Analytical and Bioanalytical Chemistry

, Volume 403, Issue 8, pp 2077–2088

Applications of microelectromagnetic traps

Review

DOI: 10.1007/s00216-012-6040-5

Cite this article as:
Basore, J.R. & Baker, L.A. Anal Bioanal Chem (2012) 403: 2077. doi:10.1007/s00216-012-6040-5

Abstract

Microelectromagnetic traps (METs) have been used for almost two decades to manipulate magnetic fields. Different trap geometries have been shown to produce distinct magnetic fields and field gradients. Initially, microelectromagnetic traps were used mainly to separate and concentrate magnetic material at small scales. Recently such traps have been implemented for unique applications, for example filterless bioseparations, inductive heat generation, and biological detection. In this review, we describe recent reports in which MET geometry, current density, or external fields have been used. Descriptions of recent applications in which METs have been used to develop sensors, manipulate DNA, or block ion current are also provided.

https://static-content.springer.com/image/art%3A10.1007%2Fs00216-012-6040-5/MediaObjects/216_2012_6040_Figb_HTML.gif
Figure

Illustration of a magnetic particle trapped by the magnetic field of a microelectromagnet

Keywords

Microelectromagnetic trapsMagnetic particlesMagnetic manipulationMicrofluidics

Abbreviations

DLVO

Derjaguin–Landau–Verwey–Overbeek

IgG

Immunoglobulin

MET(s)

Microelectromagnetic trap(s)

MP(s)

Magnetic particle(s)

PDMS

Polydimethylsiloxane

SERRS

Surface-enhanced resonance Raman scattering

SPAD

Single photon avalanche diode

SPM

Superparamagnetic

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  1. 1.Department of ChemistryIndiana UniversityBloomingtonUSA