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Copyright (c) 2014 Junhua Liu, Qingyun Zhang, Pei Zheng, Xiaodong Dong*
This work is licensed under a Creative Commons Attribution 4.0 International License.
Molecular Sensing Based on Metal Quantum Wire in Solution
Corresponding Author(s) : Junhua Liu
Asian Journal of Chemistry,
Vol. 26 No. 23 (2014)
Abstract
Stable gold and silver quantum wires with atomic-scale were successfully fabricated with an electrochemical method in solution and the molecular adsorption onto the quantum wires were studied. The conductance of gold quantum wires showed a decrease upon exposure to definite concentration of dopamine solution and the conductance of silver quantum wires showed an increase upon exposure to ascorbic acid solution. Different sensor mechanisms were proposed with the two kinds mental quantum wire. Because the quantized conductance is determined by a few atoms at the narrowest portion of each quantum wire, adsorption of a molecule onto the portion is enough to change the conductance, which may be used for chemical sensors.
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- Y. Guo, Y. Ma, G. Gao, J. Li and J. Xu, Asian J. Chem., 26, 113 (2014).
- S.N.M. Nordin, A.H. Abdullah and Z. Zainal, Asian J. Chem., 25, 10230 (2013).
- X.D. Dong and J.H. Liu, Asian J. Chem., 25, 4773 (2013).
- Y.R. Leroux, C. Fave, D. Zigah, G. Trippe-Allard and J.C. Lacroix, J. Am. Chem. Soc., 130, 13465 (2008).
- F.Q. Xie, R. Maul, S. Brendelberger, C. Obermair, E.B. Starikov, W. Wenzel, G. Schön and T. Schimmel, Appl. Phys. Lett., 93, 043103 (2008).
- X.D. Dong, Y. Xia, G.Y. Zhu and B.L. Zhang, Nanotechnology, 18, 395502 (2007).
- I.A. Ibarra, T.W. Hesterberg, J.-S. Chang, J.W. Yoon, B.J. Holliday and S.M. Humphrey, Chem. Commun., 49, 7156 (2013).
- X.D. Dong and J.H. Liu, Asian J. Chem., 25, 2641 (2013).
- X.D. Dong, B.L. Zhang, Y. Xia and G.Y. Zhu, Chem. J. Chinese Univ., 29, 1424 (2008).
- C.Z. Li, H.X. He, A. Bogozi, J.S. Bunch and N.J. Tao, Appl. Phys. Lett., 76, 1333 (2000).
- P.J. Castle and P.W. Bohn, Anal. Chem., 77, 243 (2005).
- X.D. Dong, J.H. Liu, B.L. Zhang and Y. Xia, Electrochim. Acta, 74, 78 (2012).
- J.K. Oh, F. Perineau and K. Matyjaszewski, Macromolecules, 39, 8003 (2006).
References
Y. Guo, Y. Ma, G. Gao, J. Li and J. Xu, Asian J. Chem., 26, 113 (2014).
S.N.M. Nordin, A.H. Abdullah and Z. Zainal, Asian J. Chem., 25, 10230 (2013).
X.D. Dong and J.H. Liu, Asian J. Chem., 25, 4773 (2013).
Y.R. Leroux, C. Fave, D. Zigah, G. Trippe-Allard and J.C. Lacroix, J. Am. Chem. Soc., 130, 13465 (2008).
F.Q. Xie, R. Maul, S. Brendelberger, C. Obermair, E.B. Starikov, W. Wenzel, G. Schön and T. Schimmel, Appl. Phys. Lett., 93, 043103 (2008).
X.D. Dong, Y. Xia, G.Y. Zhu and B.L. Zhang, Nanotechnology, 18, 395502 (2007).
I.A. Ibarra, T.W. Hesterberg, J.-S. Chang, J.W. Yoon, B.J. Holliday and S.M. Humphrey, Chem. Commun., 49, 7156 (2013).
X.D. Dong and J.H. Liu, Asian J. Chem., 25, 2641 (2013).
X.D. Dong, B.L. Zhang, Y. Xia and G.Y. Zhu, Chem. J. Chinese Univ., 29, 1424 (2008).
C.Z. Li, H.X. He, A. Bogozi, J.S. Bunch and N.J. Tao, Appl. Phys. Lett., 76, 1333 (2000).
P.J. Castle and P.W. Bohn, Anal. Chem., 77, 243 (2005).
X.D. Dong, J.H. Liu, B.L. Zhang and Y. Xia, Electrochim. Acta, 74, 78 (2012).
J.K. Oh, F. Perineau and K. Matyjaszewski, Macromolecules, 39, 8003 (2006).