Department of Applied Physics and Materials Science - Applied Physics

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Highlights

Wei Gao Receives Pittsburgh Conference Achievement Award

07-07-21

Wei Gao, Assistant Professor of Medical Engineering, has received the Pittsburgh Conference Achievement Award (PCAA). The Pittsburgh Conference Achievement Award is given annually to a researcher who has made a significant and independent impact in the area of analytical chemistry within the first ten years after his or her doctoral degree. [Past Recipients]

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Wei Gao Receives 3M Non-Tenured Faculty Award

03-08-21

Wei Gao, Assistant Professor of Medical Engineering, has been selected to receive the prestigious 3M Non-Tenured Faculty Award from 3M Corporation. This award recognizes outstanding new faculty who were nominated by 3M researchers and selected based on their research, experience and academic leadership. The purpose of the award is to help the faculty members achieve tenure, remain in their teaching position, and conduct research.

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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]

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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. Wei Gao, Assistant Professor of Medical Engineering, 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]

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Isabella Yang receives Baxter Young Investigator Award

08-18-20

Graduate student Yiran (Isabella) Yang, working with Wei Gao, Assistant Professor of Medical Engineering, 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.

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Wei Gao Receives IEEE EMBS Academic Early Career Achievement Award

06-16-20

Wei Gao, Assistant Professor of Medical Engineering, has won the 2020 IEEE EMBS Academic Early Career Achievement Award for innovative and pioneering contributions in the field of bioelectronic devices from wearable biosensors for continuous personalized health monitoring to synthetic micro/nanorobotics for in vivo biomedical applications. This award is given annually to an individual for significant contributions to the field of biomedical engineering as evidenced by innovative research design, product development, patents, and/or publications made by an individual who is within 10 years of completing their highest degree at the time of the nomination.

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Professor Gao Named Young Scientist by the World Economic Forum

05-26-20

Wei Gao, Assistant Professor of Medical Engineering, has been selected as a 2020 Young Scientist by the World Economic Forum. Each year the selection Committee honours 25 Young Scientists under the age of 40 in recognition of their contribution to cutting-edge research. Candidates are selected based on their achievements in expanding the boundaries of knowledge and practical applications of science in issues as diverse as child psychology, chemical oceanography and artificial intelligence. Gao's research is focused on developing skin-interfaced wearable biosensors that will enable analytics through sweat rather than blood, leading to non-invasive and real-time analysis and timely medical intervention. [2020 Young Scientists] [Brochure]

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Electronic Skin Fully Powered by Sweat Can Monitor Health

04-23-20

One of the ways we experience the world around us is through our skin. From sensing temperature and pressure to pleasure or pain, the many nerve endings in our skin tell us a great deal. Our skin can also tell the outside world a great deal about us as well. Wei Gao, Assistant Professor of Medical Engineering has developed an electronic skin, or e-skin, that is applied directly on top of your real skin. "We want this system to be a platform," he says. "In addition to being a wearable biosensor, this can be a human–machine interface. The vital signs and molecular information collected using this platform could be used to design and optimize next-generation prosthetics." [Caltech story]

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Sweat Sensor Detects Stress Levels; May Find Use in Space Exploration

02-27-20

Wei Gao, Assistant Professor of Medical Engineering, has produced a wireless sweat sensor that can accurately detect levels of cortisol, a natural compound that is commonly thought of as the body's stress hormone. This could allow for more widespread and easier monitoring of stress, anxiety, post-traumatic stress disorder, and depression. "We aim to develop a wearable system that can collect multimodal data, including both vital sign and molecular biomarker information, to obtain the accurate classification for deep space stress and anxiety," Gao says. [Caltech story]

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