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    Carbon nanotube-based robust steamphobic surfaces
    1.
    发明授权
    Carbon nanotube-based robust steamphobic surfaces 有权

    公开(公告)号：US10245625B2

    公开(公告)日：2019-04-02

    申请号：US14131254

    申请日：2012-07-09

    Applicant: Ali Dhinojwala ,  Sunny Sethi ,  Ila Badge

    Inventor： Ali Dhinojwala ,  Sunny Sethi ,  Ila Badge

    IPC: C23C18/00 ,  B08B17/06 ,  C23C16/505 ,  B05D5/08 ,  B05D1/00

    Abstract: A method for creating a superhydrophobic coated nanoporous assembly includes the steps of: providing a nanoporous assembly formed of discrete and/or continuous structures that provide a morphology defining pores of less than 1 micron between neighboring discrete and continuous structures; bringing gaseous plasma precursors in the presence of the nanoporous assembly and in the presence of a plasma generator; employing the plasma generator to convert the gaseous plasma precursors to the plasma state; and permitting the plasma precursors to deposit as a coating on the nanoporous assembly through plasma polymerization techniques the deposition thereof preserving the porous structure of the nanoporous assembly, the deposited coating exhibiting a surface energy of less than 30 dynes/cm.

    Carbon nanotube based field emission devices and methods
    3.
    发明授权
    Carbon nanotube based field emission devices and methods 有权
    基于碳纳米管的场致发射器件及方法

    公开(公告)号：US09184015B2

    公开(公告)日：2015-11-10

    申请号：US13502854

    申请日：2010-09-20

    Applicant: Ali Dhinojwala ,  Sunny Sethi

    Inventor： Ali Dhinojwala ,  Sunny Sethi

    IPC: H01B1/04 ,  H01J1/304 ,  H01J9/02 ,  H01J31/12

    CPC classification number: H01J1/304 ,  H01J9/025 ,  H01J31/123 ,  H01J2201/30469 ,  H01J2329/0455 ,  Y10T156/10

    Abstract: A method of fabricating a cathodic portion of a field emission display includes the steps of producing an array of substantially parallel carbon nanotubes attached at one end to a substantially planar substrate. Then, embedding the nanotubes in a polymer matrix that extends to a plane of attachment of the nanotubes to the planar substrate, wherein the polymer matrix allows an end of the nanotubes distal from the ends attached to the planar substrate, uncovered by the polymer matrix in order to allow electrical contact with each other and with an attached conductor. Next, detaching the array from the planar substrate, thus producing a surface having the formerly attached ends of the nanotubes substantially in a plane, and then attaching the conductor to the array of nanotube ends, uncovered by the polymer matrix and distal to the plane.

    Abstract translation: 制造场致发射显示器的阴极部分的方法包括以下步骤：在一端附接到基本平坦的基底上产生基本平行的碳纳米管阵列。 然后，将纳米管嵌入到延伸到纳米管与平面基底的连接平面的聚合物基质中，其中聚合物基质允许纳米管的端部远离附着于平面基底的末端，未被聚合物基体覆盖 以允许彼此电连接并连接导体。 接下来，将阵列从平面基板分离，从而产生具有先前连接的纳米管端部的表面基本上在一个平面内的表面，然后将导体附着到由聚合物基体覆盖并且远离该平面的纳米管端部阵列上。

    SELF-ASSEMBLED MELANIN PARTICLES FOR COLOR PRODUCTION
    4.
    发明申请
    SELF-ASSEMBLED MELANIN PARTICLES FOR COLOR PRODUCTION 有权

    公开(公告)号：US20230080523A1

    公开(公告)日：2023-03-16

    申请号：US17943667

    申请日：2022-09-13

    Applicant: Ali DHINOJWALA ,  Ming XIAO ,  Ziying HU ,  Matthew SHAWKEY ,  Nathan GIANNESCHI

    Inventor： Ali DHINOJWALA ,  Ming XIAO ,  Ziying HU ,  Matthew SHAWKEY ,  Nathan GIANNESCHI

    IPC: B01J13/18 ,  C09B67/08 ,  C09B69/10

    Abstract: In various embodiments, the present invention is directed to a facile one-pot reverse emulsion process to assemble core-shell nanoparticles (CS-SMNPs) into bright and noniridescent photonic supraballs. In one or more embodiments, the present invention is directed to core-shell nanoparticles having an inner high refractive index (RI) core and an outer low RI shell. In one or more embodiment, the present invention includes core-shell nanoparticles using high RI (˜1.74) melanin cores and low-RI (˜1.45) silica shells. In various embodiments, these nanoparticles may be self-assembled into bright and noniridescent supraballs using a scalable one-pot reverse emulsion process. According to various embodiments of the present invention, it is possible to generate a full spectrum of structural colors with the combination of only two ingredients, synthetic melanin and silica.

