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Mariam Pogosova PhD, research scientist June 23, 2016 13.00 – 14.30 Room 148 TPOC-3 |
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SEMINAR ABSTRACT:Origin of the human culture lays in the Earth nature and the most of culture subjects were inspired by the nature’s colorful beauty. Human beings started to use some primitive pigments thousands years ago and now almost every hand-made or manufactured object is colored somehow. Ordinary consumer wouldn’t see the huge ecological problem disguised under the brilliant color. The scary truth is that the main part of industrially produced yellow pigments is based on the toxic lead, cadmium and chromium compounds. The new kind of inorganic pigments – copper-doped apatites – was discovered in Lomonosov MSU in 2001. Copper-doped strontium hydroxyapatite is already used as the bright purple pigment. Thus the main vector of the presented research is the definition of factors which determine the color tint to achieve less- or nontoxic yellow pigment. Achieved results may lay the foundation of the wide range of research projects: from the further pigment investigation and optimization up to the apatite coatings for medical applications, fuel cell membrane materials etc. |
SPEAKER INTRODUCTION:Pogosova’s research focuses on preparation and investigation of the new colored materials based on apatite-type matrix. She authored 1 monograph, 6 research papers and 16 conference reports in the Ukraine, France and Russia. She discovered the new chromophore formation within copper-doped apatites and designed the theoretical model which describes this process. In addition to the main scientific trend she established the luminescent centers in europium-doped apatites and described the lithium introduction into the apatite structure. Most of analyzed materials were synthesized and characterized for the first time. Pogosova’s results and proposed models led to a recently started scientific project devoted to the molecular magnets research. Pogosova defended her PhD at 2015 in Lomonosov Moscow State University. During her PhD studentship she guided 4 students with thematic course-works and had the 1 semester teaching practice. |