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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Defined 2-D microtissues on soft elastomeric silicone rubber using lift-off epoxy-membranes for biomechanical analyses
TL;DR: A simple and highly accurate method through cavities of lift-off membranes for protein patterning of silicone rubber substrates in an elasticity range down to 1.5 kPa without altering their mechanical properties is described.
Journal ArticleDOI
Large Area Nano-transfer Printing of Sub-50-nm Metal Nanostructures Using Low-cost Semi-flexible Hybrid Templates
TL;DR: This work presents a method for printing metal micro- and nanopatterns down to sub-50-nm feature sizes using replicated, defect-tolerant stamps made out of OrmoStamp®; material that prevents unintended transfer from interspaces between structures of large distance due to roof collapse and deformation of nano-sized structures due to lateral collapse.
Journal ArticleDOI
Raman and surface enhanced Raman microscopy of microstructured PEI/DNA multilayers
TL;DR: In this article, Raman and surface enhanced Raman spectroscopy (SERS) was used to analyze microstructured multilayer films of poly(ethyleneimine) (PEI) and DNA.
Journal ArticleDOI
Transfer printing of colloidal crystals based on UV mediated degradation of a polymer thin film.
TL;DR: A versatile colloidal transfer printing method that can be used to transfer any type of particles (polymeric/inorganic) to anytype of surface (hydrophobic/hydrophilic; smooth/rough) is reported.
Journal ArticleDOI
Large-area protein nano-arrays patterned by soft lithography
TL;DR: In this paper, the elastomeric stamps were used to pattern regular nano-arrays of proteins on polyethylene glycol surfaces by microcontact printing and the master was fabricated by using colloidal lithography.
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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.