**Author details**

Nelcy Della Santina Mohallem1,2\*, Marcelo Machado Viana1 , Magnum Augusto Moraes Lopes de Jesus1 , Gustavo Henrique de Magalhães Gomes1 , Luiz Fernando de Sousa Lima1 and Ellen Denise Lopes Alves<sup>2</sup>

\*Address all correspondence to: nelcy@ufmg.br

1 Laboratory of Nanostructured Materials, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil

2 REDEMAT, MG, Brazil
