John Griffiths

Research section: Colour Science

KEYWORDS Dye synthesis Speciality dyes Bioactive dyes Dye photochemistry

RESEARCH INTERESTS

Dye chemistry (synthesis, photochemistry and applications). Colour and constitution (chromophore design and MO predictions). Speciality dyes (fluorescent, indicators, diagnostic, photochromic, thermochromic, infrared, laser dyes). Colour change dyes (sensors, security printing). Ink-jet colorants. Dye photochemistry. Dyes as sensitisers in cancer photodynamic therapy. Dyes as photo-antimicrobial agents.

SELECTED PUBLICATIONS

S.A. Gorman, A.Bell, J. Griffiths, D. Roberts, S.B. Brown, The synthesis and properties of unsymmetrical 3,7-diaminophenothiazin-5-ium iodide salts: Potential photosensitisers for photodynamic therapy. Dyes and Pigments (2006), 71(2), 153-160.

M R Venner, A D Case, D J Fulker, J Griffiths, J Mama. Lasing properties of novel near-infrared laser dyes. Proceedings of SPIE-The International Society for Optical Engineering (2005), 5707(Solid State Lasers XIV: Technology and Devices), 227-236.

J.Griffiths and W. J.Lee. Synthesis, light absorption and fluorescence properties of new thiazole analogues of the xanthene dyes. Dyes and Pigments, 57, (2003), 107-114.

J Griffiths and S Park, Facile preparative redox chemistry of bis(4-dialkylaminophenyl)squaraine dyes, Tetrahedron Letters, 2002, vol. 43, pp. 7669-7671