Chang-Hwan Choi

{{Short description|American engineer and professor}}

{{distinguish|Choi Chang-hwan}}

{{Infobox scientist

| name = Chang-Hwan Choi

| image =

| caption =

| birth_place = South Korea

| nationality = American

| fields = Mechanical Engineering, Nanotechnology, Surface Engineering

| workplaces = Stevens Institute of Technology

| alma_mater =

| doctoral_advisor =

| known_for = Nanofabrication, Microfluidics/Nanofluidics, Surface Engineering

| awards =

  • Humboldt Research Fellowship (2016)
  • Research grants from NSF, ONR, DARPA
  • | website = [https://www.stevens.edu/profile/cchoi Official Profile]

    }}

    Chang-Hwan Choi is an American and South Korean engineer and professor specializing in nanofabrication, micro‐ and Nanofluidics, and surface engineering. He is currently a professor in the Department of Mechanical Engineering at Stevens Institute of Technology in Hoboken, New Jersey.{{Cite web |last=Darmstadt |first=Technical University of |title=Professor Dr. Chang-Hwan Choi |url=https://www.tu-darmstadt.de/forschen/international_forschen/humboldt_stipendiaten/artikel_details_de_en_156096.en.jsp |access-date=2025-04-06 |website=TU Darmstadt |language=en}}{{Cite web |title=Prof. Dr. Chang-Hwan Choi |url=https://www.humboldt-foundation.de/en/connect/explore-the-humboldt-network/singleview/1164097/prof-dr-chang-hwan-choi |access-date=2025-04-06 |website=www.humboldt-foundation.de |language=en}} His research focuses on developing micro/nanomanufacturing techniques and multifunctional surface technologies for applications in fluid mechanics, Additive manufacturing, Corrosion protection, and Biomaterials.{{Cite journal |last=Gewin |first=Virginia |date= 2010|title=Chang-Hwan Choi |url=https://www.nature.com/articles/nj7296-385a |journal=Nature |language=en |volume=465 |issue=7296 |pages=385 |doi=10.1038/nj7296-385a |issn=1476-4687}}{{Cite journal |last1=Xi |first1=Yiwen |last2=Sharma |first2=Prashant Kumar |last3=Kaper |first3=Hans Jan |last4=Choi |first4=Chang-Hwan |date=2021-09-08 |title=Tribological Properties of Micropored Poly(2-hydroxyethyl methacrylate) Hydrogels in a Biomimetic Aqueous Environment |url=https://pubs.acs.org/doi/full/10.1021/acsami.1c13718 |journal=ACS Applied Materials & Interfaces |volume=13 |issue=35 |pages=41473–41484 |doi=10.1021/acsami.1c13718 |pmid=34449208 |issn=1944-8244}}

    Early life and education

    Choi completed his early studies in South Korea, earning his Bachelor of Science and a Master of Science degree in Aerospace Engineering from Seoul National University. He later pursued graduate studies in the United States, obtaining a second Master’s degree in Engineering—with a focus on fluid, thermal, and chemical processes—from Brown University, followed by a PhD in Mechanical Engineering from the University of California, Los Angeles (UCLA) in 2006.{{Cite web |title=Dr Chang-Hwan Choi |url=https://www.azonano.com/experts.aspx?iExpertID=154 |access-date=2025-04-01 |website=AZoNano |language=en}}

    Academic career

    Since joining Stevens Institute of Technology in 2007, Choi has held various academic positions—from Assistant professor to Associate professor, and now as a full Professor.{{Cite web |date=2021-01-21 |title=Nothing is Random: Stevens Professor Nano-Engineers Designs Inspired by Nature |url=https://www.stevens.edu/news/nothing-random-stevens-professor-nano-engineers-designs-inspired-nature |access-date=2025-04-01 |website=Stevens Institute of Technology |language=en}}{{Cite web |title=Chang-Hwan Choi |url=https://www.stevens.edu/profile/cchoi |access-date=2025-04-01 |website=Stevens Institute of Technology |language=en}} At Stevens, Choi is recognized for both his research contributions and his dedication to mentoring students in interdisciplinary projects that bridge classical mechanical engineering with emerging fields such as additive manufacturing and nanofluidics.{{Cite web |last=Darmstadt |first=Technical University of |title=Professor Dr. Chang-Hwan Choi |url=https://www.tu-darmstadt.de/forschen/international_forschen/humboldt_stipendiaten/artikel_details_de_en_156096.en.jsp |access-date=2025-04-01 |website=TU Darmstadt |language=en}} His work is characterized by inspiration from natural structures—such as the micro- and nanoscale features found on lotus leaves and insect wings—to design surfaces with improved functionalities.{{Cite news |last=Miller |first=Katrina |date=2024-02-22 |title=Dirty Ice May Be Ugly, but It Has One Advantage |url=https://www.nytimes.com/2024/02/22/science/ice-removal-contaminants.html |access-date=2025-04-01 |work=The New York Times |language=en-US |issn=0362-4331}}

