Patent ID: 8828975

Claim:
A phosphate-containing nanoparticle delivery vehicle of the formula: wherein NP is a nanoparticle; R 1 is an anticancer drug molecule selected from the group consisting of cytochalasin B, cytochalasin D, cytochalasin A, cytochalasin E, latrunculin, Phalloidin, actinomycin, doxorubicin, daunorubicin, valrubicin, idarubicin, 6-Mercaptopurine (6-MP), Azathioprine (AZA), Methotrexate, 6-thioguanine (6-TG), thioguanine, 6-thioinosine and thiouridine; R 2 is a member selected from the group consisting of OH, halogen, C1-C5 alkoxy group; each of X, Y is a member selected from the group consisting of NH, O and S; and Z is a member selected from the group consisting of O and S.