Luminescence enhancement of a europium containing polyoxometalate on interaction with bovine serum albumin.
Polyoxometalates (POMs) are useful in a wide range of biological applications, whilst rare-earth based POMs provide a potentially new biological optical label. As the luminescence of rare-earth materials is known to be sensitive to the environment, we report on investigations into the photophysics of a rare-earth (europium) POM with the protein bovine serum albumin (BSA). Via the use of luminescence anisotropy and time-resolved measurements the europium decatungstate was found to interact with BSA, which was accompanied by an observed enhancement in its luminescence.
Department of Physics, King's College London, Strand, London, UK WC2R 2LS. graham@fisica.uminho.pt
Graham
G
Hungerford
Klaus
K
Suhling
Mark
M
Green
D000818:Animals; D002417:Cattle; D005063:Europium / Q000737:chemistry*; D008163:Luminescent Measurements; D012710:Serum Albumin, Bovine / Q000737:chemistry*; D017973:Tungsten Compounds / Q000737:chemistry*
D017973:Tungsten Compounds; D012710:Serum Albumin, Bovine; D005063:Europium