"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Water-based ferrofluids for biomedical applications: physical characterisation

G. APREOTESEI1, L. E. UDREA2,* , O. ROTARIU2, R. BĂDESCU1

Affiliation

  1. Technical University “Gh. Asachi”, Department of Physics, Iasi, 700050, Romania
  2. National Institute of Research and Development for Technical Physics, Iasi, 700050, Romania

Abstract

Magnetic nanoparticles offer some attractive possibilities in biomedicine, and the biocompatible ferrofluids led to a range of new biomedical and diagnostic applications. We have prepared 2 sorts of water-based ferrofluids and then we have made a physical characterization of these. Thus, we have determined the size distributions of particles in ferrofluids by a dynamic light scattering (DLS) method and by analyzing the magnetization curves of ferrofluids. Then we have analyzed the magneto-optical properties (linear dichroism and linear birefringence) in the ferrofluids, using a method relied on the measurement of the azimuthal distribution of the transmitted light through a homogenous ferrofluid film magnetized parallel to its plane by an external continuous magnetic field..

Keywords

Birefringence, Azimuthal distribution, Aqueous ferrofluid, In-situ precipitation.

Submitted at: March 23, 2007
Accepted at: Nov. 16, 2007

Citation

G. APREOTESEI, L. E. UDREA, O. ROTARIU, R. BĂDESCU, Water-based ferrofluids for biomedical applications: physical characterisation, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3427-3430 (2007)