Surface plasmon tweezers-induced nanoparticle patterning in microfluidics

J. Shi, Y. B. Zheng, X. Xi, S. S. Lin, J. Du, B. R. Tittmann, T. J. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Here we report on dynamic patterning of nanoparticles in microfluidic channels using patterned surface plasmon polaritons (SPP) from a gold thin film with highly ordered nanohole arrays. In particular, the constructive interference of SPPs from neighboring holes leads to a periodic distribution of SPP intensities. Such a SPP distribution drives the nanoparticles into positions of minimal SPP intensities, where the net force is minimal and nanoparticles are most stable. This distribution comprises the patterning of nanoparticles. This technique is simple and cost-effective in fabrication, and only requires a laser intensity of 1/10,000 of that used in conventional optical tweezers, implying less damage to the targeted nanoparticles.

Original languageEnglish (US)
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages1586-1589
Number of pages4
DOIs
StatePublished - Dec 11 2009
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: Jun 21 2009Jun 25 2009

Publication series

NameTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

OtherTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
CountryUnited States
CityDenver, CO
Period6/21/096/25/09

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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