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As life expectancy increases with advances in medical care during the last decades, tissue engineering of bone, blood vessels, skin and other organs has gained significant interest within the scientific community. Dealing with a complex and sensitive biological system such as the human body, the development of materials for tissue engineering and o

Visible light curing1 of photopolymerizable formulations is a widely used technique for modernapplications such as dental filling materials,2 reprography (photoresists, printing plates, integrated circuits), laser induced 3D curing, holographic recordings and nano-scale micromechanics. Due to the increasing demands of such applications, important c

In Free Radical Photopolymerization (FRP), the role of the photoinitiator (PI) is very important towards the overall polymerization efficiency.[1-4] A lot of studies have already been devoted to the PI reactivity. The PI cleavage processes have been mainly investigated through various time resolved laser spectroscopy technique, e.g. laser flash pho

The present paper focuses on the potentialities offered by derived hybrid sol-gel photomaterials to assess innovative UV-cured nanocomposites coatings. Organoalkoxysilane precursors with the general formula R'Si(OR)3 proved to be remarkably well-suited as molecular starting blocks in the synthesis of hybrid coatings. OR groups can be condensed to y

Metallic nanoparticles have special properties that may allow their use in a number of advanced functional applications. As a result, the fabrication of polymer-metal nanocomposites has attracted a great deal of attention in recent years.1-5 Nanocomposite materials consisting of dispersed metal nanoclusters in a polymeric matrix show extraordinary

Curing of relatively thin polymer films via radiation polymerization is prevalently used in different applications such as varnishes, paints, printing inks and adhesives on account of their superior properties. Polyurethane acrylate resins are among the well known binders used in UV curing industries. In most of the applications, such as head light

n the year 1974 the founder of iie, Mr. Ekkehard Kreß worked as a free-lance design engineer on electronic lamp ballasts. Milestones of his developments were:-1976 the first commercial battery ballast for 200W HMI (portable reporter lamp)-1978 1200W HMI lamp ballast (introduction at the Photokina 1978)-1983 microprocessor controlled 1200W HMI lamp

It has been shown that photoinitiators and their decomposition fragments remaining in a UVcured coating can be easily extracted by standard solvents, suggesting that the possibility of contact with food substances is high. Products with a molecular weight below 250 g/mol have been shown to be easily extracted from cured coatings. One strategy to re