Abstract
Alkanethiols and ferrocene derivates were used to construct redox self-assembled double-or triplex-layer thin films, which acted as a model of redox self-assembled multilayer thin films (SAMTFs) to study the in-fluence of alkanethiols chain length on the electrochemical behavior of the SAMTFs. The rate of electron transferreaction decreased exponentially with the distance between the Fc groups and the underlying electrodes. The in-fluence of chain length on the electrochemical behaviors of the SAMTFs was inconsistent under different situa-tions. On the experimental situation of this work, when electroactive groups were closer to the electrodes,SAMTFs by longer chains of alkanethiols displayed stronger electrochemical responses, while when distance be-tween electroactive groups and electrodes was extended, SAMTFs by shorter chain would present more obviouselectrochemical responses.
Keywords
Self-assmbled multiplayer thin films, Cyclic voltammetry, Chain length, Alkanethiols, Elec-tron transfer, Ferrocene
Publication Date
2005-08-28
Online Available Date
2005-08-28
Revised Date
2005-08-28
Received Date
2005-08-28
Recommended Citation
Yun-feng WANG, Zhan-jun ZHANG.
A Preliminary Study of Influence of the Chain Length of Alkanethiols on the Electrochemical Behavior of Redox Self-Assembled Multilayer Thin Films[J]. Journal of Electrochemistry,
2005
,
11(3): 248-253.
DOI: 10.61558/2993-074X.1649
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol11/iss3/3
References
[1]Zhong C,Woods NT,Dawson G B,et al.Formation ofthiol-based monolayers on gold:implications from opencircuit potential measurements[J].Eletrochem.Com-mun.,1999,1:17.
[2]Creager S E,Rowe G K.Solvent and double-layereffects on redox reactions in self-assembled monolayersof ferrocenyl-alkanethiolates on gold[J].J.Electro-anal.Chem.,1997,420:291.
[3]Ge B,Lisdat F.Superoxide sensor based on cytochromec immobilized on mixed-thiol SAM with a new calibra-tion method[J].Anal.Chim.Acta,2002,454:53.
[4]Wegner G J,Lee HJ,Marriott G,et al.Fabrication ofhistidine-tagged fusion protein arrays for surface plasmonresonance imaging studies of protein-protein and protein-DNA interactions[J].Anal.Chem.,2003,75:4 740.
[5]Yang M L,Zhang Z J.Impediment to heterogeneous e-lectron transter reactions of redox-active species by al-kanedithiol self-assembled monolayers with and withoutan adlayer of Au nanoparticles[J].Electrochimica Ac-ta,2004,49:5 089.
[6]Wang Y F,Yao X,Wang J X,et al.Attachment of a-mine-and maleimide-containing ferrocene derivativesonto self-assembled alkanethiol and alkanedithiol mono-layers:voltammetric evaluation of cross-linking efficien-cies and surface coverage of electroactive groups[J].Electroanal.,2004,16:1 755.
[7]Li J H.Electrochemistry on Self-Assembled Monolayers[M].Beijing:Higher Education Press,2002.
[8]Gleria K D,Hill H A O,Wong L L.N-(2-Ferrocene-ethyl)maleimide:a new electroactive sulphydryl-specif-ic reagent for cysteine-containing peptides and proteins[J].FEBS Lett.,1996,390:142.
[9]Wagner P,Hegner M,Kernen P,et al.Covalent immo-bilization of native biomolecules onto Au(3)via N-hydroxysuccinimide ester functionalized self-assembledmonolayers for scanning probe microscopy[J].Bio-phys.J.,1996,70:2 052.
[10]Esplandiu M J,Hagenstrom H,Kolb D M.Function-alized self-assembled alkanethiol monolayers on Au(3)electrodes:1.Surface structure and electrochemistry[J].Langmuir,2001,17:828.
[11]Bard A J,Faulkner L R.Electrochemical Methods:Fundamentals and Applications[M].New York:JohnWiley&Sons,2001.
[12]Wang L,Ni J,Singh S.Carbohydrate-centered male-imide cluster as a new type of templates for multi-valentpeptide assembling:synthesis of multivalentHIV-1 gp41 peptides[J].Bioorg.Med.Chem.,2003,11:159.
