Argonne National Laboratory

Colloquium Series

The Center for Nanoscale Materials holds a regular biweekly colloquium on alternate Wednesdays at 11:00 a.m. in Bldg. 440, Room A105/106. The goal of the series is to provide a forum for topical multidisciplinary talks in areas of interest to the CNM and also to offer a mechanism for fostering interactions with potential facility users.

Committee Members:

  • Xiao-Min Lin (Chair)
  • Pierre Darancet
  • Ralu Divan
  • Xuedan Ma
  • Elena Rozhkova
  • Jianguo Wen
Date Title
Apr. 18, 2018

Theory and Practice of Nanoparticle Self AssemblyNicholas A. Kotov, University of Michigan.  Host:  Gleiciani de Queiros Silveira

Inorganic nanoparticles (NPs) have the ability to self-organize into variety of structures with sophisticated and dynamic geometries. Analysis of experimental data for different types of NPs indicates a general trend of self-assembly under a wider range of conditions and having broader structural variability than self-assembling units from organic matter. Remarkably, the internal organization of self-assembled NP systems rival in complexity to those found in biology which reflects the biomimetic behavior of nanoscale inorganic matter. In this talk, the following questions will be addressed:

(a) What are the differences and similarities of NP self-organization compared with similar phenomena involving organic and biological building blocks?
(b) What are the forces and related theoretical assumptions essential for NP interactions?
(c) What is the significance of NP self-assembly for understanding emergence of life?
(d) What are the technological opportunities of NP self-organization?
Self-organization of chiral nanostructures will illustrate the importance of subtle anisotropic effects stemming from collective behavior of NPs and non-additivity of their interactions. The fundamental significance of studies in this area from this and other groups will be discussed in relation to the origin of homochirality on Earth and spontaneous compartmentalization (protocells). The practicality of self-organization of nanoparticles will be discussed in relation to charge storage technologies, DNA/protein biosensing, chiral catalysis, and combating antibiotic resistant bacteria and other infections including rapidly mutating viruses.
 
References:
1. Tang, Z.; Kotov, N. A.; Giersig, M. Spontaneous organization of single CdTe nanoparticles into luminescent nanowires, Science, 2002, 297, 237.
2. Kotov, N. A. Inorganic Nanoparticles as Protein Mimics, Science, 2010, 330(6001), 188–189.
3. Srivastava S.; et al., Light-Controlled Self-Assembly of Semiconductor Nanoparticles into Twisted Ribbons, Science, 2010, 327, 1355.
4. Yeom, J.; et al., Chiral Templating of Self-Assembling Nanostructures by Circularly Polarized Light, Nature Mater. 2015, 14, 66.
5. Batista-Silvera, C.; Larson, R.; Kotov, N. A. Non-Additivity of Nanoparticle Interactions, Science, 2015, DOI: 10.1126/science.1242477.
6. L.Liu, et al. Low-Current Field-Assisted Assembly of Copper Nanoparticles for Current Collectors, Faraday Disc. 2015, 181, 383-401.
7. M. Yang, H. Chan, G. Zhao, J.H. Bahng, P. Zhang, P. Král, N.A. Kotov, Self-Assembly of Nanoparticles into Biomimetic Capsid-Like Nanoshells, Nature Chemistry, 2016, 9, 287–294.
8. J. H. Bahng, B. Yeom, Y. Wang, S. O. Tung, N.A. Kotov, Anomalous Dispersions of Hedgehog Particles, Nature, 2015, 517, 596–599.
9. W. Feng, J.-Y. Kim, et al. Assembly of Mesoscale Helices with Near Unity Enantiomeric Excess and Light-Matter Interactions for Chiral Semiconductors, Science Advances, 2017, 3(3), e1601159.
10. S. Jiang, et al. Chiral Ceramic Nanoparticles of Tungsten Oxide and Peptide Catalysis, Journal of the American Chemical Society, 2017, 139 (39), 13701–13712

May 2, 2018 David S. Ginger, University of Washington, Host: Pierre Darancet
May 16, 2018 Gong Gu, University of Tennessee, Host: Lifen Wang
May 30, 2018 Yugang Sun, Temple University.  Host:  Gary Wiederrecht
Jun. 13, 2018 Mike Arnold, University of Wisconsin, Host: Nathan Guisinger
Jun. 27, 2018 James Alexander Liddle, National Institute of  Standards and Technology (NIST), Host: Ralu Divan
Jul. 11, 2018 Humphrey Maris, Brown University, Host:  Dafei Jin
Jul. 25, 2018 Quanxi Jia, State University of New York (SUNY), Host:  Liliana Stan
Aug. 8, 2018  Itai Cohens, Cornell University, Host: Xiao-Min Lin
Sep. 5, 2018 Dongling Ma, Institut National de la Recherche Scientifiue (INRS), Host: Gary Wiederrecht
Sep. 19, 2018  
Oct. 3, 2018 Haiyan Wang, Purdue University, Host: Jie (Joyce) Wang
Oct. 17, 2018 Stephan Lany, National Renewable Energy Laboratory (NREL), Host: Maria Chan
Oct. 31, 2018 Haiyan Wang, Purdue University, Host: Joyce (Jie) Wang
Nov. 14, 2018

Stephen G. Sligar, University of Illinois, Host: Elena Rozhkova

Dec. 12, 2018 P. James Schuck, Columbia University, Host: Pierre Darancet
Jan. 16, 2019 Juejun Hu, Massachusetts Institute of Technology (MIT), Host: Peijun Guo