Techniques For Electro- And Magnetokinetic Particle Characterization
SCIENTIFIC AND CLINICAL APPLICATIONS OF MAGNETIC CARRIERS(1997)
摘要
The applicability of magnetic particles is strongly dependent on the electric surface charge and the magnetic susceptibility of the individual particles. Particle electrophoresis is a common method to control the production process and to assess the final colloidal solution. Particles within a wide size range are used and different measuring principles must therefore be applied. Laser based techniques using the Doppler or image transduction effect are very useful for the estimation of the mean electrophoretic mobility of particles within the size range below 500 nm. Automated techniques with image analysis are preferred for the analysis of mixtures of particles with sizes larger than 500 nm and with a broad variation of the surface charge. Electrophoretic fingerprints representing the mean electrophoretic mobility of a given particle suspension versus pH and ionic strength of the media are a helpful method for the assessment of the production and modification procedure of particles.The magnetophoretic measurement of individual particles in an inhomogeneous field can be automated by means of image analysis systems, but the software responsible for the tracking of the pictures must take into account the inhomogeneous velocity field in the measuring chamber.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络