APS March Meeting 2012: Feb. 27—Mar. 2, Boston, MA

1. Molecular Aggregation in Disodium Cromoglycate, G. Singh, D. M. Agra-Kooijman, P. J. Collings, and S. Kumar, Oral Presentation.

2. Studies on  Sunset Yellow Chromonic Liquid Crystals by Polarized Raman and X-ray Scattering, M. Srivinasarao, X. Yao, J.-O. Park, L. Joshi, S-W. Kang, D. M. Agra-Kooijman and S. Kumar, Oral Presentation.

3. Nanoscale Positional Order Correlations: Swarms, Cybotactic Groups, Clusters and Pretransitional Fluctuations in Liquid Crystals, S. Kumar, B. Acharya and D. M. Agra-Kooijman, Oral Presentation.

4. Submolecular Organization of de Vries Smectics with Tuned Frustration between SmA- and SmC- Promoting Elements, D. M. Agra-Kooijman, S. Dey, Q. Song, D. Nonnenmacher, F. Giesselman, R. Lemieux, and S. Kumar, Oral Presentation.

 

APS March Meeting 2011: Mar. 21-25, Dallas, Texas

5. Three Dielectric Constants and Orientation Order Parameters in Nematic Mesophases, H-G. Yoon, S-Y. Jeong, M-S. Park, J-O. Park, M. Srinivasarao, S. T. Shin, and S. Kumar,  Oral Presentation.

6. In-situ X-ray Diffraction Study of the Elongation Behavior of a Main-Chain Liquid Crystal Elastomer, S. Dey, D. M. Agra-Kooijman, L. Joshi, R. Wanting, W. Kline, A. C. Griffin, and S. Kumar, Oral Presentation.

APS March Meeting 2011: Mar. 15-19, Portland, Oregon

7. Dynamics of Main Chain Liquid Crystal Elastomers by X-ray Scattering, D. M. Agra-Kooijman, L. Joshi, S. Dey, R. Wanting, W. Kline, A. C. Griffin, and S. Kumar,  Oral Presentation.

 

Gordon Research Conference: Liquid Crystals, South Hadley, MA, June 19-24 (2011)

8. Effect of Homeotropically and Homogeneously Aligning Polyimides on Bent-Core Uniaxial and Biaxial Nematic Liquid Crystals, H.-G. Yoon, S. Dey, S.-W. Kang, M. Lehmann, J. O. Park, M. Srinivasarao, and S. Kumar.

9. Submolecular Organization and Diffuse Cone Behavior in a de Vries Smectic System, D. M. Agra-Kooijman, H-G. Yoon, K. Ayub,  R. P. Lemieux, and S. Kumar.

10. Structure of Siloxane Based Main Chain Liquid Crystal Elastomer Under Uniaxial Strain, D.M. Agra-Kooijman, S. Dey, L. Joshi, W. Ren, W. Kline, A. Griffin, and S Kumar, 18th National Conference on Liquid Crystals, NERIST, Itanagar, INDIA, Nov. 15-17, 2011. Oral Presentation.

11. Dynamics of Structural Change in Main Chain Liquid Crystal Elastomer under Strain, Sonal Dey, D.M. Agra-Kooijman, L. Joshi, W. Ren, W. Kline, A. Griffin, and S Kumar, Liquid Crystal Day, October 8, 2010, Liquid Crystal Institute, KSU, Kent, Ohio, Oral/Poster Presentation.

 

23rd International Liquid Crystal Conference, Krakow, Poland, July 11–16 (2010)

1. Dual Frequency behavior in Uniaxial and Biaxial Nematic Phases, H.-G. Yoon, S.-W. Kang, Y. Dong and S. Kumar, Poster Presentation.

2. Diffuse Cone Behavior in a de Vries-type Mesogen with 5-Phenylpyrimidine Core and Organosiloxane Chain, H.-G. Yoon, D. M. Agra-Kooijman, K. Ayub, R. P. Lemieux, and S. Kumar, Oral Presentation.

