D.  Depan, Kumar, A. Pratheep, and Singh, R. Pal, ?Preparation and characterization of novel hybrid of chitosan-g-lactic acid and montmorillonite?, Journal of Biomedical Materials Research Part A, vol. 78A, no. 2, pp. 372-382, 2006.

S. P.  Lonkar, A. Kumar, P., and Singh, R. Pal, ?Photo-stabilization of EPDM-clay nanocomposites: effect of antioxidant on the preparation and durability?, Polymers for Advanced Technologies, vol. 18, no. 11, pp. 891-900, 2007.

D.  Depan, Kumar, B., and Singh, R. Pal, ?Preparation and characterization of novel hybrid of chitosan-g-PDMS and sodium montmorrilonite?, Journal of Biomedical Materials Research Part B-Applied Biomaterials, vol. 84, no. 1, pp. 184-190, 2008.

A. Pratheep Kumar, Mohaideen, K. Khaja, Alariqi, S. A. S., and Singh, R. Pal, ?Preparation and characterization of bioceramic nanocomposites based on hydroxyapatite (HA) and carboxymethyl cellulose (CMC)?, Macromolecular Research, vol. 18, no. 12, pp. 1160-1167, 2010.

D.  Depan and Singh, R. Pal, ?Preparation and characterization of novel hybrid of bio-assisted mineralized Zn-Al layered double hydroxides using chitosan as a template?, Journal of Applied Polymer Science, vol. 115, no. 6, pp. 3636-3644, 2010.