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Biomimetic method for metallic nanostructured mesoscopic models fabrication

Published online by Cambridge University Press:  11 March 2013

Gennady V. Strukov  and
Galina K. Strukova
Gennady V. Strukov*
Affiliation:
Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka,
Galina K. Strukova
Affiliation:
Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka,
*
*E-mail: [email protected]
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Abstract

Various metallic structures of complex shape, resembling natural objects such as plants, mushrooms, and seashells, were produced when growing nanowires by means of pulsed current electroplating in porous membranes. These structures occur as the result of nanowires self-assembling (biomimetics) if the electroplating is continued after the nanowires reach the membrane surface. By varying the membrane geometry and the pulsed current parameters, and alternating electroplating from two baths with different electrolytes, various models were fabricated, including a hollow container with wall thickness of 10-30 nm. The possibility of shape regulation for models was demonstrated: in certain conditions, mushroom- and shell-like convex-concave models of the same kind were obtained. The hierarchical structure of models at the nano-, micro- and mesoscopic levels is shown through fragmentation and chemical etching. This biomimetic method suggests an analogy between the shape-forming processes of natural plants and their metallic models. Nanostructured mesoscopic objects of metals (Ag, Pd, Rh, Ni, Bi), alloys (PdNi, PdCo, PbIn) as well as their combinations (PdNi/ Pb, PdNi/ PbIn) were obtained. The technological simplicity of the present method makes it suitable for fabricating nanostructured materials that may be efficient in catalysis, superhydrophobic applications, medical filters, and nanoplasmonics.

Keywords

biomimetic (assembly)nanostructureelectrodeposition
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1498: Symposium M – Biomimetic, Bio-inspired and Self-Assembled Materials for Engineered Surfaces and Applications , 2013 , pp. 183 - 188
Copyright
Copyright © Materials Research Society 2013 

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References

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