Sachin Velankar

  • (2009) ASEE Air Force Summer Faculty Fellowship.
  • (2008) MPE2 Best Mentor Award, University of Pittsburgh.
  • (2006) Faculty Honor Roll, Dept. of Chemical Engineering, University of Pittsburgh.
  • (2004) NSF-CAREER award.
  • (1999 - 2001) Research Council Junior Fellowship, Katholieke Universiteit Leuven, Belgium.
  • (1997 - 1998) University Competitive Fellowship, University of Delaware.
  • (1997) Graduate Teaching Fellowship Award, Department of Chemical Engineering, University of Delaware, Spring 1997.
  • (1996) R.L. Pigford Teaching Assistant Award, University of Delaware.
  • (1996) University of Delaware Excellence in Teaching Award.

  • Ph.D., Chemical Engineering, University of Delaware, 1999
  • B.S., Chemical Engineering, Indian Institute of Technology Bombay, 1993

  • Bhattacharya, M., Vaswani, J., Velankar, S.S., & Subhedar, A. (2026). Modeling of contact angle hysteresis for rigid mobile particles: A phase-field lattice Boltzmann approach. Physical Review E, 113(2), 025303.American Physical Society (APS). doi: 10.1103/59kb-q12s.
  • Banerjee, S., Barker, E.F., Meyer, T.Y., & Velankar, S.S. (2025). Phase behavior and hydrate crystallization kinetics in polyoxacyclobutane-water mixtures: Effects of molecular weight. POLYMER, 328.Elsevier. doi: 10.1016/j.polymer.2025.128363.
  • Rouhani, F., Sankara Raman, A.G., Pazin, J.W., & Velankar, S.S. (2025). Inelastic effects in tube inflation: non-axisymmetric bulge instability and propagation in polyethylene tubes. Soft Matter, 21(47), 9070-9082.Royal Society of Chemistry (RSC). doi: 10.1039/d5sm00778j.
  • Vaswani, J., & Velankar, S.S. (2025). Particle-Filled Emulsion Drops Show Flow-Induced Partial Coalescence, but Only Transiently. Ind Eng Chem Res, 64(46), 22185-22195.American Chemical Society (ACS). doi: 10.1021/acs.iecr.5c02170.
  • Chaudhary, S., Velankar, S.S., & Schroeder, C.M. (2024). Dynamics of meniscus-bound particle clusters in extensional flow. JOURNAL OF RHEOLOGY, 68(3), 397-413.Society of Rheology. doi: 10.1122/8.0000805.
  • Rouhani, F., Pazin, J.W., Young, B.A., Liu, Q., & Velankar, S.S. (2024). Inelastic effects in bulge formation of inflated polymer tubes. Soft Matter, 20(20), 4152-4164.Royal Society of Chemistry (RSC). doi: 10.1039/d4sm00241e.
  • Velankar, R.S., & Velankar, S.S. (2024). Soft bottles drain faster but glug slower. PHYSICS OF FLUIDS, 36(9).AIP Publishing. doi: 10.1063/5.0217553.
  • Banerjee, S., Gresh-Sill, M., Barker, E.F., Meyer, T.Y., & Velankar, S.S. (2023). Polymer co-crystallization from LLE: Crystallization kinetics of POCB hydrate from two-phase mixtures of POCB and water. POLYMER, 282.Elsevier. doi: 10.1016/j.polymer.2023.126087.
  • Guan, X., Nguyen, N., Cerda, E., Pocivavsek, L., & Velankar, S.S. (2023). Ridge localization driven by wrinkle packets. Soft Matter, 19(47), 9206-9214.Royal Society of Chemistry (RSC). doi: 10.1039/d3sm01287e.
  • Guan, X., Nguyen, N., Pocivavsek, L., Cerda, E., & Velankar, S. (2023). Flat, wrinkled, or ridged: Relaxation of an elastic film on a viscous substrate undergoing continuous compression. Int J Solids Struct, 275.Elsevier. doi: 10.1016/j.ijsolstr.2023.112242.
  • Lopez, R., Vaswani, J., Butler, D.T., McCarthy, J., & Velankar, S.S. (2023). Low viscosity liquid bridges: Stretching of liquid bridges immersed in a higher viscosity liquid. JCIS OPEN, 9.Elsevier. doi: 10.1016/j.jciso.2023.100079.
  • Nguyen, C., Ramalingam, K., Kushnir, Z., Rouhani, F., & Velankar, S.S. (2023). Mechano-Activated Shape Morphing of Aluminum-Plastic Laminate Composites. ADVANCED ENGINEERING MATERIALS, 25(22).Wiley. doi: 10.1002/adem.202301111.
  • Nguyen, N., Hamm Hahn, E., Velankar, S., Cerda, E., & Pocivavsek, L. (2023). Topographic de-adhesion in the viscoelastic limit. J R Soc Interface, 20(198), 20220598.The Royal Society. doi: 10.1098/rsif.2022.0598.
  • Pitre, N.N., Moses, J.B., Tzeng, E., Abramowitch, S., & Velankar, S.S. (2023). Crimped fiber composites: mechanics of a finite-length crimped fiber embedded in a soft matrix. Biomech Model Mechanobiol, 22(3), 1083-1094.Springer Nature. doi: 10.1007/s10237-023-01702-9.
  • Barker, E.F., Banerjee, S., Meyer, T.Y., & Velankar, S. (2022). Liquids that Freeze when Mixed: Homogeneous Cocrystallization Kinetics of Polyoxacyclobutane-Water Hydrate. ACS APPLIED POLYMER MATERIALS, 4(1), 703-713.American Chemical Society (ACS). doi: 10.1021/acsapm.1c01626.
