Samanvaya Srivastava

Samanvaya Srivastava

Postdoctoral Scholar

Contact Information

Office: (773) 702-7063

5640 South Ellis Avenue
Eckhardt Research Laboratory 108
Chicago, IL 60637

Biographical Statement

Samanvaya Srivastava received his Ph. D. from Cornell University in 2014. His doctoral dissertation research under the supervision of Prof. Lynden A. Archer was focused on structure and properties of nanoparticle dispersions. Samanvaya developed strategies for achieving uniform nanoparticle dispersion in polymeric matrices and the effects of particle distribution on bulk properties in nanocomposites. Prior to this, he received his B. Tech. and M. Tech. degrees in Chemical Engineering from Indian Institute of Technology Kanpur. In his Masters research, conducted under the guidance of Prof. Ashutosh Sharma, he elucidated the role of physical heterogeneities on substrate surfaces as manifested in the electric force induced patterns in thin polymer films.


My research in the Tirrell group involves investigating the structure and assembly kinetics of polyelectrolyte complex (PEC) based micelles and hydrogels using various scattering techniques (SLS, SAXS, SANS, DLS, and XPCS), with the aim of preparing an extensive structure map and elucidating morphology transitions of electrostatically assembled hydrogels. At the same time, I am also working on elucidating the materials properties of these materials and working towards establishing a comprehensive structure-property relationship database for the hydrogels.

I am also working on understanding the underlying mechanism of Actin encapsulation in PEC coacervate domains and illustrating the feasibility of reversible Actin assembly in presence of PEC coacervates and its effects on the properties of the coacervate droplets.


*Indicates Equal Authorship
  1. "Gel Phase Formation in Dilute Triblock Copolyelectrolyte Complexes"
    S. Srivastava, M. Andreev, A. E. Levi, D. J. Goldfeld, J. Mao, W. T. Heller, V. Prabhu, J. J. de Pablo and M. V. Tirrell, Nature Communications, 8, 14131 (2017). [PDF]
  2. "Self-Suspended Polymer Grafted Nanoparticles"
    S. Srivastava, S. Choudhury, A. Agrawal and L. A. Archer, Current Opinion in Chemical Engineering, DOI: 10.1016/j.coche.2017.04.007 (2017).
  3. "Polyelectrolyte Complexation"
    S. Srivastava and M. V. Tirrell, Advances in Chemical Physics, 161, 499 (2016). [PDF]
  4. "Self-Assembling Peptide-Based Building Blocks in Medical Applications"
    H. Acar, S. Srivastava, E. J. Chung, M. R. Schnorenberg, J. C. Barret and M. V. Tirrell, Advanced Drug Delivery Reviews, DOI: 10.1016/j.addr.2016.08.006. [PDF]
  5. "Size-dependent particle dynamics in entangled polymer-nanocomposites"
    R. Mangal, S. Srivastava, S. Narayanan and L. A. Archer, Langmuir, 32, 596 (2016). [PDF]
  6. "Hyperdiffusive Dynamics in Newtonian Nanoparticle Fluids"
    S. Srivastava,* P. Agarwal,* R. Mangal, S. Narayanan, D. L. Koch and L. A. Archer, ACS Macro Letters, 4, 1149 (2015). [PDF]
  7. "Phase stability and dynamics of entangled polymer-nanoparticle composites"
    R. Mangal, S. Srivastava, and L. A. Archer, Nature Communications, 6, 7198 (2015). [PDF]
  8. "Dynamics and State Transition in Binary Soft Colloids"
    A. Agrawal, H-Yu Yu, S. Srivastava, S. Choudhury, S. Narayanan, L. A. Archer, Soft Matter, 11, 5224-5234 (2014). [PDF]
  9. "Structure Factor of Blends of Solvent-Free Nanoparticle–Organic Hybrid Materials: Density-Functional Theory and Small Angle X-Ray Scattering"
    H.Y. Yu, S. Srivastava, L. A. Archer, D. L. Koch, Soft Matter, 10, 9120-9135 (2014). [PDF]
  10. "25th Anniversary Article: Polymer–Particle Composites: Phase Stability and Applications in Electrochemical Energy Storage"
    S. Srivastava, J. L. Schaefer, Z. Yang, Z. Tu, L. A. Archer, Advanced Materials, 26, 201–234 (2014). [PDF]
  11. "Structure and Transport Anomalies in Soft Colloids"
    S. Srivastava, L. A. Archer, S. Narayanan, Physical Review Letters, 110, 148302 (2013). [PDF]
  12. "High energy lithium–oxygen batteries – transport barriers and thermodynamics"
    S. K. Das, S. Xu, A-H Emwas, Y. Lu, S. Srivastava, L. A. Archer, Energy & Environmental Science, 5, 8927-8931 (2012). [PDF]
  13. "Polymer nanocomposites: polymer and particle dynamics"
    D. Kim,* S. Srivastava,* S. Narayanan, L. A. Archer, Soft Matter, 8, 10813-10818 (2012). [PDF]
  14. "Tethered Nanoparticle–Polymer Composites: Phase Stability and Curvature"
    S. Srivastava, P. Agarwal, L. A. Archer, Langmuir, 28, 6276–6281 (2012). [PDF]
  15. "Structure and rheology of nanoparticle–polymer suspensions"
    S. Srivastava, J. H. Shin, L. A. Archer, Soft Matter, 8, 4097–4108 (2012). [PDF]
  16. "Ionic Liquid-Tethered Nanoparticle Suspensions: A Novel Class of Ionogels"
    S. S. Moganty, S. Srivastava, Y. Lu, J. L. Schaefer, S. A. Rizvi, L. A. Archer, Chemistry of Materials, 24, 1386–1392 (2012). [PDF]
  17. "Thermal Jamming of a Colloidal Glass"
    P. Agarwal, S. Srivastava, L. A. Archer, Physical Review Letters, 107, 268302 (2011). [PDF]
  18. "Electric field induced microstructures in thin films on physicochemically heterogeneous and patterned substrates"
    S. Srivastava, P. D. S. Reddy, C. Wang, D. Bandyopadhyay, A. Sharma, The Journal of Chemical Physics, 132, 174703 (2010). [PDF]
  19. "Embedded Microstructures by Electric-Field-Induced Pattern Formation in Interacting Thin Layers"
    S. Srivastava, D. Bandyopadhyay, A. Sharma, Langmuir, 26, 10943–10952 (2010). [PDF]