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Water soluble thiolate gold and platinum complexes as new ceramics pigments and its anticancer activity

AuthorsLaguna, Mariano ; Cerrada, Elena ; Mendía, Aránzazu; Luquin, Asunción
Issue Date2013
CitationISMEC 2013
AbstractRecently the technologies for decoration for ceramics and tiles have change spectacularly. Nowadays the old serigraphy techniques have been replaced by industrial plotters and now should be possible to decorate “a la carte” individual ceramics. For these purpose the composition of the pigments should change and, in addition, its solubility requirements. Therefore late transition metals complexes soluble in water are demanded, and in this communication we report our progress developing water-soluble gold and platinum complexes and its use as new pigments. Gold complexes are the starting point to develop magenta red as one of the four essential colours to develop the complete palette required to reproduce any object in the ceramic. The complexes should present characteristic as good stability, solubility in the ambient benign solvent used, mainly water, compatibility with the electric field applied in the plotter used, and high yield in their preparation (> 99,5%). If that it is not enough, our actual target is to afford this goal, the same properties, at much lower temperatures in order to prepare commercial ceramic at lower temperatures. In addition these gold and platinum complexes present a balance between hydrophilic and lipophilic properties. They are enough water soluble to be soluble in plasma and, at the same time, be able to pass through the phospholipid cell membrane, which are a good prerequisite to be good antiproliferative drugs against different types of cancer In these communications we present complexes of the type [Au(S-N)P] and trans- [M(S-N)2P2] M = Pt and Pd; S-N = 2-thionatepyridine and related derivatives; and P watersoluble phosphanes PTA (1,3,5-triaza-7-phosphaadamantane), DAPTA (3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1] nonane) and TPPTS (sodium triphenylphosphane trisulfonate). Both types of complexes are new ceramic pigments for magenta or metallic gold or white films and present in some cases a great anticancer activity.
DescriptionTrabajo presentado al International Symposium on Metal Complexes celebrado en Burgos (España) del 16 al 20 de junio de 2013.
Appears in Collections:(ISQCH) Comunicaciones congresos
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