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11.发明授权Method and device to synthesize boron nitride nanotubes and related nanoparticles 有权合成氮化硼纳米管和相关纳米颗粒的方法和装置公开(公告)号：US09394632B2
公开(公告)日：2016-07-19
申请号：US13635897
申请日：2011-03-21
申请人： Alexander K. Zettl
发明人： Alexander K. Zettl
IPC分类号： D01F9/08 , C04B35/622
CPC分类号： B01J19/088 , B01J2219/0809 , B01J2219/0824 , B01J2219/0898 , B82Y40/00 , C01B21/0641 , C04B35/6229 , D01F9/08 , Y10S977/831 , Y10S977/896
摘要： Methods and apparatus for producing chemical nanostructures having multiple elements, such as boron and nitride, e.g. boron nitride nanotubes, are disclosed. The method comprises creating a plasma jet, or plume, such as by an arc discharge. The plasma plume is elongated and has a temperature gradient along its length. It extends along its length into a port connector area having ports for introduction of feed materials. The feed materials include the multiple elements, which are introduced separately as fluids or powders at multiple ports along the length of the plasma plume, said ports entering the plasma plume at different temperatures. The method further comprises modifying a temperature at a distal portion of or immediately downstream of said plasma plume; and collecting said chemical nanostructures after said modifying.
摘要翻译： 用于生产具有多种元素的化学纳米结构的方法和装置，例如硼和氮化物，例如， 氮化硼纳米管。 该方法包括例如通过电弧放电产生等离子体射流或羽流。 等离子体羽毛是细长的并且沿其长度具有温度梯度。 它沿其长度延伸到具有用于引入进料的端口的端口连接器区域中。 进料材料包括多个元件，它们以等离子体羽流的长度在多个端口分别作为流体或粉末引入，所述端口在不同温度下进入等离子体羽流。 该方法还包括改变所述等离子体羽流的远端部分或紧邻下游的温度; 并在所述改性之后收集所述化学纳米结构。
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公开(公告)号：US09385065B2
公开(公告)日：2016-07-05
申请号：US12444149
申请日：2007-10-02
CPC分类号： H01L23/373 , B82Y10/00 , B82Y30/00 , C01B32/18 , F28F13/00 , F28F21/02 , F28F2013/008 , H01L2924/0002 , Y10T428/24091 , Y10T428/30 , H01L2924/00
摘要： Thermal rectifiers using linear nanostructures as core thermal conductors have been fabricated. A high mass density material is added preferentially to one end of the nanostructures to produce an axially non-uniform mass distribution. The resulting nanoscale system conducts heat asymmetrically with greatest heat flow in the direction of decreasing mass density. Thermal rectification has been demonstrated for linear nanostructures that are electrical insulators, such as boron nitride nanotubes, and for nanostructures that are conductive, such as carbon nanotubes.
摘要翻译： 已经制造了使用线性纳米结构作为芯导热体的热整流器。 将高质量密度材料优先添加到纳米结构的一端以产生轴向不均匀的质量分布。 所得到的纳米尺度系统在质量密度降低的方向上以最大的热流不对称地传导热。 对于诸如氮化硼纳米管的电绝缘体和用于导电的纳米结构例如碳纳米管的线性纳米结构已经证明了热矫正。
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公开(公告)号：US20120273733A1
公开(公告)日：2012-11-01
申请号：US13527369
申请日：2012-06-19
CPC分类号： C01B21/064 , B82Y30/00 , C01B21/0648 , C01P2002/82 , C01P2002/85 , C01P2004/03 , C01P2004/04 , C01P2004/13 , C01P2006/22
摘要： A plasma treatment has been used to modify the surface of BNNTs. In one example, the surface of the BNNT has been modified using ammonia plasma to include amine functional groups. Amine functionalization allows BNNTs to be soluble in chloroform, which had not been possible previously. Further functionalization of amine-functionalized BNNTs with thiol-terminated organic molecules has also been demonstrated. Gold nanoparticles have been self-assembled at the surface of both amine- and thiol-functionalized boron nitride Nanotubes (BNNTs) in solution. This approach constitutes a basis for the preparation of highly functionalized BNNTs and for their utilization as nanoscale templates for assembly and integration with other nanoscale materials.
