Colloquia and Events

During the academic year, the Department hosts a weekly colloquium series which features speakers from both academia and industry.  This semester (Fall 2018) the colloquia take place on Thursdays from 3:15-4:30 pm in BIOS 335.  Refreshments are served at 3:15 pm and talks begin at 3:30 pm.

This week's colloquium

"Bioinspired Dynamic Material Systems based on Smart Hydrogels: Sensing, Sorting, and Harvesting"
Prof. Ximin He
Thursday, Nov. 1, 3:15 pm in BIOS 335

From the cellular level up to the body system level, living organisms cooperatively sense and adapt to local environments, transport specific biological species in the complex bio-fluids, and harvest energy from the environment to keep alive and perform various functionalities. These graceful capabilities arise from the coordination of the chemo-mechanical actions of their muscles and/or tissues with their environmentally vigilant cells, such as the molecular configuration changes and micro/macroscopic mechanical motions in response to a variety of signals. Inspired by these unique abilities, we have developed a series of dynamic material systems, which are based on stimuli-responsive hydrogel and its adaptively reconfigurable microarchitecture. This presentation will introduce several novel functionalities that this broad-based platform has demonstrated, ranging from beetle-inspired ultrafast colorimetric sensing of chemical and biological species, autonomous sorting of target molecules in complex bio-fluids or wastewater, and plant-mimetic adaptive light tracking and harvesting, as well as the recently developed additive manufacturing technique for printing metallic structures at room temperature for fabricating soft robotics and flexible electronics. Overall, the environment-adaptive, dynamic material systems would have transformative impacts in areas ranging from medical implants that help stabilize bodily functions, to a low-cost, high-throughput point-of-care diagnostic tool of disease indicators in solution, and to smart devices that regulate energy usage.


Upcoming colloquia

Nov. 8: Prof. Zhongbo Kang, UCLA, "Quantum tomography of a proton"

Nov. 15: Prof. Olaseni Sode, Cal State LA, "Exploring the electronic and vibrational structure of carbon dioxide"

Nov. 29: Prof. Marco Bernardi, Caltech, "Advances in Computing Charge Carrier Dynamics in Materials from First Principles"

Previous colloquia

Oct. 25: Dr. Coral Wheeler, Caltech, "Be it therefore resolved: simulating dwarf galaxies at the high resolution limit"

Oct. 18: Prof. Breanna Binder, Cal Poly Pomona, "SN2010da: From Supernova Impostor to Ultraluminous X-ray Source"

Oct. 11: Prof. Anna Bezryadina, CSU Northridge, "Optical trapping and manipulation of bacteria"

Oct. 4: Prof. Wylie Ahmed, CSU Fullerton, "Active mechanics and forces that keep our cells alive" 

Sept. 27: Prof. Eli Levenson-Falk, USC, "Fleas on Schrödinger's Cat: Decoherence in Superconducting Quantum Circuits"

Sept. 20: Arabi Seshappan, Cal State LA, "CeBOx (B=La, Mn, Co, Fe) as potential catalysts for thermochemical water splitting reactions"

Sept. 13: Marc Ong, Cal State LA, "Applications of machine learning in physics and chemistry"

Sept. 6: Prof. Peter Zhao, Cal State LA, "Polaronic high-temperature superconductivity in cuprates, bismuthates, and pnictides"

May 3: Prof. Christoph Haselwandter, USC, "Collective phenomena in cell membranes"

April 26: Dr. Yuval Baum, Caltech, "Current at a distance and resonant transparency in Weyl semimetals"

April 19: Prof. Jayakanth Ravichandran, USC, "Shining Light on Perovskite Chalcogenides: Semiconductors for Visible to Infrared Optoelectronics"

This list will be rebuilt shortly!  (We had a little accident...)