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Micro- and Nano-scale Anisotropic Organic Materials via Self-Organization of Lyotropic Chromonic Liquid Crystals Suk-Wah Tam-Chang and Sean M. Casey University of Nevada, Reno, DMR0405532. Research Goals :

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Micro- and Nano-scale Anisotropic Organic Materials via Self-Organization of Lyotropic Chromonic Liquid CrystalsSuk-Wah Tam-Chang and Sean M. CaseyUniversity of Nevada, Reno,DMR0405532

Research Goals:

1. To further our understanding of the structural factors governing supramolecular interactions, optical properties, and liquid crystalline (LC) properties of ionic aromatic compounds.

2. To design and synthesize long-wavelength and near infrared (NIR) absorbing compounds.

3. To develop novel approaches to the micro- and nano-fabrication of anisotropic (direction-dependent) materials.

(Left and middle) Optical micrographs showing the anisotropic absorption of light by the two overlapping rod-shaped crystals A and B. (Right) Single crystal x-ray diffraction analysis showing the anisotropic orientation of molecules in the crystals.

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Micro- and Nano-scale Anisotropic Organic Materials via Self-Organization of Lyotropic Chromonic Liquid CrystalsSuk-Wah Tam-Chang and Sean M. CaseyUniversity of Nevada, Reno,DMR0405532

Education goals:

1. Introduce to students the basic knowledge and techniques for studying organic materials.

2. Provide research opportunities to 7 graduate and 3 undergraduate students (including underrepresented groups). One graduate student and one undergraduate student graduated in spring 2005.

3. Prepare students for a career that may include organic materials research in industry and improving their access to a teaching career in science.

Broader Impacts on Society:

1. The knowledge we gain from this research could further polarization and display technologies.

2. Colored compounds, long-wavelength dyes and NIR materials have important uses that range from basic science to high technology applications.

3. The development of novel approaches to generating nanopatterns of anisotropic organic materials may offer new opportunities to the rapidly advancing fields of nanoscience and nanotechnology.

Outreach and Dissemination of Results:

1. Presented a science demonstration to 6th grade students in a local school to arouse their interests in science and materials research.

2. One manuscript, one patent application, and two meeting abstracts have resulted.

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