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Office phone : 9480836215
Email : skumar
Webpage : http://www.rri.res.in/~skumar
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My research is concerned with the design, synthesis and applications of various liquid crystalline and nano materials. I am interested in understanding the structure-property relationship in these intriguing self-assembling supra-molecular architectures. Present objectives are: (a) design, synthesis and applications of novel liquid crystalline materials; (b) development of new synthetic routes to the synthesis of liquid crystals (LCs); (c) search for new reagents for the synthesis of LCs; (d) synthesis and characterization of various zero-, one- and two-dimensional metallic, semiconducting and carbon nanoparticles; (e) incorporation of nanoparticles in the supramolecular order of LCs to hybridize their properties; (f) physical studies on liquid crystals and nanoparticles dispersed liquid crystalline systems.

Selected publications -
1 Using Antibodies to Perturb the Coordination Sphere of a Transition Metal   Complex
P. Ghosh, D. Shabat, Sandeep kumar, S. C. Sinha, F. Grynszpan, J. L.,
Louis Noodleman and E. Keinan Nature, 382, 339 (1996).
2 Discotic liquid crystal-nanoparticle hybrid systems Sandeep Kumar
Nature Asia Materials, (2014) 6, e82; doi:10.1038/am.2013.75
3 Aligned Carbon Nanotubes in the Supramolecular order of Discotic Liquid Crystals. Sandeep Kumar and H.K. Bisoyi
Angew. Chem. Int. Ed. 46, 1501 (2007).
4 A room temperature discotic nematic liquid crystal Sandeep Kumar and Sanjay K. Varshney
Angew. Chem. Int. Ed., 39/17, 3140 (2000).
5 Trisubstituted decacyclene derivatives. Bridging the gap between the carbonaceuos mesophase and discotic liquid crystals. E. Keinan, S. Kumar, R. Moshenberg, R. Ghirlando, E.J. Wachtel
Advanced Materials, 30, 251-54 (1991).
6 Self-organization of disk-like molecules: chemical aspects
Sandeep Kumar
Chem. Soc. Rev. 35, 83 (2006).
7 Self-Assembled Monolayers of Diacotic Liquid Crystalline thioethers,  Discoid Disulfides, and Thiols on Gold: Molecular Engineering of Ordered Surfaces
H. Schonherr, F.J.B. Kremer, S. Kumar, J.A. Rego, H. Wolf, H. Ringsdorf, M.Jaschke, H.-J. Butt and E. Bamberg J. Am. Chem. Soc., 118, 13051 (1996).
8 Synthesis and Characterization of Fluorescent, Low-Symmetry Triphenylene Discotic Liquid Crystals: Tailoring of Mesomorphic and Optical properties
J.A. Rego, Sandeep Kumar, and H. Ringsdorf
Chem. Mater., 8, 1402 (1996).
9 Mutually ordered self-assembly of discotic liquid crystal-graphene nanocomposites
A. B. Shivanandareddy, S. Krishnamurthy, V. Lakshminarayanan and Sandeep Kumar*
CHEMICAL COMMUNICATIONS, 50, 710-712  (2014).
10 Carbon nanotubes in monomeric and polymeric discotic liquid crystals
Hari Krishna Bisoyi and Sandeep Kumar
J. Mater. Chem. , 18, 3032-39 (2008).