Resume

• 2004

  Ph.D.

  Chemical Engineering

• 2000

  B.S.

  Minors in CPS (Colloids

  Polymers

  and Surfaces) and Jazz Performance

  Chemical Engineering

  Tau Beta Pi

  McCabe Society

  Carnegie Steel

• Polymer Physics

  Light Scattering

  Biomaterials

  Polymers

  Fluorescence Microscopy

  Nanomaterials

  Microscopy

  Chemistry

  Nanoparticles

  Rheology

  Microfluidics

  Chemical Engineering

  Neutron Scattering

  Colloids

  Nanotechnology

  Texture Analysis Microscopy: quantifying structure in low-fidelity images of dense fluids

  Develop an image processing method for image enhancement and analysis

  which specifically addresses challenges in quantitative analysis of low-fidelity images

  Texture Analysis Microscopy: quantifying structure in low-fidelity images of dense fluids

  Juntae Kim

  Coarsening and kinetic arrest of colloidal systems undergoing spinodal decomposition (SD) is a conserved motif for forming hierarchical

  bicontinuous structures. Although the thermodynamic origins of SD in colloids are widely known

  the microstructural processes responsible for its coarsening and associated dynamics en route to arrest remain elusive. To better elucidate the underlying large-scale microdynamical processes

  we study a colloidal system with moderate-range attractions which displays characteristic features of arrested SD

  and study its dynamics during coarsening through a combination of differential dynamic microscopy and real-space tracking. By extending recently developed imaging techniques

  we reveal directly that the coarsening arises from collective dynamics of dense domains

  which undergo slow

  intermittent

  and ballistic motion. These collective motions indicate interfacial effects to be the driving force of coarsening. The nature of the gelation enables to control the arrested length scale of coarsening by the depths of quenching into the spinodal regime

  which we demonstrate to provide an effective means to control the elasticity of colloidal gels.

  Microdynamics and arrest of coarsening during spinodal decomposition in thermoreversible colloidal gels

  Matt

  Helgeson

  Schlumberger

  MIT

  University of Delaware

  UC Santa Barbara

  REDA Artificial Lift

  Schlumberger

  UC Santa Barbara

  Assistant Professor

  Santa Barbara

  California Area

  Department of Chemical Engineering

  University of Delaware

  Postdoctoral Associate

  Cambridge

  MA

  MIT

  Associate Professor

  UC Santa Barbara

  DOE Early Career Award

  Department of Energy

  NSF Early Career Award

  National Science Foundation

  Northrup Grumman Excellence in Teaching Award

  Northrup Grumman Foundation

  Unilever Award

  ACS Division of Colloid & Surface Chemistry

  Victor K. LaMer Award

  ACS Division of Colloid & Surface Science