A novel approach to the size characterization and separation of bio-particles is presented. Fluid-flow is not required to activate the separation since moving dielectrophoretic cages (MDC) [3] are used. By sequencing a set of cage patterns in a micro-fabricated chip, a movement can be induced or not on bio-particles depending on the ratio between the dielectrophoretic (DEP) mobility [5] and the cage-speed, causing selective particle transport. The effectiveness of the approach has been proven by experimental results with different sized beads. This approach can be easily combined with optical or impedance measurement for on-chip quantification of the mixture constituents for a miniaturized, automatic detection system.
Dielectrophoretic cage-speed separation of bio-particles / G. Medoro; P. Vulto; L. Altomare; M. Abonnenc; A. Romani; M. Tartagni; R. Guerrieri; N. Manaresi. - STAMPA. - (2004), pp. 76-79. (Intervento presentato al convegno IEEE Sensors 2004 : The 3rd IEEE Conferenece on Sensoors tenutosi a Vienna Austria nel 24-27 october 2004).
Dielectrophoretic cage-speed separation of bio-particles
MEDORO, GIANNI;ALTOMARE, LUIGI;ROMANI, ALDO;TARTAGNI, MARCO;GUERRIERI, ROBERTO;MANARESI, NICOLO'
2004
Abstract
A novel approach to the size characterization and separation of bio-particles is presented. Fluid-flow is not required to activate the separation since moving dielectrophoretic cages (MDC) [3] are used. By sequencing a set of cage patterns in a micro-fabricated chip, a movement can be induced or not on bio-particles depending on the ratio between the dielectrophoretic (DEP) mobility [5] and the cage-speed, causing selective particle transport. The effectiveness of the approach has been proven by experimental results with different sized beads. This approach can be easily combined with optical or impedance measurement for on-chip quantification of the mixture constituents for a miniaturized, automatic detection system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
