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Studying Chaos with One of the World's Fastest Cameras

01-14-21

There are things in life that can be predicted reasonably well. The tides rise and fall. A billiard ball bounces around a table according to orderly geometry. And then there are things that defy easy prediction: The hurricane that changes direction without warning. The splashing of water in a fountain. These phenomena and others like them can be described as chaotic systems. Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has developed a new tool that might help to better understand chaotic systems. [Caltech story]

Tags: EE research highlights MedE Lihong Wang

Lihong Wang Named to National Academy of Inventors

12-10-20

Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has been named fellow of the National Academy of Inventors (NAI). Election as a fellow is the highest professional distinction accorded to academic inventors who have demonstrated a prolific spirit of innovation in creating or facilitating outstanding inventions that have made a tangible impact on quality of life, economic development and the welfare of society. The Wang lab has developed photoacoustic imaging that allows researchers to see into biological tissues noninvasively, and to peer deeper into the body by nearly two orders of magnitude compared to conventional optical microscopy. [Caltech story] [List of 2020 Fellows]

Tags: EE honors MedE Lihong Wang

Changhuei Yang Named to National Academy of Inventors

12-10-20

Changhuei Yang, Thomas G. Myers Professor of Electrical Engineering, Bioengineering, and Medical Engineering, has been named fellow of the National Academy of Inventors (NAI). Election as a fellow is the highest professional distinction accorded to academic inventors who have demonstrated a prolific spirit of innovation in creating or facilitating outstanding inventions that have made a tangible impact on quality of life, economic development and the welfare of society. The Yang lab develops technologies aimed at transforming the conventional microscope so that it can be used for high-throughput, automated applications. He also works on the use of "time-reversal" techniques to undo the effect of tissue light scattering. [Caltech story] [List of 2020 Fellows]

Tags: EE honors Changhuei Yang MedE

Lihong Wang Receives NIH BRAIN Grant

12-07-20

Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has received funding for neuroscience projects from the National Institutes of Health's Brain Research through Advancing Innovative Neurotechnologies (BRAIN) Initiative. Wang and his team aim to develop a technology called 3D photoacoustic computed tomography (PACT) that will rapidly image large-scale neural activity in human brains with high sensitivity. "Photoacoustic imaging of adult human brains is one of the most challenging frontiers in our field," says Wang. "It requires innovation to overcome the signal attenuation and wavefront distortion due to the skull. I'm glad that the NIH has the vision to fund this worthy research direction." [Caltech story]

Tags: EE research highlights MedE Lihong Wang

Isabella Yang Named to Forbes Magazine's 30 Under 30

12-01-20

Graduate student Yiran (Isabella) Yang has been named to Forbes magazine's 30 Under 30 for developing wearable sweat sensors to help intervene earlier and monitor progression of heart disease and other health problems. She recently adapted the sensors to detect Covid-19 antibodies in human saliva. The list honors people from 12 fields that range from finance and science to music and entertainment. [Forbes 30 Under 30 Full List]

Tags: honors MedE Isabella Yang

Ultrafast Camera Films 3-D Movies at 100 Billion Frames Per Second

10-19-20

Lihong Wang, Bren Professor of Medical Engineering and Electrical Engineering, has developed technology that can reach blistering speeds of 70 trillion frames per second, fast enough to see light travel. Just like the camera in your cell phone, though, it can only produce flat images. Now, Wang's lab has gone a step further to create a camera that not only records video at incredibly fast speeds but does so in three dimensions. [Caltech story]

Tags: EE research highlights MedE Lihong Wang

New Device Powers Wearable Sensors Through Human Motion

10-16-20

Wei Gao, Assistant Professor of Medical Engineering, has been developing sensors as well as novel approaches to power them. Previously, he created a sensor that could monitor health indicators in human sweat that is powered by sweat itself. Now, Gao has developed a new way to power wireless wearable sensors: He harvests kinetic energy that is produced by a person as they move around. "Instead of using fancy materials, we use commercially available flexible circuit boards," he says. "This material is cheap and very durable and mechanically robust over long periods of time." [Caltech story]

Tags: research highlights MedE Wei Gao

Professor Gao Unveils Sensor that Rapidly Detects COVID-19 Infection Status, Severity, and Immunity

10-02-20

One feature of the COVID-19 virus that makes it so difficult to contain is that it can be easily spread to others by a person who has yet to show any signs of infection. Professor Wei Gao has developed a new type of multiplexed test (a test that combines multiple kinds of data) with a low-cost sensor that may enable the at-home diagnosis of a COVID infection through rapid analysis of small volumes of saliva or blood, without the involvement of a medical professional, in less than 10 minutes. "This is the only telemedicine platform I've seen that can give information about the infection in three types of data with a single sensor," Gao says. "In as little as a few minutes, we can simultaneously check these levels, so we get a full picture about the infection, including early infection, immunity, and severity." [Caltech story]

Tags: research highlights MedE Wei Gao

Isabella Yang receives Baxter Young Investigator Award

08-18-20

Graduate student Yiran (Isabella) Yang, working with Professor Wei Gao, has received a first-tier Baxter Young Investigator Award for her research on a wearable sweat sensor for clinical nutrition. This award is given for an outstanding research work which aligns with Baxter’s mission of saving and sustaining patients’ lives.

Tags: honors MedE Wei Gao Isabella Yang

Winners of the 2020 Demetriades - Tsafka - Kokkalis Prizes Announced

06-24-20

The student winners of the 2020 Demetriades - Tsafka - Kokkalis Prizes were announced at the end of this academic year. Manuel Bedrossian, advised by Professor Moretza Gharib has received the prize in Biotechnology. His research is in the development of novel optical imaging devices to investigate and characterize microbial populations in extreme environments around the world. Vinayak Narasimhan, advised by Professor Moretza Gharib and Hyuck Choo has received the prize in Biotechnology. His research is in the utilization of nanostructures inspired from nature in practical biomedical applications. Tyler Ross, advised by Professor Matt Thomson and Professor Paul Rothemund has received the prize in Nanotechnology. His research is in guiding biomolecular filaments and motors to form structures and flow fields with patterned light. Adam Neumann, advised by Professor Michael Roukes has received the prize in Nanotechnology. His research involves incorporating nanoscale sensors into a mass spectrometer and using them to weigh individual molecules and perform rudimentary imaging of them. Joaquin Garcia Suarez, advised by Professor Dominiki Asimaki has received the prize in Seismo-Engineering, Prediction, and Protection. His research is in fundamental research in Continuum Mechanics to better understand the behavior of civil structures during earthquakes.

Tags: honors MedE MCE Demetriades - Tsafka - Kokkalis Prizes Vinayak Narasimhan Joaquin Garcia Suarez Adam Neumann Tyler Ross Manuel Bedrossian