Barbosa J. S., Costa R. R., Alonso M., Rodríguez-Cabello J. C., and Mano J. F.,  "Multi-Layered Films Containing a Biomimetic Stimuli-Responsive Recombinant Protein",  Nanoscale Research Letters, vol. 4, issue 10, pp. 1247-1253, doi:10.1007/s11671-009-9388-5, 2009.