Self-Assembled Peptide Nanotubes as an Etching Material for the Rapid Fabrication of Silicon Wires (English)

In: BioNanoScience   ;  1 ,  1  ;  31-37  ;  2011

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Abstract This study has evaluated self-assembled peptide nanotubes (PNTS) and nanowires (PNWS) as etching mask materials for the rapid and low-cost fabrication of silicon wires using reactive ion etching (RIE). The self-assembled peptide structures were fabricated under mild conditions and positioned on clean silicon wafers, after which these biological nanostructures were exposed to an RIE etching process. Following this treatment, the structure of the remaining nanotubes and nanowires was analyzed by scanning electron microscopy (SEM). Important differences in the behavior of the nanotubes and the nanowires were observed after the RIE process. The nanotubes remained intact while the nanowires were destroyed by the RIE process. The instability of the peptide nanowires during this process was further confirmed with focused ion beam milling experiments. The PNTS could stand energetic argon ions for around 32 s while the PNWS resisted only 4 s before becoming milled. Based on these results, self-assembled PNTS were further used as an etching mask to fabricate silicon wires in a rapid and low-cost manner. The obtained silicon wires were subjected to structural and electrical characterization by SEM and I–V measurements. Additionally, the fabricated silicon structures were functionalized with fluorescent molecules via a biotin–streptavidin interaction in order to probe their potential in the development of biosensing devices.

Table of contents – Volume 1, Issue 1

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The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

1
New Insight on Bio-sensing by Nano-fabricated Memristors
Sacchetto, Davide / Doucey, Marie-Agnès / Micheli, Giovanni / Leblebici, Yusuf / Carrara, Sandro | 2011
4
Influence of Gold Nanoparticles on Radiation Dose Enhancement and Cellular Migration in Microbeam-Irradiated Cells
Rahman, Wan Nordiana / Davidson, Robert / Yagi, Naoto / Bansal, Vipul / Geso, Moshi / Darby, Ian | 2011
14
Dynamic Failure of a Lamina Meshwork in Cell Nuclei under Extreme Mechanical Deformation
Qin, Zhao / Buehler, Markus J. | 2011
24
Material Memristive Device Circuits with Synaptic Plasticity: Learning and Memory
Erokhin, Victor / Berzina, Tatiana / Camorani, Paolo / Smerieri, Anteo / Vavoulis, Dimitris / Feng, Jianfeng / Fontana, Marco P. | 2011
31
Self-Assembled Peptide Nanotubes as an Etching Material for the Rapid Fabrication of Silicon Wires
Larsen, Martin B. / Andersen, Karsten B. / Svendsen, Winnie E. / Castillo-León, Jaime | 2011
38
Detection of Aflatoxin B1 with a Label-Free Ellipsometry Immunosensor
Nabok, Alexei V. / Mustafa, Mohd Kamarulzaki / Tsargorodskaya, Anna / Starodub, Nikolaj F. | 2011
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Electroanalysis of Cytochrome P450 3A4 Catalytic Properties with Nanostructured Electrodes: The Influence of Vitamin B Group on Diclofenac Metabolism
Makhova, Anna A. / Shumyantseva, Victoria V. / Shich, Evgeniya V. / Bulko, Tatyana V. / Kukes, Vladimir G. / Sizova, Oksana S. / Ramenskaya, Galina V. / Usanov, Sergei A. / Archakov, Alexander I. | 2011
53
Structure, Scaling, and Performance of Natural Micro- and Nanocomposites
Bekah, Sacheen / Rabiei, Reza / Barthelat, Francois | 2011
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