Fabrication of a CNT filter for a microdialysis chip
- Authors
- An, Yun-Ho; Song, Simon
- Issue Date
- Dec-2006
- Publisher
- KOREAN SOCIETY TOXICOGENOMICS & TOXICOPROTEOMICS-KSTT
- Keywords
- CNT filter; microdialysis chip; microfluidics
- Citation
- MOLECULAR & CELLULAR TOXICOLOGY, v.2, no.4, pp.279 - 284
- Indexed
- SCIE
- Journal Title
- MOLECULAR & CELLULAR TOXICOLOGY
- Volume
- 2
- Number
- 4
- Start Page
- 279
- End Page
- 284
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/180730
- ISSN
- 1738-642X
- Abstract
- This paper describes the fabrication methods of a carbon nanotube (CNT) filter and a microdialysis chip. A CNT filter can help perform dialysis on a microfluidic chip. In this study, a membrane type of a CNT filter is fabricated and located in a microfluidic chip. The filter plays a role of a dialysis membrane in a microfluidic chip. In-the fabrication process of a CNT filter, individual CNTs are entangl-ed each other by amide bonding that is catalyzed by 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The chemically treated CNTs are shaped to form a CNT filter using a PDMS film-mold and vacuum filtering. Then, the CNT filter is sandwiched between PDMS substrates, and they are bonded together using a thin layer of PDMS prepolymer as adhesive. The PDMS substrates are fabricated to have a microchannel by standard photo-lithography technique.
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