Title :
Investigation of electrical properties of DNA-attached carbon nano-particles for biological applications
Author :
Ouyang, Mengxing ; Li, Wen J. ; Wong, Ka Wai ; Liu, Wing Keung
Author_Institution :
Centre for Micro & Nano Syst., Chinese Univ. of Hong Kong, Shatin, China
Abstract :
Carbon nano-particles are nano-sized crystalline with predominantly graphitic structure. Our recent work showed that DNA-attached Carbon Nano-Particles (DAC) can be positioned between microelectrodes in a microfluidic system to investigate its electrical properties. Dielectrophoretic based “deposition” led to a robust adhesion of various DACs with the chip substrate even after repeatedly DI water flushing. The IV characteristics and stability of three types of DACs under different conditions (i.e., towards open environment, sealed in dry microchannel, or immerged in DI water) were compared and analyzed. In addition, experiments were conducted to determine the temperature and humidity dependency of the DACs.
Keywords :
DNA; adhesion; bioMEMS; bioelectric phenomena; carbon; electrodeposition; electrophoresis; lab-on-a-chip; microchannel flow; microelectrodes; molecular biophysics; nanoparticles; C; DI water flushing; DNA -attached carbon nanoparticles; adhesion; biological applications; chip substrate; dielectrophoresis based deposition; dry microchannel; electrical properties; graphitic structure; humidity; microelectrodes; microfluidic system; nanosized crystalline materials; Artificial intelligence; Carbon; Gold; Humidity; Nanoelectromechanical systems; Stability analysis; Carbon Nano-Particles; DNA attached Carbon Nano-Particles; Dielectrophoresis Manipulation;
Conference_Titel :
Nano/Micro Engineered and Molecular Systems (NEMS), 2012 7th IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-1122-9
DOI :
10.1109/NEMS.2012.6196810
