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Winners of the 2017 Demetriades - Tsafka - Kokkalis Prizes Announced

06-07-17

The student winners of the 2017 Demetriades - Tsafka - Kokkalis Prizes have been announced. Manuel Alejandro Monge Osorio received the prize in Biotechnology for his work with Professor Azita Emami which involves developing novel techniques for the miniaturization of implantable medical electronics in two important pillars: localization of medical devices and electrical stimulation. Pinaky Bhattacharyya was the recipient of the prize in Seismo-Engineering, Prediction, and Protection for his work with Professor Jim Beck investigating an information-theoretic approach to the problem of the optimal sensor placement for Bayesian system identification of structures using response time-history data. Bryan M. Hunter, working with Professor Harry Gray, received the prize in Environmentally Benign Renewable Energy Sources for his work on the development and characterization of a nickel-iron layered double hydroxide water oxidation catalyst with the goal of developing a solar-driven device for the synthesis of fuels, with hydrogen production as a target. The winner of the prize in Nanotechnology was Anupama Thubagere Jagadeesh whose research interests are focused on understanding the engineering principles behind designing and synthesizing programmable molecular machines.. Anupama’s graduate advisor was Professor Lulu Qian. The prize in Entrepreneurship was given to Ken Y. Chan who was advised by Professor Viviana Gradinaru. His research interests lie in developing tissue clearing technologies to render whole organs transparent for optical investigation..

Tags: EE honors MedE MCE CMS Demetriades - Tsafka - Kokkalis Prizes James Beck Lulu Qian Harry Gray Azita Emami Manuel Alejandro Monge Osorio Pinaky Bhattacharyya Bryan Hunter Ken Chan Viviana Gradinaru Anupama Thubagere Jagadeesh

Cutting Down on Cancer Surgeries

05-17-17

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]

Tags: EE research highlights MedE Lihong Wang

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

05-10-17

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]

Tags: EE research highlights MedE Lihong Wang

Black Silicon Prevents Eye Implant from Gumming Up

04-13-17

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]

Tags: EE research highlights MedE Hyuck Choo

Seeing Deeper: An Interview with Lihong Wang

03-10-17

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

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: EE honors Yu-Chong Tai MCE. MedE

Noise-Canceling Optics

10-10-16

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]

Tags: EE research highlights Changhuei Yang MedE

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

Professor Hajimiri Elected to National Academy of Inventors

12-16-15

Ali Hajimiri, Thomas G. Myers Professor of Electrical Engineering; Executive Officer for Electrical Engineering; Director, Information Science and Technology, has been named fellow of the National Academy of Inventors (NAI). His research covers broad areas within high-speed and high-frequency electronics- and photonics-integrated circuits. This year, the Hajimiri group synthesized a 3-D camera—called a nanophotonic coherent imager—that provides the highest depth-measurement accuracy (similar to resolution) of any such nanophotonic 3-D imaging device. 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: EE honors MedE Ali Hajimiri

Popping Microbubbles Help Focus Light Inside the Body

12-03-15

Changhuei Yang, Professor of Electrical Engineering, Bioengineering, and Medical Engineering, and his postdoctoral colleague Dr. Haowen Ruan have developed a novel technique called time-reversed ultrasound microbubble encoded (TRUME) that uses gas-filled microbubbles to focus light inside tissue. "Ultrasound and X-ray techniques can only detect cancer after it forms a mass," Yang says. "But with optical focusing, you could catch cancerous cells while they are undergoing biochemical changes but before they undergo morphological changes." [Caltech story]

Tags: EE Changhuei Yang MedE health research highlight postdocs