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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Systems, methods, and devices using stretchable or flexible electronics for medical applications
Roozbeh Ghaffari,Bassel de Graff,Gilman Callsen,William J. Arora,Benjamin Schlatka,Eugene Kuznetsov +5 more
TL;DR: In this paper, a system, devices and methods are presented that integrate stretchable or flexible circuitry, including arrays of active devices for enhanced sensing, diagnostic, and therapeutic capabilities, enabling conformal sensing contact with tissues of interest such as the inner wall of a lumen, a nerve bundle, or the surface of the heart.
Journal ArticleDOI
Chemisorbed poly(propylene sulphide)-based copolymers resist biomolecular interactions
Jane P. Bearinger,Samuel Terrettaz,Roger Michel,Nicola Tirelli,Horst Vogel,Marcus Textor,Jeffrey A. Hubbell +6 more
TL;DR: In this article, a triblock copolymer with poly(ethylene glycol) (PEG) was selected, with the goal of minimizing biological adsorption and adhesion.
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Surface-initiated controlled polymerization as a convenient method for designing functional polymer brushes: From self-assembled monolayers to patterned surfaces
TL;DR: In this article, the authors highlight recent and most important approaches to form monolayers and to subsequently elaborate homogeneous and heterogeneous coatings of polymer brushes by surface-initiated polymerization.
Journal ArticleDOI
Stamps, inks and substrates: polymers in microcontact printing
Tobias Kaufmann,Bart Jan Ravoo +1 more
TL;DR: Polymers are widely used as stamps, inks and substrates in μCP and the important role of polymers is focused on.
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Preparation and characterization of dendrimer monolayers and dendrimer - Alkanethiol mixed monolayers adsorbed to gold
Hideo Tokuhisa,Mingqi Zhao,Lane A. Baker,Vy T. Phan,Daniel L. Dermody,Maurie E. Garcia,Robert F. Peez,Richard M. Crooks,Thomas M. Mayer +8 more
TL;DR: In this article, single component monolayers of dendrimers and two component monlayers consisting of n-alkanethiols immobilized on Au substrates are described, which are prepared by exposing an Au substrate to ethanolic solutions of amine- or hydroxy-terminated polyamidoamine (PAMAMAM) dielders.
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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.