  • Guan, X., Reddipalli, L., Butler, D.T., Liu, Q., & Velankar, S.S. (2022). Rate-dependent creasing of a viscoelastic liquid. EXTREME MECHANICS LETTERS, 55.Elsevier. doi: 10.1016/j.eml.2022.101784.
  • Guan, X., Sarma, A.P., Hamesh, E.K., Yang, J., Nguyen, N., Cerda, E., Pocivavsek, L., & Velankar, S.S. (2022). Compression-induced buckling of thin films bonded to viscous substrates: Uniform wrinkles vs localized ridges. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 254.Elsevier. doi: 10.1016/j.ijsolstr.2022.111843.
  • Breid, D., Lai, V., Flowers, A.T., Guan, X., Liu, Q., & Velankar, S.S. (2021). Drop Spreading and Confinement in Swelling-Driven Folding of Thin Films. Langmuir, 37(23), 6985-6994.American Chemical Society (ACS). doi: 10.1021/acs.langmuir.1c00520.
  • Dilly, A.K., Honick, B.D., Frederick, R., Elapavaluru, A., Velankar, S., Makala, H., Hitchens, T.K., Foley, L.M., Guo, J., Beumer, J.H., Rigatti, L.H., Lee, Y.J., Bartlett, D.L., & Choudry, H.A. (2021). Improved chemosensitivity following mucolytic therapy in patient-derived models of mucinous appendix cancer. Transl Res, 229, 100-114.Elsevier. doi: 10.1016/j.trsl.2020.10.005.
  • Nasrollah Gavgani, J., Goharpey, F., & Velankar, S. (2021). Interfacially compatibilized PI/PDMS blends with reduced octadecylamine-functionalized graphene oxide: morphological and rheological properties. Soft Matter, 17(42), 9670-9681.Royal Society of Chemistry (RSC). doi: 10.1039/d1sm01057c.
  • Ramachandran, G.R., de Cortie, J., Maiti, S., Deseri, L., & Velankar, S.S. (2021). Uniaxial stretch-release of rubber-plastic bilayers: Strain-dependent transition to stable helices, rolls, saddles, and tubes. EXTREME MECHANICS LETTERS, 48.Elsevier. doi: 10.1016/j.eml.2021.101384.
  • Xiang, S., Li, Z., Fritch, M.R., Li, L., Velankar, S., Liu, Y., Sohn, J., Baker, N., Lin, H., & Tuan, R.S. (2021). Caveolin-1 mediates soft scaffold-enhanced adipogenesis of human mesenchymal stem cells. Stem Cell Res Ther, 12(1), 347.Springer Nature. doi: 10.1186/s13287-021-02356-z.
  • Yang, J., Shen, A., & Velankar, S.S. (2021). The preparation and thermomechanical properties of high-temperature foams based on thermoplastic poly(phthalazinone ether ketone). JOURNAL OF APPLIED POLYMER SCIENCE, 138(3).Wiley. doi: 10.1002/app.49699.
  • Amoabeng, D., Tempalski, A., Young, B.A., Binks, B.P., & Velankar, S.S. (2020). Fumed silica induces co-continuity across a wide composition range in immiscible polymer blends. POLYMER, 186.Elsevier. doi: 10.1016/j.polymer.2019.121831.
  • Herneisey, M., Salcedo, P.F., Domenech, T., Bagia, C., George, S.S., Tunney, R., Velankar, S., Hitchens, T.K., & Janjic, J.M. (2020). Design of Thermoresponsive Polyamine Cross-Linked Perfluoropolyether Hydrogels for Imaging and Delivery Applications. ACS Med Chem Lett, 11(10), 2032-2040.American Chemical Society (ACS). doi: 10.1021/acsmedchemlett.0c00198.
  • Naranjo, J.D., Saldin, L.T., Sobieski, E., Quijano, L.M., Hill, R.C., Chan, P.G., Torres, C., Dziki, J.L., Cramer, M.C., Lee, Y.C., Das, R., Bajwa, A.K., Nossair, R., Klimak, M., Marchal, L., Patel, S., Velankar, S.S., Hansen, K.C., McGrath, K., & Badylak, S.F. (2020). Esophageal extracellular matrix hydrogel mitigates metaplastic change in a dog model of Barrett's esophagus. Sci Adv, 6(27), eaba4526.American Association for the Advancement of Science (AAAS). doi: 10.1126/sciadv.aba4526.
  • Naranjo, J.D., Saldin, L.T., Sobieski, E., Quijano, L.M., Hill, R.C., Chan, P.G., Torres, C., Dziki, J.L., Cramer, M.C., Lee, Y.C., Das, R., Bajwa, A.K., Nossair, R., Klimak, M., Marchal, L., Patel, S., Velankar, S.S., Hansen, K.C., McGrath, K., & Badylak, S.F. (2020). Esophageal extracellular matrix hydrogel mitigates metaplastic change in a dog model of Barrett's esophagus. Sci Adv, 6(27). doi: 10.1126/sciadv.aba4526.
  • Nath, N.N., Pocivavsek, L., Pugar, J.A., Gao, Y., Salem, K., Pitre, N., McEnaney, R., Velankar, S., & Tzeng, E. (2020). Dynamic Luminal Topography: A Potential Strategy to Prevent Vascular Graft Thrombosis. Front Bioeng Biotechnol, 8, 573400.Frontiers. doi: 10.3389/fbioe.2020.573400.
