News & Events


Cutting Down on Cancer Surgeries


Engineers at the Optical Imaging Laboratory led by Professor Lihong Wang have developed an imaging technology that could help surgeons removing breast cancer lumps confirm that they have cut out the entire tumor—reducing the need for additional surgeries. “What if we could get rid of the waiting? With 3D photoacoustic microscopy, we could analyze the tumor right in the operating room, and know immediately whether more tissue needs to be removed,” Professor Wang explains. [Caltech story]

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Laser-Induced Sound Waves Provide Live Panoramic Views of Tissue Functions


Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, and colleagues are now able to take a live look at the inner workings of a small animal with enough resolution to see active organs, flowing blood, circulating melanoma cells, and firing neural networks. "Photoacoustic tomography combines light and sound synergistically for high-resolution imaging of molecular contrast," says Professor Wang. [Caltech story] [Read the paper]

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Black Silicon Prevents Eye Implant from Gumming Up


Hyuck Choo, Assistant Professor of Electrical Engineering; Investigator, Heritage Medical Research Institute, and colleagues have developed an eye implant for glaucoma patients that could one day lead to more timely and effective treatment. Professor Choo has developed a passive system that eschews electronics and so needs no batteries and has no antennae. At just 600–800 micrometers in diameter, the sensor is the width of a few strands of hair. [Caltech story]

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The Human Side of Engineering


The course Design for Freedom from Disability (E/ME/MedE 105a) taught by Professor Ken Pickar and Andy Lin, a rehab engineer at Rancho Los Amigos National Rehab Center, has given undergraduate students Stephanie Moon and Lawrence Lee a new view of the power engineers have to benefit others. [Learn more]

Tags: MCE Ken Pickar Andy Lin Stephanie Moon Lawrence Lee

Seeing Deeper: An Interview with Lihong Wang


Using a combination of light and sound, Professor Lihong Wang is noninvasively peering deeper inside biological tissues than previously possible. His team uses three-dimensional photoacoustic microscopy and functional photoacoustic computed tomography to generate detailed color images of tumors and other structures inside the body. [Interview with Prof. Wang]

Tags: EE research highlights MedE Lihong Wang

Building Better Batteries


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]

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Professor Tai Elected to National Academy of Inventors


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]

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Noise-Canceling Optics


Changhuei Yang, Professor of Electrical Engineering, Bioengineering, and Medical Engineering, and colleagues have created the visual analogue of noise-canceling headphones—a camera system that can obtain images of objects obscured by murky media, such as fog or clouds, by canceling out the glare. Their device selectively cancels the scattered light, leaving only the light that is reflected or bounced off the objects and has slipped back through the murk unmolested. [Caltech story]

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Winners of the 2016 Demetriades - Tsafka - Kokkalis Prizes Announced


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

Professor Greer Named National Security Science and Engineering Faculty Fellow


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]

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Medical Engineering