Lewis Lab

Prof. Jennifer Lewis, Sc.D. MIT

Wyss Professor

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Contact Information:

Pierce Hall 221

Email: jalewis@seas.harvard.edu

Phone #: 617-496-0233

 

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Lab Manager

Senior Research Scientist

Bok Yeop Ahn

Bok Yeop Ahn

Korea University, PhD
Bok Yeop Ahn received his PhD in Chemical Engineering from Korea University in 2006 and joined the Lewis research group in the University of Illinois at Urbana-Champaign (UIUC) as a postdoctoral researcher. During his Ph.D., he worked for the Korea Research Institute of Chemical Technology (KRICT) in the Advanced Materials Division and focused his researches on the transition metal oxide nanoparticles, sol-gel coatings, and alkyl-modified silica core/shell microcapsules. He moved to Harvard University in 2013 and currently holds the title of Senior Research Scientist in the Lewis Research Group through the Wyss Institute and the School of Engineering and Applied Sciences (SEAS). He focuses his efforts on the development of functional inks and direct-write assembly of printed electronics, 3D microbatteries, and 3D bio-architectures.
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Research Associates

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Helen Chung

University of Illinois at Urbana-Champaign, PhD

Helen got a Ph.D from Univ.of Illinois at Urbana-Champaign in materials science engineering division focused on electronic materials processing and characterization.  Helen worked for various industrial companies like IBM for hard disk drive development, Cypress semiconductor for non-volatile memory development (MRAM), PerkinElmer Bio for x-ray imaging panel development and ASM for next generation 7nm CMOS logic chip development.

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Daniele Foresti

Daniele Foresti

Swiss Federal Institute of Technology, PhD
Society in Science - Branco Weiss Fellow
The inherent limits of the existing printing technologies strongly restrict the range of possible inks (i.e.materials) that can be dispensed, hence the potential applications of such technologies. Could we do better? As a Branco Weiss fellow, I will investigate a new concept of printing mechanism based on ultrasound. By using acoustic forces any ink could be potentially printed on any substrate.
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Benito Román-Manso

Benito Román-Manso

Institute of Ceramics and Glass (CSIC) & Autonomous University in Madrid, PhD
Benito received his PhD degree in 2015 after carrying out studies in SiC ceramics and graphene-ceramic composites in the Institute of Ceramics and Glass (ICV-CSIC) in Madrid. The aim was the enhancement of the physical properties of these ceramic-based materials, fabricated both as bulk and as 3D-printed scaffold structures. In the Lewis group, Benito’s research is centered on the development of novel, 3D-printed ceramics with different functionalities.
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Mark Skylar-Scott

Mark Skylar-Scott

Massachusetts Institute of Technology, PhD
During his PhD, Mark developed a method for rapid 2-D and 3-D laser printing of biomaterials using two photon microscopy. He applied his printer to develop detailed vascular structures, and to direct neural development. At the Lewis Research Group, Mark is developing large-scale vascular networks for tissue and organ printing using direct-ink writing methodologies. He is also interested in combining different 3-D printing methodologies to achieve novel capabilities in the field of additive manufacturing of biological materials.
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Sébastien G. M. Uzel

Sébastien G. M. Uzel

Massachusetts Institute of Technology, PhD
Sebastien received his PhD from the department of Mechanical Engineering at MIT under the supervision of Pr. Roger Kamm. There, he developed microfluidic devices to expose cells to complex and dynamic concentration profiles within a 3D extracellular matrix. In addition, by combining optogenetic technology and microfluidics, Sebastien designed a platform that allowed compartmentalized 3D coculture of lightexcitable motor neurons and muscle cells. In the Lewis Lab, Sebastien's research focuses on utilizing 3D bioprinting to engineer vascularized and functional biological tissues. He is also interested in the development of tools and strategies to enhance the scale and versatility of 3D printing.
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Post-docs

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Natalie Larson

University of California Santa Barbara, PhD

During her PhD, Natalie developed methods to study microstructure evolution in ceramic matrix composites using X-ray computed tomography. In the Lewis Lab, her research is focused on multimaterial 3D printing of structural and functional materials with locally tailored structure and composition.

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Alex Chortos

Alex Chortos

Stanford University, PhD
During his PhD, Alex investigated processes for fabricating intrinsically stretchable transistors and pressure sensors for biomimetic and neuromorphic electronics. In the Lewis Lab, Alex is developing printed electronics for bio-interfacing applications.
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Emily Davidson

Emily Davidson

UC Berkeley, PhD
Emily Davidson received her PhD in Chemical Engineering working with Professor Rachel Segalman. There, she studied the impact of confinement within block copolymer microdomains on the crystallization of conjugated polymers, and examined the role of controlled polymer stiffness on the self-assembly of sequence-controlled block copolymers. In the Lewis Lab, Emily's research focuses on 3-D printing block copolymer and shape-memory polymers to control the local anisotropic optical and mechanical properties in 3-D printed structures.
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Zoey Davidson

