-Raman Determination of Essential Oils' Constituents from Distillates and Leaf Glands of Plants.

A novel, inexpensive and simple experimental setup for collecting -Raman spectra of volatile liquids in very small quantities was developed. It takes advantage of capillary forces to detain minute volatile liquid volumes. Spectra of volatile and even scattering or absorbing media can be measured more effectively.

Novel electrospun poly-hydroxybutyrate scaffolds as carriers for the wound healing agents alkannins and shikonins.

The aim of this study was to investigate the potential of novel electrospun fiber mats loaded with alkannin and shikonin (A/S) derivatives, using as carrier a highly biocompatible, bio-derived, eco-friendly polymer such as poly[(R)-3-hydroxybutyric acid] (PHB). PHB fibers containing a mixture of A/S derivatives at different ratios were successfully fabricated via electrospinning. Αs evidenced by scanning electron microscopy, the fibers formed a bead-free mesh with average diameters from 1.

The Russian avant-garde painting palette--documentary and physicochemical study of inorganic colorants.

In the present article an attempt is being made to elucidate the inorganic colorants encountered in the Russian avant-garde painting palette by a combined art historical, documentary and physicochemical investigation; and to examine the influence of environmental factors on the chromatic profile originally sought by the artist. The overall approach based on written sources is confirmed by measurements on representative paintings from the Costakis Collection in the State Museum for Contemporary Art, Thessaloniki. The documentary research deals with the influences of Orthodox iconography, folkloric art, and occidental modernist tendencies on the Russian avant-garde palette; and is studying the effects of contradictory historical processes in the chromatic profile of individual paintings.