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Research Article

Calcium carbonate-doxorubicin@silica-indocyanine green nanospheres with photo-triggered drug delivery enhance cell killing in drug-resistant breast cancer cells

Wei Wang1,§, Yang Zhao1,§, Bei-Bei Yan1, Liang Dong1, Yang Lu2, Shu-Hong Yu1 ( )
Division of Nanomaterials & ChemistryHefei National Research Center for Physical Sciences at the MicroscaleCollaborative Innovation Center of Suzhou Nano Science and TechnologyDepartment of ChemistryCAS Centre for Excellence in NanoscienceHefei Science Centre of CASUniversity of Science and Technology of ChinaHefei230026China
School of Chemistry and Chemical EngineeringHefei University of TechnologyHefei230009China

§ Wei Wang and Yang Zhao contributed equally to this work.

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Abstract

Calcium carbonate-doxorubicin@silica-indocyanine green nanospheres with high uniformity and monodispersity were designed and synthesized, in order to provide a photo-triggered strategy for drug-resistant cancer therapy. Under near-infrared laser irradiation, the nanospheres transformed laser power into local heat and reactive oxygen species via the connected indocyanine green molecule, thus exhibiting photothermal and photodynamic effects. Moreover, the photo-triggered drug release based on calcium-assisted silica degradation was observed, endowing the nanospheres with chemotherapeutic properties. Finally, combined therapeutic effects against drug-resistant human breast cancer cells were successfully obtained. These photo-triggered materials based on calcium carbonate could provide a promising platform for enhanced multimodal cancer therapies.

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Keywords

calcium carbonate-based structuresphotothermal therapyphotodynamic therapycombined therapeutic effects

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Nano Research
Volume 11 Issue 6,
June 2018
Pages 3385-3395
DOI: 10.1007/s12274-017-1950-3

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Cite this article:
Wang W, Zhao Y, Yan B-B, et al. Calcium carbonate-doxorubicin@silica-indocyanine green nanospheres with photo-triggered drug delivery enhance cell killing in drug-resistant breast cancer cells. Nano Research, 2018, 11(6): 3385-3395. https://doi.org/10.1007/s12274-017-1950-3
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Received: 10 October 2017
Revised: 02 December 2017
Accepted: 03 December 2017
Published: 22 May 2018
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2017