People

Graduate Students

Jaehyun Cho
Education:
University of Iowa
B.S. in Chemical Engineering - 2012
Seoul National University
M.S. in Chemical Engineering - 2015

Bio:
During his Master’s degree at SNU, he was supervised by Dr. Jae Young Jho and studied the relationship between polymer structure and properties. He dealt with many different kinds of thermoplastics, which are mechanically superior engineering plastics. After his M.S. degree, he joined the Korea Institute of Science Technology, where he spent several years developing carbon fiber-based composite materials and worked on manipulating the interfaces of the polymer matrix and carbon fibers. He is currently a Ph.D. student in the Chemical Engineering department at Georgia Tech, focusing on developing new types of polymers that are mechanically resilient, and recyclable or depolymerizable under the Multidisciplinary University Research Initiative (MURI) project.

Contact: jcho361 AT gatech.edu

Mona Amrihesari
Education:
Baha'i Institute for Higher Education (BIHE)
BS in Applied Chemistry - 2016

Bio:
Mona graduated from BIHE despite all the limitations that she faced as a Baha'i student in Iran. As an undergraduate, Mona spent her internship working with an analytical lab in the industry. She did her bachelor thesis on the study of marine corrosion, advised by Dr. Shiva Farabi. She joined the Recyclable or Depolymerizable Study with the Multidisciplinary University Research Initiative (MURI) project, focusing on polymer solubility measurements.

Contact: mona.amrihesari AT gatech.edu

Haley Carroll
Education:
The University of Southern Mississippi
B.S. in Polymer Science and Engineering – 2021
Minor: Chemistry

Bio:
During her time at Southern Miss, Haley spent all four years in Dr. Yoan Simon’s research lab covering a range of projects including mechanochemistry for self-healing applications, to hydrogel synthesis for targeting monothiols in cancer cells. The largest project, and topic of her Honors College thesis was, “Utilizing polyisobutylene oxygen barrier properties to enhance triplet-triplet annihilation based upconversion in thermoplastic elastomers.” Haley is currently a Ph.D. student in the School of Materials Science and Engineering and a GAANN fellow. Her research for Dr. Brettmann consists of electrospinning, a processing method that produces ultrafine polymer fibers and how rheology of the electrospun solutions can predict the quality of the subsequent fibers.

Contact: hcarroll30 AT gatech.edu

Alexa Dobbs
Education:
Fort Lewis College
B.S. Chemistry - 2019
Minor: Mathematics
Georgia Institute of Technology
M.S. Chemical and Biomolecular Engineering - 2021

Bio:
Alexa joined the Brettmann lab in 2021 to research the relationships between formulation factors and material properties in high solids suspensions, such as propellants. Previously, she had completed a thesis-based M.S. with Professor Kohl at Georgia Tech, which focused on developing catalyst slurry formulations for improved durability in anion exchange electrolyzers. She is traditionally trained as an analytical chemist and completed 3 years of chemistry research at Fort Lewis College with Dr. Cole as an undergrad.

Contact: adobbs8 AT gatech.edu

Shiqi Wei
Education:
Donghua University
B.S. Material Science and Engineering - 2020
University of Illinois Urbana-Champaign
M.S. Bioengineering - 2021

Bio:
During her undergraduate degree, Shiqi worked on the preparation and modification of nano-silicon as fillers for dental composites. During her time at UIUC, she performed research under Prof. Jianjun Cheng to study the synthesis and characterization of polypeptides as well as the stability of N-carboxyanhydride (NCA) monomers for polypeptides. She is currently a Ph.D. student in the School of Materials Science and Engineering. She spent her first year in Prof. Zhiqun Lin's lab working on the synthesis of cellulose-based nanoreactor via ATRP. Her current research in the Brettmann lab focuses on the influence of particle-polymer interactions on electrospinning ultrafine fibers.

Contact: swei86 AT gatech.edu

Harsh Kumar Verma
Education:
Pandit Deendayal Energy University (PDEU)
B.Tech. in Petroleum Engineering (2022)

Georgia Institute of Technology
M.S. in Materials Science and Engineering (2024)

Bio:
As an undergrad, Harsh studied energy sustainability through the development of unconventional natural gas resources such as shale gas and gas hydrates, along with working on polymer injection techniques for Enhanced Oil Recovery (EOR). His master's work in the Brettmann Lab focused on sustainability in electronics, where he developed biodegradable acoustic sensors based on triboelectric nanogenerators. Currently, as a PhD student and an RBI fellow, he is working with various polyelectrolyte complexes and incorporating them into cellulose fibers and nanofibers to enhance the water drainage of pulp in the industrial paper manufacturing process.

