TY - GEN
T1 - An electromagnetically-actuated polymer micro-pen for picoliter biological assay patterning
AU - Im, Maesoon
AU - Cho, Il Joo
AU - Yun, Kwang Seok
AU - Yoon, Euisik
PY - 2005
Y1 - 2005
N2 - This paper reports a polymer micro-pen with an integrated microchannel and a sample reservoir, which can be actuated by Lorentz force induced on an integrated metal actuator for biological assay patterning. The length, width and thickness of the micro-pen are 500μm, 120μm and 6μm, respectively. The fabricated micro-pen is successfully deflected by electromagnetic force from external permanent magnets which generates a magnetic field of 0.2T. Spring constant of the micropen is analytically estimated as 1.9N/m and the measured resonance frequency is about 7.3 kHz. The microchannel formed on this polymer micro-pen is 15μm wide and the sample reservoir is 500μm thick in the area of 300μm×300μm. Red ink is pulled up to the end point of the microchannel from the reservoir by capillary force. A red-ink-dot in diameter of 11μm has been placed on paper by the fabricated micro-pen. This demonstrates a sub-picoliter patterning of biological assay is possible.
AB - This paper reports a polymer micro-pen with an integrated microchannel and a sample reservoir, which can be actuated by Lorentz force induced on an integrated metal actuator for biological assay patterning. The length, width and thickness of the micro-pen are 500μm, 120μm and 6μm, respectively. The fabricated micro-pen is successfully deflected by electromagnetic force from external permanent magnets which generates a magnetic field of 0.2T. Spring constant of the micropen is analytically estimated as 1.9N/m and the measured resonance frequency is about 7.3 kHz. The microchannel formed on this polymer micro-pen is 15μm wide and the sample reservoir is 500μm thick in the area of 300μm×300μm. Red ink is pulled up to the end point of the microchannel from the reservoir by capillary force. A red-ink-dot in diameter of 11μm has been placed on paper by the fabricated micro-pen. This demonstrates a sub-picoliter patterning of biological assay is possible.
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M3 - Conference contribution
AN - SCOPUS:27544495680
SN - 0780389948
T3 - Digest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05
SP - 1588
EP - 1591
BT - TRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers
T2 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05
Y2 - 5 June 2005 through 9 June 2005
ER -