http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
고민감도 센서 응용을 위한 금속 빗살무늬 나노전극쌍 개발
신흥주(Heungjoo Shin),심대식(Dae-Shick Shim),허정일(Jeong-Il Heo),김진로(Jin-Ro Kim),박형열(Hyung-Ryul Park),류윤하(Yun-Ha Ryu),Marc Madou 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
This paper presents a simple nanofabrication technique for interdigitated array (IDA) nanoelectrodes enabling highly sensitive detection of dopamine by collecting electrochemical current amplified through redox cycling between the fingers of the IDA nanoelectrodes of high aspect ratio. The aspect ratio affecting the signal amplification dominantly can be controlled in deliberate manner through carbon-MEMS and electroplating processes. The carbon-MEMS process which consists of a conventional photolithography followed by pyrolysis converts micrometer size photoresist patterns into nanometer size glassy carbon structures but maximizing electrode aspect ratio is limited because of the non-isotropic volume shrinkage rate during the pyrolysis process. Directional gold electroplating processes onto pre-patterned the carbon nanoelectrodes without a mould overcame the limitation resulting in higher signal amplification compared to the bare carbon nanoelectrodes. The metal coated high aspect ratio IDA nanoelectrodes demonstrated the feasibility as a highly sensitive sensor of low cost for neurotransmitters, especially dopamine.