Ph.D. Chemical Engineering, KU Leuven, Belgium
M.E. Chemical Engineering, Indian Institute of Science, Bangalore, India

Office: NIST Center for Neutron Research; Building 235, B130, Gaithersburg MD 20899
Phone: 301-975-6469

Research interests:
Technologically relevant materials undergo deformation at extreme shear rates in a variety of commercial processes such as spraying, coating, syringe injection, filtration, oil extraction, lubrication, and extrusion. Therefore, characterizing the structure of complex soft materials in dynamic and industrially relevant environments, in particular, under control flow type and at deformation rates up to approximately 106 s−1, is highly relevant and an important area of research. In that perspective, I am interested particularly in characterizing crystallization-driven self-assembled structures, organogels, phase-separating polymer blends and waterborne paints using the flow cell slit rheometer compatible with simultaneous neutron scattering along with dielectric spectroscopy.


Ph.D. in Chemistry, California Institute of Technology
B.S. in Chemistry with a minor in Mathematics, Summa cum Laude, University of Florida

Office: NIST Center for Neutron Research; Building 235, E130.2, Gaithersburg, MD 20899
Phone: 301-975-4170

Research Interests: Using neutron scattering to understand structure formation in multicomponent systems; Developing multifunctional polymer materials to address various challenges, from water purification to wound healing.


Ph.D. in Chemical Engineering, Queen’s University
B.S. in Chemical Engineering, University of Wisconsin-Madison

Office: NIST Center for Neutron Research; Building 235, E110, Gaithersburg MD 20899
Phone: 240-667-6454


Research Interests: Sticky gooey liquids, often called complex fluids, are an integral part of our lives from the plastics in consumer products to the surfactant solutions in pharmaceuticals. Despite their use in everyday life, the physical and flow properties of complex fluids are not yet fully understood. My work focuses on characterization of complex fluids and materials in diverse contexts using durometry [1], rheology [2,3,4,5,6] and transport phenomena [7,8]. Most recently, I have turned my attention toward characterizing the morphology of medically relevant surfactant solutions using scattering techniques. By exploring how these micelle suspensions organize themselves under different conditions, we can improve pharmaceutical product performance and deepen our fundamental understanding of these important fluids.


Ph.D. in Chemical and Biomolecular Engineering, Rice University
B.S. in Chemical Engineering, National Taiwan University

Office: Colburn Lab 047, Newark DE 19716
Phone: 302-831-2957
View Nate’s Publications

Research interests:
Microfluidic Investigation on Stability of Colloidal Suspensions in Viscoelastic Fluids – colloidal products take the form of freshening sprays, detergents, cosmetics, and various other forms. These products, which are encapsulated particles/emulsions, must be delivered properly under flow (e.g. through a high-shear spray nozzle). I intend to use microfluidics to create a well-controlled platform for studying various physicochemical conditions relating to the flow of encapsulated particles/emulsions in viscoelastic fluids.


Ph.D. and M.S. in Chemical Engineering, University of Pennsylvania
B.S. in Chemical Engineering, Rice University

Office: Colburn Lab 019, Newark DE 19716
Phone: 302-831-0741

Research interests: soft matter, directed assembly, liquid crystals, colloids, rheology


Ph.D. Chemical and Biomolecular Engineering, Georgia Institute of Technology, United States,
M.E. Chemical and Biological Engineering, Korea University, Republic of Korea, B.S. Chemical and Biological Engineering, highest honor, Korea University, Republic of Korea

Office: NIST Center for Neutron Research; Building 235, B166, Gaithersburg MD 20899
Phone: 301-975-5660
Research Interests: Elucidating distributions and motions of CO2 and H2O sorbed into porous solids; Combining diffraction and scattering (of X-ray and neutrons) with solid-state NMR, gas sorption, and rheology for understanding structure-property relationships


Ph.D. Chemistry, University of Hull
MChem, Chemistry with Nanotechnology, University of Hull

Office: Colburn Lab 047, Newark DE 19716
Phone: 302-831-2957


Ph.D. in Chemical Engineering, University of Washington
B.S. in Chemical Engineering, Nanjing University of Technology

Office: NIST Center for Neutron Research; Building 235, E110, Gaithersburg MD 20899
Phone: 301-975-6706

Research Interests: porous materials, nano-confinement, colloidal science, polymer physics, organic electronics

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