Simultaneous determination of ochratoxin A and enterotoxin A in milk by magnetic nanoparticles based fluorescent immunoassay.

Ochratoxin A (OTA) and staphylococcus enterotoxin A (SEA) are highly toxic contaminants and have induced human health problems. They commonly occur in milk and milk products. A competitive fluorescent immunoassay was developed for rapid and simultaneous determination of these toxins in milk samples.

CD34 stem cell counting using labeled immobilized anti-CD34 antibody onto magnetic nanoparticles and EasyCounter BC image cytometer.

The ability of immobilized conjugate anti-CD34 monoclonal antibody-dR110 and free conjugate anti-CD45 monoclonal antibody-ATTO620 to precisely enumerate CD34 stem cells and CD45 cells in apheresis samples were evaluated. The conjugates anti-CD34 antibody-dR110 and anti-CD45- antibody-ATTO620 were prepared. Functionalized magnetic nanoparticles (MNPs) were synthesized.