    Production of a wide gamut of structural colors using binary mixtures of particles with a potential application in ink jet printing
    7.
    发明授权
    Production of a wide gamut of structural colors using binary mixtures of particles with a potential application in ink jet printing 有权

    公开(公告)号：US11001088B2

    公开(公告)日：2021-05-11

    申请号：US16701896

    申请日：2019-12-03

    Applicant: Ali Dhinojwala ,  Mario Alberto Echeverri ,  Anvay Arun Patil

    Inventor： Ali Dhinojwala ,  Mario Alberto Echeverri ,  Anvay Arun Patil

    IPC: B41M5/00 ,  B05D1/00 ,  B41J2/21

    Abstract: In one or more embodiments, the present invention provides a method of applying or printing structural colors to a substrate that involves pre-treatment of the substrate surface to prevent absorption of the fluid containing the particles. This allows the fluid to maintain their sessile drop shapes and as the water evaporates, the colloidal particles spontaneously assemble within the confined geometry into semi-ordered structures that interact with light to produce structural color. While the pre-treatment may be done in a variety of ways, application of a, hydrophobic and/or oleophobic coating, like 1H-IH,2H-perfluoro-1-dodecene (C10F21—CH═CH2) (perfluoro) monomer, fluoroalkyls, fluorohydroalkyls, cyclo-fluoroalkyls, fluorobenzen, by plasma-enhanced chemical vapor deposition (cold plasma treatment) has been found to be effective, particularly for printing applications. These treated substrates allow production of a wide range of structural colors using binary systems of nanoparticles.

    CARBON NANOTUBE BASED FIELD EMISSION DEVICES AND METHODS
    8.
    发明申请
    CARBON NANOTUBE BASED FIELD EMISSION DEVICES AND METHODS 有权
    基于碳纳米管的场发射装置和方法

    公开(公告)号：US20120235097A1

    公开(公告)日：2012-09-20

    申请号：US13502854

    申请日：2010-09-20

    Applicant: Ali Dhinojwala ,  Sunny Sethi

    Inventor： Ali Dhinojwala ,  Sunny Sethi

    IPC: H01B1/04 ,  B32B37/14 ,  B82Y30/00

    CPC classification number: H01J1/304 ,  H01J9/025 ,  H01J31/123 ,  H01J2201/30469 ,  H01J2329/0455 ,  Y10T156/10

    Abstract: A method of fabricating a cathodic portion of a field emission display includes the steps of producing an array of substantially parallel carbon nanotubes attached at one end to a substantially planar substrate. Then, embedding the nanotubes in a polymer matrix that extends to a plane of attachment of the nanotubes to the planar substrate, wherein the polymer matrix allows an end of the nanotubes distal from the ends attached to the planar substrate, uncovered by the polymer matrix in order to allow electrical contact with each other and with an attached conductor. Next, detaching the array from the planar substrate, thus producing a surface having the formerly attached ends of the nanotubes substantially in a plane, and then attaching the conductor to the array of nanotube ends, uncovered by the polymer matrix and distal to the plane.

    Abstract translation: 制造场致发射显示器的阴极部分的方法包括以下步骤：在一端附接到基本平坦的基底上产生基本平行的碳纳米管阵列。 然后，将纳米管嵌入到延伸到纳米管与平面基底的连接平面的聚合物基质中，其中聚合物基质允许纳米管的端部远离附着于平面基底的末端，未被聚合物基体覆盖 以允许彼此电连接并连接导体。 接下来，将阵列从平面基板分离，从而产生具有先前连接的纳米管端部的表面基本上在一个平面内的表面，然后将导体附着到由聚合物基体覆盖并且远离该平面的纳米管端部阵列上。

