Advertisement

A Plasmon-Assisted Optofluidic (PAOF) System for Measuring the Photothermal Conversion Efficiencies of Gold Nanostructures and Controlling an Electrical Switch

Authors

  • Dr. Jie Zeng,

    1. Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63130 (USA)
    2. Current address: Hefei National Laboratory for Physical, Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, Anhui (P.R. China)
    Search for more papers by this author
  • David Goldfeld,

    1. Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63130 (USA)
    Search for more papers by this author
  • Prof. Younan Xia

    Corresponding author
    1. Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63130 (USA)
    2. Current address: The Wallace H. Coulter Department of Biomedical Engineering, School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332 (USA)
    • Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO 63130 (USA)
    Search for more papers by this author

  • This work was supported in part by a research grant from NCI (1R01 CA138527), an NIH Director’s Pioneer Award (DP1, OD000798), and startup funds from Washington University in St. Louis and Georgia Institute of Technology. Y.X. was also partially supported by the World Class University (WCU) program through the National Research Foundation of Korea, funded by the Ministry of Education, Science and Technology (R32-20031).

Abstract

original image

“Photothermometer”: A PAOF system was constructed using a diode laser as the energy source, an aqueous suspension of plasmonic nanostructures as the photothermal transducer, and a glass capillary for measuring the volumetric expansion of the suspension (see picture). The suspension could be driven to move up the capillary by more than 30 mm and be used to control the operation of an electrical switch.

Ancillary