Patent application number | Description | Published |
20090087622 | Directed Assembly of Carbon Nanotubes and Nanoparticles Using Nanotemplates With Nanotrenches - The present invention provides methods and tools for directed assembly of nanoelements across a large area using a nanosubstrate. The nanosubstrate has a substrate layer, an adhesive layer, a conductive layer, and an insulating layer that is interrupted by one or more nanotrenches or nanowells having a width of at least 20 nm. The nanosubstrate allows the rapid assembly of linear assemblies and arrays of single walled carbon nanotubes and nanoparticles by DC electrophoresis. The density of nanoelements assembled can be controlled by varying the voltage and trench size. Functionalized nanoparticles can be assembled into arrays useful, e.g., as biosensors. | 04-02-2009 |
20090134033 | Directed assembly of a conducting polymer - The present invention provides a method for directed assembly of a conducting polymer. A method of the invention comprises providing a template such as an insulated template and electrophorectically assembling a conducting polymer thereon. Preferably, the template comprises a patterned electrode on which the conducting polymer is assembled. Moreover, the invention provides a method for transferring an assembled conducting polymer. For example, a method of the invention comprises providing a substrate such as a polymeric substrate and contacting a surface thereof with an assembled conducting polymer. The assembled conducting polymer can be disposed on a patterned electrode of a template, hi one embodiment, a method comprises removing the substrate. By removing the substrate, the assembled conducting polymer is transferred from the patterned electrode of the template to the substrate. The invention also provides a device with a template or substrate comprising an assembled conducting polymer. | 05-28-2009 |
20100038794 | THREE DIMENSIONAL NANOSCALE CIRCUIT INTERCONNECT AND METHOD OF ASSEMBLY BY DIELECTROPHORESIS - An assembly of nanoelements forms a three-dimensional nanoscale circuit interconnect for use in microelectronic devices. A process for producing the circuit interconnect includes using dielectrophoresis by applying an electrical field across a gap between vertically displaced non-coplanar microelectrodes in the presence of a liquid suspension of nanoelements such as nanoparticles or single-walled carbon nanotubes to form a nanoelement bridge connecting the microelectrodes. The assembly process can be carried out at room temperature, is compatible with conventional semiconductor fabrication, and has a high yield. The current-voltage curves obtained from the nanoelement bridge demonstrate that the assembly is functional with a resistance of −40 ohms for gold nanoparticles. The method is suitable for making high density three-dimensional circuit interconnects, vertically integrated nanosensors, and for in-line testing of manufactured conductive nanoelements. | 02-18-2010 |
20100116631 | BISTABLE NANOSWITCH - A non-volatile bistable nano-electromechanical switch is provided for use in memory devices and microprocessors. The switch employs carbon nanotubes as the actuation element. A method has been developed for fabricating nanoswitches having one single-walled carbon nanotube as the actuator. The actuation of two different states can be achieved using the same low voltage for each state. | 05-13-2010 |
20100183844 | HIGHLY ORGANIZED SINGLE-WALLED CARBON NANOTUBE NETWORKS AND METHOD OF MAKING USING TEMPLATE GUIDED FLUIDIC ASSEMBLY - Methods for fabricating templates for nanoelement assembly and methods for fluid-guided assembly of nanoelements are provided. Templates are fabricated by plasma modification of surface hydrophilicity and production of a network of hydrophobic trenches having a hydrophilic bottom surface. Single-walled carbon nanotubes (SWNT) can be assembled into stable films, ribbons, and wires of nanoscale thickness and nanoscale or microscale width and length. The nanofilm assemblies prepared according to the invention are highly conductive and can be used in the fabrication of a wide variety of microscale and nanoscale electronic devices. | 07-22-2010 |
20110117582 | MULTI-BIOMARKER BIOSENSOR - Nanosubstrates as biosensors, methods of making such nanosubstrates, and methods of using such nanosubstrates to detect biomarkers are described. | 05-19-2011 |
20120267223 | BISTABLE NANOSWITCH - A non-volatile bistable nano-electromechanical switch is provided for use in memory devices and microprocessors. The switch employs carbon nanotubes as the actuation element. A method has been developed for fabricating nanoswitches having one single-walled carbon nanotube as the actuator. The actuation of two different states can be achieved using the same low voltage for each state. | 10-25-2012 |
20120326310 | NANOSCALE INTERCONNECTS FABRICATED BY ELECTRICAL FIELD DIRECTED ASSEMBLY OF NANOELEMENTS - The invention provides a fast, scalable, room temperature process for fabricating metallic nanorods from nanoparticles or fabricating metallic or semiconducting nanorods from carbon nanotubes suspended in an aqueous solution. The assembled nanorods are suitable for use as nanoscale interconnects in CMOS-based devices and sensors. Metallic nanoparticles or carbon nanotubes are assembled into lithographically patterned vias by applying an external electric field. Since the dimensions of nanorods are controlled by the dimensions of vias, the nanorod dimensions can be scaled down to the low nanometer range. The aqueous assembly process is environmentally friendly and can be used to make nanorods using different types of metallic particles as well as semiconducting and metallic nanaotubes. | 12-27-2012 |
20130330747 | MULTI-BIOMARKER BIOSENSOR - Nanosubstrates as biosensors, methods of making such nanosubstrates, and methods of using such nanosubstrates to detect biomarkers are described. | 12-12-2013 |