Deposition of Ni(II)Porphyrin Monolayer on the Gold Electrode via Azide-Alkyne Click - Coupling and its Electrochemical Characterization

作者：Grabowska Iwona^*; Zborowska Magdalena; Nguyen Tran Nguyen; Dehaen Wim; Stulz Eugen; Wood James W; Radecka Hanna; Radecki Jerzy

来源：International Journal of Electrochemical Science, 2014, 9(11): 5948-5960.

• (N-3)(2)-Ni(II)porphyrin
• azide-alkyne click chemistry
• self-assembled monolayers
• redox active SAMs
• gold electrode

In this work, a Ni(II) porphyrin containing two azide groups ((N-3)(2)-Ni(II) porphyrin) was applied for gold electrode modification via azide-alkyne click reaction. The [CuBr(PPh3)(3)] catalyst was used for the cycloaddition of diazido Ni(II) porphyrin to alkyne functionalized thiols previously assembled onto the gold surface. The self-assembled monolayer (SAM) incorporating Ni(II) porphyrin was characterized in aqueous solutions by cyclic voltammetry (CV), Osteryoung square-wave voltammetry (OSWV) and differential pulse voltammetry (DPV). The attachment of a ssDNA probe via a strained bicyclononyne group to the developed redox active monolayer via copper-free alkyne-azide click ligation is presented.

• 出版日期2014-11