Model for Label-Free Detection of Viruses inside Ferrofluid

The authors introduced a novel method for detecting nonmagnetic objects inside ferrofluid as a new method for label-free sensing of whole viruses. The proposed idea is advantageous because it not only avoids the use of labels, but it also permits direct volume measurement of the material attached to...

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Bibliographic Details
Main Authors: Erb, R.M., Yellen, B.B.
Format: Conference Proceeding
Language:English
Subjects:
Glass
Magnetic fields
Magnetic flux
Magnetic liquids
Magnetic materials
Magnetic particles
Magnetic sensors
Magnetic susceptibility
Mathematical model
Viruses (medical)
Online Access:Request full text
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Description
Summary:The authors introduced a novel method for detecting nonmagnetic objects inside ferrofluid as a new method for label-free sensing of whole viruses. The proposed idea is advantageous because it not only avoids the use of labels, but it also permits direct volume measurement of the material attached to the sensor. This analysis found that field produced by a virus inside ferrofluid can be slightly stronger in magnitude than the corresponding field of a magnetic particle in water. If the sensor were sensitive to magnetic flux density, B, as opposed to magnetic field strength, H, then further increases in the sensor signal can be expected using the ferrofluid immersion approach.
ISSN:2150-4598
2150-4601
DOI:10.1109/INTMAG.2006.375605