AVS 51st International Symposium
    Biomaterial Interfaces Monday Sessions
       Session BI-MoP

Paper BI-MoP19
Local Property of Linear Plasmid DNA on the Metal Wires with Different Potential

Monday, November 15, 2004, 5:00 pm, Room Exhibit Hall B

Session: Poster Session
Presenter: S.H. Jin, Myongji University, Korea
Authors: S.H. Jin, Myongji University, Korea
J.M. Son, Myongji University, Korea
N.J. Lee, Myongji University, Korea
C.J. Kang, Myongji University, Korea
Correspondent: Click to Email
Linear plasmid DNA crossed on the patterned nano metal wire is characterized by scanning capacitance microscopy and electrostatic force microscopy. The metal wires processed on the silicon wafer followed by a capping thin dielectric film were used as a local potential source for the DNA molecule. By varying the voltage bias applied to the metal wire, initial stage of DNA deposition on the substrate is observed and local electrical properties, such as capacitance variation and change of surface potential are measured. With images and spectroscopy, we investigate DNA moleculeâ?"substrate interaction.