Biomaterials based on Juniperus communis (JC) are potential organic molecular media to be used for advanced applications in new generation nanobiotechnology and nanomedicine.The concept of the free-volume structure of materials and its interpretation is a very useful and actual idea in the physics of disordered systems and especially of organic polymers.It is generally accepted that free volume determines the polymer dynamics, which is one of the crucial aspects in mechanical and transport phenomena.