Biophysical Society 65th Annual Meeting Program Guide

Refeyn 4640 SWMacadam Avenue, Suite 130D Portland, OR 97239 www.refeyn.com Refeyn – Weighing molecules with light. The pioneer in mass photometry, Refeyn produces a disruptive new generation of analytical instruments that measure the mass of individual molecules directly in solution. Mass photometry transforms our ability to characterize the composition, structure and dynamics of biomolecules, revealing the true behavior of molecules in their native environ- ment. Simply, Refeyn instruments can show sample purity and homogeneity, analyze bio- molecular complex assembly or disassembly, quantify strength and kinetics of complex molecular interactions, and much more. Research, a Science Partner Journal 1200 New York Avenue NW Washington, DC 20005 https://spj.sciencemag.org/research/ The Science Partner Journal Research is an online Open Access journal distributed by the American Association for the Advancement of Science (AAAS) in association with Science and Technology Review Publishing House, the publishing house under the leadership of China Association for Science and Technology (CAST). Research provides an international platform for academic exchange, collabora- tion, and technological advancements. The journal publishes fundamental research in the life and physical sciences as well as important findings or issues in engineering and applied science.

ScienCell Research Laboratories 1610 Faraday Avenue

PI (Physik Instrumente) 16 Albert Street Auburn, MA 01501 www.pi-usa.us ISO-9001-Certified, Global Leader in Precision Motion Solutions. Piezo Mechanisms, Air Bearings, Hexapods, Photonics Alignment, Nanopositioning, Micropositioning, Piezo Positioning Systems, Linear Motors & Rotary Stages for OEM & Research. Products: Nanopositioning Systems; 6-Axis Hexapod Alignment Systems, Microscopy Stages; Lens Positioners; Tip/Tilt Mirrors; Piezo Transducers, Piezo Actuators; Piezo Motors, Piezo Drivers & Digital Motion Controllers; Voice Coil Actuators, MicroMotion Robots. Protein Stable 100 Cummings Center, Suite 440C Beverly, MA 01915 https://www.proteinstable.com/ Our focus is on high throughput, low volume methods for protein characterization for increased productivity, without compromise to data quality. But together the capabilities of chemical denaturation, automated liquid handling, intrinsic fluorescence microplate spectrofluorimetry and method-based char- acterisation of fluorescence spectra, the SUPR-CM protein stability measurement facilitates formulation and protein optimiza- tion programs at higher-throughputs and at lower sample volumes. Protein Stable is a joint venture between Applied Photophysics and Fluorescence Innovations. Quantum Northwest builds Peltier-based, temperature-controlled cuvette holders for spectroscopy. Our 18 models of cuvette holder are optimized for UV-Vis absorption, fluorescence, circular dichroism, Raman and FTIR. We make single cell holders as well as multi-cell cuvette changers. We are particu- larly adept at configuring these models of cuvette holder for many different spectrom- eter designs. We make stand-alone cuvette holders for laser spectroscopy and for use with fiber optic spectroscopy systems. New products are now available for neutron scat- tering. Quantum Northwest Inc 22910 E Appleway Avenue, Suite 4 Liberty Lake, WA 99019 www.qnw.com

Carlsbad, CA 92110 sciencellonline.com

ScienCell Research Laboratories is an expand- ing biotechnology company established in 1999. Our mission is to research and develop cell products for experimental use. ScienCell provides a variety of high quality normal human and animal cells, cell culture media and reagents, gene analysis tools, cell-derived molecular biology products, cell-based assay kits, and stem cell products for the research community. We offer specialty medium designed to selectively promote unique cell growth, including STEMium™. SLAC National Accelerator Lab 2575 Sand Hill Road, MS 69 Menlo Park, CA 94025 cryoem.slac.stanford.edu/s2cs/ The NIH Common Fund Transformative High Resolution Cryo-Electron Microscopy program funds three National Centers. They are avail- able free of charge through competitive peer review of user proposals to: 1) provide access to high-end cryo-EM instruments for atomic resolution data collection of single particle specimens and 2) train independent cryo-EM investigators. For more information: Stanford- SLAC Cryo-EM Center: https://cryoem.slac. stanford.edu/s2c2 Pacific Northwest Cryo-EM Center: https://pncc.labworks.org National Center for CryoEM Access and Training: https://nccat.nysbc.org. Sophion Bioscience A/S Sophion was founded almost 20 years ago by a group of passionate electrophysiologists, with the purpose of making patch clamping objective and independent of user skills to provide faster, more accurate and objective patch clamping results. With our products QPatch and Qube we cover most throughput needs and provide the user with real whole- cell patch-clamp data based on true gigaseals. With our technical, biological and application support we help our partners achieving their targets and ensuring uncompromised data quality in a user-friendly environment from assay setup to data analysis. Baltorpvej 154 Ballerup, 2750 Denmark www.sophion.com

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