https://publications.mpi-cbg.de/Nagelberg_2017_6800.pdf (Any fulltext)
Nagelberg, S. N., Zarzar, L. D., Nicolas, N., Subramanian, K., Kalow, J. A., Sresht, V., et al. (2017). Reconfigurable and responsive droplet-based compound micro-lenses. Nature communications, 8: 14673. doi:10.1038/ncomms14673.