http://www.cd-bioparticles.com/p/Human-CD4-Magnetic-Particles_20_194_225_631.htmlCD4+ expressing cells are either selected or depleted by incubating your sample with Absolute Mag™ Anti-Human CD4 Magnetic Particles (# WHM-B001). The magnetically labeled fraction is retained by the use of a magnetic separator. After collection of the CD4+ expressing cells, downstream applications include functional assays, gene expression, phenotypic characterization, etc.Cell Isolation