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Sensors  2007 

Surface Plasmon Spectroscopic Detection of Saxitoxin

DOI: 10.3390/s7071216

Keywords: Saxitoxin, surface plasmon resonance, calixarene, self-assembled monolayer (SAM).

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Abstract:

For the surface-optoelectronic study of Saxitoxin sensing, we fabricated self-assembled calix[4]arene derivative monolayers as the recognition-functional interfaces ona gold surface. An interaction study between Saxitoxin and calix[4]arene derivativemonolayers were performed using surface plasmon resonance (SPR) spectroscopy. Amongthree calix[4]arene derivatives, calix[4]arene crown ether SAM showed the highestsensitivity to Saxitoxin. The detection limit of this system is three orders of magnitudelower than that of the mouse bioassay which is the current benchmark for Saxitoxindetection.

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