WATER-SOLUBLE NANOCRYSTALS THROUGH DUAL-INTERACTION LIGANDS
    1.
    发明申请
    WATER-SOLUBLE NANOCRYSTALS THROUGH DUAL-INTERACTION LIGANDS 有权
    通过双相互联系的水溶性纳米晶体

    公开(公告)号:US20100311080A1

    公开(公告)日:2010-12-09

    申请号:US12865056

    申请日:2009-01-28

    摘要: A dual-interaction ligand for rendering otherwise hydrophobic nanoparticles water soluble or suspendable has a hydrophilic base with a plurality of hydrophilic segments extending from a core of the base, where at least one segment or the core contains a hydrophobic groups capable of forming van der Waal interaction between hydrophobic groups of the dual-interaction ligand and other hydrophobic ligands, and at least one complexing functionality to complex a metal atom or ion of a nanoparticle. The dual-interaction ligands can be combined with hydrophobic nanoparticles, where the dual-interaction ligands can displace some or all of the hydrophobic ligands of the hydrophobic nanoparticles, to form a nanoparticle-dual interaction ligand complex that can be dissolved or dispersed readily in an aqueous solution. The dual interaction ligand can be functionalized to attach an antibody or other biomolecules such that the nanoparticle dual-interaction ligands complexes can contain biomolecules. Such biomolecules modified nanoparticle dual-interaction ligands can be used for sensing, labeling, optical imaging, magnetic resonance imaging, cell separation, and treatment of diseases.

    摘要翻译: 用于使另外的疏水性纳米颗粒水溶性或悬浮的双相互作用配体具有亲水性碱基,其具有从碱的核心延伸的多个亲水链段,其中至少一个链段或核心包含能够形成范德瓦尔 双相互作用配体和其它疏水性配体的疏水基团之间的相互作用以及与金属原子或纳米颗粒的离子络合的至少一种络合官能团。 双相互作用配体可以与疏水性纳米颗粒结合,其中双相互作用配体可以置换疏水性纳米颗粒的一些或全部疏水性配体,形成纳米颗粒 - 双相互作用配体配合物,其可以容易地溶解或分散在 水溶液。 双相互作用配体可以被官能化以附着抗体或其他生物分子,使得纳米颗粒双重相互作用配体复合物可以含有生物分子。 这种生物分子修饰的纳米颗粒双相互作用配体可用于感测,标记,光学成像,磁共振成像,细胞分离和疾病的治疗。

    Supercrystalline colloidal particles and method of production
    2.
    发明授权
    Supercrystalline colloidal particles and method of production 有权
    超结晶胶体颗粒及其生产方法

    公开(公告)号:US09174186B2

    公开(公告)日:2015-11-03

    申请号:US12672447

    申请日:2008-08-15

    IPC分类号: B01J13/00 A61K9/16 A61K47/02

    CPC分类号: B01J13/0026 B01J13/0043

    摘要: The present invention concerns size- and shape-controlled, colloidal superparticles (SPs) and methods for synthesizing the same. Ligand-functionalized nanoparticles such as nonpolar-solvent-dispersible nanoparticles, are used, and the solvophobic interactions can be controlled. Advantageously, supercrystalline SPs having a superlattice structure, such as a face-centered cubic structure, can be produced. Further, the methods of the invention can provide SPs that self-assemble and are monodisperse. The SPs can be doped with organic dyes and further assembled into more complex structures.

    摘要翻译: 本发明涉及尺寸和形状控制的胶体超微粒(SPs)及其合成方法。 使用配体官能化的纳米粒子,如非极性溶剂分散纳米粒子,可以控制溶剂渗透相互作用。 有利地,可以生产具有超晶格结构的超晶体SP,例如面心立方结构。 此外,本发明的方法可以提供自组装和单分散的SP。 SP可以掺杂有机染料并进一步组装成更复杂的结构。

    Water-soluble nanocrystals through dual-interaction ligands
    3.
    发明授权
    Water-soluble nanocrystals through dual-interaction ligands 有权
    水溶性纳米晶体通过双相互作用配体

    公开(公告)号:US08889429B2

    公开(公告)日:2014-11-18

    申请号:US12865056

    申请日:2009-01-28

    摘要: A dual-interaction ligand for rendering otherwise hydrophobic nanoparticles water soluble or suspendable has a hydrophilic base with a plurality of hydrophilic segments extending from a core of the base, where at least one segment or the core contains a hydrophobic groups capable of forming van der Waal interaction between hydrophobic groups of the dual-interaction ligand and other hydrophobic ligands, and at least one complexing functionality to complex a metal atom or ion of a nanoparticle. The dual-interaction ligands can be combined with hydrophobic nanoparticles, where the dual-interaction ligands can displace some or all of the hydrophobic ligands of the hydrophobic nanoparticles, to form a nanoparticle-dual interaction ligand complex that can be dissolved or dispersed readily in an aqueous solution. The dual interaction ligand can be functionalized to attach an antibody or other biomolecules such that the nanoparticle dual-interaction ligands complexes can contain biomolecules. Such biomolecules modified nanoparticle dual-interaction ligands can be used for sensing, labeling, optical imaging, magnetic resonance imaging, cell separation, and treatment of diseases.

