Work

Magnetophoretic long jump of magnetic microparticles in an engineered magnetic stray field landscape for highly localized and large throughput on-chip fractionation

Year: 2025

Type: article

Abstract: , different lateral positions on the substrate. Thorough analysis of the motion using optical microscopy and particle tracking revealed that an increasing stripe width not only leads to a larger jump distance but also to a lowered jump velocity. As a consequence, particles are spatially separated according to their magnetic and structural properties with a large throughput and time efficiency, as simultaneous sorting occurs for all particles present on the substrate using a constant sequence of short external field pulses.

Source: Lab on a Chip

DOI: 10.1039/d5lc01000d

Authors: Rico Huhnstock, Lukas Paetzold, Piotr Kuświk, Arno Ehresmann

Institutions: University of Kassel, Helmholtz-Zentrum Berlin für Materialien und Energie, Institute of Molecular Physics of the Polish Academy of Sciences, Polish Academy of Sciences

Language: English

Topic: Microfluidic and Bio-sensing Technologies

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: Deutsche Forschungsgemeinschaft, Narodowym Centrum Nauki

Awards: Vibrationsmagnetometer, G2004512507, KerrMikroskop, Multifunktionale PVD Anlage, OberflächenPartikelWechselwirkungen durch Flüssigkeiten bei der oberflächennahen Bewegung superparamagnetischer Partikel und magnetischer JanusMikropartikel in ruhenden Flüssigkeiten