Hyo-Jick Choi, PhD

About

Dr. Hyo-Jick Choi received his B.S. and M.S. degrees in Ceramic Engineering from Yonsei University, Korea. He pursued his Ph.D. studies in Biomedical Engineering at UCLA (2002–2006) and the University of Cincinnati (2006–2007) under the supervision of Dr. Carlo Montemagno, followed by postdoctoral research at the Georgia Institute of Technology in the laboratory of Dr. Mark Prausnitz. Dr. Choi has made influential scientific contributions in public safety and global health through the development of preparatory technologies for pandemic and epidemic disease prevention, cold chain-free and long-term stable solid oral vaccines, antimicrobial materials effective against food-borne, air-borne, water-borne, and hospital-acquired infections, as well as colorimetric gas sensors for environmental monitoring. His expertise in integrative and translational technologies has led to successful commercialization outcomes, including the establishment of a start-up company based on his research innovations. He currently serves on the Editorial Board of Scientific Reports and is the President of the Association of Korean-Canadian Scientists and Engineers (AKCSE), where he leads initiatives that advance Canada’s international research collaboration and innovation partnerships.

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Research

Dr. Hyo-Jick Choi’s research integrates materials science, biomedical engineering, device fabrication, and polymer chemistry to address global challenges in health, safety, and the environment. His group develops antimicrobial/sterilization materials for advanced air filtration and personal/public protection (face mask, HEPA filter, disinfectant, self-sanitizing surface), as well as cold chain-free, long-term stable solid oral vaccine/pharmaceutical formulations that improve accessibility in global health. In parallel, his team designs colorimetric gas sensor technologies capable of detecting key industrial and environmental gases such as H₂, CO₂, CO, H₂S, NH₃, and CH₄. These sensors are applicable to environmental monitoring, energy systems, and carbon capture, utilization, and storage (CCUS), contributing to cleaner and safer industrial operations. Dr. Choi’s research philosophy is grounded in the belief that the foundation of any new technology must rest on strong scientific principles. From the earliest stages of experimental design, his research is guided by the dual objective of achieving both academic excellence and practical applicability. Each project is conceived with a clear vision toward real-world implementation, ensuring that scientific discoveries are not only intellectually rigorous but also capable of evolving into sustainable technologies that enhance public health, environmental safety, and societal resilience.

MAT E 661 - Structure and Characterization of Materials

Basic symmetry elements and operations, crystallographic point groups and space groups, application of symmetry in materials analysis. Fundamentals of crystal chemistry, transformations, defects in metals and ionic crystals, interactions between point defects and interfaces. Reciprocal lattice, Brillouin zones, construction of Fermi surfaces, theory of diffraction. Fundamental principles of electron scattering, production and detection of x-rays, diffraction methods, application to crystal structure determination, chemical analysis x-ray spectrometry.

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Browse more courses taught by Hyo-Jick Choi

S. Han, E. Oh, E. Keltie, J.S. Kim, Hyo-Jick Choi*

ACS Accounts of Materials Research. 2022 January; 3 (3):297–308 10.1021/accountsmr.1c00188

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S. Kumaran, E. Oh, S. Han, H.-J. Choi*

Nano Letters. 2021 April; 21 (12):5422–5429 10.1021/acs.nanolett.1c00525

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I. Rubino, S. Han, E. Oh, S. Kumaran, M. Lawson, Y.-J. Jung, K.-H. Kim, N. Bhatnagar, S.-H. Lee, H.-J. Kang, D.-H. Lee, K.-B. Chu, S.-M. Kang, F.-S. Quan*, H.-J. Choi*

ACS Applied Materials & Interfaces. 2021 April; 13 (14):16084–16096 10.1021/acsami.1c01837

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I. Rubino, H. –J. Choi*

Trends in Biotechnology. 2017 July; 35 (10):907–910 10.1016/j.tibtech.2017.06.005

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E. Oh, S.J. Choi, S. Han, K.H. Lee*, H.-J. Choi*

ACS Nano. 0223 August; 17 (18):17811–17825 10.1021/acsnano.3c03315