    摘要翻译: 用于使另外的疏水性纳米颗粒水溶性或悬浮的双相互作用配体具有亲水性碱基,其具有从碱的核心延伸的多个亲水链段,其中至少一个链段或核心包含能够形成范德瓦尔 双相互作用配体和其它疏水性配体的疏水基团之间的相互作用以及与金属原子或纳米颗粒的离子络合的至少一种络合官能团。 双相互作用配体可以与疏水性纳米颗粒结合,其中双相互作用配体可以置换疏水性纳米颗粒的一些或全部疏水性配体,形成纳米颗粒 - 双相互作用配体配合物,其可以容易地溶解或分散在 水溶液。 双相互作用配体可以被官能化以附着抗体或其他生物分子,使得纳米颗粒双重相互作用配体复合物可以含有生物分子。 这种生物分子修饰的纳米颗粒双相互作用配体可用于感测,标记,光学成像,磁共振成像,细胞分离和疾病的治疗。

    Doped Nanocrystals
    5.
    发明申请
    Doped Nanocrystals 有权
    掺杂的纳米晶体

    公开(公告)号:US20100055462A1

    公开(公告)日:2010-03-04

    申请号:US12376371

    申请日:2007-08-30

    申请人: Y. Charles Cao

    发明人: Y. Charles Cao

    IPC分类号: B82B1/00 B82B3/00

    摘要: A doping method using a three-step synthesis to make high-quality doped nanocrystals is provided. The first step includes synthesizing starting host particles. The second step includes dopant growth on the starting host particles. The third step includes final shell growth. In one embodiment, this method can be used to form Mn-doped CdS/ZnS core/shell nanocrystals. The Mn dopant can be formed inside the CdS core, at the core/shell interface, and/or in the ZnS shell. The subject method allows precisely controlling the impurity radial position and doping level in the nanocrystals.

    摘要翻译: 提供了使用三步合成制造高品质掺杂纳米晶体的掺杂方法。 第一步包括合成起始的主体颗粒。 第二步包括在起始主体颗粒上的掺杂剂生长。 第三步包括最终的壳增长。 在一个实施方案中,该方法可用于形成Mn掺杂的CdS / ZnS核/壳纳米晶体。 Mn掺杂剂可以形成在CdS芯内,核/壳界面和/或ZnS壳内。 本方法允许精确控制纳米晶体中的杂质径向位置和掺杂水平。

    Methods for forming nanocrystals with position-controlled dopants
    6.
    发明授权
    Methods for forming nanocrystals with position-controlled dopants 有权
    用位置控制掺杂剂形成纳米晶体的方法

    公开(公告)号:US09406759B2

    公开(公告)日:2016-08-02

    申请号:US12376371

    申请日:2007-08-30

    申请人: Y. Charles Cao

    发明人: Y. Charles Cao

    摘要: A doping method using a three-step synthesis to make high-quality doped nanocrystals is provided. The first step includes synthesizing starting host particles. The second step includes dopant growth on the starting host particles. The third step includes final shell growth. In one embodiment, this method can be used to form Mn-doped CdS/ZnS core/shell nanocrystals. The Mn dopant can be formed inside the CdS core, at the core/shell interface, and/or in the ZnS shell. The subject method allows precisely controlling the impurity radial position and doping level in the nanocrystals.

    摘要翻译: 提供了使用三步合成制造高品质掺杂纳米晶体的掺杂方法。 第一步包括合成起始的主体颗粒。 第二步包括在起始主体颗粒上的掺杂剂生长。 第三步包括最终的壳增长。 在一个实施方案中,该方法可用于形成Mn掺杂的CdS / ZnS核/壳纳米晶体。 Mn掺杂剂可以形成在CdS芯内,核/壳界面和/或ZnS壳内。 本方法允许精确控制纳米晶体中的杂质径向位置和掺杂水平。

    Excitation-intensity-dependent, color-tunable, dual emitting nanocrystals
    7.
    发明授权
    Excitation-intensity-dependent, color-tunable, dual emitting nanocrystals 有权
    激发强度相关,颜色可调,双发射纳米晶体

    公开(公告)号:US08410455B2

    公开(公告)日:2013-04-02

    申请号:US12755820

    申请日:2010-04-07

    IPC分类号: G01N21/64

    CPC分类号: C09K11/025 C09K11/565

    摘要: An embodiment of the invention is a device for photo-stimulated color emission having at least one plurally doped semiconducting nanoparticle comprising at least one semiconducting material and a plurality of at least one dopant coupled with an irradiation source such that the plurally doped semiconducting nanoparticle emit electromagnetic radiation at two or more wavelengths where the intensities of the emissions depend on the intensity of the irradiation. In an embodiment of the invention, the plurally doped semiconducting nanoparticle can be a doped core/shell nanoparticle where the plurality of dopants can reside in exclusively the core, exclusively the shell, or in both the core and shell.

    摘要翻译: 本发明的一个实施例是一种用于光刺激颜色发射的装置,其具有至少一个多掺杂的半导体纳米颗粒,其包含至少一种半导体材料和多个与辐射源耦合的至少一种掺杂剂,使得多个掺杂的半导体纳米颗粒发射电磁 在两个或更多个波长处的辐射,其中发射强度取决于照射的强度。 在本发明的一个实施方案中,多掺杂的半导体纳米颗粒可以是掺杂的核/壳纳米颗粒,其中多个掺杂剂可以仅存在于核心中,仅存在于壳中,或者位于核和壳两者中。