Reversible Phase Transfer of Nanoparticles Based on Photoswitchable Host-Guest Chemistry

Creative Commons License

Peng L., YOU M., Wu C., Han D., Ocsoy I. , Chen T., ...More

ACS NANO, vol.8, no.3, pp.2555-2561, 2014 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 3
  • Publication Date: 2014
  • Doi Number: 10.1021/nn4061385
  • Title of Journal : ACS NANO
  • Page Numbers: pp.2555-2561
  • Keywords: azobenzene, cyclodextrin, host-guest systems, phase transfers, photoresponsive systems, GOLD NANOPARTICLES, MOLECULAR RECOGNITION, AZOBENZENE POLYMERS, QUANTUM DOTS, CYCLODEXTRIN, CATALYSIS, SYSTEMS, TEMPERATURE, RELEASE, DRIVEN


An azobenzene-containing surfactant was synthesized for the phase transfer of a-cyclodextrin (alpha-CD)-capped gold nanoparticles between water and toluene phases by host guest chemistry. With the use of the photoisomerization of azobenzene, the reversible phase transfer of gold nanoparticles was realized by irradiation with UV and visible light. Furthermore, the phase transfer scheme was applied for the quenching of a reaction catalyzed by gold nanoparticles, as well as the recovery and recycling of the gold nanoparticles from aqueous solutions. This work will have significant impact on materials transfer and recovery in catalysis and biotechnological applications.