3. Structural Dynamics of Siloxane-Based Main Chain Liquid Crystal Elastomer Revealed by Synchrotron X-ray Scattering, D. M. Agra-Kooijman, L. Joshi, S. Dey, W. Ren, W.Kline, A. Griffin, and S. Kumar, Oral Presentation.

4. Self-assembly in Crowded Solutions of Lyotropic Chromonic Liquid Crystals, L. Tortora, H.-S. Park, S.-W. Kang, V. Savaryn, S.-H. Hong, K. Kaznacheev, D. Finotello, S. Sprunt, S. Kumar, and O. D. Lavrentovich, Poster Presentation.

5. Liquid Crystalline Behavior of the Dimeric Mesogens Formed by Intermolecular Hydrogen Bonding, S.-Y. Jeong, S.-W. Kang, V. Prasad, S. K. Varshney, and S. Kumar, Poster Presentation.

6. Structural Investogations of the Nematic Phases in Ge-based Tetrapodic Liquid Crystals, H.-G. Yoon, S.-W. Kang, G. H. Mehl, and S. Kumar, Poster Presentation.

7. Self-assembly of Lyotropic Chromonic Liquid Crystal Disodium Cromoglycate in Crowded Solutions, L. Tortora, H.-S. Park, S.-W. Kang, V. Savaryn, S.-H. Hong, K. Kaznacheev, D. Finotello, S. Sprunt, S. Kumar, and  O. D. Lavrentovich, 84 Colloidal Symposium, University of Akron, June 20-23 (2010).

8. Dynamics of Main Chain Liquid Crystal Elastomers Revealed by Synchrotron X-ray Scattering, Dena Mae Agra-Kooijman, Leela Joshi, Sonal. Dey, and Satyendra Kumar, Wanting Ren, Whitney Kline, and A. Griffin, APS March Meeting, Portland, OR, March 15-19 (2010).

 

Synposium on “Anisotropic Soft Matter in bulk and under Confinement: Challenges in Integrating Theory, Simulations and Experiments”, Georgia Institute of Tech, Atlanta, Jan 28-29 (2010)

9. First direct evidence of diffuse-cone behavior at the SmA to SmC transition in a “deVries-like” organosiloxane mesogen with 5‑phenylpyrimidine Core, H.-G. Yoon, R. P. Lemieux, and S. Kumar.

10. Uniaxial and biaxial nematic phases of a bent core mesogens, H.-G. Yoon, S.-W. Kang and S. Kumar.

11. Dynamics of Main Chain Liquid Crystal Elastomers, D. M. Agra-Kooijman, L. Joshi, S. Dey, and S. Kumar.

12. Biaxial nematic and smectic-C phases of a tetrapodic mesogens, H.-G. Yoon, S.-W. Kang, G. H. Mehl, and S. Kumar.

13. Columnar Aggregates in Chromonic Liquid Crystal Phases, L. Joshi, S-W. Kang, D. M. Agra-Kooijman, and S. Kumar.

 

Gordon Research Conf. on Liquid Crystals, Colby Sawyer College, NH, June 14-19 (2009)

14. The Biaxial Nematic Phase of A131, H.-G. Yoon, S.-W. Kang, S. Kumar, R. Y. Dong, A. Marini, K. A. Suresh, and M. Srinivasarao, Oral presentation at Gordon Research Conference on Liquid Crystals, Colby_Sawyer College, NH, June 14-19 (2009).

15. The biaxial nematic and smectic-C phases of tetrapodic mesogens, H.-G. Yoon, S.-W. Kang, G. H. Mehl, and S. Kumar, Poster Presentation at Gordon Research Conference on Liquid Crystals, Colby-Sawyer College, NH, June 14-19 (2009).

16. Phosphatidylinositol polyphosphates: ionization constants in fluid phosphatidylcholine model membranes, E.E. Kooijman, M. Gangoda, S. Kumar, A. Gericke, Experimental Biology, New Orleans, LA, April 18-22 (2009)

Conference Presentations: contd.