TY - GEN
T1 - Surface plasmon tweezers-induced nanoparticle patterning in microfluidics
AU - Shi, J.
AU - Zheng, Y. B.
AU - Xi, X.
AU - Lin, S. S.
AU - Du, J.
AU - Tittmann, B. R.
AU - Huang, T. J.
PY - 2009
Y1 - 2009
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=71449120718&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=71449120718&partnerID=8YFLogxK
U2 - 10.1109/SENSOR.2009.5285791
DO - 10.1109/SENSOR.2009.5285791
M3 - Conference contribution
AN - SCOPUS:71449120718
SN - 9781424441938
T3 - TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
SP - 1586
EP - 1589
BT - TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
T2 - TRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Y2 - 21 June 2009 through 25 June 2009
ER -