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    • 1. 发明申请
    • Self-healing coating and microcapsules to make same
    • 自愈膜和微胶囊相同
    • US20080152815A1
    • 2008-06-26
    • US11789811
    • 2007-02-22
    • Larry D. StephensonCurtis ThiesAshok KumarSrinivasan Sarangapani
    • Larry D. StephensonCurtis ThiesAshok KumarSrinivasan Sarangapani
    • C08K9/10B05D3/00B32B5/16
    • C09D5/086B05D5/005C08K9/10C09D7/69C09D7/70Y10T428/2984Y10T428/2985
    • A self-healing coating, incorporating medium-sized microcapsules filled with a liquid formulation, repairs itself upon physical compromise. In one embodiment, a commercial primer is mixed with these microcapsules and applied. After the coating has cured, any physical compromise of the cured coating results in the microcapsules bursting to release the liquid, in turn filling and sealing the compromised volume of the coating. In applications where a product is used to provide corrosion protection, the liquid contains anti-corrosion material as well as suitable diluents and film-forming compounds. In a preferred embodiment, the microcapsules are provided separately to be mixed with commercial products during preparation for application of the coating. For example, if a paint formulation is known a priori, tailored microcapsules packaged separately from the paint and designed for use with the paint formulation, are wet mixed into the paint during preparation for application.
    • 包含充满液体制剂的中等尺寸微胶囊的自修复涂层在物理妥协时自行修复。 在一个实施方案中,将商业引物与这些微胶囊混合并施用。 在涂层固化之后,固化涂层的任何物理损害导致微胶囊破裂以释放液体,反过来填充和密封受损的体积的涂层。 在产品用于提供腐蚀保护的应用中,液体含有防腐蚀材料以及合适的稀释剂和成膜化合物。 在优选的实施方案中,微胶囊单独提供以在制备涂料期间与商品混合。 例如,如果涂料配方是已知的,则预先将与涂料分开包装并设计用于涂料配方的定制微胶囊在制备应用期间被湿混合到涂料中。
    • 2. 发明授权
    • Self-healing coating and microcapsules to make same
    • 自愈膜和微胶囊相同
    • US07192993B1
    • 2007-03-20
    • US10377642
    • 2003-03-04
    • Srinivasan SarangapaniAshok KumarCurtis ThiesLarry D. Stephenson
    • Srinivasan SarangapaniAshok KumarCurtis ThiesLarry D. Stephenson
    • B32B5/16B32B9/00B32B15/02C08K9/00C08K9/04
    • C09D5/086B05D5/005C08K9/10C09D7/69C09D7/70Y10T428/2984Y10T428/2985
    • A liquid self-healing coating, incorporating microcapsules filled with tailored repair formulations, repairs itself upon physical compromise after curing. In one embodiment, a commercially available paint primer is mixed with a pre-specified amount of these microcapsules. After the coating has cured on the substrate to which it is applied, any physical compromise of the cured coating results in the microcapsules bursting to release a liquid that fills and seals the compromised volume of the coating. In applications where paint is used to provide corrosion protection, the liquid contains anti-corrosion material as well as suitable diluents and film-forming compounds. In another embodiment, the microcapsules may be provided separately to enhance commercially available products. For example, if a paint formulation is known a priori, specifically configured microcapsules packaged separately from the paint and designed for use with the paint formulation, may be added to the commercially available product just prior to application.
    • 液体自修复涂层,包含充满定制修复配方的微胶囊,在固化后的物理折磨下自行修复。 在一个实施方案中,将市售的油漆底漆与预定量的这些微胶囊混合。 涂层在其所施加的基材上固化之后,固化涂层的任何物理损害导致微胶囊爆裂以释放填充并密封受损的涂层体积的液体。 在使用涂料提供防腐蚀保护的应用中,液体含有防腐蚀材料以及合适的稀释剂和成膜化合物。 在另一个实施方案中,可以分开提供微胶囊以增强市售产品。 例如,如果涂料配方是已知的,则可以在施用之前将先前专门配置的与涂料分开包装且设计用于涂料配方的微胶囊加入市售产品中。
    • 3. 发明申请
    • NANO-SCALE FLUORO-BIOSENSORS EXHIBITING A LOW FALSE ALARM RATE FOR RAPID DETECTION OF BIOLOGICAL CONTAMINANTS
    • 展示生物污染物快速检测的低错误报警率的纳米级荧光生物传感器
    • US20090270269A1
    • 2009-10-29
    • US12110386
    • 2008-04-28
    • Ashok KumarLarry D. StephensonJeremy A. HaleElizabeth J. Norton
    • Ashok KumarLarry D. StephensonJeremy A. HaleElizabeth J. Norton
    • C12M1/34G01N33/50C40B30/04
    • G01N33/542G01N21/6428G01N33/54366G01N2021/6432
    • A sensing system incorporating a nano-scale fluoro-biosensor for detection of specifically targeted bio-contaminants (targets). Select embodiments use fluorescent nanoparticles such as quantum dots (QD) conjugated to antibody fragments to form a sensor for a specific bio-contaminant based on fluorescent resonance energy transfer (FRET). A quenching dye may be used to label an analog, while a specific antibody is covalently bonded to a hydrophilic QD. Coupling of QD labeled antibodies and quencher labeled analogs provides enough proximity to produce appreciable FRET-based quenching. Any addition of the target displaces the dye-labeled bacteria, eliminating FRET-based quenching and results in a concentration-dependent increase in QD photoluminescence. Applications include rapid detection and identification, with a high degree of specificity and sensitivity, of a broad range of targets, including viral contaminants, e.g., in less than about three minutes. By using QDs of varying wavelengths the system may be adapted into a multiplexing immuno-assay.
