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1 March 2006 A study of binding biotinylated nano-beads to the surface of (001) GaAs
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We have investigated the deposition of biotinylated nano-beads on the surface of GaAs. The deposition procedure involved either direct coating of (001) GaAs with nano-beads, or binding the nano-beads with avidin immobilized on the surface of (001) GaAs through the interface of biotin and the NH2 terminal group of 11-amino-1-undecanethiol (HS(CH2)11NH2). The efficiency of binding was tested by washing the samples in a solution of a commercial detergent and by subjecting them to a deionized water ultrasonic bath. The results indicate that nano-beads deposited directly on the surface of (001) GaAs withstand the detergent washing test but they are easily removed by ultrasonic washing. In contrast, the nano-beads attached to (001) GaAs through the avidin-biotin-thiol interface survive the ultrasonic washing tests.
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Ximing Ding, Khalid Moumanis, Jan J. Dubowski, and Eric H. Frost "A study of binding biotinylated nano-beads to the surface of (001) GaAs", Proc. SPIE 6106, Photon Processing in Microelectronics and Photonics V, 61061L (1 March 2006);

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