Cellulose Nanocrystal: Mind the Microgap in Iridescent Cellulose Nanocrystal Films (Adv. Mater. 2/2017) - Fernandes, Susete N.; Almeida, Pedro L.; Monge, Nuno; Aguirre, Luis E.; Reis, Dennys; Oliveira, Cristiano Luis Pinto de; Figueiredo Neto, Antonio Martins; Pieranski, Pawel; Godinho, Maria H. (Advanced Materials, 2017)