Transformation of the dermal collagen framework under laser heatingAbstract The aim of this study was to compare between the changes undergone by the dermal collagen framework when heated by IR laser radiation and by traditional means and to reveal the specific features of the dermal matrix modification under moderate IR laser irradiation. Rabbit skin specimens were heated to 50, 55, 60 and 65°C in a calorimeter furnace and with a 1.68‐μm fiber Raman laser. The proportion of the degraded collagen macromolecules- Skin and subcutaneous fat morphology alterations under the LED or laser treatment in rats in vivoAbstract The main objective of this work is to quantify the impact of photodynamic/photothermal treatment by using visible LED and NIR laser irradiation through the skin of subcutaneous fat in vivo followed up by tissue sampling and histology. The optical method may provide reduction of regional or site‐specific accumulations of abdominal or subcutaneous adipose tissue precisely and least‐invasively by inducing cell apoptosis and controlled necr
- Naturally safe: cellular noise for document securityABSTRACT Modern document protection relies on the simultaneous combination of many optical features with micron and submicron structures, whose complexity is the main obstacle for unauthorized copying. In that sense, documents are best protected by the diffractive optical elements generated lithographically and mass‐produced by embossing. The problem is that the resulting security elements are identical, facilitating mass‐production of both orig
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