Contact: hverma32 AT gatech.edu

Steven Emad Renfroe
Education:
University of Missouri-Columbia
B.S. in Chemical Engineering – 2023
Minor: Mathematics

Bio:
During his time at MU, Emad researched with Dr. Justin Walensky and Dr. Yangchuan Xing. In the Walensky lab, Emad explored the synthesis and reactivity of dinuclear coinage metal amidinate complexes. Then in the Xing lab, he explored the synthesis and characterization of metal oxide coatings on silicon nanoparticles with the goal of developing a more stable silicon-based lithium-ion battery anode. Throughout these experiences, he was on several research fellowships including one through the Missouri Center for Advanced Power Systems and one through the MU Honors College. Emad is currently a Ph.D. student in the School of Chemical and Biomolecular Engineering at Georgia Tech. His research in the Brettmann lab will focus on powder engineering using resonant acoustic mixing (RAM).

Contact: srenfroe3 AT gatech.edu

Matteo Palesati
Education:
Sapienza - Università degli Studi di Roma
B.S. in Mechanical Engineering – 2020
Georgia Institute of Technology
M.S. in Mechanical Engineering – 2023

Bio:
Matteo received his B.S. in Mechanical Engineering writing a thesis on properties and possible applications of recycled carbon fibers. Deciding to pursue a M.S., he then joined the double degree program between Sapienza and Georgia Tech. In 2023 he graduated at Georgia Tech presenting his work on quantitative models for hydrogel swelling equilibrium. Matteo is currently a PhD student in Materials Science and Engineering at Georgia Tech. Co-advised by Dr. Natalie Stingelin, he investigates possible new methods to enhance chemically upcycling of multilayer plastics, focusing on adhesive dissolution at buried interfaces.

Contact: mpalesati3 AT gatech.edu

Preksha Vichare
Education:
Mumbai University
B.E. in Chemical Engineering- 2018
Georgia Institute of Technology
M.S. in Materials Science and Engineering- 2023

Bio:
During her undergraduate, Preksha wrote her thesis on studying the mechanical properties of polymers using nanoindentation technique. After her B.E. degree, she worked as a patent associate, investigating patents in the chemical and semiconductor industry. She then started her M.S. at Georgia Tech, where her research focused on solid-state depolymerization of polymer composites using variable frequency microwave. Currently, Preksha is a Ph.D. student in the School of Materials Science and Engineering and an RBI fellow. Her research mainly aims to solve the re-wetting problem in the press section process of the paper-making industry.

Contact: pvichare6 AT gatech.edu

Laurel Hilger
Education:
University of Nebraska-Lincoln
B.S. in Chemical Engineering – 2023 | B.S. in Computer Science - 2023
Indian Hills Community College
A.A. – 2018 | A.A.S. in Computer Software Development – 2019

Bio:
As an undergrad at the University of Nebraska-Lincoln, Laurel spent 2 ½ years in Dr. Mona Bavarian’s lab researching textile-based supercapacitors (TSCs) made with MXenes and conductive polymers, which led to two publications. For her contribution, Laurel developed equivalent circuit models for TSC testing, performed life cycle analysis of the TSCs to determine cradle-to-grave ecological effects, devised procedures for oxidative chemical vapor deposition of conductive polymers onto fibers, and studied the long-term effects of wear and deformation on the electrochemical properties of the TSCs. Laurel is a Ph.D. student in the Materials Science and Engineering department. Her research in the Brettmann lab focuses on the rheology and 3D printing of graded dielectric inks using a real-time active mixing process.