  • Nguyen, N., Nath, N., Deseri, L., Tzeng, E., Velankar, S.S., & Pocivavsek, L. (2020). Wrinkling instabilities for biologically relevant fiber-reinforced composite materials with a case study of Neo-Hookean/Ogden-Gasser-Holzapfel bilayer. Biomech Model Mechanobiol, 19(6), 2375-2395.Springer Nature. doi: 10.1007/s10237-020-01345-0.
  • Patel, A., Sant, V., Velankar, S., Dutta, M., Balasubramanian, V., Sane, P., Agrawal, V., Wilson, J., Rohan, L.C., & Sant, S. (2020). Self-assembly of multiscale anisotropic hydrogels through interfacial polyionic complexation. J Biomed Mater Res A, 108(12), 2504-2518.Wiley. doi: 10.1002/jbm.a.37001.
  • Ramachandran, R.G., Maiti, S., & Velankar, S.S. (2020). Necking and drawing of rubber-plastic laminate composites: Finite element simulations and analytical model. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 142.Elsevier. doi: 10.1016/j.jmps.2020.104012.
  • Bellotti, E., Fedorchak, M.V., Velankar, S., & Little, S.R. (2019). Tuning of thermoresponsive pNIPAAm hydrogels for the topical retention of controlled release ocular therapeutics. J Mater Chem B, 7(8), 1276-1283.Royal Society of Chemistry (RSC). doi: 10.1039/C8TB02976H.
  • Pocivavsek, L., Ye, S.H., Pugar, J., Tzeng, E., Cerda, E., Velankar, S., & Wagner, W.R. (2019). Active wrinkles to drive self-cleaning: A strategy for anti-thrombotic surfaces for vascular grafts. Biomaterials, 192, 226-234.Elsevier. doi: 10.1016/j.biomaterials.2018.11.005.
  • Amoabeng, D., & Velankar, S.S. (2018). A Review of Conductive Polymer Composites Filled With Low Melting Point Metal Alloys. POLYMER ENGINEERING AND SCIENCE, 58(6), 1010-1019.Wiley. doi: 10.1002/pen.24774.
  • Amoabeng, D., & Velankar, S.S. (2018). Bulk soldering: Conductive polymer composites filled with copper particles and solder. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 553, 624-632.Elsevier. doi: 10.1016/j.colsurfa.2018.06.013.
  • Banerjee, J., Koronaios, P., Morganstein, B., Geib, S.J., Enick, R.M., Keith, J.A., Beckman, E.J., & Velankar, S.S. (2018). Liquids That Freeze When Mixed: Cocrystallization and Liquid-Liquid Equilibrium in Polyoxacyclobutane-Water Mixtures. MACROMOLECULES, 51(8), 3176-3183.American Chemical Society (ACS). doi: 10.1021/acs.macromol.8b00239.
  • Chido, M.T., Koronaios, P., Saravanan, K., Adams, A.P., Geib, S.J., Zhu, Q., Sunkara, H.B., Velankar, S.S., Enick, R.M., Keith, J.A., & Star, A. (2018). Oligomer Hydrate Crystallization Improves Carbon Nanotube Memory. CHEMISTRY OF MATERIALS, 30(11), 3813-3818.American Chemical Society (ACS). doi: 10.1021/acs.chemmater.8b00964.
  • Gavgani, J.N., Goharpey, F., Velankar, S., & Foudazi, R. (2018). Suppressing droplet coalescence and aggregation in immiscible homopolymer blends by interfacially cross-linked compatibilizers. JOURNAL OF RHEOLOGY, 62(5), 1217-1231.Society of Rheology. doi: 10.1122/1.5020961.
  • Pocivavsek, L., Ye, S.H., Wagner, W., Tzeng, E., Pugar, J., O'Dea, R., Velankar, S., & Cerda, E. (2018). Topography Driven Surface Renewal. Nat Phys, 14(9), 948-953.Springer Nature. doi: 10.1038/s41567-018-0193-x.
  • Ramachandran, R.G., Hariharakrishnan, S., Fortunato, R., Abramowitch, S.D., Maiti, S., & Velankar, S.S. (2018). Necking and drawing of rubber-plastic bilayer laminates. Soft Matter, 14(24), 4977-4986.Royal Society of Chemistry (RSC). doi: 10.1039/c8sm00684a.
  • Yang, J., Heinichen, N., & Velankar, S.S. (2018). The effect of particle wettability on the of rheology particulate suspensions with capillary force. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 558, 164-170.Elsevier. doi: 10.1016/j.colsurfa.2018.08.062.
  • Amoabeng, D., Roell, D., Clouse, K.M., Young, B.A., & Velankar, S.S. (2017). A composition-morphology map for particle-filled blends of immiscible thermoplastic polymers. POLYMER, 119, 212-223.Elsevier. doi: 10.1016/j.polymer.2017.04.009.
  • Domenech, T., & Velankar, S.S. (2017). Microstructure, phase inversion and yielding in immiscible polymer blends with selectively wetting silica particles. JOURNAL OF RHEOLOGY, 61(2), 363-377.Society of Rheology. doi: 10.1122/1.4975931.
  • Keane, T.J., Dziki, J., Castelton, A., Faulk, D.M., Messerschmidt, V., Londono, R., Reing, J.E., Velankar, S.S., & Badylak, S.F. (2017). Preparation and characterization of a biologic scaffold and hydrogel derived from colonic mucosa. J Biomed Mater Res B Appl Biomater, 105(2), 291-306.Wiley. doi: 10.1002/jbm.b.33556.
