With the development of nanotecbnology, the separation and manipulation of micro-nano-panicles have become a research focus in the field of nano-materials, nielectrophoresis（DEP） is a non-contact technology for the ...With the development of nanotecbnology, the separation and manipulation of micro-nano-panicles have become a research focus in the field of nano-materials, nielectrophoresis（DEP） is a non-contact technology for the separation and manipulation of micro-nano-particles. Here is reported the design and fabrication of a DEP based microchip with microelectrode arrays for capturing micro-particles of inorganic oxides in petroleum. The DEP behavior of micro-particles of inorganic oxides in oil media was explored via this microchip. The microchip shows relatively a good DEP response to inorganic oxides in oil media. Furthermore, much more factors were explored such as fiequency（Hz）, and particle size（μm）, as well as metal valence. As a conclusion, the best frequency is 50 Hz. It is expected to capture panicles with different sizes or separate different oxide panicles by regulating DEP conditions. Thus, a new method could be established for the separation and purification panicles of different oxides, as well as the separation and manipulation of an oxide with different particle sizes.展开更多
基金Supported by the National Natural Science Foundation of China(No.90305011)the"985"Foundation of Central University for Nationalities(No.cun985-3-3)
文摘With the development of nanotecbnology, the separation and manipulation of micro-nano-panicles have become a research focus in the field of nano-materials, nielectrophoresis（DEP） is a non-contact technology for the separation and manipulation of micro-nano-particles. Here is reported the design and fabrication of a DEP based microchip with microelectrode arrays for capturing micro-particles of inorganic oxides in petroleum. The DEP behavior of micro-particles of inorganic oxides in oil media was explored via this microchip. The microchip shows relatively a good DEP response to inorganic oxides in oil media. Furthermore, much more factors were explored such as fiequency（Hz）, and particle size（μm）, as well as metal valence. As a conclusion, the best frequency is 50 Hz. It is expected to capture panicles with different sizes or separate different oxide panicles by regulating DEP conditions. Thus, a new method could be established for the separation and purification panicles of different oxides, as well as the separation and manipulation of an oxide with different particle sizes.
