Searching and identifying microplastics in marine environment by digital holography⋆ F. Merola, P. Memmolo, V. Bianco, M. Paturzo, M. G. Mazzocchi and P. Ferraro Eur. Phys. J. Plus, 133 9 (2018) 350 Published online: 05 September 2018 DOI: 10.1140/epjp/i2018-12190-y