    • 包含用于检测特异性靶向生物污染物(靶)的纳米级氟生物传感器的感测系统。 选择实施方案使用与抗体片段缀合的荧光纳米颗粒例如量子点(QD),以形成基于荧光共振能量转移(FRET)的特定生物污染物的传感器。 可以使用淬灭染料来标记类似物,而特异性抗体与亲水性QD共价结合。 QD标记的抗体和猝灭标记的类似物的偶联提供足够的接近度以产生明显的基于FRET的淬灭。 目标的任何添加取代了染料标记的细菌,消除了基于FRET的猝灭,并导致QD光致发光的浓度依赖性增加。 应用包括快速检测和鉴定,具有高度特异性和灵敏度的广泛靶标,包括病毒污染物,例如在少于约3分钟内。 通过使用不同波长的量子点,该系统可以适应多路复用免疫测定。
    • 4. 发明授权
    • Self-healing coatings using microcapsules to suppress lead dust
    • 使用微胶囊抑制铅尘的自愈涂层
    • US07342057B2
    • 2008-03-11
    • US10923890
    • 2004-08-24
    • Ashok KumarLarry D. Stephenson
    • Ashok KumarLarry D. Stephenson
    • C08J3/00C08K9/00C08L75/00C08G18/80B32B5/16
    • C09D5/002C04B20/1037C04B26/02C04B2111/00482C08K9/10C09D7/40C09D7/69Y10T428/2985C04B22/002C04B22/064C04B24/2611C04B40/0641C04B40/0675C04B2103/0075
    • Self-healing coatings incorporate microcapsules of about 60-150 microns diameter that contain film formers and dust suppression compounds suitable for controlling spalling of lead dust, for example. In one embodiment, a primer paint is mixed with these microcapsules and applied by brushing or rolling. After the coating has cured, any physical compromise of the coating results in microcapsules bursting to release liquid that fills and seals the compromised volume. The microcapsule contents protect the underlying substrate from damage and repair some of the outer coating. In one application, embodiments of these self-healing coatings seal existing lead-based paint for suppression of lead dust. In another embodiment, microcapsules are provided separately to enhance commercially available products. For example, if a paint formulation is known a priori, specifically configured microcapsules, packaged separately from the paint and designed for use with the paint formulation, are added to the paint just prior to application.
    • 自修复涂层包含约60-150微米直径的微胶囊,其包含适用于控制铅粉尘剥落的成膜剂和粉尘抑制化合物。 在一个实施方案中,将底漆与这些微胶囊混合并通过刷涂或滚涂进行涂布。 在涂层固化之后,涂层的任何物理损害导致微胶囊破裂以释放填充并密封受损体积的液体。 微胶囊内容物保护底层基材免受损坏并修复一些外涂层。 在一个应用中,这些自修复涂层的实施例密封现有的铅基涂料以抑制铅尘。 在另一个实施方案中,单独提供微胶囊以增强市售产品。 例如,如果涂料配方是已知的,则在施涂前将先前,特别配置的微胶囊与涂料分开包装并设计用于涂料配方,加入到涂料中。
    • 6. 发明授权
    • DNA biochip and methods of use
    • DNA生物芯片和使用方法
    • US08916343B2
    • 2014-12-23
    • US12931116
    • 2011-01-24
    • Arun KumarAshok KumarShree R. SinghSouheil Zekri
    • Arun KumarAshok KumarShree R. SinghSouheil Zekri
    • C12Q1/68C12M1/36G01N15/06C07H21/04G01N33/569G01N33/53
    • G01N33/56983C12Q1/6825C12Q1/6837G01N33/5308C12Q2527/125C12Q2565/501C12Q2565/607
    • The subject invention concerns materials and methods for detecting nucleic acid sequences. One aspect of the invention concerns a silicon-based “biochip” comprising nucleic acid immobilized thereon. In one embodiment, the silicon comprises microcavities. The nucleic acid to be assayed for the presence of one or more target nucleic acid sequences is immobilized on the silicon. A nucleic acid, such as an oligonucleotide probe, having a sequence substantially complementary to the target nucleic acid sequence can be used to detect the immobilized nucleic acid on the silicon. If the nucleic acid used for detection hybridizes with a target nucleic acid sequence, the hybridized sequences can be detected directly or indirectly. In an exemplified embodiment, the oligonucleotide probe can be labeled with a detectable label, for example, a fluorescent molecule. The subject invention also concerns methods for detecting a target nucleic acid using a silicon-based biochip of the invention.
    • 本发明涉及用于检测核酸序列的材料和方法。 本发明的一个方面涉及包含固定在其上的核酸的硅基“生物芯片”。 在一个实施例中,硅包括微腔。 要测定的一种或多种靶核酸序列的存在的核酸被固定在硅上。 可以使用具有与靶核酸序列基本上互补的序列的核酸,例如寡核苷酸探针,以检测硅上的固定化核酸。 如果用于检测的核酸与靶核酸序列杂交,则可以直接或间接检测杂交的序列。 在示例性实施方案中,寡核苷酸探针可以用可检测标记,例如荧光分子标记。 本发明还涉及使用本发明的硅基生物芯片检测靶核酸的方法。