Near infrared and red light absorbing composite resin particles
AssigneeAgfa-Gevaert
InventorsViktor Merz, Johan Loccufier
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Abstract
A composite resin particle comprising a dye and a resin selected from the group consisting of poly(amino acids), polyphosphazenes, polysaccharide derivatives, poly(esters), poly(ortho esters), poly(cyano-acrylates) and copolymers thereof, characterized in that the composite resin particle has an absorption maximum in a range from 600 nm to 750 nm and that the average particle size of the particles is between 0.03 μm and 3 μm. The composite resin particles are suitable for opto-medical applications such as phototherapies including photothermal therapy (PTT), photodynamic therapy (PDT), chemo-photodynamic nanotherapeutics and fluorescence medical imaging.
Claims21
1-17. (canceled)
A composite resin particle comprising a dye and a resin selected from the group consisting of poly(amino acids), polyphosphazenes, polysaccharide derivatives, poly(esters), poly(ortho esters), poly(cyano-acrylates), and copolymers thereof, characterized in that the composite resin particle has an absorption maximum in a range from 600 nm to 750 nm, wherein the absorption maximum is measured on an aqueous dispersion of the composite resin particle at a concentration of 0.19 mg/mL, and further characterized in that the average particle size of the particles is between 0.03 μm and 3 μm.
Dependencies are inferred from the claim text.