Fluorescent poly(lactic acid) particles  

• consist of poly(D,L-lactic acid) with a molecular weight of 17.000 Da,

• are available with diameters of 250 nm and 500 nm  in small size distributions and with mean diameters of 2 µm, 30 µm and 100 µm in broader size distributions,

• can be loaded with drugs on request,

• are offered with red fluorescence ( -red, excitation: 552 nm, emission: 580 nm) and green fluorescence (-green, excitation: 475 nm, emission: 510 nm).