Contact: lhilger3 AT gatech.edu

Undergraduate Students

Gabriel Almeida
School of Chemical and Biomolecular Engineering (2024)

Mitch Messer
School of Materials Science and Engineering (2025)

Jessica Keith
School of Chemical and Biomolecular Engineering (2025)

Nora O'Kelly
School of Materials Science and Engineering (2025)

Christine Kim
School of Chemical and Biomolecular Engineering (2026)

Mallika Digavalli
School of Chemical and Biomolecular Engineering (2026)

Carmella Dunn
School of Chemical and Biomolecular Engineering (2026)

Kaitlyn Rajkumar
Department of Chemistry (2026)

Gabriella Osorio-Palo
School of Materials Science and Engineering (2026)

Raul Olmedo
School of Chemical and Biomolecular Engineering (2026)

Phi Cai
School of Materials Science and Engineering (2027)

Stephanie Li
School of Materials Science and Engineering (2027)

Eleanor Radlinski
School of Materials Science and Engineering (2027)

Fiona Peterson
Wheeler High School (2025)

Former Members

Graduate Students and Postdoctoral researcher

Naomi Deneke
2022 - 2024
Postdoctoral researcher

Alexandra Marnot
2019 - 2024
Ph.D. in CHBE

Jonathan Cotler
2019 - 2022
Masters in ChBE

Dr. Elena Ewaldz
2017 - 2022
Ph.D. in MSE

Dr. Nasreen Khan
2017 - 2022
Ph.D. in MSE

Dr. Manali Banerjee
2016 - 2021
Ph.D. in MSE

Hannah Woods
2017 - 2019
Masters in MSE

Undergraduate students

Grace Willows 2017 - 2019
joined Boston Scientific; 1st place MSE poster session 2018

Mofolu Popoola 2018 - 2019
Univ. Georgia, PhD program

Carly Travis 2018 - 2019
University of Washington, MSE Master's program; 1st place SPN poster session 2019

Riddhi Patel 2017 - 2020

joined Diageo; 2nd place MSE poster session 2018; PURA award Fall 2018

Sisira Saraswatula 2018 - 2020

joined QGenda; PURA award Summer 2018

Nadia Zaragoza 2018 - 2020
Massachusetts Institute of Technology, MSE PhD program; PURA award Spring 2020; NSF GRFP 2021

Anna Williams 2019 - 2020
joined Ethicon

Morgan McLeroy 2020 - 2021
University of Colorado Boulder, MSE PhD program

Eli Winterscheidt 2021
MSE Scholar

Ellenrae Dixon 2022-2024

Joanna Thomas 2021-2022

Jillian Armstrong 2021-2022
joined ExxonMobile

Alexis Renfroe 2021-2022

Thomas Thwaite 2022

Tyra Jones 2022

Yvonne Walker 2023
joined Vantage Specialty Chemicals

Amari Murry 2021-2023
SNL-CINT 2022

Heejoon Jeon 2022-2023

Claire Joo 2023

Sofia Moreno 2023
2023 AIChE Annual Student Conference Poster

Irene Dumitriu 2023
MSE Scholar

Julie Bondy 2023
SURE Scholar

Gabrielle Keith 2023
Project Engages Scholar

Reina Funatomi 2023
Nakatani Research Scholars

Miranda Cao 2023

 

Elizabeth Sinner 2018
ATL Tax Group

Joshua Randrup 2018 - 2019
PURA award Summer 2019

Juliette Carpet 2019
joined Solvay; MSE Scholar

Mitchell Ketcham 2018 - 2019
joined Area-I

Zachary Adams 2018 - 2021
Massachusetts Institute of Technology, MSE PhD program

Ian Campbell 2018 - 2020
University of Washington, MSE PhD program; PURA travel award 2019; NSF GRFP 2021

Heather Witherow 2020
joined WestRock

Dong June Jang 2018 - 2021
Cornell, PhD program

Christina Sun 2020 - 2021
PURA Fall 2020

Petra von Grey 2020 - 2021

Madison Miller 2021
Vanderbilt University, MSE PhD program

Samuel West 2021
University of Texas at Austin, ChE PhD program

Lexi Renfroe 2021-2022

Lena Konzelman 2021-2022
PURA Fall 2022; Poster Presentation at ASME MSEC

Daniel Collins 2021-2022
joined Proctor and Gamble

Jami Miliken 2023

Qihong Cao 2023

Julia Fleischman 2023

Rachel Hobby 2023

Kolin Kurey 2023

Daemon Le 2023

Yoonkyeong (Alicia) Park 2023

Samuel Durbin, 2023

Caira McClairen 2024

Marissa Moore 2024

Ellie Radlinski 2024