Journal ArticleDOI
Features of gold having micrometer to centimeter dimensions can be formed through a combination of stamping with an elastomeric stamp and an alkanethiol ‘‘ink’’ followed by chemical etching
Amit Kumar,George M. Whitesides +1 more
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TLDR
In this paper, a technique for patterning a self-assembled monolayer (SAM) on a gold substrate using an elastomer stamp was described, followed by selective etching in an aqueous, basic solution of cyanide ion and dissolved dioxygen (1M KOH, 0.1 M KCN).Abstract:
This letter describes a technique that can be used to produce well‐defined features of gold. The technique involves patterning of a self‐assembled monolayer (SAM) on a gold substrate using an elastomer stamp (fabricated either from a phenol‐formaldehyde polymer or polydimethylsiloxane), followed by selective etching in an aqueous, basic solution of cyanide ion and dissolved dioxygen (1M KOH, 0.1 M KCN). Electrically conductive structures of gold with dimensions as small as 1 μm have been produced using this procedure. Once a rubber stamp is fabricated, patterning and etching of gold substrates is straightforward. This method is convenient, does not require routine access to clean rooms and photolithographic equipment, and can be used to produce multiple copies of a pattern.read more
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Micro transfer printing on cellulose electro-active paper
TL;DR: In this article, a micro-patterning technique for gold electrode patterning on cellulose electro-active paper (EAPap) is studied for biodegradable and flexible MEMS fabrication.
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3D-microstructure replication processes using UV-curable acrylates
TL;DR: In this article, the effect of an additional separation layer applied by plasma-enhanced chemical vapor deposition (PECVD) and conventional chemical procedures was examined to avoid sticking during the master-replica separation.
Journal ArticleDOI
Urethane–acrylate polymers in high-resolution contact printing
TL;DR: In this paper, the surface energy of PUA polymers can be controlled chemically, producing stamps with tunable polarity and eliminating the need to apply release coatings or to adjust stamping kinetics to facilitate material transfer.
Journal ArticleDOI
Flexible organic field-effect transistors fabricated by the electrode-peeling transfer with an assist of self-assembled monolayer
TL;DR: In this article, an electrode-peeling transfer method was proposed to fabricate a flexible organic field effect transistor (FOE transistor), where source-drain metal electrodes were formed finely on rigid temporary substrate, where a micropatterning process such as photolithography is applicable.
Journal ArticleDOI
Chemical and topographical patterning of hydrogels for neural cell guidance in vitro
TL;DR: Although several patterning techniques are described in the literature, a review of techniques applicable to hydrogel materials is needed and use of these patterned cell–hydrogel constructs might provide novel ways to treat central nervous system deficits in the future.
References
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Book
Advanced Inorganic Chemistry
TL;DR: Cotton and Wilkinson's Advanced Inorganic Chemistry (AIC) as discussed by the authors is one of the most widely used inorganic chemistry books and has been used for more than a quarter century.
Journal ArticleDOI
The use of self-assembled monolayers and a selective etch to generate patterned gold features
TL;DR: Using a number of techniques, such as micromachining, microwriting, electron-beam lithography, ion-beam, and ion beam, it is possible to form patterns of SAMs on the Au surface.