People

Principal Investigator

Geelsu Hwang, Ph.D.


I received B.S. in Chemical Engineering and Ph.D. in Chemical and Biomolecular Engineering from Yonsei University. 

My goal is to introduce new paradigms in oral health research by applying engineering concepts and methods to further advance the knowledge on the pathogenesis of oral diseases. Specifically, my research interest has focused on understanding the pathogenesis of various biofilm-derived oral diseases and developing therapeutic approaches. I have been always fascinated by how the local biophysical/chemical environment modulates microbe-microbe, microbe-surface as well as host-microbe interactions, and how these characteristics influence disease initiation and progress. I propose numerous groundbreaking inventions for the betterment of oral health. 

Postdoctoral Researchers

Dr. Beibei Gao

(Jan 2023-Present)

Ph.D. in Chemical Engineering, University of Virginia

co-advised by Prof. Daeyeon Lee

Dr. Junjira Tanum

(Apr 2023-Present)

Ph.D. in Chemical and Biomolecular Engineering, Yonsei  University, South Korea


Lab Manager/Technician

Dr. Yong Li
MD

Students

Felicity Zhang
(Sep 2023-Present)

Master's program

Class of 2025

Department of Bioengineering

School of Engineering and Applied Science

University of Pennsylvania

Amanda Reisman
(May 2023-Present)

DMD candidate

Class of 2024

School of Dental Medicine

University of Pennsylvania

Madeline Stein
(May 2023-Present)

DMD candidate

Class of 2024

School of Dental Medicine

University of Pennsylvania

Research Intern

Dr. Meghana RV
(Apr 2023-Present)

BDS, Vokkaligara Sangha Dental College and Hospital, India 

Alumni

DMD student
Manuel Acuna
(Jul 2023-Aug 2023)
Class of 2026
School of Dental Medicine
University of Pennsylvania

DMD student
Michelle Joung
(Jul 2023-Aug 2023)
Class of 2026
School of Dental Medicine
University of Pennsylvania

DMD student
Tiffany Min
(Jul 2023-Aug 2023)
Class of 2026
School of Dental Medicine
University of Pennsylvania

DMD student
Kevin Tao
(Jul 2023-Aug 2023)
Class of 2026
School of Dental Medicine
University of Pennsylvania

Graduate student
Claudia Kim
(Jul 2023-Aug 2023)
The Baldwin School, PA

Research Intern
Anna Ye
(Jul 2023-Aug 2023)
Brooklyn Technical High School, NY 

Postdoc
Dr. Minjun Oh
(Aug 2020-May 2023)

Ph.D. in Chemical Engineering, Sungkyunkwan University, South Korea

Visiting professor
Dr. Kyunghee Park
(Sep 2022 - Jan 2023)
Professor
Chonnam National University, Gwangju, South Korea

Graduate student
Monika Ferreira

(Oct 2021-Sep 2022)

​Visiting Ph.D. student

Faculty of Dentistry

Universidade Federal de Pelotas, Brazil

Undergraduate student
Ravikiran Ramjee

(Jul 2021-Aug 2022)

Class of 2024

School of Engineering and Applied Science

University of Pennsylvania

DMD student
Cerjay Lugtu

(Jul 2021-Aug 2022)

DMD candidate

Class of 2024

School of Dental Medicine

University of Pennsylvania

DMD student
Stephanie Dominguez

(Jul 2022-Aug 2022)

​DMD candidate

Class of 2025

School of Dental Medicine

University of Pennsylvania

DMD student
Teny Odaimi

(July 2022-Aug 2022)

​DMD candidate

Class of 2025

School of Dental Medicine

University of Pennsylvania

Undergraduate student

Kevin Tao

(Sep 2021-May 2022)

School of Arts & Sciences

University of Pennsylvania

Undergraduate student

Jeewoo (Tiffany) Lee

(Jun 2021-Aug 2021)

School of Arts & Sciences

University of Pennsylvania

Postdoc

Dr. Hye-Eun Kim

(Oct 2018-Feb 2022)

​Ph.D. in Molecular biology, 

Hiroshima University, Japan

Postdoc

Dr. Atul Dhall

(Sep 2019-Dec 2021)​

Ph.D. in Nanoscale Engineering,  

SUNY Polytechnic Institute, State University of New York, Albany

Visiting professor

Dr. Kirim Kim

(Mar 2021-Dec 2021)

Associate professor

Kyungpook National University, Sangju, South Korea

Graduate student

Bawazir, Marwa Mohammed

(Dec 2019-Aug 2021)

DScD program

School of Dental Medicine

University of Pennsylvania

DMD student

Brett Kim

(Jul 2021-Aug 2021)

DMD candidate

Class of 2024

​School of Dental Medicine

University of Pennsylvania

Undergraduate student

Joseph Heo

(Jun 2020-Aug 2021)

School of Arts & Sciences

University of Pennsylvania

Harvard School of Dentistry

(Class of 2027)

Visiting professor

Dr. Jehwang Ryu

(Feb 2020-Jan 2021)

Associate professor

Chonnam National University,

Gwangju, South Korea

Undergraduate student

Le (Helen) He

(Jun 2020-Aug 2020)

School of Arts & Sciences

University of Pennsylvania

Volunteer

Sherry Zheng

(Jun 2020-Feb 2021)

B.S. in Neuroscience, School of Art & Sciences, University of Pittsburgh

NYU College of Dentistry

(Class of 2025)

Volunteer

Je Choi

(Jan 2020-Mar 2020)

MS in Materials Science and Engineering,
University of Pennsylvania