Core-shell and segmented polymer-metal composite nanostructures

Michal Lahav; Emily A. Weiss; Qiaobing Xu; George M. Whitesides

doi:10.1021/nl061786n

Core-shell and segmented polymer-metal composite nanostructures

Michal Lahav, Emily A. Weiss, Qiaobing Xu, George M. Whitesides^*

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

133 Scopus citations

Abstract

Composite nanostructures (∼200 nm wide and several micrometers long) of metal and polyaniline (PANI) in two new variations of core-shell (PANI-Au) and segmented (Au-PANI and Ni-Au-PANI) architectures were fabricated electrochemically within anodized aluminum oxide (AAO) membranes. Control over the structure of these composites (Including the length of the gold shells In the core-shell structures) was accomplished by adjusting the time and rate of electrodeposition and the pH of the solution from which the materials were grown. Exposure of the core-shell structures to oxygen plasma removed the PANI and yielded aligned gold nanotubes. In the segmented structures, a self-assembled monolayer (SAM) of thloaniline nucleated the growth of PANI on top of metal nanorods and acted as an adhesion layer between the metal and PANI components.

Original language	English (US)
Pages (from-to)	2166-2171
Number of pages	6
Journal	Nano letters
Volume	6
Issue number	9
DOIs	https://doi.org/10.1021/nl061786n
State	Published - Sep 2006

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Mechanical Engineering
Bioengineering
General Materials Science

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10.1021/nl061786n

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title = "Core-shell and segmented polymer-metal composite nanostructures",

abstract = "Composite nanostructures (∼200 nm wide and several micrometers long) of metal and polyaniline (PANI) in two new variations of core-shell (PANI-Au) and segmented (Au-PANI and Ni-Au-PANI) architectures were fabricated electrochemically within anodized aluminum oxide (AAO) membranes. Control over the structure of these composites (Including the length of the gold shells In the core-shell structures) was accomplished by adjusting the time and rate of electrodeposition and the pH of the solution from which the materials were grown. Exposure of the core-shell structures to oxygen plasma removed the PANI and yielded aligned gold nanotubes. In the segmented structures, a self-assembled monolayer (SAM) of thloaniline nucleated the growth of PANI on top of metal nanorods and acted as an adhesion layer between the metal and PANI components.",

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T1 - Core-shell and segmented polymer-metal composite nanostructures

AU - Lahav, Michal

AU - Weiss, Emily A.

AU - Xu, Qiaobing

AU - Whitesides, George M.

PY - 2006/9

Y1 - 2006/9

N2 - Composite nanostructures (∼200 nm wide and several micrometers long) of metal and polyaniline (PANI) in two new variations of core-shell (PANI-Au) and segmented (Au-PANI and Ni-Au-PANI) architectures were fabricated electrochemically within anodized aluminum oxide (AAO) membranes. Control over the structure of these composites (Including the length of the gold shells In the core-shell structures) was accomplished by adjusting the time and rate of electrodeposition and the pH of the solution from which the materials were grown. Exposure of the core-shell structures to oxygen plasma removed the PANI and yielded aligned gold nanotubes. In the segmented structures, a self-assembled monolayer (SAM) of thloaniline nucleated the growth of PANI on top of metal nanorods and acted as an adhesion layer between the metal and PANI components.

AB - Composite nanostructures (∼200 nm wide and several micrometers long) of metal and polyaniline (PANI) in two new variations of core-shell (PANI-Au) and segmented (Au-PANI and Ni-Au-PANI) architectures were fabricated electrochemically within anodized aluminum oxide (AAO) membranes. Control over the structure of these composites (Including the length of the gold shells In the core-shell structures) was accomplished by adjusting the time and rate of electrodeposition and the pH of the solution from which the materials were grown. Exposure of the core-shell structures to oxygen plasma removed the PANI and yielded aligned gold nanotubes. In the segmented structures, a self-assembled monolayer (SAM) of thloaniline nucleated the growth of PANI on top of metal nanorods and acted as an adhesion layer between the metal and PANI components.

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Core-shell and segmented polymer-metal composite nanostructures

Abstract

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