Abstract
A magnetic capture of chromatin particles, ferritin, bacterial cells and shrimps was effectively used to measure the magnetic susceptibility, Fourier-spectra, and real-time graphs. In the high gradient magnetic separation(HGMS) using the low-frequency photo-detection the new dynamical bio-particle parameters were obtained. The concentration phase transitions and the diamagnetic alignment were revealed for colloid suspensions of the chromatin particles and the nuclei of chicken red blood cells in the HGMS. A biosensor detecting dynamical changes in the refractive index using a spectroscopy of intensity fluctuations was combined with the HGMS to detect a diamagnetic and paramagnetic capture, liquid-crystalline phase transitions in DNA containing particles, a dynamical autofluorescence and frequency spectra. Chicken red blood cell nuclei formed liquid-crystalline very bright (cholesteric) tubular-hexagonal structures and networks under their diamagnetic alignment in high gradient magnetic fields.