期刊
LAB ON A CHIP
卷 10, 期 11, 页码 1442-1446出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b925244d
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资金
- MEST [R31-2008-000-10026-0]
- Ministry of Maritime Affairs and Fisheries [20090006]
- Institute of Medical System Engineering (iMSE, GIST), Republic of Korea
This paper presents a handheld mechanical cell lysis chip with ultra-sharp nano-blade arrays fabricated by simple and cost effective crystalline wet etching of (110) silicon. The ultra-sharp nano-blade array is simply formed by the undercutting of (110) silicon during the crystalline wet etching process. Cells can be easily disrupted by the silicon nano-blade array without the help of additional reagents or electrical sources. Based on the bench-top test of the proposed device, a handheld mechanical cell lysis chip with the nano-blade arrays is designed and fabricated for direct connection to a commercial syringe. The direct connection to a syringe provides rapid cell lysis, easy handling, and minimization of the lysate dead volume. The protein concentration in the cell lysate obtained by the proposed lysis chip is quantitatively comparable to the one prepared by a conventional chemical lysis method.
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