Caged Pt nanoclusters exhibiting corrodibility to exert tumor-inside activation for anticancer chemotherapeutics.

Chien, Chih-Te; Yan, Jia-Ying; Chiu, Wan-Ching; Wu, Te-Haw; Liu, Chia-Yeh; Lin, Shu-Yi · Adv Mater · 2013

basic_science · Level V

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Abstract

We report on caged Pt nanoclusters that are able to exert tumor-inside activation for anticancer chemotherapeutics and to minimize systemic toxicity. By shrinking the Pt size to 1 nm, it possesses corrodibility for dissolution in weakly acidic organelles to release toxic Pt ions. The therapeutic effect in exerting tumor-inside activation is confirmed in vivo by post-modifying a pH-cleavable PEG corona and mixing it with a tumor-homing peptide for tumour suppression.

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