Surface Coordination of Black Phosphorus with Modified Cisplatin

Jianing Zhang, Yue Ma, Kuan Hu, Yuan Feng, Si Chen, Xiaoyang Yang, Jacky Fong-Chuen Loo, Han Zhang, Feng Yin*, Zigang Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Black phosphorus (BP) is a two-dimensional (2D) nanomaterial with high charge-carrier mobility, a tunable direct bandgap, and a unique in-plane anisotropic structure; however, the easiness of BP oxidation into PxOy species in ambient conditions largely limits its applications. In this study, modified cisplatin-Pt-NO3 [Pt(NH3)2(NO3)2] is used for surface coordination with BP nanosheets to generate Pt@BP, which maintains the surface morphology and properties of BP nanosheets for more than 24 h in ambient conditions. In addition, Pt@BP interacts with DNA both in vitro and in cell. Pt@BP shows a good cellular uptake rate and significantly increases the drug sensitivity of cisplatin-resistant cancer cell lines (A2780 and HepG2) compared with unmodified cisplatin. Our study is the first attempt to stabilize bare BP with cationic cisplatin species, and the generated Pt@BP could be used for potential synergistic photothermal/chemotherapy of cisplatin-resistant cancer.

Original languageEnglish
Pages (from-to)1658-1664
Number of pages7
JournalBioconjugate Chemistry
Volume30
Issue number6
DOIs
Publication statusPublished - 19 Jun 2019
Externally publishedYes

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