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Julia-greer
Building Better Batteries

12-19-16

Julia R. Greer, Professor of Materials Science and Mechanics, and colleagues have measured for the first time the strength of lithium metal at the nano- and microscale, a discovery with important implications for suppressing dendrite formation and improving lithium-ion batteries.  [Caltech story]

Tags: Julia Greer APhMS MCE MedE research highlights

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Professor Tai Elected to National Academy of Inventors

12-13-16

Yu-Chong Tai, Anna L. Rosen Professor of Electrical Engineering and Mechanical Engineering; Executive Officer for Medical Engineering, has been named fellow of the National Academy of Inventors (NAI). He works on miniature biomedical devices including drug pumps, retinal implants, spinal cord implants, and more. He recently developed a device to count white blood cells that requires just a pinprick's worth of blood and processes samples in minutes. Election as an NAI fellow is an honor bestowed upon academic innovators and inventors who have "demonstrated a prolific spirit of innovation in creating or facilitating outstanding inventions and innovations that have made a tangible impact on quality of life, economic development, and the welfare of society." [Caltech story] [NAI release]

Tags: Yu-Chong Tai EE MCE. MedE honors

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Winners of the 2016 Demetriades - Tsafka - Kokkalis Prizes Announced

06-09-16

The student winners of the 2016 Demetriades - Tsafka - Kokkalis Prizes were announced at a special dinner with the Demetriades - Tsafka – Kokkalis family. Rachel P. Galimidi received the prize in Biotechnology for her work with Professor Pamela Bjorkman aimed to further understand the mechanism of HIV evasion of the humoral immune response. Junle Jiang was the recipient of the prize in Seismo-Engineering, Prediction, and Protection for his work with Nadia Lapusta which used probabilistic inversion tools to understand the deep-ocean trench generated tsunamis that occurred during the subduction-zone earthquakes in Japan and Chile. Yinglu Tang working with Dr. Jeff Snyder received the prize in Environmentally Benign Renewable Energy Sources for her work on thermoelectric skutterudites for mid-temperature applications such as automotive waste heat recovery. The second winner in this category was Changhong Zhao who worked with Professor Steven Low to study the control and optimization of modern electric power systems. The winner of the prize in Nanotechnology was Gustavo Rios whose research involves development of a modular, scalable, nanofabricated neural probe system for dense 3-D electrophysiology to study animal brains. Rio’s graduate advisor was Professor Thanos Siapas. The prize in Entrepreneurship was given to Anton A. Toutov who was advised by Professor Robert Grubbs. His research interests lie in using fundamental chemistry to development radically new, sustainable ways to make everyday chemical products and generate clean energy.

Tags: Rachel P. Galimidi Pamela Bjorkman Junle Jiang Nadia Lapusta Yinglu Tang Jeff Snyder Changhong Zhao Steven Low Gustavo Rios Thanos Siapas Anton Toutov Robert Grubbs MCE APhMS CMS EE CNS MedE honors

Julia-greer
Professor Greer Named National Security Science and Engineering Faculty Fellow

03-25-16

Julia R. Greer, Professor of Materials Science and Mechanics, has been chosen as a 2016 class of National Security Science and Engineering Faculty Fellow. The program awards grants to outstanding scientists and engineers at U.S. universities to conduct long-term, unclassified, basic research of strategic importance to the Defense Department. Professor Greer will conduct research in the area of Nano-architected Meta-materials. [U.S. Department of Defense Press Release]

Tags: Julia Greer APhMS MCE MedE honors

Julia-greer
Tiny Diatoms Boast Enormous Strength

02-08-16

Researchers in the lab of Julia R. Greer, Professor of Materials Science and Mechanics, have recently found that diatom shells have the highest specific strength—the strength at which a structure breaks with respect to its density—of any known biological material, including bone, antlers, and teeth. [Caltech story]

Tags: Julia Greer APhMS MCE MedE research highlights

Teo-wilkening
Cancer Treatment in a Painless Patch

11-05-15

Mechanical engineering undergraduate student, Teo Wilkening, spent this past summer working with Professor Gharib to test the preliminary design for an alternative—and possibly much less painful—method of chemotherapy drug delivery through a patch. To avoid the pain caused by the large needle traditionally used for such an intravenous injection, the team envisioned a patch containing hundreds of micrometer-scale needles, too small in diameter to be sensed by the nerves in the skin. [Caltech story]

Tags: Teo Wilkening Morteza Gharib MCE MedE GALCIT research highlight

Julia-greer
Atomic Fractals in Metallic Glasses

09-18-15

Julia R. Greer, Professor of Materials Science and Mechanics, and colleagues including graduate student David Chen have shown that metallic glasses has an atomic-level structure although it differs from the periodic lattices that characterize crystalline metals. "Our group has solved this paradox by showing that atoms are only arranged fractally up to a certain scale," Greer says. "Larger than that scale, clusters of atoms are packed randomly and tightly, making a fully dense material, just like a regular metal. So we can have something that is both fractal and fully dense." [Caltech story]

Tags: Julia Greer David Chen APhMS MCE MedE research highlights

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Women Making History

03-13-15

In celebration of Women’s History Month, influential women leaders from the Jet Propulsion Laboratory (JPL) and Caltech gathered at the JPL von Karman auditorium. Present at the event, entitled Women Making History, were the 2015 honorees for Women@JPL as well as Caltech faculty and staff. It was an opportunity for women at different stages of their career to meet and network. EAS faculty were represented by Professors Bordoni, Greer, and Hunt.  The JPL Advisory Council for Women was the lead organizer of the event.

Tags: Simona Bordoni Julia Greer Melany Hunt ESE MCE APhMS MedE JPL honors

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Four Caltech Professors Elected to the National Academy of Engineering

02-05-15

Professors Harry AtwaterMorteza GharibGuruswami Ravichandran, and Robert Grubbs have been elected to the National Academy of Engineering (NAE). Professor Atwater was elected for contributions to plasmonics. Professor Gharib was elected for contributions to fluid flow diagnostics and imagery, and engineering of bioinspired devices and phenomena. Professor Ravichandran was elected for contributions to mechanics of dynamic deformation, damage, and failure of engineering materials. Professor Grubbs was elected for developments in catalysts that have enabled commercial products. [Caltech story]

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Tags: Harry Atwater Morteza Gharib Guruswami Ravichandran Robert Grubbs Dan Goebel Graeme Stephens Vigor Yang APhMS GALCIT MedE MCE National Academy of Engineering honors

Julia-greer
Professor Greer Receives Robert W. Cahn Best Paper Prize

12-11-14

Julia R. Greer, Professor of Materials Science and Mechanics, and graduate student Lucas R. Meza’s paper entitled “Mechanical characterization of hollow ceramic nanolattices” is the winner of the 2014 Journal of Materials Science Robert W. Cahn Best Paper Prize. The prize recognizes a truly exceptional original research paper published in the journal in a particular calendar year. The winning paper is selected from the twelve finalists by a panel of distinguished materials scientists

Tags: Julia Greer Lucas Meza APhMS MCE MedE honors

Department of Mechanical and Civil Engineering