Blue 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,

• are offered with blue colour (No toxic effects come from the encapsulated dye.),

• can be loaded with drugs on request.