1. CNRS UMR 7021, Laboratoire de Bioimagerie et Pathologies, University of Strasbourg, 67401 Illkirch Cedex, France
2. Laboratory of Photonic Systems and Nonlinear Optics, Institute of Optics and Fine Mechanics, University of Setif 1, 19000 Setif, Algeria
3. CNRS UMR 7199, Laboratoire de Conception et Application de Molécules Bioactives, University of Strasbourg, 67401 Illkirch Cedex, France