Patent ID: 8337720

Claim:
A method for producing capped nanoparticles comprising capping at least one nanoparticle with a compound of formula XO—(CH 2 CH 2 O) m —Y, wherein X is selected from the group consisting of H, CH 3 , and —CH 2 CO 2 H, Y is selected from the group consisting of p-toluene sulphonate, carboxyl, —CH 2 CO 2 H, -PhCO 2 H, —SiPh 2 t Bu, phenyl, —CH 2 Ph and phthalamide, and m is an integer, and wherein the capping comprises exchanging at least some existing ligands coating the nanoparticle for the compound of formula XO—(CH 2 CH 2 ) m —Y.