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.
Hungerford
Graham
G
Department of Physics, King's College London, Strand, London, UK WC2R 2LS. graham@fisica.uminho.pt
Suhling
Klaus
K
Green
Mark
M
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