摘要翻译： 已经使用等离子体处理来改变BNNT的表面。 在一个实例中，BNNT的表面已经使用氨等离子体进行了修饰以包括胺官能团。 胺官能化允许BNNTs可溶于氯仿，以前是不可能的。 还已经证明了胺官能化的BNNT与硫醇封端的有机分子的进一步官能化。 金纳米颗粒已经在溶液中在胺和硫醇官能化的氮化硼纳米管（BNNT）的表面处自组装。 这种方法构成了高度官能化的BNNTs的制备和作为纳米尺度模板用于与其他纳米级材料组装和集成的基础。
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公开(公告)号：US08257932B2
公开(公告)日：2012-09-04
申请号：US12034388
申请日：2008-02-20
IPC分类号： G01N33/53
CPC分类号： C12N5/0006 , A61K47/549 , A61K47/58 , A61K47/61 , A61K47/6415 , A61K47/6949 , B82Y5/00 , C12N2501/59
摘要： Disclosed herein are methods and materials by which nanostructures such as carbon nanotubes, nanorods, etc. are bound to lectins and/or polysaccharides and prepared for administration to cells. Also disclosed are complexes comprising glycosylated nanostructures, which bind selectively to cells expressing glycosylated surface molecules recognized by the lectin. Exemplified is a complex comprising a carbon nanotube functionalized with a lipid-like alkane, linked to a polymer bearing repeated α-N-acetylgalactosamine sugar groups. This complex is shown to selectively adhere to the surface of living cells, without toxicity. In the exemplified embodiment, adherence is mediated by a multivalent lectin, which binds both to the cells and the α-N-acetylgalactosamine groups on the nanostructure.
摘要翻译： 本文公开了纳米结构如碳纳米管，纳米棒等与凝集素和/或多糖结合并制备用于细胞的方法和材料。 还公开了包含糖基化纳米结构的复合物，其选择性结合表达由凝集素识别的糖基化表面分子的细胞。 示例性的是包含与脂质类烷烃官能化的碳纳米管的复合物，其与具有重复的α-N-乙酰半乳糖胺糖基团的聚合物连接。 该复合物显示出选择性地附着于活细胞表面，无毒性。 在示例性实施方案中，粘附是由多价凝集素介导的，其与纳米结构上的细胞和α-N-乙酰半乳糖胺基团结合。
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公开(公告)号：US20110247676A1
公开(公告)日：2011-10-13
申请号：US13121667
申请日：2009-09-28
IPC分类号： H01L31/02 , H01L31/042 , H01L31/18 , H01L31/0264
CPC分类号： H01L31/0384 , B82Y20/00 , G02B6/1225 , G02B6/4204 , H01L31/0352 , H01L31/03529 , H01L31/068 , Y02E10/547
摘要： The present invention provides a photovoltaic cell, which is contained within a photonic crystal structure. The photonic crystal is at least two-dimensional, and contains defects to guide incident light, e.g., sunlight, into a crystal cavity, where the concentrated light is guided into a cavity, preferably a photonic optical cavity, which is also a photovoltaic region comprising a semiconductor heterojunction for forming a photovoltaic current.
