Abstract:
The disclosure relates to a method of forming a pattern having pattern elements with a plurality of sizes on a substrate surface with a tilted pen array that includes choosing a tilt geometry for a pen array with respect to a substrate, inducing the tilt geometry between the pen array and the substrate surface, and forming a pattern having pattern elements on the substrate surface with the titled pen array, whereby the size of the formed pattern elements varies across the substrate surface along the tilted axis or axes. For example, the tilt geometry is in reference to the substrate surface and comprises a first angle with respect to a first axis of the substrate and a second angle with respect to a second axis of the substrate, the second axis being perpendicular to the first axis, and at least one of the first and second angles being non-zero.
Abstract:
A method of forming a target pattern using a redox activated surface is disclosed. The method includes patterning a redox agent on a template layer formed on a substrate, the template layer having a first oxidation state, wherein upon contact with the redox agent, the contacted portion of the template layer changes to a second oxidation state different than the first oxidation state, and a template pattern is formed from the portion of the template layer having either the first oxidation state or the second oxidation state, and exposing the substrate having the template pattern to a target material, wherein the target material selectively binds to the template pattern to form a target pattern.
Abstract:
A dual tip probe for scanning probe epitaxy is disclosed. The dual tip probe includes first and second tips disposed on a cantilever arm. The first and second tips can be a reader tip and a synthesis tip, respectively. The dual tip probe further includes a rib disposed on the cantilever arm between the first and second tips. The dual tip probe can also include a strain gauge disposed along the length of the cantilever arm.
Abstract:
Disclosed are methods of lithography using a tip array having a plurality of pens attached to a backing layer, where the tips can comprise a metal, metalloid, and/or semi-conducting material, and the backing layer can comprise an elastomeric polymer. The tip array can be used to perform a lithography process in which the tips are coated with an ink (e.g., a patterning composition) that is deposited onto a substrate upon contact of the tip with the substrate surface. The tips can be easily leveled onto a substrate and the leveling can be monitored optically by a change in light reflection of the backing layer and/or near the vicinity of the tips upon contact of the tip to the substrate surface.
Abstract:
A dual tip probe for scanning probe epitaxy and a method of forming the dual tip probe are disclosed. The dual tip probe includes first and second tips disposed on a cantilever arm. The first and second tips can be a reader tip and a synthesis tip, respectively. The first tip can remain in contact with a substrate during writing and provide in situ characterization of the substrate and or structures written, while the second tip can perform in non-contact mode to write and synthesis nanostructures. This feature can allow the dual tip probe to detect errors in a printed pattern using the first tip and correct the errors using the second tip.
Abstract:
The present invention is directed to a new class of synthetic carbohydrate receptor compounds comprising Formula I as described herein: (I). Other aspects of the present invention relate to pharmaceutical compositions and pharmaceutical delivery vehicles comprising the compound of Formula (I) The present invention is also directed to methods of treatment and diagnosis that involve the administration of a compound of Formula (I).
Abstract:
The disclosure relates to a method of forming a pattern having pattern elements with a plurality of sizes on a substrate surface with a tilted pen array that includes choosing a tilt geometry for a pen array with respect to a substrate, inducing the tilt geometry between the pen array and the substrate surface, and forming a pattern having pattern elements on the substrate surface with the titled pen array, whereby the size of the formed pattern elements varies across the substrate surface along the tilted axis or axes. For example, the tilt geometry is in reference to the substrate surface and comprises a first angle with respect to a first axis of the substrate and a second angle with respect to a second axis of the substrate, the second axis being perpendicular to the first axis, and at least one of the first and second angles being non-zero.
Abstract:
A method and apparatus for 4-dimensional printing are disclosed. The apparatus includes a polymer pen array translatable in three axes, a light source for illuminating the polymer pen array, a reactive surface disposed opposite the polymer pen array, and a flow-through microfluidic cell having a reactive chamber in fluid communication with influx and outflux conduits. Solutions containing reagents are introduced into the reactive chamber, the polymer pen array is inserted into the reactive chamber, and is then illuminated with the light source so as to initiate polymerization between the reagents and the reactive surface.
Abstract:
The present invention is directed to a new class of synthetic carbohydrate receptor compounds comprising Formula I as described herein: (I). Other aspects of the present invention relate to pharmaceutical compositions and pharmaceutical delivery vehicles comprising the compound of Formula (I) The present invention is also directed to methods of treatment and diagnosis that involve the administration of a compound of Formula (I).
Abstract:
Polymer Pen Lithography is used to induce bioorthogonal reactions between treated surfaces and functionalized inks create a soft matter layer. Fluorescent and redox-active inks were used to demonstrate that the molecules were immobilized covalently and achieves precise control over ligand orientation and density within each feature. Finally, the utility was demonstrated by creating functional arrays of biologically active probes.