Stretching of DNA molecules on the APS modified surface of mica

摘要

The DNA molecules are deposited and stretched on the APS modified surface of the mica using several methods which are blowing method, centrifugal meth-od, free-fluid method, dragging method and spreading method. The stretched DNA molecules on the surface of the APS-mica are characterized by Atomic Force Mi-croscopy (AFM). According to the AFM results, these methods are discussed and compared when employed in stretching DNA molecules.