摘要翻译： 本发明提供一种包含在光子晶体结构内的光伏电池。 光子晶体至少是二维的，并且包含将入射光（例如太阳光）引导到晶体腔中的缺陷，其中集中的光被引导到空腔中，优选光子空腔，其也是包括 用于形成光电流的半导体异质结。
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公开(公告)号：US08033445B1
公开(公告)日：2011-10-11
申请号：US12270643
申请日：2008-11-13
IPC分类号： B23K31/02
CPC分类号： B82Y40/00 , B23K1/0008 , B23K1/19
摘要： A simple technique to solder submicron sized, ohmic contacts to nanostructures has been disclosed. The technique has several advantages over standard electron beam lithography methods, which are complex, costly, and can contaminate samples. To demonstrate the soldering technique graphene, a single atomic layer of carbon, has been contacted, and low- and high-field electronic transport properties have been measured.
摘要翻译： 已经公开了将纳米尺寸的欧姆接触焊接到纳米结构的简单技术。 该技术优于标准电子束光刻方法，其复杂，成本高且可能污染样品。 为了展示焊接技术石墨烯，单一的碳原子层已被接触，并且测量了低和高场电子传输性能。
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公开(公告)号：US20110073562A1
公开(公告)日：2011-03-31
申请号：US12895624
申请日：2010-09-30
申请人： Alexander K. Zettl
发明人： Alexander K. Zettl
CPC分类号： C01B21/0648 , C01B21/064 , C01P2002/01 , C01P2004/24
摘要： The present invention provides a method of fabricating at least one single layer hexagonal boron nitride (h-BN). In an exemplary embodiment, the method includes (1) suspending at least one multilayer boron nitride across a gap of a support structure and (2) performing a reactive ion etch upon the multilayer boron nitride to produce the single layer hexagonal boron nitride suspended across the gap of the support structure.The present invention also provides a method of fabricating single layer hexagonal boron nitride. In an exemplary embodiment, the method includes (1) providing multilayer boron nitride suspended across a gap of a support structure and (2) performing a reactive ion etch upon the multilayer boron nitride to produce the single layer hexagonal boron nitride suspended across the gap of the support structure.
摘要翻译： 本发明提供一种制造至少一种单层六方氮化硼（h-BN）的方法。 在一个示例性实施例中，该方法包括（1）在支撑结构的间隙上悬挂至少一个多层氮化硼，以及（2）对该多层氮化硼进行反应离子蚀刻以产生悬浮在该多层氮化硼上的单层六边形氮化硼 支撑结构的间隙。 本发明还提供一种制造单层六方氮化硼的方法。 在一个示例性实施例中，该方法包括（1）提供悬浮在支撑结构的间隙上的多层氮化硼和（2）对多层氮化硼进行反应离子蚀刻，以产生悬浮在 支撑结构。
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公开(公告)号：US20090277609A1
公开(公告)日：2009-11-12
申请号：US12436253
申请日：2009-05-06
CPC分类号： F28F21/02 , B82Y10/00 , F28F27/00 , F28F2013/008
摘要： Disclosed is a device whereby the thermal conductance of a multiwalled nanostructure such as a multiwalled carbon nanotube (MWCNT) can be controllably and reversibly tuned by sliding one or more outer shells with respect to the inner core. As one example, the thermal conductance of an MWCNT dropped to 15% of the original value after extending the length of the MWCNT by 190 nm. The thermal conductivity returned when the tube was contracted. The device may comprise numbers of multiwalled nanotubes or other graphitic layers connected to a heat source and a heat drain and various means for tuning the overall thermal conductance for applications in structure heat management, heat flow in nanoscale or microscale devices and thermal logic devices.
