There＇s　a　growing　interest　in　the　manipulation　of　magnetic　microparticles　due　to　its　great　potential　in　a　diverse　array　of　biomedical　applications　such　as　microfluidics,　suspension　array　and　flow　cytometry.　An　electromagnetic　chip　with　radiating　matrix　pattern　is　proposed,　which　holds　promise　for　more　flexibility　of　magnetic　microparticles　manipulation　in　biological　lab-on-a-chip.