Ultra Violet Radiation Regulates Wettability Property on PMMA

The contact angle depends on UV exposure. The UV radiation could be employed to functionalize PMMA wettability, the structure uninfluenced radiation mode being available at exposure < 60 min

Influence of Bioimplant Surface Electrical Potential on Osteoblast Behavior and Bone Tissue Formation

Following the general adhesion theory the bone cells attachment to the bioimplant could be controlled by its surface electrical potential. The latter was adjusted both by deposition of the electrical charge and the surface microgeometry. It was demonstrated that a relief of the surface had an influence on the potential at the nanoscale and could be engineered to promote cell adhesion. Both deposition of the charge and engineering of the potential demonstrated influence on human osteoblast attachment and bone tissue formation. The surface areas of the electrical potential demonstrated a correlation length effecting fabrication of the bone tissue.

Surface Properties of Ocular Prostheses Material Change under UV Influence

Poly methyl metha acrylate (PMMA) is widely used for eye prostheses and contact lenses. These devices are worn outdoors and, therefore, exposed to the ultraviolet radiation of Sun. This may cause changes in PMMA properties and bring discomfort to the patient, for instance, because of polymer surface wettability alteration. Namely, alteration of wettability of PMMA due to ultraviolet radiation and correlation of wettability with other surface properties is under the focus of the present research. Wettability of PMMA changes due to UV irradiation in irregular manner. Besides, good correlation existed between wettability, electron work function and peculiarities of the absorption spectra of PMM

PMMA Wettability Caused by Ultraviolet Radiation

The article is targeted to explore ultraviolet radiation (UV) influence on PMMAf or eye prostheses. UV beingt he Sun lightc omponenta nd could effect PMMA surface that in turn contributesi nteractionw ith tear. PMMA wettabilityw as poweredb y UV