Stefan Schrittwieser, Frank Ludwig, Jan Dieckhoff, Andreas Tschoepe, Annegret Guenther, Michael Richter, Andreas Huetten, Hubert Brueckl and Joerg Schotter Direct Protein Detection in the Sample Solution by Monitoring Rotational Dynamics of Nickel Nanorods Small 10
The phase lag of the long axis of nickel nanorods with respect to externally applied rotating magnetic fields significantly increases on the adhesion of protein to their surfaces. This is a result of the enlarged hydrodynamic volume-dependent drag torque. Via measurements of the sample's transmission in linearly polarized light, this change in rotational dynamics is monitored.
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