摘要翻译： 公开了一种通过使一个或多个外壳相对于内芯滑动可以可控地和可逆地调节多壁纳米结构如多壁碳纳米管（MWCNT）的热传导的装置。 作为一个例子，将MWCNT的长度延长190nm后，MWCNT的热导率下降到原始值的15％。 当管收缩时，热导率返回。 该装置可以包括连接到热源和散热的多层纳米管或其它石墨层的数量，以及用于调整用于结构热管理，纳米级或微型装置中的热流和热逻辑装置的整体热传导的各种装置。
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公开(公告)号：US20080199399A1
公开(公告)日：2008-08-21
申请号：US12034388
申请日：2008-02-20
CPC分类号： C12N5/0006 , A61K47/549 , A61K47/58 , A61K47/61 , A61K47/6415 , A61K47/6949 , B82Y5/00 , C12N2501/59
摘要： Disclosed herein are methods and materials by which nanostructures such as carbon nanotubes, nanorods, etc. are bound to lectins and/or polysaccharides and prepared for administration to cells. Also disclosed are complexes comprising glycosylated nanostructures, which bind selectively to cells expressing glycosylated surface molecules recognized by the lectin. Exemplified is a complex comprising a carbon nanotube functionalized with a lipid-like alkane, linked to a polymer bearing repeated α-N-acetylgalactosamine sugar groups. This complex is shown to selectively adhere to the surface of living cells, without toxicity. In the exemplified embodiment, adherence is mediated by a multivalent lectin, which binds both to the cells and the α-N-acetylgalactosamine groups on the nanostructure.
摘要翻译： 本文公开了纳米结构如碳纳米管，纳米棒等与凝集素和/或多糖结合并制备用于细胞的方法和材料。 还公开了包含糖基化纳米结构的复合物，其选择性结合表达由凝集素识别的糖基化表面分子的细胞。 示例性的是包含与脂质类烷烃官能化的碳纳米管的复合物，其与具有重复的α-N-乙酰半乳糖胺糖基团的聚合物连接。 该复合物显示出选择性地附着于活细胞表面，无毒性。 在示例性实施方案中，粘附是由多价凝集素介导的，其与纳米结构上的细胞和α-N-乙酰半乳糖胺基团结合。
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公开(公告)号：US09449851B2
公开(公告)日：2016-09-20
申请号：US14833407
申请日：2015-08-24
申请人： Dillon Wong , Jairo Velasco, Jr. , Long Ju , Salman Kahn , Juwon Lee , Chad E. Germany , Alexander K. Zettl , Feng Wang , Michael F. Crommie
发明人： Dillon Wong , Jairo Velasco, Jr. , Long Ju , Salman Kahn , Juwon Lee , Chad E. Germany , Alexander K. Zettl , Feng Wang , Michael F. Crommie
IPC分类号： H01L21/20 , H01L21/326 , H01L21/479 , H01L21/225 , H01L29/16 , H01L21/02
CPC分类号： H01L21/326 , H01L21/02381 , H01L21/02488 , H01L21/02502 , H01L21/02527 , H01L21/02568 , H01L21/2254 , H01L21/2256 , H01L21/479 , H01L22/14 , H01L29/1606
摘要： This disclosure provides systems, methods, and apparatus related to locally doping two-dimensional (2D) materials. In one aspect, an assembly including a substrate, a first insulator disposed on the substrate, a second insulator disposed on the first insulator, and a 2D material disposed on the second insulator is formed. A first voltage is applied between the 2D material and the substrate. With the first voltage applied between the 2D material and the substrate, a second voltage is applied between the 2D material and a probe positioned proximate the 2D material. The second voltage between the 2D material and the probe is removed. The first voltage between the 2D material and the substrate is removed. A portion of the 2D material proximate the probe when the second voltage was applied has a different electron density compared to a remainder of the 2D material.
摘要翻译： 本公开提供了与局部掺杂二维（2D）材料有关的系统，方法和装置。 在一个方面中，形成包括衬底，设置在衬底上的第一绝缘体，设置在第一绝缘体上的第二绝缘体和设置在第二绝缘体上的2D材料的组件。 在2D材料和衬底之间施加第一电压。 通过施加在2D材料和衬底之间的第一电压，在2D材料和位于2D材料附近的探针之间施加第二电压。 去除2D材料和探头之间的第二电压。 去除2D材料和衬底之间的第一电压。 当施加第二电压时，靠近探针的2D材料的一部分与2D材料的其余部分具有不同的电子密度。
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