International Business Machines Corporation

Jennifer Nam Cha

James L Hedrick

Robert Dennis Miller

Willi Volksen

Ho-Cheol Kim

Teddie Peregrino Magbitang

Victor Yee-Way Lee

Geraud Jean-Michel Dubois

Christine M Micheel

A structure and method for forming single-stranded DNA segments/single-wall carbon nanotube complexes and a method of preparing single-stranded DNA segments. The method for forming single-stranded DNA segments/single-wall carbon nanotube complexes including: attaching single-stranded DNA segments to single-wall carbon nanotubes to form single-stranded DNA segment/single-wall carbon nanotube complexes, each of the single-stranded DNA segments having a same length of greater than 2,000 bases.

Helical wrapping of single-walled carbon nanotubes by genomic DNA

A structure. The structure includes a substrate and a material adhered to said substrate. The material includes a structural layer and an interfacial layer. The structural layer includes at least one crosslinkable polymer and nanostructures having a predefined morphology. The nanostructures are surrounded by the at least one crosslinkable polymer in the structural layer. The interfacial layer essentially lacks nanostructures and includes essentially the at least one crosslinkable polymer.

Structure including a material having a predefined morphology

A method of forming a material. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of Fand Fwith respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F, of the crosslinkable polymer, a volume fraction, F, of the first block species, and a volume fraction, F, of the second block species is formed. A material having a predefined morphology where the sum of Fand Fwere preselected is formed.

Method of forming a material having a predefined morphology

A material and an associated method of formation. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of Fand Fwith respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F, of the crosslinkable polymer, a volume fraction, F, of the first block species, and a volume fraction, F, of the second block species is formed. A material having a predefined morphology where the sum of Fand Fwere preselected is formed.

Materials having predefined morphologies and methods of formation thereof

Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.

Nanoporous media templated from unsymmetrical amphiphilic porogens

A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.

Nanoporous media with lamellar structures

Disclosed herein is a method of orienting a carbon nanotube comprising functionalizing a nucleic acid or a carbon nanotube with a plurality of functional groups to form either a functionalized nucleic acid or a functionalized carbon nanotube; disposing a nucleic acid on a functionalized carbon nanotube or a functionalized nucleic acid on a carbon nanotube or a functionalized nucleic acid on a functionalized carbon nanotube to form a nucleic acid-carbon nanotube molecular composite; adsorbing the nucleic acid-carbon nanotube molecular composite upon a substrate; the substrate comprising a plurality of material phases, at least one of which the nucleic acid-carbon nanotube molecular composite has an affinity for; and orienting the nucleic acid-carbon nanotube molecular composite so that it contacts two or more identical material phases.

DNA-based functionalization of single walled carbon nanotubes for directed assembly

Disclosed herein is an article comprising a nucleic acid-carbon nanotube molecular composite in selective communication with at least one of a plurality of material phases; the selective communication being the result of an affinity of functional groups present in the nucleic acid-carbon nanotube molecular composite for the at least one of the plurality of material phases; the material phases being at least a part of a substrate; the nucleic acid-carbon nanotube molecular composite comprising at least one of i) a nucleic acid disposed on a functionalized carbon nanotube; ii) a functionalized nucleic acid disposed on a carbon nanotube; and iii) a functionalized nucleic acid disposed on a functionalized carbon nanotube to form a nucleic acid-carbon nanotube molecular composite.

Growing community of inventors

Union City, CA, United States of America

Jennifer Nam Cha