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Dumbbell-like Au-Fe3O4 nanoparticles for target-specific platin delivery.


ABSTRACT: Dumbbell-like Au-Fe(3)O(4) nanoparticles (NPs) were made and coupled with Herceptin and a platin complex. The platin-Au-Fe(3)O(4)-Herceptin NPs act as a target-specific nanocarriers for delivery of platin into Her2-positive breast cancer cells (Sk-Br3) with strong therapeutic effects. The conjugate has a half-maximal inhibitory concentration (IC(50)) toward Sk-Br3 cells of 1.76 microg of Pt/mL, which is lower than that needed for cisplatin (3.5 microg/mL). The work demonstrates that the dumbbell-like Au-Fe(3)O(4) NPs are promising nanocarriers for highly sensitive diagnostic and therapeutic applications.

SUBMITTER: Xu C 

PROVIDER: S-EPMC2671397 | biostudies-literature | 2009 Apr

REPOSITORIES: biostudies-literature

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Dumbbell-like Au-Fe3O4 nanoparticles for target-specific platin delivery.

Xu Chenjie C   Wang Baodui B   Sun Shouheng S  

Journal of the American Chemical Society 20090401 12


Dumbbell-like Au-Fe(3)O(4) nanoparticles (NPs) were made and coupled with Herceptin and a platin complex. The platin-Au-Fe(3)O(4)-Herceptin NPs act as a target-specific nanocarriers for delivery of platin into Her2-positive breast cancer cells (Sk-Br3) with strong therapeutic effects. The conjugate has a half-maximal inhibitory concentration (IC(50)) toward Sk-Br3 cells of 1.76 microg of Pt/mL, which is lower than that needed for cisplatin (3.5 microg/mL). The work demonstrates that the dumbbell  ...[more]

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