Shaping and transporting diamagnetic sessile drops

Dodoo, Jennifer and Stokes, Adam A. (2019) Shaping and transporting diamagnetic sessile drops. Biomicrofluidics, 13 (6). 064110. ISSN 1932-1058

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    Abstract

    Electromagnetic fields are commonly used to control small quantities of fluids in microfluidics and digital microfluidics. Magnetic control techniques are less well studied than their electric counterparts, with only a few investigations into liquid diamagnetism. The ratio of magnetic to surface energy (magnetic Bond number B m) is an order of magnitude smaller for diamagnetic drops (B m ≈-0.3 at 1.2 T applied field) than for paramagnetic drops (B m ≈ 9.0 at 1.2 T applied field). This weaker interaction between the magnetic field and the diamagnetic drop has led to the phenomenon being overlooked in digital microfluidics. Here, we investigate shaping and transport of diamagnetic drops using magnetostatic fields. Our findings highlight how diamagnetic fluids can be used as a novel tool in the toolbox of microfluidics and digital microfluidics.

    Creators(s): Dodoo, Jennifer ORCID logoORCID: https://orcid.org/0000-0001-6418-2673 and Stokes, Adam A.;
    Item type:Article
    ID code:72259
    Keywords:microfluidics, digital microfluidics, sessile drops, Bioengineering, Biomedical Engineering, Materials Science(all), Condensed Matter Physics, Fluid Flow and Transfer Processes, Colloid and Surface Chemistry
    Subjects:Technology > Engineering (General). Civil engineering (General) > Bioengineering
    Department:Faculty of Engineering > Biomedical Engineering
    Depositing user: Pure Administrator
    Date deposited:05 May 2020 13:33
    Last modified:01 Jan 2021 06:18
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/72259
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