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A Molecular Keypad Lock That Uses Cu(II) Cations and H2PO4 - Anions as Inputs

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Abstract:

Molecular keypad lock devices have considerable advantages over simple molecular logic gates because the output signals not only depend on the proper combination of inputs but also on the sequence of the input signals. Especially, keeping in view the role played by transition metal ions, anions and electronic devices in day to day life, the development of applications in electronic devices upon chemical inputs of these cations or anions in a sequential manner is very important. Previously, we designed a 2, 2′-dihydroxyazobenzene (DHAB)-based model of a keypad lock system depending on the inputs sequence of Zn(II) cations and H2PO4 - anions. In the present work, we studied the properties of 2-((E)-(2-((E)-3-bromoallyloxy)phenyl)diazenyl)phenol, compound 1, toward anions in the absence and presence of Cu(II) cations, in order to further explore the potential applications of DHAB-based sensing systems. We demonstrated that the application of compound 1 with the inputs of Cu(II) cations and H2PO4 - anions could be realized as a molecular keypad lock which could be of future interest in molecular computing.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.6354

Publication date: July 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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