Fractal behavior of humic substances evaluated by confocal laser scanning microscopy (CLSM) and fluorescence lifetime imaging - Milori, Debora Marcondes Bastos Pereira; Mounier, Stephane; Villas Boas, Paulino Ribeiro; Tadini, Amanda M.; Ohana, Nayre; Falvo, Mauricio; Bruno, Odemir Martinez; Guimarães, Francisco Eduardo Gontijo (Materials Research Society Fall Meeting and Exhibit, 2016)