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Direct protein microarray fabrication using a hydrogel stamper
DOI:10.1021/la9713311.png)
摘要
En 中文
Micropatterned arrays of active proteins are vital to the next generation of high-throughput multiplexed biosensors and advanced medical diagnostics. We have developed a simple method for fabricating antibody arrays using a micromolded hydrogel stamper and an aminosilylated receiving surface. The stamping procedure permits direct protein deposition and micropatterning while avoiding cross-contamination of separate patterned regions. Three different antibodies were stamped in adjacent arrays of 50-80 mu m circular areas with retention of activity. I-125 labeling and atomic force microscopy studies showed that the stamper deposited protein as a submonolayer. The fluorescent signal-to-background ratio of labeled bound antigen was greater than 25:1.
Keyword:
ANTIBODIES
SURFACES
IMMOBILIZATION
GOLD
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期刊
IF:
3.9
论文数:
5.4W
被引数:
10.6W
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