Patent
Microcontact printing on surfaces and derivative articles
George M. Whitesides,Younan Xia,James L. Wilbur,Rebecca J. Jackman,Enoch Kim,Mara Prentiss,Milan Mrksich,Amit Kumar,Christopher B. Gorman,Hans A. Biebuyck,Karl K. Berggren +10 more
TLDR
In this article, an elastomeric stamp is deformed during and/or prior to using the stamp to print a self-assembled molecular monolayer on a surface.Abstract:
Improved methods of forming a patterned self-assembled monolayer on a surface and derivative articles are provided. According to one method, an elastomeric stamp is deformed during and/or prior to using the stamp to print a self-assembled molecular monolayer on a surface. According to another method, during monolayer printing the surface is contacted with a liquid that is immiscible with the molecular monolayer-forming species to effect controlled reactive spreading of the monolayer on the surface. Methods of printing self-assembled molecular monolayers on nonplanar surfaces and derivative articles are provided, as are methods of etching surfaces patterned with self-assembled monolayers, including methods of etching silicon. Optical elements including flexible diffraction gratings, mirrors, and lenses are provided, as are methods for forming optical devices and other articles using lithographic molding. A method for controlling the shape of a liquid on the surface of an article is provided, involving applying the liquid to a self-assembled monolayer on the surface, and controlling the electrical potential of the surface.read more
Citations
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References
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Journal ArticleDOI
Comparison of the Structures and Wetting Properties of Self-Assembled Monolayers of n- Alkanethiols on the Coinage Metal Surfaces, Cu, Ag, Au'
Paul E. Laibinis,Paul E. Laibinis,George M. Whitesides,David L. Allara,Yu-Tai Tao,Yu-Tai Tao,Atul N. Parikh,Ralph G. Nuzzo +7 more
TL;DR: In this paper, an analysis of the IR data using numerical simulations based on an average single chain model suggests that the alkyl chains in monolayers on silver are all-trans zig-zag and canted by - 12' from the normal to the surface.
Patent
Large scale photolithographic solid phase synthesis of polypeptides and receptor binding screening thereof
TL;DR: In this paper, a polypeptide array can be synthesized on a substrate by attaching photoremovable groups to the surface of a substrate, exposing selected regions of the substrate to light to activate those regions, attaching an amino acid monomer with a photoregressive group to the activated regions, and repeating the steps of activation and attachment until the desired length and sequences are synthesized.
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
TL;DR: 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).
Journal ArticleDOI
Engineering Cell Shape and Function
Rahul Singhvi,Amit Kumar,Gabriel P. Lopez,Gregory Stephanopoulos,Daniel I. C. Wang,George M. Whitesides,Donald E. Ingber +6 more
TL;DR: An elastomeric stamp was used to imprint gold surfaces with specific patterns of self-assembled monolayers of alkanethiols and, thereby, to create islands of defined shape and size that support extracellular matrix protein adsorption and cell attachment.
Journal ArticleDOI
Patterning Self-Assembled Monolayers: Applications in Materials Science
TL;DR: In this paper, a technique for patterning the formation of self-assembled monolayers (SAMs) using an elastomeric stamp was described, which can routinely produce patterns with dimensions from 1 to 100 lrm.
Related Papers (5)
Formation of microstamped patterns on surfaces and derivative articles
Amit Kumar,George M. Whitesides +1 more