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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Manufacture of high-aspect-ratio micro-hair sensor arrays
TL;DR: In this article, a concept for the manufacture of arrays of micro-hairs is presented allowing us to create extremely high aspect ratio of the filiform micro-Hairs, based on a 'lost mould process' allowing for frictionless de-moulding of the sensor array by melting respectively dissolution of a mould.
Journal ArticleDOI
Microstructuring of solid-supported lipid layers using SAM pattern generation by scanning electrochemical microscopy and the chemical lens.
TL;DR: To prepare patterns of adsorption sites for alkanethiols with high lateral resolution, the SECM was used to etch masks into uniform layers of nickel coated on gold surfaces using fluorescent liposomes containing tetramethylrhodamine-labeled phospholipids.
Journal ArticleDOI
Polymer-Pen Chemical Lift-Off Lithography.
Xiaobin Xu,Xiaobin Xu,Qing Yang,Qing Yang,Kevin M Cheung,Kevin M Cheung,Chuanzhen Zhao,Chuanzhen Zhao,Natcha Wattanatorn,Natcha Wattanatorn,Jason N. Belling,Jason N. Belling,John M. Abendroth,John M. Abendroth,Liane Siu Slaughter,Liane Siu Slaughter,Chad A. Mirkin,Chad A. Mirkin,Anne M. Andrews,Anne M. Andrews,Paul S. Weiss,Paul S. Weiss +21 more
TL;DR: The results suggest that through informed design of a stamp support system and tuning of polymer-pen base widths, throughput can be increased by eliminating the need for a scanning stage system in PPCLL without sacrificing precision.
Journal ArticleDOI
Simple benchtop patterning of hydrogel grids for living cell microarrays
TL;DR: A novel method using woven Nylon mesh to micropattern three-dimensional alginate hydrogel grids on glass slides to address the need for a simple, inexpensive, benchtop method for micro-patterning glass slides and obtaining living cell microarrays.
Patent
Die for micro-contact printing and method for the production thereof
TL;DR: In this article, a die for micro-contact printing comprising a die body and a die surface firmly connected to the die body, the surface of which is subdivided into at least two regions made of at least 2 different materials with different absorbencies of die ink, wherein at least one of the regions has a lateral dimension of a maximum of 1000 nanometers.
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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.