V. D.  Chaube, Shylesh, S., and Singh, A. P., ?Synthesis, characterization and catalytic activity of Mn(III)- and Co(II)-salen complexes immobilized mesoporous alumina?, Journal of Molecular Catalysis A-Chemical, vol. 241, no. 1-2, pp. 79-87, 2005.

S.  Shylesh, Samuel, P. P., Srilakshmi, C., Parischa, R., and Singh, A. P., ?Sulfonic acid functionalized mesoporous silicas and organosilicas: synthesis, characterization and catalytic applications?, Journal of Molecular Catalysis A-Chemical, vol. 274, no. 1-2, pp. 153-158, 2007.

S.  Shylesh, Samuel, P. P., and Singh, A. P., ?Synthesis of hydrothermally stable aluminium-containing ethane-silica hybrid mesoporous materials using different aluminium sources?, Microporous and Mesoporous Materials, vol. 100, no. 1-3, pp. 250-258, 2007.

S.  Shylesh, Kapoor, M. P., Juneja, L. R., Srilakshmi, C., and Singh, A. P., ?Synthesis and characterization of bifunctional ethenylene bridged mesoporous organoaluminosilicates?, Nanoscience and Nanotechnology Letters, vol. 3, no. 4, pp. 497-502, 2011.

A.  Lazar, Thiel, W. R., and Singh, A. P., ?Synthesis and characterization of 3-[N,N `-bis-3-(salicylidenamino)ethyltriamine] Mo(VI)O-2@SBA-15: a highly stable and reusable catalyst for epoxidation and sulfoxidation reactions?, RSC Advances, vol. 4, no. 27, pp. 14063-14073, 2014.

P.  Sharma and Singh, A. P., ?Synthesis of a recyclable and efficient Pd(II) 4-(2-pyridyl)-1,2,3-triazole complex over a solid periodic mesoporous organosilica support by ``click reactions'' for the stille coupling reaction?, RSC Advances, vol. 4, no. 81, pp. 43070-43079, 2014.

B.  Sreenu, Sharma, P., Seshaiah, K., and Singh, A. P., ?Synthesis and characterization of nanoporous silica SBA-15 diaminocyclohexane and its application in removal of Cu(II) and Ni(II) from aqueous solution?, Desalination and Water Treatment, vol. 57, no. 33, pp. 15397-15409, 2016.

B.  Sreenu, Imran, K., Seshaiah, K., Sharma, P., and Singh, A. P., ?Synthesis of new hybrid sorbent 2-mercaptobenzaldehyde SBA-15 and its application in solid phase extraction of Cd(II) from water and food samples?, Analytical Methods, vol. 8, no. 14, pp. 2947-2954, 2016.

A.  Pathak and Singh, A. P., ?Synthesis and characterization of D-2PA-Pd(II)@SBA-15 catalyst via ``click chemistry'': highly active catalyst for Suzuki coupling reactions?, Journal of Porous Materials, vol. 24, no. 2, pp. 327-340, 2017.

P.  Sharma, Rathod, J., Singh, A. P., Kumar, P., and Sasson, Y., ?Synthesis of heterogeneous Ru(II)-1,2,3-triazole catalyst supported over SBA-15: application to the hydrogen transfer reaction and unusual highly selective 1,4-disubstituted triazole formation via multicomponent click reaction?, Catalysis Science & Technology, vol. 8, no. 13, pp. 3246-3259, 2018.