NIR dyes (called heaters) are here in situ embedded the polymeric materials so that they could produce a strong photothermal effect upon light. The eradication of Escherichia coli was demonstrated after only 2 min safe irradiation.

Plasma parameters of radiofrequency discharge generated at low pressures in an argon-oxygen mixture addressed for biomedical surface sterilization have been optimized. Numerical results illustrate the density distributions different species and electron temperatures during electrical process. The current acting abnormal range decreases higher oxygen gas flow rates. temperature electrons drops w...

The use of atomic force microscopy (AFM) and x-ray photoelectron spectroscopy (XPS) is described to characterize the inner surfaces of pharmaceutical vials. The two type I borosilicate glasses included in this study slightly differ in their amounts of alkaline oxides. The topography and chemistry of the inner surfaces of vials are predominantly caused by the forming process. A structural and ch...

Addition of sugar surfactants, sucrose fatty acid esters and alkylpolyglucosides, to calcium phosphate cement designed for bone reconstruction is described. Thanks to their surface activity and through their adsorption at the surface of the calcium phosphate particles, they both induced a strong increase in the porosity (quantified by Image Analysis) and brought a very good workability. Other p...

Symptom-bearing plant material of the Lilliaceae, Ashodelus macrocarpus, was collected July 1991 in Greece. After surface sterilization, small segments of stem, leaf and fruit were plated on Potato Dextrose Agar (PDA, Difco) plates and incubated for 2 days at 26°C. Pure cultures could be obtained from the plates by one additional transfer to PDA plates. The culture was maintained on PDAslants a...

Surface treatment and sterilization are those critical protocols in the manufacturing of implant devices that can eventually predetermine the outcome of implantation. Biological performance of well characterized Nitinol surfaces (mechanically polished, chemically etched, aged in boiling water, heat treated, and electropolished) was evaluated using human peripheral blood lymphocyte proliferation...

PURPOSE The complex miniature architecture of dental burs and endodontic files makes precleaning and sterilization difficult. Devising a sterilization protocol for endodontic files and dental burs requires care, and some have suggested that these instruments be considered single-use devices. One purpose of this study was to determine the effectiveness of various sterilization techniques current...