Integration of microfluidics in smart acoustic metamaterials Krishnadas Narayanan Nampoothiri, Shubhi Bansal, Abhishek Jha and Prateek Mittal Eur. Phys. J. Spec. Top., 233 13-14 (2024) 2215-2223 Published online: 20 February 2024 DOI: 10.1140/epjs/s11734-024-01112-7