraging nanoscale interactions of light and fields. Inspired by and building on his work, we have developed and applied new multimodal nanoscale analysis tools based on the scanning tunneling microscope (STM) to measure structure, function, and spectra simultaneously. We are particularly interested in the interactions of photons with precisely assembled structures. We use molecular design, tailored syntheses, intermolecular interactions, and selective chemistry to direct molecules into desired positions to create nanostructures with controlled environments and dimensionality, to connect functional molecules to the outside world, and to serve as test structures for measuring single or bundled molecules and assemblies. The measured results of photoexcitation include photoconductivity, regioselective reaction, intramolecular charge redistribution, and environmental sensitivity. We apply this method to optimize molecules and materials for energy conversion and storage. Concepts from sparsity and compressive sensing are developed and applied to guide efficient data acquisition and to accelerate data analysis and information assembly.


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


Arizona State University, School of Molecular Science, Eyring (Department) Lectures, Phoenix, AZ, 2021.

Precise Chemical, Physical, and Electronic Nanoscale 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.


Arizona State University, School of Molecular Science, Eyring (Public) Lectures, Phoenix, AZ, 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.


Africa MRS, Arusha, Tanzania, 13-17 December 2021.

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 Mee