  • Lievano, D., Velankar, S., & McCarthy, J.J. (2017). The rupture force of liquid bridges in two and three particle systems. POWDER TECHNOLOGY, 313, 18-26.Elsevier. doi: 10.1016/j.powtec.2017.02.053.
  • Saldin, L.T., Cramer, M.C., Velankar, S.S., White, L.J., & Badylak, S.F. (2017). Extracellular matrix hydrogels from decellularized tissues: Structure and function. Acta Biomater, 49, 1-15.Elsevier. doi: 10.1016/j.actbio.2016.11.068.
  • Yang, J., & Velankar, S.S. (2017). Preparation and yielding behavior of pendular network suspensions. JOURNAL OF RHEOLOGY, 61(2), 217-228.Society of Rheology. doi: 10.1122/1.4973962.
  • Yang, J., Damle, S., Maiti, S., & Velankar, S.S. (2017). Stretching-induced wrinkling in plastic-rubber composites. Soft Matter, 13(4), 776-787.Royal Society of Chemistry (RSC). doi: 10.1039/c6sm01823h.
  • Yang, J., Roell, D., Echavarria, M., & Velankar, S.S. (2017). A microstructure-composition map of a ternary liquid/liquid/particle system with partially-wetting particles. Soft Matter, 13(45), 8579-8589.Royal Society of Chemistry (RSC). doi: 10.1039/c7sm01571b.
  • Domenech, T., Yang, J., Heidlebaugh, S., & Velankar, S.S. (2016). Three distinct open-pore morphologies from a single particle-filled polymer blend. Phys Chem Chem Phys, 18(6), 4310-4315.Royal Society of Chemistry (RSC). doi: 10.1039/c5cp07576a.
  • Lobos, J., & Velankar, S. (2016). How much do nanoparticle fillers improve the modulus and strength of polymer foams?. JOURNAL OF CELLULAR PLASTICS, 52(1), 57-88.SAGE Publications. doi: 10.1177/0021955X14546015.
  • Lobos, J., Iasella, S., Rodriguez-Perez, M.A., & Velankar, S.S. (2016). Improving the stability of polylactic acid foams by interfacially adsorbed particles. POLYMER ENGINEERING AND SCIENCE, 56(1), 9-17.Wiley. doi: 10.1002/pen.24185.
  • Cai, Z., Kwak, D.H., Punihaole, D., Hong, Z., Velankar, S.S., Liu, X., & Asher, S.A. (2015). A Photonic Crystal Protein Hydrogel Sensor for Candida albicans. Angew Chem Int Ed Engl, 54(44), 13036-13040.Wiley. doi: 10.1002/anie.201506205.
  • Chatterjee, S., & Velankar, S.S. (2015). Reversibly texturing active surfaces with spatial and temporal control. JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 26(3), 328-339.SAGE Publications. doi: 10.1177/1045389X14525492.
  • Chatterjee, S., McDonald, C., Niu, J., Velankar, S.S., Wang, P., & Huang, R. (2015). Wrinkling and folding of thin films by viscous stress. Soft Matter, 11(9), 1814-1827.Royal Society of Chemistry (RSC). doi: 10.1039/c4sm02501f.
  • Domenech, T., & Velankar, S.S. (2015). On the rheology of pendular gels and morphological developments in paste-like ternary systems based on capillary attraction. Soft Matter, 11(8), 1500-1516.Royal Society of Chemistry (RSC). doi: 10.1039/c4sm02053g.
  • Jaramillo, M., Singh, S.S., Velankar, S., Kumta, P.N., & Banerjee, I. (2015). Inducing endoderm differentiation by modulating mechanical properties of soft substrates. J Tissue Eng Regen Med, 9(1), 1-12.Hindawi. doi: 10.1002/term.1602.
  • Kulkarni, A., Lele, A., Sivaram, S., Rajamohanan, P.R., Velankar, S., & Chatterji, A. (2015). Star Telechelic Poly(L-lactide) Ionomers. MACROMOLECULES, 48(18), 6580-6588.American Chemical Society (ACS). doi: 10.1021/acs.macromol.5b01854.
  • Massensini, A.R., Ghuman, H., Saldin, L.T., Medberry, C.J., Keane, T.J., Nicholls, F.J., Velankar, S.S., Badylak, S.F., & Modo, M. (2015). Concentration-dependent rheological properties of ECM hydrogel for intracerebral delivery to a stroke cavity. Acta Biomater, 27, 116-130.Elsevier. doi: 10.1016/j.actbio.2015.08.040.
  • Velankar, S.S. (2015). A non-equilibrium state diagram for liquid/fluid/particle mixtures. Soft Matter, 11(43), 8393-8403.Royal Society of Chemistry (RSC). doi: 10.1039/c5sm01901j.
  • Allen, J.J., Bell, G.R.R., Kuzirian, A.M., Velankar, S.S., & Hanlon, R.T. (2014). Comparative morphology of changeable skin papillae in octopus and cuttlefish. J Morphol, 275(4), 371-390.Wiley. doi: 10.1002/jmor.20221.
  • Domenech, T., & Velankar, S. (2014). Capillary-driven percolating networks in ternary blends of immiscible polymers and silica particles. RHEOLOGICA ACTA, 53(8), 593-605.Springer Nature. doi: 10.1007/s00397-014-0776-0.
  • Heidlebaugh, S.J., Domenech, T., Iasella, S.V., & Velankar, S.S. (2014). Aggregation and separation in ternary particle/oil/water systems with fully wettable particles. Langmuir, 30(1), 63-74.American Chemical Society (ACS). doi: 10.1021/la4039396.
