One-pot synthesis of PEGylated plasmonic MoO3-x hollow nanospheres for photoacoustic imaging guided chemo-photothermal combinational therapy of cancer

Tao Bao, Wenyan Yin, Xiaopeng Zheng, Xiao Zhang, Jie Yu, Xinghua Dong, Yuan Yong, Fuping Gao, Liang Yan, Zhanjun Gu, Yuliang Zhao

Research output: Contribution to journalArticle

124 Scopus citations


Engineering design of plasmonic nanomaterials as on-demand theranostic nanoagents with imaging, drug carrier, and photothermal therapy (PTT) functions have profound impact on treatment of cancer. Here, a facile 'one-pot' template-free hydrothermal route was firstly developed for synthesis of plasmonic oxygen deficiency molybdenum oxide hollow nanospheres functionalized by poly(ethylene glycol) (PEG-MoO3-x HNSs). The as-prepared PEG-MoO3-x HNSs not only have good biocompatibility but also exhibit obvious localized surface plasmon resonance (LSPR) absorption in the near-infrared (NIR) region. Especially, due to its intrinsic mesoporous properties and effective photothermal conversion efficiency upon 808-nm NIR laser irradiation, the PEG-MoO3-x HNSs can be applied as a pH/NIR laser dual-responsive camptothecin (CPT) drug delivery nanoplatform for chemotherapy as well as PTT to cancer cells. A remarkably improved synergistic therapeutic effect to pancreatic (PANC-1) tumor-bearing mice was obtained compared to the result of chemotherapy or PTT alone. Apart from its application for drug delivery, the PEG-MoO3-x HNSs can also be employed as an effective contrast nanoagent for photoacoustic (PAT) imaging because of its high NIR absorption, making it promising as a theranostic nanoagent for PAT imaging-guided chemo-photothermal combinational cancer therapy in the nanomedicine field.

Original languageEnglish (US)
Pages (from-to)11-24
Number of pages14
StatePublished - 2016


  • Drug delivery
  • Hollow nanospheres
  • Molybdenum oxides
  • One-pot
  • Theranostics

ASJC Scopus subject areas

  • Bioengineering
  • Ceramics and Composites
  • Biophysics
  • Biomaterials
  • Mechanics of Materials

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