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Molecular Logic Gates Using Surface-Enhanced Raman-Scattered Light
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, Vincent J. Bottomley†, Jan O. Jeppesen‡, Eric W. Wong§, Lasse Jensen, and Amar H. Flood*† Etamota Corporation, 2665-D Park Center Drive, Simi Valley, California 93065, United States
Abstract
A voltage-activated molecular-plasmonics device was created to demonstrate molecular logic based on resonant surface-enhanced Raman scattering (SERS). SERS output was achieved by a combination of chromophore–plasmon coupling and surface adsorption at the interface between a solution and a gold nanodisc array. The chromophore was created by the self-assembly of a supramolecular complex with a redox-active guest molecule. The guest was reversibly oxidized at the gold surface to the +1 and +2 oxidation states, revealing spectra that were reproduced by calculations. State-specific SERS features enabled the demonstration of a multigate logic device with electronic input and optical output.
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This article has been cited by 3 ACS Journal articles (3 most recent appear below).
Electrochemically Controlled Assembly and Logic Gates Operations of Gold Nanoparticle Arrays
Marco Frasconi and Franco MazzeiLangmuir2012 28 (6), 3322-3331Electrochemically Controlled Assembly and Logic Gates Operations of Gold Nanoparticle Arrays
Marco Frasconi and Franco MazzeiLangmuir2012 28 (6), 3322-3331The reversible assembly of β-cyclodextrin-functionalized gold NPs (β-CD Au NPs) is studied on mixed self-assembled monolayer (SAM), formed by coadsorption of redox-active ferrocenylalkylthiols and n-alkanethiols on gold surfaces. The surface coverage and ...
Gold Nanoparticles Aggregation: Drastic Effect of Cooperative Functionalities in a Single Molecular Conjugate
Volodymyr Chegel, Oleksandre Rachkov, Andrii Lopatynskyi, Shinsuke Ishihara, Igor Yanchuk, Yoshihiro Nemoto, Jonathan P. Hill, and Katsuhiko ArigaThe Journal of Physical Chemistry C2012 116 (4), 2683-2690Gold Nanoparticles Aggregation: Drastic Effect of Cooperative Functionalities in a Single Molecular Conjugate
Volodymyr Chegel, Oleksandre Rachkov, Andrii Lopatynskyi, Shinsuke Ishihara, Igor Yanchuk, Yoshihiro Nemoto, Jonathan P. Hill, and Katsuhiko ArigaThe Journal of Physical Chemistry C2012 116 (4), 2683-2690Aggregation of gold nanoparticles (AuNPs) can be utilized in chemical and biomolecular sensing as a sensitive and easy-to-visualize process. However, interpretation of experimental results requires a clear understanding of physicochemical processes that ...
Surface-Enhanced Raman Spectroscopy to Probe Reversibly Photoswitchable Azobenzene in Controlled Nanoscale Environments
Yue Bing Zheng, John L. Payton, Choong-Heui Chung, Rong Liu, Sarawut Cheunkar, Bala Krishna Pathem, Yang Yang, Lasse Jensen, and Paul S. WeissNano Letters2011 11 (8), 3447-3452Surface-Enhanced Raman Spectroscopy to Probe Reversibly Photoswitchable Azobenzene in Controlled Nanoscale Environments
Yue Bing Zheng, John L. Payton, Choong-Heui Chung, Rong Liu, Sarawut Cheunkar, Bala Krishna Pathem, Yang Yang, Lasse Jensen, and Paul S. WeissNano Letters2011 11 (8), 3447-3452We apply in situ surface-enhanced Raman spectroscopy (SERS) to probe the reversible photoswitching of azobenzene-functionalized molecules inserted in self-assembled monolayers that serve as controlled nanoscale environments. Nanohole arrays are fabricated ...
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History
- Published In Issue May 18, 2011
- Article ASAPApril 21, 2011
- Received: February 01, 2011
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