[1] Univ Nacl Autonoma Mexico, Inst Quim, Dept Prod Nat, Lab 2 10, Mexico City 04510, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Lab 6, UMIEZ, Fac Estudios Superiores Zaragoza, 2do Piso, Mexico City 09230, DF, Mexico
[3] Univ Nacl Autonoma Mexico, Lab Microscopia Elect, Dept Biol Celular, Fac Ciencias, Mexico City 04510, DF, Mexico