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The Effects of Negative Carbon Ion Beam Energy on the Properties of DLC Film
Choi Bi Kong,Choi Dae Han,Kim Yu Sung,Jang Ho Sung,Lee Jin Hee,Yoon Ki Sung,Chun Hui Gon,You Young Zoo,Kim Dae Il 한국표면공학회 2006 한국표면공학회지 Vol.39 No.3
The effects of negative carbon ion beam energy on the bonding configuration, hardness and surface roughness of DLC film prepared by a direct metal ion beam deposition system were investigated. As the negative carbon ion beam energy increased from 25 to 150 eV, the sp³ fraction of DLC films was increased from 32 to 67%, while the surface roughness was decreased. The films prepared at 150 eV showed the more flat surface morphology of the film than that of the film prepared under another ion beam energy conditions. Surface roughness of DLC film varied from 0.62 to 0.22 ㎚ with depositing carbon ion beam energy. Surface nanohardness increased from 12 to 57 Gpa when increasing the negative carbon ion beam energy from 25 to 150 eV, and then decreased when increasing the ion beam energy from 150 to 200 eV.
랩 온 어 칩 (Lab-on-a-Chip) 기술을 이용한 비침습형 마이크로유체 채널 글루코오스 센서 제작
권선영(Sun-Young Kwon),구단비(Dan-bi Ku),박유민(Yu-Min Park),김하은(Ha-Eun Kim),문혜정(Hye-Jung Moon),배수희(Su-Hee Bae),최수빈(Su-Bin Choi),민동빈(Dong-Bin Min),공성호(Seong-Ho Kong) 대한전자공학회 2016 대한전자공학회 학술대회 Vol.2016 No.11
To prevent modern diseases such as diabetes, it is essential to measure blood glucose level periodically. However, commercial blood glucose meters, using a needle to measure blood glucose level, cause discomfort and pain to users. Therefore, in this paper, we fabricated a sensor capable of measuring the glucose concentration with non-invasive method using salivary glucose. Proposed sensor was fabricated by using a lab-on technology and a microfluidic channel. Since it can perform decomposition and detection of glucose in one chip, it has adventages such as miniaturization, low cost and real-time monitoring.