  • Medberry, C.J., Crapo, P.M., Siu, B.F., Carruthers, C.A., Wolf, M.T., Nagarkar, S.P., Agrawal, V., Jones, K.E., Kelly, J., Johnson, S.A., Velankar, S.S., Watkins, S.C., Modo, M., & Badylak, S.F. (2013). Hydrogels derived from central nervous system extracellular matrix. Biomaterials, 34(4), 1033-1040.Elsevier. doi: 10.1016/j.biomaterials.2012.10.062.
  • Nagarkar, S., & Velankar, S.S. (2013). Rheology and morphology of model immiscible polymer blends with monodisperse spherical particles at the interface. JOURNAL OF RHEOLOGY, 57(3), 901-926.Society of Rheology. doi: 10.1122/1.4801757.
  • Peng, S.C., Nagarkar, S.P., Lowen, J.L., & Velankar, S.S. (2013). Circuit model for microfluidic bubble generation under controlled pressure. MICROFLUIDICS AND NANOFLUIDICS, 15(6), 797-805.Springer Nature. doi: 10.1007/s10404-013-1189-6.
  • Zhang, J.T., Wang, L., Chao, X., Velankar, S.S., & Asher, S.A. (2013). Vertical spreading of two-dimensional crystalline colloidal arrays. JOURNAL OF MATERIALS CHEMISTRY C, 1(38), 6099-6102.Royal Society of Chemistry (RSC). doi: 10.1039/c2tc00794k.
  • Nagarkar, S.P., & Velankar, S.S. (2012). Morphology and rheology of ternary fluid-fluid-solid systems. SOFT MATTER, 8(32), 8464-8477.Royal Society of Chemistry (RSC). doi: 10.1039/c2sm25758k.
  • Velankar, S.S., Lai, V., & Vaia, R.A. (2012). Swelling-induced delamination causes folding of surface-tethered polymer gels. ACS Appl Mater Interfaces, 4(1), 24-29.American Chemical Society (ACS). doi: 10.1021/am201428m.
  • Wolf, M., Daly, K., Brennan-Pierce, E., Johnson, S., Carruthers, C., D'Amore, A., Nagarkar, S., Velankar, S., & Badylak, S. (2012). Extracellular Matrix Hydrogels Prepared from Porcine Dermis and UrinaryBladder: Structure, Mechanics and In Vivo Remodeling. GLYCOBIOLOGY, 22(11), 1585-1586.
  • Wolf, M.T., Daly, K.A., Brennan-Pierce, E.P., Johnson, S.A., Carruthers, C.A., D'Amore, A., Nagarkar, S.P., Velankar, S.S., & Badylak, S.F. (2012). A hydrogel derived from decellularized dermal extracellular matrix. Biomaterials, 33(29), 7028-7038.Elsevier. doi: 10.1016/j.biomaterials.2012.06.051.
  • Zhang, J.T., Wang, L., Lamont, D.N., Velankar, S.S., & Asher, S.A. (2012). Fabrication of large-area two-dimensional colloidal crystals. Angew Chem Int Ed Engl, 51(25), 6117-6120.Wiley. doi: 10.1002/anie.201105439.
  • DeLeo, C., Pinotti, C.A., Goncalves, M.D.C., & Velankar, S. (2011). Preparation and Characterization of Clay Nanocomposites of Plasticized Starch and Polypropylene Polymer Blends. JOURNAL OF POLYMERS AND THE ENVIRONMENT, 19(3), 689-697.Springer Nature. doi: 10.1007/s10924-011-0311-7.
  • DeLeo, C., Walsh, K., & Velankar, S.S. (2011). Effect of composition on the rheology and morphology of reactively-compatibilized model polymer blends. J. Rheology, 55, 713-731.
  • Fu, S., Thacker, A., Sperger, D.M., Boni, R.L., Buckner, I.S., Velankar, S., Munson, E.J., & Block, L.H. (2011). Relevance of rheological properties of sodium alginate in solution to calcium alginate gel properties. AAPS PharmSciTech, 12(2), 453-460.Springer Nature. doi: 10.1208/s12249-011-9587-0.
  • Fu, S., Thacker, A., Sperger, D.M., Boni, R.L., Velankar, S., Munson, E.J., & Block, L.H. (2011). Rheological Evaluation of Inter-Grade and Inter-Batch Variability of Sodium Alginate (vol 11, pg 1662, 2010). AAPS PHARMSCITECH, 12(1), 449.Springer Nature. doi: 10.1208/s12249-010-9579-5.
  • DeLeo, C., Goetz, J., Young, B., & Velankar, S.S. (2010). Renewable Elastomers Based on Blends of Maleated Polypropylene and Plasticized Starch. JOURNAL OF APPLIED POLYMER SCIENCE, 116(3), 1775-1781.Wiley. doi: 10.1002/app.31662.
  • Fu, S., Thacker, A., Sperger, D.M., Boni, R.L., Velankar, S., Munson, E.J., & Block, L.H. (2010). Rheological evaluation of inter-grade and inter-batch variability of sodium alginate. AAPS PharmSciTech, 11(4), 1662-1674.Springer Nature. doi: 10.1208/s12249-010-9547-0.
  • Thareja, P., Moritz, K., & Velankar, S.S. (2010). The effect of interfacially-adsorbed particles in polymer blends: Coalescence suppression vs. coalescence promotion. Rheol. Acta, 49, 285-298.