University of Pennsylvania, PhD
Zoey received his PhD in soft matter physics at the University of Pennsylvania and then moved to the Max Planck Institute for Intelligent Systems where he developed electrically driven liquid crystal elastomer actuators. In the Clarke and Lewis groups, his research focuses on materials and device design to improve performance and fabrication of electrically driven soft actuators. Using materials and methods such as liquid crystal elastomers and 3D printing, he is creating new actuation mechanisms for soft robotics with an eye on the fundamental physics to better understand these systems. 
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Edward Guzman

University of Colorado Boulder, PhD
During his PhD, Edward synthesized and characterized small-molecule liquid crystals (LCs), studying the structure-property relationships for nanophase segregating groups in polar LC phases. In the Lewis Lab, Edward is working on designing LC elastomer based actuators for applications in soft robotics.
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Dimitri Kokkinis

ETH Zurich, PhD
During his PhD, Dimitri developed materials and processes for the 3D printing of architected materials and studied their mechanical behavior. In the Lewis Lab, his research focuses on multimaterial 3D printing of gradients and composites for soft robotics applications.
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Neil Lin

Neil Lin

Cornell University, PhD
Roche Fellow
During his PhD, Neil studied the flow behavior of soft materials at the microscopic scale using 3D imagebased flow measurements and customized rheometry. In the Lewis Lab, Neil is working on 3D printing of highly vascularized tissues. In particular, he focuses on developing methods and bio-inks creating kidney models that recapitulate human responses.
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Jochen Mueller

ETH Zurich, PhD
My research aims to create materials and structures with novel and outstanding (mechanical) properties. To achieve these properties, I develop new fabrication techniques based on the direct-ink writing process and combine them with computational methods to fully exploit the design space.
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Daniel S. Reynolds

Boston University, Ph.D.

During his Ph.D., Daniel developed 3D in vitro tumor models to study how the tumor microenvironment’s physical properties contribute to cancer progression. At the Lewis Research Group, Daniel’s research focuses on using 3D bioprinting to manufacture vascularized biological tissues for applications in both regenerative medicine and disease modeling.

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Sanlin Robinson

Cornell University, Materials Science & Engineering, PhD

I am interested in manufacturing large-scale, vascularized tissue constructs to enable the translation of our foundational technologies.

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Graduate Students

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Tomoya L. Duenki

ETH Zurich, Biomedical Engineering

I am interested in developing methods to improve current in vitro brain models that could enable better insight into development, function and disorders of the brain. As a visiting graduate student in the Lewis Lab, I am working on the vascularization of human cerebral organoids using 3D printing and genetic engineering approaches.

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Jeffrey Aceves - G1

University of California-Merced, Bioengineering, BS 

I work with the bioprinting team and am interested in scaling up our kidney organoid models to print scalable, vascularized tissues. I also aim to develop improved proximal tubule models for disease modeling and drug screening.

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John Ahrens

John Ahrens - G4

Stanford University, Biomechanical Engineering, BS
I am interested in 3D printing scalable, vascularized tissues that could improve current stem cell derived disease models and regenerative therapies.
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Dunja Al-Nuaimi

ETH Zürich, Molecular Health Sciences, BS
In my research I combine stem cell-derived kidney cells with micro-physiological systems. Thereby, I aim to develop a physiologically relevant model of the proximal tubule for drug-screening and disease modeling.
Nicole Black - G6

Nicole Black - G6

Boston University, Biomedical Engineering, BS
NSF Graduate Research Fellow
I am interested in the relationship between structure and function at the micron-scale in living tissues. My research investigates 3D printed biodegradable elastomeric grafts that can be remodeled into mechanically anisotropic tissues in vitro and in vivo. Currently, I am working with the Massachusetts Eye and Ear Infirmary to design tympanic membrane grafts with tailored motion patterns in response to acoustic stimuli. Eventually, we hope that this technology will improve hearing outcomes following tympanoplasty surgery.
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Leslie Cunningham- Visiting Master's Student

ETH Zurich, Medical Technology
My research focuses on the isolation of specific subpopulations from kidney organoids with the aim to improve disease modelling and drug screening.
Jeremy Huang - G5

Jeremy Huang - G5

University of California at San Diego, Electrical and Computer Engineering, MS
University of California at Berkeley, Electrical Engineering & Computer Science, BS
As a PhD student at Harvard Medical School who is co-advised by Professor Lewis, my work focuses on gene-regulation and cell-lineage decision making in the early mammalian embryo. In collaboration with the Lewis group, I am interested in how maternal in vivo conditions can be recapitulated in vitro.
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Arda Kotikian - G5

Mount Holyoke College, Chemistry & Math, BA
NSF Graduate Research Fellow

I am working on programming 3D shape change in actuators by controlling molecular orientation at the filamentary scale while programming structure at the macroscopic scale via direct ink writing. I am especially interested in developing 3D liquid crystal elastomer actuators for use in soft robotics.

