1. School
of Chemical Engineering, University of Campinas, UNICAMP, Campinas, SP 13083-970, Brazil
2. Brazilian
Synchrotron Light Laboratory, CNPEM, Campinas, São Paulo 13083-100, Brazil
3. Institute
of Physics, University of São Paulo, USP, São Paulo, SP 05508, Brazil
4. Department
of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, SP 13083-970, Brazil