Research Interests

The Kretzschmar group’s research interests are particle surface modification leading to patchy and Janus particles with well-defined but asymmetric surfaces, the field-directed assembly and application of patchy and Janus particles, and nanomaterials as precursors to highly porous electrodes for dye sensitized solar cells. Most recently, my group has ventured into the field of particle-stabilized emulsions with specific focus on studying the position of Janus particles at fluid/fluid interfaces and the dynamics of how they enter such an interface.



  • D. Christie, J. Lombardi, and I. Kretzschmar, Two-Dimensional Array of Silica Particles as a SERS Substrate, J. Phys. Chem. C, 2014, 118, 9114-9118
  • S. Razavi, J. Koplik, and I. Kretzschmar, Molecular Dynamics Simulations: Insight into Molecular Phenomena at Interfaces, Langmuir, 2014, In Press,
  • A. Wang, T. G. Dimiduk, J. Fung, S. Razavi, I.Kretzschmar, K. Chaudhary, and V. N. Manoharan, Using the discrete dipole approximation and holographic microscopy to measure rotational dynamics of non-spherical colloidal particles, J. Quant. Spectrosc. Radiat. Transfer, 2014, 146, 499-509
  • S. Razavi, I. Kretzschmar, J. Koplik, and C. E. Colosqui, Nanoparticles at liquid interfaces: rotational dynamics and angular locking, J. Chem. Phys., 2014, 140, 014904
  • Z. He and I. Kretzschmar, Template-Assisted GLAD: Approach to Single and Multi-patch Patchy Particles with Controlled Patch Shape, Langmuir, 2013, 29, 15755-15761
  • B. Ren and I. Kretzschmar, Viscosity-Dependent Janus Particle Chain Dynamics, Langmuir, 2013, 29, 14779-14786


Job History

  • 2013 - Current : Professor, CCNY
  • 2009 - 2013 : Associate Professor, CCNY
  • 2004 - 2008 : Assistant Professor, CCNY
  • 2002 - 2004 : Postdoctoral Research Associate, Yale
  • 2000 - 2002 : Feodor Lynen Fellow of Alexander von Humboldt Foundation, Harvard
  • 2004 - 1999 : PhD, Technical University, Berlin, Germany