Abstract
A microelectromagnet matrix and a ring trap that position and control magnetic nanoparticles are demonstrated. They consist of multiple layers of lithographically defined Au wires separated by transparent, insulating polyimide layers on sapphire substrates. Magnetic field patterns produced by these devices allow microscopically precise control and manipulation of magnetic nanoparticles. A microelectromagnet matrix produces single or multiple peaks in the magnetic field magnitude, which trap, move, and rotate magnetic nanoparticles, as well as electromagnetic fields to probe and detect particles. Microelectromagnets are new tools with which to study and manipulate nanoparticles and biological entities.
Keywords
NanoparticleMagnetic nanoparticlesMagnetic fieldMaterials sciencePolyimideTrap (plumbing)NanotechnologySapphireMatrix (chemical analysis)OptoelectronicsPhysicsOpticsComposite materialLayer (electronics)
Affiliated Institutions
Related Publications
Ultralow-loading platinum-cobalt fuel cell catalysts derived from imidazolate frameworks
Combine and conquer Platinum (Pt)–group metals, which are scarce and expensive, are used for the demanding oxygen reduction reaction (ORR) in hydrogen fuel cells. One competing ...
Design of liposomes as drug delivery system for therapeutic applications
Liposomes are spherical vesicles consisting of one or more concentric phospholipid bilayers enclosing an aqueous core. Being both nontoxic and biodegradable, liposomes represent...
Publication Info
- Year
- 2001
- Type
- article
- Volume
- 79
- Issue
- 20
- Pages
- 3308-3310
- Citations
- 277
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
277
OpenAlex
Cite This
C. S. Lee,
H. Lee,
Robert M. Westervelt
(2001).
Microelectromagnets for the control of magnetic nanoparticles.
Applied Physics Letters
, 79
(20)
, 3308-3310.
https://doi.org/10.1063/1.1419049
Identifiers
- DOI
- 10.1063/1.1419049