  • Thareja, P., Moritz, K., & Velankar, S.S. (2010). Interfacially active particles in droplet/matrix blends of model immiscible homopolymers: Particles can increase or decrease drop size. RHEOLOGICA ACTA, 49(3), 285-298.Springer Nature. doi: 10.1007/s00397-009-0421-5.
  • Cheng, H.L., & Velankar, S.S. (2009). Controlled jamming of particle-laden interfaces using a spinning drop tensiometer. Langmuir, 25(8), 4412-4420.American Chemical Society (ACS). doi: 10.1021/la803552j.
  • Marhefka, J.N., Zhao, R., Wu, Z.J., Velankar, S.S., Antaki, J.F., & Kameneva, M.V. (2009). Drag reducing polymers improve tissue perfusion via modification of the RBC traffic in microvessels. Biorheology, 46(4), 281-292.SAGE Publications. doi: 10.3233/BIR-2009-0543.
  • Muscatello, M.M.W., Stunja, L.E., Thareja, P., Wang, L., Bohn, J.J., Velankar, S.S., & Asher, S.A. (2009). Dependence of Photonic Crystal Nanocomposite Elasticity on Crystalline Colloidal Array Particle Size. Macromolecules, 42(13), 4403-4406.American Chemical Society (ACS). doi: 10.1021/ma900919y.
  • Angeles, M., Cheng, H.L., & Velankar, S.S. (2008). Emulsion electrospinning: composite fibers from drop breakup during electrospinning. POLYMERS FOR ADVANCED TECHNOLOGIES, 19(7), 728-733.Wiley. doi: 10.1002/pat.1031.
  • Cheng, H.L., & Velankar, S.S. (2008). Film climbing of particle-laden interfaces. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 315(1-3), 275-284.Elsevier. doi: 10.1016/j.colsurfa.2007.08.018.
  • DeLeo, C., & Velankar, S.S. (2008). Rheology of immiscible blends with compatibilizer: Differences between diblocks and reactive compatibilizers. J. Rheology, 52, 1385-1404.
  • DeLeo, C.L., & Velankar, S.S. (2008). Morphology and rheology of compatibilized polymer blends: Diblock compatibilizers vs crosslinked reactive compatibilizers. JOURNAL OF RHEOLOGY, 52(6), 1385-1404.Society of Rheology. doi: 10.1122/1.2995857.
  • Freytes, D.O., Martin, J., Velankar, S.S., Lee, A.S., & Badylak, S.F. (2008). Preparation and rheological characterization of a gel form of the porcine urinary bladder matrix. Biomaterials, 29(11), 1630-1637.Elsevier. doi: 10.1016/j.biomaterials.2007.12.014.
  • Freytes, D.O., Martin, J.D., Velankar, S.S., Lee, A.S., & Badylak, S.F. (2008). Preparation and characterization of an injectable form of the porcine Urinary Bladder Matrix. Biomaterials, 29, 1630-1637.
  • Marhefka, J.N., Velankar, S.S., Chapman, T.M., & Kameneva, M.V. (2008). Mechanical degradation of drag reducing polymers in suspensions of blood cells and rigid particles. Biorheology, 45(5), 599-609.SAGE Publications. doi: 10.3233/BIR-2008-0511.
  • Marhefka, J.N., Velankar, S.S., Zhao, R., Wu, Z., Antaki, J.F., & Kameneva, M.V. (2008). Microscale effects of drag-reducing polymers. BIORHEOLOGY, 45(1-2), 58-59.
  • Martin, J., & Velankar, S.S. (2008). Varying the blending protocol to control the morphology of immiscible polymer blends with compatibilizer. AIChE J, 54, 791-801.
  • Martin, J., & Velankar, S.S. (2008). Unusual dynamics of PEG/PPG/Pluronic interfaces. J. Colloid Int. Sci., 322, 669-674.
  • Martin, J.D., & Velankar, S.S. (2008). Unusual behavior of PEG/PPG/Pluronic interfaces studied by a spinning drop tensiometer. J Colloid Interface Sci, 322(2), 669-674.Elsevier. doi: 10.1016/j.jcis.2008.03.050.
  • Martin, J.D., & Velankar, S.S. (2008). Varying the blending protocol to control the morphology of model compatibilized polymer blends. AICHE JOURNAL, 54(3), 791-801.Wiley. doi: 10.1002/aic.11413.
  • Thareja, P., & Velankar, S. (2008). Rheology of immiscible blends with particle-induced drop clusters. RHEOLOGICA ACTA, 47(2), 189-200.Springer Nature. doi: 10.1007/s00397-007-0231-6.
  • Thareja, P., & Velankar, S.S. (2008). Interfacial activity of particles at PI/PDMS and PI/PIB interfaces: analysis based on Girifalco-Good theory. COLLOID AND POLYMER SCIENCE, 286(11), 1257-1264.Springer Nature. doi: 10.1007/s00396-008-1884-0.
  • Thareja, P., & Velankar, S.S. (2008). Pheological effects of particle-induced bridging in PEO/PIB blends. Rheol. Acta, 47, 189-200.
  • Thareja, P., Ising, B.P., Kingston, S.J., & Velankar, S.S. (2008). Polymer foams stabilized by particles adsorbed at the air/polymer interface. MACROMOLECULAR RAPID COMMUNICATIONS, 29(15), 1329-1334.Wiley. doi: 10.1002/marc.200800262.
  • Martin, J.D., & Velankar, S.S. (2007). Effects of compatibilizer on immiscible polymer blends near phase inversion. Journal of Rheology, 51(4), 669-692.Society of Rheology. doi: 10.1122/1.2742391.
