Bringing experimentalists and computaional scientists together
Center for Integrated Nanotechologies, Sandia National Laboratories
Albuquerque, NM
CINT Core Rooms 1026 (LANL/Sandia staff only) & Virtual
Virtual: Microsoft Teams
Call in number: +1 505-373-1510
Meeting ID number: 246 606 043#
Join Professor Paul S. Cremer for his talk — Exploring the Binding of Ions to Polymers in Aqueous Salt Solutions.
Abstract: Hofmeister series chemistry has been a focus of both fundamental and industrial interest since it was first discovered 135 years ago. It can be shown that a wide variety of physical phenomena follow a recurring rank ordering for both cations and anions when water, organic molecules, and salts are mixed. Examples include the hydrophobic collapse and aggregation of macromolecules, the turnover rate of enzymes, the pickling of cucumbers, and even the transfer of charge between ice particles in a lightning storm. Using a combination of spectroscopic techniques, thermodynamic measurements as well as simulations, it is now possible to elucidate key molecular level details of Hofmeister series behavior. In this presentation, the solubility of thermoresponsive polymers in the presence of salts will be discussed. The results show that weakly hydrated anions bind along polymer chains in locations where the hydrogen bonding is most greatly disrupted. Curiously, this makes shorter oligomers less soluble compared to longer polymers possessing the same chemical constituents. Moreover, weakly hydrated anions interact more strongly than cations with uncharged polymer chains. In fact, metal cations rarely come to the polymer/water interface without being accompanied by counter anions.
Host: Susan Rempe — slrempe@sandia.gov or 505-903-9489.
Join CINT Co-Director Adam Rondinone for his talk, “Overview of the Nanoscale Science Research Centers and Opportunities in Microelectronics” during a live webinar exploring the work carried out at the Department of Energy’s Nanoscale Science Research Centers.
https://physicsworld.com/a/focus-on-u-s-department-of-energys-nanoscale-science-research-centers/
Celebrate National Nanotechnology Day with the Center for Integrated Nanotechnologies (CINT) and the Bradbury Science Museum!
Bradbury Science Museum
Los Alamos, NM
This Sunday, October 9, visit the Bradbury to find out just how long a 100-billion nanometers really is and explore
the Nano Scavenger Hunt to learn fun facts about nanotechnology and the incredible real world applications for research happening at CINT. Complete the 100-billion nanometer course or the scavenger hunt and see
the museum guides for coolprizes!
Bringing experimentalists and computaional scientists together
Center for Integrated Nanotechologies, Sandia National Laboratories
Albuquerque, NM
CINT Core Rooms 518/1026 & 1041
Virtual: Microsoft Teams
Call in number: +1 505-373-1510
Meeting ID number: 151 715 260#
Join Professor Anna Marie Pyle for her talk — RNA Folding and Nanostructural Design:
Lessons on RNA Tertiary Structure from Catalytic RNA Molecules
Abstract: RNA molecules, such as viral genomes and human transfer RNAs, are not composed of floppy linear strings. Rather, they fold into specific, compact 2-D and 3-D structures that are dictated by their sequences, just like proteins. My group has focused on the driving forces and architectural building blocks for RNA tertiary (3D) structure. These are essential for the formation of functional RNA molecules in the cell, such as ribosomal RNAs, splicing RNAs, transfer RNAs and regulatory elements in viral genomes. Using cryoelectron microscopy, crystallography and other biophysical methods, we have deduced the “nuts and bolts” of RNA 3-D structure in self-splicing introns and other regulatory RNA molecules, learning the rules for RNA folding that will ultimately be used to computationally predict RNA structure from sequence.
Host: Susan Rempe — If you would like to meet with Prof. Pyle, please contact Susan at slrempe@sandia.gov or 505-903-9489.
Registration for this event is now closed. Please join us next year for the 2023 ICE Workshop.
Center for Integrated Nanotechnologies Core Facility, Albuquerque, NM
Explore the increasing role of cryogenic electron microscopy (cryo-EM) techniques in materials science, and demonstrate innovative workflows to scientists, postdocs, and students.
The ‘ICE Workshop for Advanced Materials’ is an in-person science and training workshop combining invited lectures on current advancements and applications of cryogenic electron microscopy for materials sciences with lab demonstrations of current state-of-art cryogenic microscopy techniques.
This workshop covers each critical step of a successful cryogenic microscopy study, including specimen preparation, specimen transfer, cryogenic SEM/FIB, new cryo-EM stages, imaging, and spectroscopy at low temperatures. Vendor talks will provide information on the current state-of-the-art tools and workflows for Cryo-EM experiments. In-person lab demonstrations will be performed at CINTs Core Facility at SNL, allowing participants to have live interactions with the instructors and hands-on experience. We invite participants to bring a (3’ x 4’) poster of their work to share during the workshop. Additional pre-recorded lab demonstrations will be provided by experts from various institutions.
Organizing Committee:
John Watt, Los Alamos National Laboratory (LANL), watt@lanl.gov
Katie Jungjohann, National Renewable Energy Laboratory (NREL), katherine.jungjohann@nrel.gov
Miaofang Chi, Oak Ridge National Laboratory (ORNL), chim@ornl.gov
Minghao Zhang, University of California, San Diego, miz016@eng.ucsd.edu