@article{articlea3a49578,
title   = {Influence of negatively charged interfaces on the ground and excited state properties of methylene blue},
author = {Severino, Divinomar and Junqueira, Helena Couto and Gugliotti, Marcos and Gabrielli, Dino Santesso and Baptista, Maurício da Silva},
year = {2003},
journal   = {Photochemistry and Photobiology}
}