  • Thareja, P., & Velankar, S. (2007). Particle-induced bridging in immiscible polymer blends. RHEOLOGICA ACTA, 46(3), 405-412.Springer Nature. doi: 10.1007/s00397-006-0130-2.
  • Velankar, S.S., & Giles, D. (2007). How do I know my phase angles are correct. Rheol. Bulletin, 76(2), 8.
  • Adzima, B.J., & Velankar, S.S. (2006). Pressure drops for droplet flows in microfluidic channels. JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 16(8), 1504-1510.IOP Publishing. doi: 10.1088/0960-1317/16/8/010.
  • Wang, J., & Velankar, S. (2006). Strain recovery of model immiscible blends without compatibilizer. RHEOLOGICA ACTA, 45(3), 297-304.Springer Nature. doi: 10.1007/s00397-005-0037-3.
  • Wang, J., & Velankar, S. (2006). Strain recovery of model immiscible blends: effects of added compatibilizer. RHEOLOGICA ACTA, 45(5), 741-753.Springer Nature. doi: 10.1007/s00397-005-0038-2.
  • Martin, J., & Velankar, S. (2005). Interfacial tension-errors from the Cohen and Carriere analysis of imbedded fiber retraction. MACROMOLECULES, 38(25), 10614-10618.American Chemical Society (ACS). doi: 10.1021/ma050509k.
  • Van Hemelrijck, E., Van Puyvelde, P., Velankar, S., Macosko, C.W., & Moldenaers, P. (2004). Interfacial elasticity and coalescence suppression in compatibilized polymer blends. JOURNAL OF RHEOLOGY, 48(1), 143-158.Society of Rheology. doi: 10.1122/1.1634987.
  • Velankar, S., Van Puyvelde, P., Mewis, J., & Moldenaers, P. (2004). Steady-shear rheological properties of model compatibilized blends. JOURNAL OF RHEOLOGY, 48(4), 725-744.Society of Rheology. doi: 10.1122/1.1765662.
  • Velankar, S., Zhou, H., Jeon, H.K., & Macosko, C.W. (2004). CFD evaluation of drop retraction methods for the measurement of interfacial tension of surfactant-laden drops. J Colloid Interface Sci, 272(1), 172-185.Elsevier. doi: 10.1016/j.jcis.2003.09.030.
  • Van Puyvelde, P., Velankar, S., Mewis, J., & Moldenaers, P. (2002). Effect of Marangoni stresses on the deformation and coalescence in compatibilized immiscible polymer blends. POLYMER ENGINEERING AND SCIENCE, 42(10), 1956-1964.Wiley. doi: 10.1002/pen.11088.
  • Velankar, S., & Moldenaers, P. (2002). Bidisperse polymeric mixtures for independent control of viscosity and elasticity. RHEOLOGICA ACTA, 41(5), 418-426.Springer Nature. doi: 10.1007/s003970100209.
  • Velankar, S.S., & Moldenaers, P. (2002). Bidisperse polymeric mixtures for independent control of viscosity and elasticity. Rheol. Acta, 41, 394-407.
  • Van Puyvelde, P., Velankar, S., & Moldenaers, P. (2001). Rheology and morphology of compatibilized polymer blends. CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 6(5-6), 457-463.Elsevier. doi: 10.1016/S1359-0294(01)00113-3.
  • Velankar, S., Van Puyvelde, P., Mewis, J., & Moldenaers, P. (2001). Effect of compatibilization on the breakup of polymeric drops in shear flow. JOURNAL OF RHEOLOGY, 45(4), 1007-1019.Society of Rheology. doi: 10.1122/1.1380424.
  • Velankar, S., & Cooper, S.L. (2000). Microphase separation and rheological properties of polyurethane melts. 3. Effect of block incompatibility on the viscoelastic properties. MACROMOLECULES, 33(2), 395-403.American Chemical Society (ACS). doi: 10.1021/ma9908189.
  • Velankar, S., & Cooper, S.L. (2000). Microphase separation and rheological properties of polyurethane melts. 2. Effect of block incompatibility on the microstructure. MACROMOLECULES, 33(2), 382-394.American Chemical Society (ACS). doi: 10.1021/ma990817g.
  • Velankar, S., & Cooper, S.L. (1998). Microphase separation and rheological properties of polyurethane melts. 1. Effect of block length. MACROMOLECULES, 31(26), 9181-9192.American Chemical Society (ACS). doi: 10.1021/ma9811472.
  • Velankar, S., Pazos, J., & Cooper, S.L. (1996). High-performance UV-curable urethane acrylates via deblocking chemistry. JOURNAL OF APPLIED POLYMER SCIENCE, 62(9), 1361-1376.Wiley. doi: 10.1002/(SICI)1097-4628(19961128)62:9<1361::AID-APP6>3.0.CO;2-F.
  • Velankar, S.S., & Coope, S.L. (1996). Polyurethanes with pendant pyridine groups: Interactions with alkyl halides. Abstr. Pap. Am. Chem. Soc.: Polymeric Chemistry, 211, 506.
  • Velankar, S.S., Pazos, J., & Cooper, S.L. (1995). UV-curable urethane-ureas with deblocking urea linkages. Abstr. Pap. Am. Chem. Soc.: Polymeric Materials Science and Engineering, 210, 400.

  • Amoabeng, D., Young, B.A., Tempalski, A., Binks, B.P., & Velankar, S.S. (2019). A composition-morphology mapping of fumed silica filled polymer blends. In Annual Technical Conference - ANTEC, Conference Proceedings, 2019-March.