    Research and contributions

    Choi’s research encompasses a broad spectrum of topics, including:

    • Nanofabrication and Surface Engineering: Development of scalable techniques for creating well-ordered, large-area nanostructured surfaces that reduce friction, enhance corrosion resistance, and impart antimicrobial properties.{{Cite web |date=2023-07-24 |title=Professor - Prof. Chang-Hwan Choi (Stevens Institute of Technology) |url=https://mse.kaist.ac.kr/index.php?mid=mse_seminar_en&document_srl=384569 |access-date=2025-04-01 |website=mse.kaist.ac.kr |language=ko}}
    • Micro/Nanofluidics: Investigation of fluid dynamics at the micro- and nanoscale with applications ranging from energy harvesting (e.g., streaming current in nanofluidic channels) to drag reduction and anti-icing surfaces.{{Cite web |date=2021-11-01 |title=How Stevens Is Supporting the Pivot to Green Energy and Carbon Reduction |url=https://www.stevens.edu/news/stevens-biden-infrastructure-wind-farms-power-electric-vehicles-batteries |access-date=2025-04-01 |website=Stevens Institute of Technology |language=en}}
    • Additive Manufacturing: Exploration of 3D metal printing processes, including the development of new metal alloys and surface modifications to improve anti-corrosive properties.{{Cite web |title=A step forward in techniques for the arrangement of nanowires |url=https://www.nanowerk.com/news/newsid=20301.php |access-date=2025-04-01 |website=www.nanowerk.com}}

    His interdisciplinary approach has resulted in over 100 peer-reviewed publications, several patents, and high-impact research grants from agencies including the National Science Foundation (NSF), North American Space Agency (NASA), the Office of Naval Research (ONR), and DARPA.{{Cite web |date=2018-07-11 |title=How One Stevens Researcher Combats Drag with Nanotech |url=https://www.stevens.edu/news/how-one-stevens-researcher-combats-drag-nanotech |access-date=2025-04-01 |website=Stevens Institute of Technology |language=en}}{{Cite web |title=Chang Hwan Choi - Stevens Institute of Technology - AD Scientifi - 2025 |url=https://www.adscientificindex.com/scientist/chang-hwan-choi/1671620 |access-date=2025-04-01 |website=www.adscientificindex.com}}

    Awards and honors

    Throughout his career, Choi has received several notable awards and fellowships, including:

    • Humboldt Research Fellowship (2016){{Cite web |title=Prof. Dr. Chang-Hwan Choi |url=https://www.humboldt-foundation.de/en/connect/explore-the-humboldt-network/singleview/1164097/prof-dr-chang-hwan-choi |access-date=2025-04-01 |website=www.humboldt-foundation.de |language=en}}
    • Multiple awards and research grants from the NSF and ONR[https://www.onr.navy.mil/education-outreach/sponsored-research/yip/2010-young-investigator-recipients 2010-young-investigator-recipients]
    • Recognition for teaching and research excellence at Stevens Institute of Technology

    Selected publications

    His work covers topics such as surface wettability, drag reduction on superhydrophobic surfaces, and the integration of nanostructures into additive manufacturing processes.{{Cite web |last= |first= |date=2011-02-23 |title=Nanowire research at Stevens makes cover of Applied Physics Letters |url=https://www.rdworldonline.com/nanowire-research-at-stevens-makes-cover-of-applied-physics-letters/ |access-date=2025-04-01 |website=Research & Development World |language=en-US}}{{Cite web |title=Patents Assigned to Trustees of Stevens Institute of Technology - Justia Patents Search |url=https://patents.justia.com/assignee/trustees-of-stevens-institute-of-technology |access-date=2025-04-01 |website=patents.justia.com}}{{Cite web |title=Ice Adhesion |url=https://www.thenile.co.nz/books/chang-hwan-choi/ice-adhesion/9781119640370?srsltid=AfmBOoqCgyojkRXa-4xQuh0_5jdGo2fmEk_Gd69C5uviMibwkGhXwjDh |access-date=2025-04-01 |website=The Nile |language=en}} One representative publication is his research on "Large Slip of Aqueous Liquid Flow over a Nanoengineered Superhydrophobic Surface," which has influenced subsequent studies in the field.{{Cite web |title=Nanotechnology Now - Press Release: Dr. Chang-Hwan Choi Honored with Prestigious Young Investigator Award |url=https://www.nanotech-now.com/news.cgi?story_id=37676 |access-date=2025-04-01 |website=www.nanotech-now.com |language=en}}{{Cite web |last=jinjookim01 |date=2023-07-18 |title=[Seminar] "Rougher is More Slippery: Nature-Inspired Surface Engineering " / Professor Chang-Hwan Choi (Stevens Institute of T |url=https://me.snu.ac.kr/%EC%84%B8%EB%AF%B8%EB%82%98-%EB%B0%8F-%ED%96%89%EC%82%AC/document/13461/?pageid=24 |access-date=2025-04-01 |website=서울대학교 기계공학부 |language=ko-KR}}

    References