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Chung, B. G., Manbachi, A., Saadi, W., Lin, F., Jeon, N. L., Khademhosseini, A. A Gradient-generating Microfluidic Device for Cell Biology. J. Vis. Exp. (7), e271, doi:10.3791/271 (2007).
ढाल पैदा microfluidic डिवाइस के ए Microfabrication
बी प्रायोगिक सेटअप
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कक्ष एक microfluidic डिवाइस में उच्च सांद्रता ओर माइग्रेट EGF के स्थिर एकाग्रता gradients के लिए अवगत कराया. सेल प्रवास, chemotactic सूचकांक, पलायन कोशिकाओं की गतिशीलता के दिशात्मक उन्मुखीकरण सेल ट्रैकिंग विश्लेषण द्वारा जांच की गई. इसलिए, इस ढाल पैदा microfluidic मंच कैंसर मेटास्टेसिस embryogenesis और अक्षतंतु मार्गदर्शन के अध्ययन के लिए उपयोगी हो सकता है.
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| Name | Type | Company | Catalog Number | Comments |
| Dextran-FITC | Reagent | Sigma-Aldrich | FD10S | Fluorescein isothiocyanate (FITC) conjugated-dextran (10kD) |
| hr-EGF | Invitrogen | 13247-051 | human recombinant Epidermal growth factor | |
| PDMS | K.R. Anderson Co. | 2065622 | Poly(dimethylsiloxane) (PDMS), Dow Corning Sylgard 184 (8.6 lb) | |
| Negative photoresist | MicroChem Corp. | SU-8 50 | ||
| Si wafer | silicone wafer, 4 inch | |||
| Petri dishes | ||||
| Polyethylene tubing | BD Biosciences | PE 20 | ||
| PBS | Invitrogen | |||
| Fibronectin | ||||
| NIH 3T3 | cell-line | fibroblast cells | ||
| Inverted microscope | Nikon Instruments | TE 2000 |
1. Jeon N.L., Baskaran H., Dertinger S.K.W., Whitesides G.M., Van de Water L., Toner M. Neutrophil chemotaxis in linear and complex gradients of interleukin-8 formed in a microfabricated device. Nat. Biotechnol. 20(8), 826-830 (2002)
2. Lin F., Nguyen C.M., Wang S.J., Saadi W., Gross S.P., Jeon N.L. Effective neutrophil chemotaxis is strongly influenced by mean IL-8 concentration. Biochem. Biophys. Res. Commun. 319(2), 576-581. (2004)
3. Chung B.G., Flanagan L.A., Rhee S.W., Schwartz P.H., Lee A.P., Monuki E.S., Jeon N.L. Human neural stem cell growth and differentiation in a gradient-generating microfluidic device. Lab Chip 5(4), 401-406 (2005)
4. Saadi W., Wang S.J, Lin F., Jeon N.L. A parallel-gradient microfluidic chamber for quantitative analysis of breast cancer cell chemotaxis. Biomed. Microdevices 8(2), 109-118 (2007)
5. Chung B.G., Park J.W., Hu J.S., Huang C., Monuki E.S., Jeon N.L. A hybrid microfluidic-vacuum device for interfacing with conventional cell culture platform. BMC Biotechnol., 7(1), 60 (2007)
I wanna try it on my cells. Can you give me some ready-to-use devices?
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ReplyPosted by: Grace C.April 21, 2009, 9:24 PM