Flow cytometry

technique of suspending cells in a stream of fluid and passing them by an electronic detection apparatus

Immunophenotyping is a technique used to study the protein expressed by cells. This technique is commonly used in basic science research and laboratory diagnostic purpose. This can be done on tissue section (fresh or fixed tissue), cell suspension, etc. An example is the detection of tumor markers, such as in the diagnosis of leukemia. It involves the labelling of white blood cells with antibodies directed against surface proteins on their membrane. By choosing appropriate antibodies, the differentiation of leukemic cells can be accurately determined. The labelled cells are processed in a flow

chemical compound

chemical compound

thumb|Cytometers are the instruments which count the blood cells in the common blood test.

means of choosing what type of sperm cell (X-chromosome or Y-chromosome) is to fertilize the egg cell

thumb|350px|Micrograph of a GFAP immunostained section of a [[brain tumour.]]