Unknown

Dataset Information

0

Electropermanent magnet actuation for droplet ferromicrofluidics.


ABSTRACT: Droplet actuation is an essential mechanism for droplet-based microfluidic systems. On-demand electromagnetic actuation is used in a ferrofluid-based microfluidic system for water droplet displacement. Electropermanent magnets (EPMs) are used to induce 50 mT magnetic fields in a ferrofluid filled microchannel with gradients up to 6.4 × 104 kA/m2. Short 50 µs current pulses activate the electropermanent magnets and generate negative magnetophoretic forces that range from 10 to 70 nN on 40 to 80 µm water-in-ferrofluid droplets. Maximum droplet displacement velocities of up to 300 µm/s are obtained under flow and no-flow conditions. Electropermanent magnet-activated droplet sorting under continuous flow is demonstrated using a split-junction microfluidic design.

SUBMITTER: Padovani JI 

PROVIDER: S-EPMC5003119 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Electropermanent magnet actuation for droplet ferromicrofluidics.

Padovani José I JI   Jeffrey Stefanie S SS   Howe Roger T RT  

Technology 20160513 2


Droplet actuation is an essential mechanism for droplet-based microfluidic systems. On-demand electromagnetic actuation is used in a ferrofluid-based microfluidic system for water droplet displacement. Electropermanent magnets (EPMs) are used to induce 50 mT magnetic fields in a ferrofluid filled microchannel with gradients up to 6.4 × 10<sup>4</sup> kA/m<sup>2</sup>. Short 50 µs current pulses activate the electropermanent magnets and generate negative magnetophoretic forces that range from 10  ...[more]

Similar Datasets

| S-EPMC2932710 | biostudies-literature
| S-EPMC7254367 | biostudies-literature
| S-EPMC5691075 | biostudies-literature
| S-EPMC2847640 | biostudies-literature
| S-EPMC9201745 | biostudies-literature
| S-EPMC3364810 | biostudies-other
| S-EPMC2717583 | biostudies-other
2021-02-28 | GSE154120 | GEO
| S-EPMC8011811 | biostudies-literature
| S-EPMC6444740 | biostudies-literature