Uniform lateral orientation, caused by flow forces, of flat particles in flow-through systems.
Recently, it was shown that the lateral orientation of sperm cells disturbs the deoxyribonucleic acid distribution measured by fluorescence in a laterally laser-illuminated flow system. The present results show how flat particles may be influenced to assume a uniform lateral orientation. This was achieved by choosing the geometrical dimensions of the hydrodynamic focusing flow path. High speed photographs of fixed chicken erythrocytes oriented in experimental chambers are presented.
D000818:Animals; D002645:Chickens; D003584:Cytological Techniques; D004912:Erythrocytes / Q000166:cytology*; D013050:Spectrometry, Fluorescence