“…The SAMs, which are composed of compounds having a functional group, are interesting especially in the application fields of biomaterials, 2,3 and microelectronics. 4,5 When the functional group recognizes a specific molecule, the modified gold will be used as an electrode for a chemical sensing device. 6 The molecular recognition process can be detected sensibly by IR spectroscopy, 3 quartz crystal microbalance (QCM), 4,5 surface plasmon resonance (SPR), 6 and electrochemical measurements.…”