TY - JOUR
T1 - Dielectrophoretic properties of submicron diamond particles in sodium chloride aqueous solution
AU - Inaba, Masafumi
AU - Hayashi, Shohei
AU - Li, Henan
AU - Kamimura, Mikoto
AU - Nakano, Michihiko
AU - Suehiro, Junya
PY - 2020/4/1
Y1 - 2020/4/1
N2 - Dielectrophoretic (DEP) manipulation of a diamond particle has potential application in the detection of DNA or other bio-molecules. We investigate the fundamental DEP and surface properties of submicron diamond particles. Diamond particles were dispersed in a NaCl solution and dropped on a castle-walled electrode. An AC electric field was applied to determine the DEP crossover frequency as a function of the solution conductivity. The surface conductance of the diamond particles was then evaluated from the parametrical fitting of the crossover frequencies. The diamond surface layer was shown to exhibit a rather high conductance, although bulk diamond is insulative.
AB - Dielectrophoretic (DEP) manipulation of a diamond particle has potential application in the detection of DNA or other bio-molecules. We investigate the fundamental DEP and surface properties of submicron diamond particles. Diamond particles were dispersed in a NaCl solution and dropped on a castle-walled electrode. An AC electric field was applied to determine the DEP crossover frequency as a function of the solution conductivity. The surface conductance of the diamond particles was then evaluated from the parametrical fitting of the crossover frequencies. The diamond surface layer was shown to exhibit a rather high conductance, although bulk diamond is insulative.
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U2 - 10.35848/1347-4065/ab7baf
DO - 10.35848/1347-4065/ab7baf
M3 - Article
AN - SCOPUS:85083492753
VL - 59
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 4
M1 - 046502
ER -