Tailored Synthesis of Octopus-type Janus Nanoparticles for Synergistic Actively-Targeted and Chemo-Photothermal Therapy

Angew Chem Int Ed Engl. 2016 Feb 5;55(6):2118-21. doi: 10.1002/anie.201510409. Epub 2016 Jan 6.

Abstract

A facile, reproducible, and scalable method was explored to construct uniform Au@poly(acrylic acid) (PAA) Janus nanoparticles (JNPs). The as-prepared JNPs were used as templates to preferentially grow a mesoporous silica (mSiO2 ) shell and Au branches separately modified with methoxy-poly(ethylene glycol)-thiol (PEG) to improve their stability, and lactobionic acid (LA) for tumor-specific targeting. The obtained octopus-type PEG-Au-PAA/mSiO2 -LA Janus NPs (PEG-OJNP-LA) possess pH and NIR dual-responsive release properties. Moreover, DOX-loaded PEG-OJNP-LA, upon 808 nm NIR light irradiation, exhibit obviously higher toxicity at the cellular and animal levels compared with chemotherapy or photothermal therapy alone, indicating the PEG-OJNP-LA could be utilized as a multifunctional nanoplatform for in vitro and in vivo actively-targeted and chemo-photothermal cancer therapy.

Keywords: active targeting; chemo-photothermal therapy; dual-stimuli responsive release; octopus-type Janus nanoparticles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylic Resins / chemistry
  • Acrylic Resins / pharmacology
  • Animals
  • Cell Death / drug effects
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Disaccharides / chemistry
  • Disaccharides / pharmacology
  • HeLa Cells
  • Hep G2 Cells
  • Humans
  • Infrared Rays
  • Lasers
  • Mice
  • Mice, Inbred Strains
  • Nanoparticles / chemistry*
  • Neoplasms, Experimental / drug therapy*
  • Neoplasms, Experimental / pathology
  • Organogold Compounds / chemical synthesis
  • Organogold Compounds / chemistry
  • Organogold Compounds / pharmacology*
  • Phototherapy
  • Polyethylene Glycols / chemistry
  • Polyethylene Glycols / pharmacology
  • Silicon Dioxide / chemistry
  • Silicon Dioxide / pharmacology
  • Structure-Activity Relationship
  • Temperature*

Substances

  • Acrylic Resins
  • Disaccharides
  • Organogold Compounds
  • Polyethylene Glycols
  • carbopol 940
  • lactobionic acid
  • Silicon Dioxide