  • Ramachandran, R.G., Maiti, S., & Velankar, S.S. (2019). A computational study of necking and drawing of plastic-rubber laminates. In Annual Technical Conference - ANTEC, Conference Proceedings, 2019-March.
  • Amoabeng, D., & Velankar, S.S. (2018). Exploiting capillary forces in filled plastics: Electrically conductive plastics by bonding copper filler with molten solder. In Annual Technical Conference - ANTEC, Conference Proceedings, 2018-May.
  • Amoabeng, D., & Velankar, S.S. (2018). Bulk soldering: Exploiting capillary forces to make plastics conductive. In Annual Technical Conference - ANTEC, Conference Proceedings, 2018-May.
  • Hariharakrishnan, S., Ramachandran, R., Abramowitch, S., Maiti, S., & Velankar, S.S. (2018). Suppression of necking in LLDPE/SEPS rubber bilayer laminates. In Annual Technical Conference - ANTEC, Conference Proceedings, 2018-May.
  • Amoabeng, D., Roell, D., Klouse, K., Young, B.A., & Velankar, S.S. (2017). A composition-morphology mapping of particle-filled polymer blends up to high fill fraction. In Annual Technical Conference - ANTEC, Conference Proceedings, 2017-May, (pp. 2081-2085).
  • Saldin, L.T., Cramer, M., Chung, C., Cardenas, D., Nicholls, F., Velankar, S.S., Modo, M., & Badylak, S.F. (2015). Rheological Characterization of an Extracellular Matrix Hydrogel as a Cell Carrier for Stroke Damage Repair. In TISSUE ENGINEERING PART A, 21, (pp. S353-S354).
  • Allen, J.J., Bell, G.R.R., Kuzirian, A.M., Velankar, S.S., & Hanlon, R.T. (2014). Functional morphology of changeable skin papillae in octopus and cuttlefish. In INTEGRATIVE AND COMPARATIVE BIOLOGY, 54, (p. E236).
  • Lobos, J., Iasella, S., Velankar, S., & Cellular, M.A.R.P. (2014). Improving thermoplastic foam stability in the molten state by interfacially-adsorbed particles. In Annual Technical Conference - ANTEC, Conference Proceedings, 3(January), (pp. 2535-2539).
  • Breid, D., Lai, V., Flowers, A.T., Vaia, R.A., & Velankar, S.S. (2012). Spontaneous formation and patterning of high aspect-ratio folds via swelling of bound films. In ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 244.
  • Nagarkar, S.P., & Velankar, S.S. (2012). Effect of interfacially-active particles on the structure and rheology of immiscible polymer blends. 244th Meeting of the American Chemical Society.Philadelphia PA.
  • DeLeo, C., Walsh, K., & Velankar, S. (2011). Effect of compatibilizer concentration and weight fraction on model immiscible blends with interfacial crosslinking. 81st annual meeting of the Society of Rheology.Madison WI. doi: 10.1122/1.3571549.
  • Forbes, M.J., Goetz, J.T., Young, B.A., Velankar, S., & Deleo, C. (2009). Effect of environmental exposure on materials based on blends of plasticized starch and polypropylene. In Annual Technical Conference - ANTEC, Conference Proceedings, 3, (pp. 1626-1630).
  • DeLeo, C.L., Velankar, S.S., Co, A., Leal, G.L., Colby, R.H., & Giacomin, A.J. (2008). Morphology and Rheology of Model Immiscible Blends with Interfacial Crosslinking. AIP Conference Proceedings.Monterey CA. doi: 10.1063/1.2964881.
  • Thareja, P., Velankar, S.S., Co, A., Leal, G.L., Colby, R.H., & Giacomin, A.J. (2008). Effect of Particles on Rheology and Morphology of Immiscible PI/PDMS Polymer Blends. AIP Conference Proceedings.Monterey CA. doi: 10.1063/1.2964745.
  • Freytes, D.O., Kolman, S., Velankar, S.S., & Badylak, S.F. (2007). Rheological Properties of Extracellular Matrix Derived Gels. In ASME 2007 Summer Bioengineering Conference, (pp. 1027-1028).ASME International. doi: 10.1115/sbc2007-176537.
  • Martin, J.D., & Velankar, S.S. (2007). Effects of compatibilizer on immiscible polymer blends near phase inversion. 78th Annual Meeting of the Society of Rheology.Portland ME. doi: 10.1122/1.2742391.
  • Martin, J., & Velankar, S. (2005). Mechanical properties of Peo/ Ppo/ pluronic interfaces. Annual Meeting of the AIChE.Cincinnati OH.
  • Velankar, S., Zhou, H., Jeon, H.K., & Macosko, C.W. (2003). Drop retraction methods to measure interfacial tension between compatibilized polymers. In Annual Technical Conference - ANTEC, Conference Proceedings, 2, (pp. 1597-1602).
  • Velankar, S., Yang, C.Z., & Cooper, S.L. (1996). Polyurethanes with pendant pyridine groups: Interactions with alkyl halides. 211th Meeting of the American Chemical Society.New Orleans LA.
  • Velankar, S., Yang, C.Z., & Cooper, S.L. (1996). Polyurethanes with pendant pyridine groups: Interactions with alkyl halides. In American Chemical Society, Polymer Preprints, Division of Polymer Chemistry, 37(1), (pp. 400-401).
Research Interests
Materials engineering Fluid mechanics and thermal engineering Biomedical engineering Macromolecular and materials chemistry Mechanical engineering Chemical engineering