Functional colloidal micro-sieves assembled and guided above a channel-free magnetic striped film.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25685897.
- Also identified by DOI 10.1039/c5lc00067j.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Colloidal inclusions in lab-on-a-chip devices can be used to perform analytic operations in a non-invasive fashion. We demonstrate here a novel approach to realize fast and reversible micro-sieving operations by manipulating and transporting colloidal chains via mobile domain walls in a magnetic structured substrate. We show that this technique allows one to precisely move and sieve non-magnetic particles, to tweeze microscopic cargos or to mechanically compress highly dense colloidal monolayers.
Medical subject headings
- Colloids
- Lab-On-A-Chip Devices
- Magnets
- Microfluidic Analytical Techniques