Frechette Group (Fall 2018)

Top row (left to right): Christian, Donglee, Zach, Paul, Tianxu
Bottom row: Hanqi, Nikki, Anushka, Preetika, Yu, Joelle

Principal Investigator

Joelle Frechette – Bio and Short CV

Associate Professor
Chemical and Biomolecular Engineering
Johns Hopkins University
3400 N. Charles St.
Baltimore, MD 21218

Email: jfrechette@jhu.edu
Phone: 410-516-0113
Office: 121 Maryland Hall

Postdoctoral Researchers

Dr. Christian. D. van Engerscvaneng1@jhu.edu
Christian obtained his D.Phil from the University of Oxford (UK) investigating the use of graphene in the Surface Force Apparatus (SFA). Currently his research focuses on developing model aluminum films for the study of surface forces in the SFA; underwater adhesive properties of epoxies with multidentate functionalities built into their molecular structure; and the mechanics of soft materials at length scales where capillary effects start to dominate over the elastic energy.

Graduate Students

Nikki Neibloom – 5th year PhD student – dneiblo1@jhu.edu
The use of nanoemulsions in drug delivery, materials engineering, and consumer products drives our motivation to produce monodisperse droplet systems without the need for external energy. I am interested in understanding the driving forces behind spontaneous emulsions induced by chemical reaction and the role that solid particles and surface active agents can play in tailoring emulsion characteristics.
Degree: B.S. in Biological Engineering from the Massachusetts Institute of Technology, Cambridge, MA

Preetika Karnal – 5th year PhD student – pkarnal1@jhu.edu
Viscoelastic polymers used for adhesion (widely known as Pressure Sensitive Adhesives or PSAs) are ubiquitous. From chemistry to debonding mechanisms, adhesion of acrylic PSAs has been well studied in air. However, real world applications often include a humid or wet environment. We are trying to uncover fundamental mechanisms that play a role in reducing adhesion in wet conditions.
Degree: B. Tech in Chemical Engineering from Indian Institute of Technology, Bombay, India.

Anushka Jha – 3rd year PhD student – ajha5@jhu.edu
Polymer gels are soft materials that are composed of an elastomeric matrix filled with fluid in the form of polymeric chains. The adhesion and deformation behaviour of these materials when they come in contact with various substrates is of great interest in understanding the fundamental physics behind their behaviour. Anushka is interested in decoupling the mechanisms at play such as viscoelasticity and poroelasticity at different scales of observation to design better materials for skin adhesion.
Degree: B. Tech – M. Tech in Chemical Engineering from Indian Institute of Technology, Kanpur, India

Yu Fu – 2nd year PhD student – yfu29@jhu.edu
Hierarchical structures are omnipresent in nature and give biomaterials superior multifunctional properties. However, methods to fabricate these structures are limited. His research mainly focuses on making bio-inspired hierarchical materials, especially mosquito compound eyes, through the assembly of droplets and nanoparticles. Currently he is working on addressing and imaging different microparticles within individual drop/compound lens to get anisotropic materials in external field.
Degree: B.S. in Chemical Engineering from Dalian University of Technology, China

Paul Roberts – 3rd year PhD student – Email: prober28@jhu.edu
Paul works on expanding our experimental capabilities for characterization of soft matter mechanics. He is also developing colorimetric pressure sensing hydrogels.
Degree: B.S. Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD

Zach Lamberty – 2nd year PhD student – Email: zlamber2@jhu.edu
Zach’s research focuses on polymer adhesion in extreme environments. His main project involves using coordinating groups to enhance the adhesion underwater. By using multidentate groups incorporated in the structure of an epoxy polymer, he hopes to improve the water resistance of common adhesives for composite material and medical applications. He is also working on studying the adhesive mechanisms of frog tongue mimics in dynamic conditions as well as the change in electric double layer around protein-antibody pairs.
Degree: B.S. in Engineering, Swarthmore College, Swarthmore, PA.

Junhao Liang – 1st year MSE student – Email: jliang42@jhu.edu
Junhao’s research focuses on polymer adhesion in extreme environments. His main project involves using coordinating groups to enhance the adhesion underwater.
Degree: B.S. in Chemical Engineering, South China University of Technology, China .

Tianjun Tang – 1st year MSE student – Email: jliang42@jhu.edu
Tianjun’s research focuses on developing strategies to produce hierarchical bio-inspired materials.
Degree: B.S. in Chemistry and Molecular Engineering fromEast China Normal University.

Alumni

Postdoctoral Researchers

Donglee Shin (2018) – Google Scholar, Linkedin

Xue Li (2016) – LinkedIn

Georgia Pilkington (2016) – Google Scholar, Linkedin

Mingxiang Luo (2012), Google Scholar, Linkedin

Lorena M. A. Monzon (2008) – Google Scholar

Graduate Students

Gloria (Olivier) Patterson, PhD (2010) – Linkedin

Rohini Gupta, PhD (2013) – Linkedin, Google Scholar

David Broesch, PhD (2014) – Google Scholar, Linkedin

Christian Pick, PhD (2016) – Linkedin

Charles Dhong, PhD (2016) – https://charlesdhong.com/

Yumo Wang, PhD (2017) – Linkedin, Google Scholar

Xiaoqing Hua, PhD (2018) – Linkedin, Google Scholar

Masters Students

Tianxu Huang – Class of 2019

Hanqi Wen – Class of 2019

Leo Feng – Class of 2017

Tianyu Yan – Class of 2016

Max Pinz – Class of 2014

Arianne Sevilla – Class of 2013

Timothy Bowman – Class of 2013

Eunkyong Sohn – Class of 2011

Manuel Balvin – Class of 2010

Frechette Lab – (Summer 2016)

From L to R – Preetika, Yumo, Xiaoqing, Xue, Paul, Nikki, Georgia, Tianya, Joelle, Charles, Brian, Jinwoo and Leo

Undergraduate Students

RJ Hommel – Class of 2018

Brian Ryu – Class of 2017

Christopher Argento – Class of 2016

Aaron Lerner – Class of 2016

Zachary Smolsky – Class of 2016

Eric Ong – Class of 2016

Zachary Bentley – Class of 2015

Alyssa Brann – Class of 2015

Edward Shiang – Class of 2014

Natasha Seelam – Class of 2013

Teno Boone – Class of 2013

Danica Sheth – Class of 2011

Frank Sweeney – Class of 2011

Donghoon Shin – Class of 2010

Miriam Vishniac – Class of 2010

Jonathan Gilbert – Class of 2009

John Bagert – Class of 2008

Anne Gatchell – Class of 2008

Gwendolyn Melnyk – Class of 2008

High School Students

Jeff Braun – Sr. – Baltimore Polytechnic Institute (2007-2008)

Joanne Jeon – Jr. – Garrison Forrest High School (Fall 2008)

Kelly Khare – Baltimore Polytechnic Institute (2014)

Cresangelo Legaspi – Baltimore Polytechnic Institute (2015-2016)

Eisha Gupta – Bryn Mawr School (2017)

Tori Legaspi – Baltimore Polytechnic Institute (2017-2018)