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Katharina T.  Kroll - G3

Katharina T. Kroll - G3

University of Freiburg, Molecular Medicine, MSc
As part of the bioprinting team, I am investigating printing of hierarchical blood vessel systems with complex cellular interactions. Scaling up the bioprinting approach to incorporate biologically relevant geometries and cellular variety could be the next step towards building functional tissues mimicking complexity and organization of tissue physiology.
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Aric Lu -G2

University of Delaware, Electrical Engineering, HBEE

I work with the bioprinting team to develop materials and methods to model human systems in vitro.

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Jalilah  Muhammad - G1

Southern University and A&M College, Chemistry, BS

I am interested in programming embedded 3D printed structures with liquid crystal elastomers as artificial muscles to advance the technology of soft robotics and assistive devices.

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Rodrigo Telles- G2

University of California, Berkeley, Chemical Engineering, BS
I am interested in the fabrication and design of soft active materials with locally tailorable mechanical properties for soft robotics applications.
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Robert Weeks

Robert Weeks- G2

University of Waterloo, Mechanical Engineering, BASc
Research Fellow
The setup and fine tuning of all the different parameters in additive manufacturing often takes much longer than the actual print itself. I am interested in the development of novel additive manufacturing systems with process feedback to decrease setup time, increase printing throughput and optimize print quality.
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Former Group Members (2001 - Present)

Name Year Currently at Thesis
Kimberly Homan Post-doc    
Ryan Truby PhD (2018) MIT  
William Boley Post-doc Boston University  
Teng-Sing Wei PhD (2017)    
Joseph Muth PhD (2017)    
Alexander Valentine Research Fellow    
Sydney Gladman PhD (2016)    
Jordan R. Raney Post-doc    
Thomas Ober Post-doc Haas F1 Team  
Analisa Russo PhD (2014) Electroninks  
James Hardin Post-doc AFRL  
Brett Compton Post-doc University of Tennessee, Knoxville  
David Lorang M.S. (2013) Intel  
Brett Walker PhD (2013) U of I/Electroninks Incorporated Synthesis and patterning of reactive silver inks
Chris Hansen PhD (2011) UMass Lowell Self-healing materials and multinozzle printheads with embedded microvascular networks
Elizabeth Glogowski Post-doc University of Wisconsin, Eau Claire
Willie Wu PhD (2010) Intel Direct Ink Writing of Microvascular Networks
Adam DeConinck M.S. (2010) Los Alamos National Laboratory Fabrication, Dynamics, and Self-Assembly of Anisotropic Colloidal Particles
Sara T. Parker

PhD (2010)

Intel Direct-write assembly of 3D microperiodic scaffolds for tissue engineering applicationsDirect-write assembly of 3D microperiodic scaffolds for tissue engineering applications
Rob F. Shepherd PhD (2010) Cornell University Microfluidic assembly and packing dynamics of colloidal granules
Eric Duoss PhD (2009) LLNL  
Jacinta Conrad Post-doc University of Houston
Jun Yoshikawa PhD (2009) NGK Comb Polymer Architecture and Particle Size Effects on the Behavior of Biphasic Nanoparticle Inks for Direct-Write Assembly
Summer Rhodes PhD (2009) Sandia National Labs Structure, Dynamics and Flow Behavior of Model Biphasic Colloidal Mixtures
Eric Duoss PhD (2009) LLNL Sol-Gel and Nanoparticle Inks for Direct-Write Assembly of Functional Metal Oxide and Metallic Materials
Dan Harris PhD (2008) Intel Patterning Colloidal Films via Evaporative Lithography
Ranjeet Rao PhD (2007) PARC Biphasic Nanoparticl Inks for Direct Write Assembly of 3-D Periodic Structures
Mingjie Xu PhD (2007) Intel Inorganic Hybrids Templated From 3-D Polyelectrolyte Scaffolds Assembled Via Direct Ink Writing
Ketan Bhatt Post-doc    
Angel Chan MD/PhD (2007) Johns Hopkins University Nanoparticle Engineering of Colloidal Suspsension Behavior
Ali Mohraz Post-doc UC Irvine
Mark Roberts M.S. (2005) BP Rheological properties and micro-particle imaging velocimetry of model colloidal fluids and gels
Greg Gratson PhD (2005) General Electric Colloidal and Polyelectrolyte Inks For Direct-Write Assembly of 3D Periodic Structures
Sarah Michna M.S. (2004)   Directed Assembly of 3-D Hydroxyapatite Scaffolds
Glen Kirby PhD (2003) Oak Ridge National Laboratory PAA/PEO Comb Polymer Effects on the Rheological Property Evolution in Concentrated Cement Suspensions
James Smay PhD (2002) Oaklahoma State University Directed Colloidal Assembly and Characterization of PZT-Polymer Composites
Carlos J. Martinez PhD (2002) Purdue University Structure and Property Evolution During Film Formation From Binary Colloidal Suspensions
Valeria Tohver Milam PhD (2002) Georgia Institute of Technology Phase Behavior, Structure, and Properties of Colloidal Microsphere-Nanoparticle Mixtures
Mariusz Twardowski Post-doc MIT
James Gilchrist Post-doc Lehigh University
Mike Bevan Post-doc Johns Hopkins University