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Porous silica coated gold nanocages for chemo-photothermal combined therapy

  • Original Paper: : Sol-gel and hybrid materials for biological and health (medical) applications
  • Published:
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Abstract

The combination therapy that combines drug delivery with other treatments (e.g., photothermal therapy) has great advantages in treating tumors. Here, we prepared a promising versatile platform based on gold nanocages (Au NCs) poly (N-isopropylacrylamide) (PNIPAM) entrapped porous silica core−shell nanostructure (Au@SiO2-PNIPAM). This system not only served as a container for therapeutic drugs, but also had high photothermal conversion efficiency. The thermosensitive PNIPAM wrapping around porous silica acted as a gatekeeper to encapsulate the drug molecules within the channels of Au@SiO2-PNIPAM carrier. Under the light irradiation, Au NCs could absorb near-infrared (NIR) light and convert it into heat, which would promote the swelling of PNIPAM layer for releasing drug. The Au@SiO2-PNIPAM displays pH/light-responsive drug release and excellent photothermal-chemical combined therapeutic effect.

Porous silica coated Au nanocages (Au NCs) (Au@SiO2) carriers were designed and prepared for drug release.

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Authors and Affiliations

  1. National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, China

    Jun Hou, Yunyun Chen, Yanbao Zhao, Xueyan Zou & Lei Sun

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  1. Jun Hou
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  2. Yunyun Chen
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  3. Yanbao Zhao
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  4. Xueyan Zou
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  5. Lei Sun
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Correspondence to Yanbao Zhao.

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Hou, J., Chen, Y., Zhao, Y. et al. Porous silica coated gold nanocages for chemo-photothermal combined therapy. J Sol-Gel Sci Technol 100, 562–570 (2021). https://doi.org/10.1007/s10971-021-05672-1

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  • DOI: https://doi.org/10.1007/s10971-021-05672-1

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