1. Mechanics and Adapted Materials Laboratory (LAMMA), University of Douala, Douala, Cameroon
2. Mechanic Laboratory (LM), Doctoral Training Unit in Engineering Sciences (UFD-SI), University of Douala, Douala, Cameroon
3. Department of Mechanical Engineering, ENSET, University of Douala, Douala, Cameroon
4. Groupe de Recherche des Matériaux Innovants (GRMI), Université de Douala, Douala, Cameroun
5. CETELOR, Université de Lorraine, France
6. Department of Pharmaceutical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Yaoundé 1, Yaoundé, Cameroon