    HUMIDITY RESPONSIVE MATERIALS AND SYSTEMS AND METHODS USING HUMIDITY RESPONSIVE MATERIALS
    9.
    发明申请
    HUMIDITY RESPONSIVE MATERIALS AND SYSTEMS AND METHODS USING HUMIDITY RESPONSIVE MATERIALS 审中-公开
    湿度响应材料和系统以及使用湿度响应材料的方法

    公开(公告)号：US20110297904A1

    公开(公告)日：2011-12-08

    申请号：US12990406

    申请日：2009-05-01

    Applicant: Ali Dhinojwala ,  Todd Blackledge ,  Ingi Agnarsson

    Inventor： Ali Dhinojwala ,  Todd Blackledge ,  Ingi Agnarsson

    IPC: B66B1/00 ,  C07K14/00 ,  C07K14/435

    CPC classification number: D01F4/02 ,  G01N19/10 ,  Y10T442/10

    Abstract: The invention relates to silk or other materials formed to have predetermined contraction/relaxation characteristics, wherein the contraction/relaxation characteristics are initiated by exposure thereof to predetermined humidity characteristics in the adjacent atmosphere. The materials may comprise a single silk fiber, a bundle of fibers of a predetermined size or diameter, a meshwork of fibers forming a predetermined configuration such as one or more sheets, bundles or other bodies. In this manner, the material can be scaled across a size range of any desired magnitude to produce predetermined force and/or displacement characteristics in association therewith.

    Abstract translation: 本发明涉及形成为具有预定收缩/松弛特性的丝或其它材料，其中收缩/松弛特性通过在相邻气氛中暴露于预定湿度特性而开始。 材料可以包括单丝纤维，预定尺寸或直径的纤维束，形成预定构型的纤维网，例如一个或多个片，束或其它物体。 以这种方式，材料可以在任何所需大小的尺寸范围内缩放以产生与之相关联的预定力和/或位移特性。

    Aligned carbon nanotube-polymer materials, systems and methods
    10.
    发明授权
    Aligned carbon nanotube-polymer materials, systems and methods 有权
    碳纳米管聚合物材料，系统和方法

    公开(公告)号：US07927666B2

    公开(公告)日：2011-04-19

    申请号：US11428185

    申请日：2006-06-30

    Applicant: Pulickel M. Ajayan ,  Ali Dhinojwala

    Inventor： Pulickel M. Ajayan ,  Ali Dhinojwala

    IPC: B05D3/02 ,  B05D5/12

    CPC classification number: C08K7/24 ,  C08K2201/011 ,  Y10T428/24174

    Abstract: The invention is directed to carbon nanostructure composite systems which may be useful for various applications, including as dry adhesives, electronics and display technologies, or in a wide variety of other areas where organized nanostructures may be formed and integrated into a flexible substrate. The present invention provides systems and methods wherein organized nanotube structures or other nanostructures are embedded within polymers or other flexible materials to provide a flexible skin-like material, with the properties and characteristics of the nanotubes or other nanostructures exploited for use in various applications. In one aspect, the invention is directed to a carbon nanotube/polymer composite material having a plurality of carbon nanotubes formed into a predetermined architecture, with each of the plurality of nanotubes having a desired width and length. The architecture of the plurality of nanotubes defines at least one orientation for a plurality of nanotubes, and also defines the approximate spacing between nanotubes and/or groups of nanotubes. The carbon nanotube architecture is at least partially embedded with a polymer matrix in a manner that the architecture is stabilized in the predetermined architecture. The polymer matrix may also be formed to have a desired predetermined thickness.

    Abstract translation: 本发明涉及可用于各种应用的碳纳米结构复合体系，其包括作为干燥粘合剂，电子和显示技术，或者可以形成有组织的纳米结构并集成到柔性基底中的各种各样的其它区域。 本发明提供了其中有组织的纳米管结构或其他纳米结构嵌入聚合物或其它柔性材料中以提供柔性皮肤样材料的系统和方法，其中纳米管或其它纳米结构的性质和特性被用于各种应用。 一方面，本发明涉及一种碳纳米管/聚合物复合材料，其具有形成为预定结构的多个碳纳米管，多个纳米管中的每一个具有期望的宽度和长度。 多个纳米管的结构限定了多个纳米管的至少一个取向，并且还限定了纳米管和/或纳米管组之间的近似间隔。 碳纳米管结构至少部分地以聚合物基质嵌入，使得体系结构在预定的结构中是稳定的。 聚合物基质也可以形成为具有所需的预定厚度。

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