A novel PDMS microfluidic spotter for fabrication of protein chips and microarrays

被引：46

作者：

Chang-Yen, David A.

Myszka, David G.

Gale, Bruce K.

机构：

[1] Univ Utah, Utah State Ctr Excellence Biomed Microfluid, Salt Lake City, UT 84112 USA

[2] Univ Utah, Prot Interact Facil, HSC Core Labs, Salt Lake City, UT 84112 USA

[3] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA

来源：

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS | 2006年 / 15卷 / 05期

基金：

美国国家科学基金会;

关键词：

microarray; microfluidic; polydimethyl siloxane (PDMS); spotter;

D O I：

10.1109/JMEMS.2006.880289

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel polydimethyl siloxane (PDMS) microfluidic spotter system has been developed for the patterning of surface microarrays that require individually addressing each spot area and high probe density. Microfluidic channels are used to address each spot region, and large spot arrays can be addressed in parallel. Fluorescence intensity measurement of dye-spotted samples compared to control and pipetted drops demonstrated a minimum of three-fold increase in dye surface density compared to pin-spotted dyes. Surface plasmon resonance (SPR) measurement of protein-spotted samples as compared to pin-spotted samples demonstrated an 86-fold increase in protein surface concentration. The spotting system has been applied successfully to protein microarrays for SPR applications, in both a 12-spot linear and 48-spot two-dimensional (2-D) array format. This novel spotter system can be applied to the production of high-throughput arrays in the fields of genomics, proteomics, immunoassays, and fluorescence or luminescence assays.

引用

页码：1145 / 1151

页数：7

共 9 条

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