High-performance surface acoustic wave immunosensing system on a PEG/aptamer hybridized surface

Label-free immunoassay systems have the advantages of procedural simplicity and a low construction cost of surfaces for immunosensing. When label-free immunoassay systems are considered, the nonspecific adsorption of unwanted materials should be eliminated unless it aids in the detection of error. P...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 29(2013), 24 vom: 18. Juni, Seite 7369-76
1. Verfasser: Horiguchi, Yukichi (VerfasserIn)
Weitere Verfasser: Miyachi, Seigo, Nagasaki, Yukio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't DNA Primers Polyethylene Glycols 3WJQ0SDW1A
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245 1 0 |a High-performance surface acoustic wave immunosensing system on a PEG/aptamer hybridized surface 
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520 |a Label-free immunoassay systems have the advantages of procedural simplicity and a low construction cost of surfaces for immunosensing. When label-free immunoassay systems are considered, the nonspecific adsorption of unwanted materials should be eliminated unless it aids in the detection of error. PEG is well-known as a blocking agent for the prevention of the adsorption of nonspecific binding materials when coimmobilized with ligands for targets such as antibodies and oligonucleotides. The construction strategy for PEG/ligand coimmobilized surfaces is an important point in the preparation of a high-performance assays because the physiological condition of the ligand depends strongly on its interaction with the PEG chain. In this report, we investigate the interaction between thrombin and a thrombin-binding aptamer (TBA) on a PEG/TBA coimmobilized surface by using a shear horizontal surface acoustic wave (SAW) sensor. The thrombin-TBA binding property shows remarkable differences with changes in the PEG density and the distance from the gold surface to the aptamer 
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650 4 |a Research Support, Non-U.S. Gov't 
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700 1 |a Miyachi, Seigo  |e verfasserin  |4 aut 
700 1 |a Nagasaki, Yukio  |e verfasserin  |4 aut 
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