Office: JSCBB C224
B.S. in Materials Engineering, Rensselaer Polytechnic Institute (2014)
M.S. in Polymer Science and Engineering, UMass Amherst (2016)
Ph.D. in Polymer Science and Engineering, University of Massachusetts Amherst (2020)
- A. Martínez-Calvo*, T. Bhattacharjee*, R.K. Bay, H.N. Luu+, A.M. Hancock, N.S. Wingreen, S.S. Datta, “Morphological instability and roughening of growing 3D bacterial colonies”, PNAS, 119, e2208019119 (2022).
- R.K. Bay, T. Zhang, S. Shimomura, M. Ilton, K. Tanaka, R.A. Riggleman, A.J. Crosby, “Decoupling the impact of entanglements and mobility on the failure properties of ultrathin polymer films”, Macromolecules, 55(19), 8505-8514 (2022).
- C. Chen, C.A. Airoldi, C.A. Lugo, R.K. Bay, B.J. Glover, A.J. Crosby, “Flower Inspiration: Broad-Angle Structural Color Through Tunable Hierarchical Wrinkles in Thin Film Multilayers”, Advanced Functional Materials, 2006256 (2020).
- R.K. Bay*, K. Zarybnicka*, J. Jančář, A.J. Crosby, “Mechanical Properties of Ultrathin Film Nanocomposites”, ACS Applied Polymer Materials, 2(6), 2220-2227, (2020).
- W.J. Choi*, R.K. Bay*, A.J. Crosby, “Tensile Properties of Ultrathin Bisphenol-A Polycarbonate Films”, Macromolecules, 52(19), 7489-7494, (2019).
- R.K. Bay, A.J. Crosby, “Uniaxial Extension of Ultrathin Freestanding Polymer Films”, ACS Macro Letters, 8(9),1080-1085, (2019).
- R.K. Bay, S. Shimomura, Y. Liu, M. Ilton, A.J. Crosby, “Confinement Effect on Strain Localization in Glassy Polymers”, Macromolecules, 51(10), 3647-3653 (2018).
The next generation of polymeric materials will need features typically associated with biological systems, such as programmable, self-healing, and self-regenerating properties. While engineering synthetic materials with such capabilities remains a grand challenge, these properties are inherent to biofilm-forming bacteria, which use internal material factories to produce polymeric matrices with highly precise and complex structures and mechanical properties. As such, our group, the Huli Materials Lab, leverages microorganisms to fabricate engineered living materials.
The Huli Materials Lab develops characterization and processing methods to quantify and program the properties of living polymeric materials to enable functionalities desired for applications in biotechnology, sensing, and protection. Research areas in the Huli Materials Lab include: (1) extreme mechanics of biofilms, (2) spatially programming the stimuli-responsive behaviors of living polymeric composites, and (3) engineering the mechanical properties of biohybrid hydrogels.