Ulsan National Institute of Science and Technology · Physics and Astronomy
Professor Steve Granick's research lab focuses on the fundamental physics and materials science of soft matter, particularly at interfaces and under extreme confinement. Key research directions include the behavior of liquids in nanoconfined geometries, the self-assembly and dynamics of active and Janus particles, and the interfacial properties of macromolecules at solid-liquid interfaces. The lab integrates advanced experimental techniques with theoretical and computational modeling to explore collective phenomena, non-equilibrium dynamics, and emergent behaviors in soft materials.
Figures are computed from collected data and may differ slightly.
When a liquid is confined in a narrow gap (as near a cell membrane, in a lubricated contact between solids, or in a porous medium), new dynamic behavior emerges. The effective shear viscosity is enhanced compared to the bulk, relaxation times are prolonged, and nonlinear responses set in at lower shear rates. These effects are more prominent, the thinner the liquid film. They appear to be the manifestation of collective motions. The flow of liquids under extreme confinement cannot be understood
Janus particles, colloid-sized particles with two regions of different surface chemical composition, possess energetic interactions that depend not only on their separation but also on their orientation. Research on Janus and colloidal particles that are chemically patchy in even more complicated fashion has opened a new chapter in the colloid research field. This article highlights recent progress in both experiment and theory regarding synthesis and self-assembly of Janus particles, and tentat
ADVERTISEMENT RETURN TO ISSUEArticleNEXTFerritin: Its Properties and Significance for Iron Metabolism.S. GranickCite this: Chem. Rev. 1946, 38, 3, 379–403Publication Date (Print):June 1, 1946Publication History Published online1 May 2002Published inissue 1 June 1946https://pubs.acs.org/doi/10.1021/cr60121a001https://doi.org/10.1021/cr60121a001research-articleACS PublicationsRequest reuse permissionsArticle Views902Altmetric-Citations219LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compl
The collective mobility of active matter (self-propelled objects that transduce energy into mechanical work to drive their motion, most commonly through fluids) constitutes a new frontier in science and achievable technology. This review surveys the current status of the research field, what kinds of new scientific problems can be tackled in the short term, and what long-term directions are envisioned. We focus on: (1) attempts to formulate design principles to tailor active particles; (2) attem
Abstract A comprehensive review of ongoing and recommended research directions concerning the structure, dynamics, and interfacial activity of synthetic and naturally occurring macromolecules at the solid–liquid interface is presented. Many new developments stem from the ability to target new size regimes of 1–100 nm. These rapid developments are reviewed critically with respect to chemical synthesis, processing, structural characterization, dynamic processes, and theoretical and computational a
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