Ultrasound-Induced Reactive Oxygen Species Mediated Therapy and Imaging Using a Fenton Reaction Activable Polymersome

Wei Peng Li, Chia Hao Su, Yi Ching Chang, Yu Jiung Lin, Chen Sheng Yeh

Research output: Contribution to journalArticlepeer-review

196 Citations (Scopus)

Abstract

Ultrasound techniques have been extensively employed for diagnostic purposes. Because of its features of low cost, easy access, and noninvasive real-time imaging, toward clinical practice it is highly anticipated to simply use diagnostic ultrasound to concurrently perform imaging and therapy. We report a H2O2-filled polymersome to display echogenic reflectivity and reactive oxygen species-mediated cancer therapy simply triggered by the microultrasound diagnostic system accompanied by MR imaging. Instead of filling common perfluorocarbons, the encapsulation of H2O2 in H2O2/Fe3O4-PLGA polymersome provides O2 as the echogenic source and OH as the therapeutic element. On exposure to ultrasound, the polymersome can be easily disrupted to yield OH through the Fenton reaction by reaction of H2O2 and Fe3O4. We showed that malignant tumors can be completely removed in a nonthermal process.

Original languageEnglish
Pages (from-to)2017-2027
Number of pages11
JournalACS nano
Volume10
Issue number2
DOIs
Publication statusPublished - 2016 Feb 23

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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