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Professor Jun Chen from UCLA to Speak at Colloquium May 29, 2024

Dr. Jun Chen
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WCH 205/206

Discovering Giant Magnetoelasticity in Soft Matter for Bioelectronics

Abstract

The magnetoelastic effect, also named as Villari effect and discovered in 1865 by Italian experimental physicist Emilio Villari, is the variation of the magnetic field of a material under mechanical stress. This effect is usually observed in rigid metal and metal alloys with an externally applied magnetic field and has been ignored in the field of soft bioelectronics for the following three reasons: the magnetization variation in the biomechanical stress range is limited; the requirement of the external magnetic field induces structural complexity and bulky structure, and there exists a gigantic mismatch of mechanical modulus up to six orders of magnitude difference between the rigid magnetoelastic materials and the soft human tissues. In 2021, we discovered the giant magnetoelastic effect in a solid soft polymer system, later in a liquid permanent fluidic magnet, which paves a fundamentally new way to build up intrinsically waterproof and biocompatible soft bioelectronics for diagnostics, therapeutics, and energy applications. Our group at UCLA is currently pioneering this research effort of harnessing giant magnetoelastic effects in soft systems for healthcare and energy.

Biography

Dr. Jun Chen is currently a tenured associate professor in the Department of Bioengineering at the University of California, Los Angeles. His research focuses on soft matter innovation for novel bioelectronics and personalized healthcare. He has published two books and 320 journal articles, with 220 of them being corresponding authors in Chemical Reviews (2), Chemical Society Reviews (2), Nature Review Bioengineering (1), Nature Materials (2), Nature Electronics (8), Nature Biomedical Engineering (1), Nature Communications (8), Science Advances (3), Joule (3), Matter (15), Advanced Materials (15), among others. He also filed 14 US patents, including one licensed. With a current h-index of 111, Dr. Chen was identified to be one of the world’s
most influential researchers in the field of Materials Science on the Web of Science. Beyond research, he is an associate editor of Biosensors & Bioelectronics, Med-X, FlexMat, Textiles, and VIEW Medicine, Advisory/Editorial Board Members of Matter, Cell Reports Physical Science, Materials Today, Materials Today Energy, Nano-Micro Letters, Nano Trends, The Innovation, among others. Among his many accolades are the V. M. Watanabe Excellence in Research Award, UCLA Faculty Mentor Award, UCLA Society of Hellman Fellows Award, Georgia Tech Alumni 40 Under 40, Shu Chien Early Career Award, ONR Young Investigator Award, AHA Innovative Project Award, AHA Transformational Project Award, AHA's Second Century Early Faculty Independence Award, NIH UCLA CTSI KL2 Translational Science Award, BBRF Young Investigator Award, Okawa Foundation Research Award, Advanced Materials Rising Star, Materials Today Rising Star Award, ACS Nano Rising Stars Lectureship Award, Chem. Soc. Rev. Emerging Investigator Award, Nano Research Young Innovator Award, ACS PMSE Young Investigator Award, Clarivate Highly Cited Researchers 2019/2020/2021/2022/2023, among others.

Type
Colloquium
Admission
Free
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