SYSTEM AND METHOD FOR VISUALIZING CHEMICAL REACTIONS IN REAL TIME

    公开(公告)号:US20180284086A1

    公开(公告)日:2018-10-04

    申请号:US15756657

    申请日:2016-08-30

    IPC分类号: G01N31/22 G01N21/64

    摘要: A nanoparticle based assay for monitoring chemical reactions in real-time, ion concentrations in solution, and oxidation potential of ions in solution is describe. The assay is based on use of photoluminescent perovskite nanoparticles with the composition XYZ3. The XYZ3 nanoparticles are added to a reaction or a solution to be analyzed, and the optoelectronic response of the nanoparticle is proportional to the chemical kinetics of the reaction or concentration of target. The resulting color changes can be qualitatively monitored by eye or quantitatively by spectroscopy. The assays may serve as a compliment or replacement for routine chemical analysis performed over the course of a reaction.

    SYSTEM AND METHOD FOR DELIVERY OF DNA-BINDING CHEMOTHERAPY DRUGS USING NANOPARTICLES
    6.
    发明申请
    SYSTEM AND METHOD FOR DELIVERY OF DNA-BINDING CHEMOTHERAPY DRUGS USING NANOPARTICLES 有权
    使用纳米颗粒递送DNA结合化疗药物的系统和方法

    公开(公告)号:US20120141550A1

    公开(公告)日:2012-06-07

    申请号:US13286847

    申请日:2011-11-01

    摘要: System and method for loading the front line anticancer drug, doxorubicin (DOX) onto DNA-capped gold nanoparticles whose duplex DNA has been designed for specific DOX intercalation. Since each AuNP contains about 108 high affinity drug sites, this design allows for a high local DOX concentration on the particle. Drug binding was confirmed by monitoring the increase in DNA melting temperature, the shift in the plasmon resonance maximum, and the increase in the NP hydrodynamic radius as a function of [DOX]/[DNA] ratio. The feasibility of the nanoparticles as a drug delivery system was demonstrated by showing that particle-bound DOX could be transferred to a target DNA.

    摘要翻译: 将前线抗癌药物多柔比星(DOX)加载到DNA封端的金纳米颗粒上的系统和方法,其双链DNA已被设计用于特定的DOX插层。 由于每个AuNP含有约108个高亲和力的药物部位,因此该设计允许颗粒上的高的局部DOX浓度。 通过监测DNA熔解温度的升高,等离子体共振最大值的移动和作为[DOX] / [DNA]比率的函数的NP流体动力学半径的增加来证实药物结合。 通过显示粒子结合的DOX可以转移到靶DNA来证明纳米颗粒作为药物递送系统的可行性。

    SYSTEM AND METHOD FOR SYNTHESIZING CORE/ALLOY NANOSTRUCTURES
    7.
    发明申请
    SYSTEM AND METHOD FOR SYNTHESIZING CORE/ALLOY NANOSTRUCTURES 审中-公开
    用于合成核/合金纳米结构的系统和方法

    公开(公告)号:US20120114962A1

    公开(公告)日:2012-05-10

    申请号:US13291376

    申请日:2011-11-08

    IPC分类号: B32B15/01 B22F9/16

    摘要: A system and method to tailor the optical properties of nanomaterials using a core-alloy-shell nano-ultrastructure. Atomic diffusion is used at the nanoscale in order to process as-synthesized nanomaterials into core-alloy-shell architectures. The alloy formation is controlled by the deposition of the alloy solute atoms, and then by alloy interdiffusion of the solute into the core nanoparticle. By controlling temperature, it is possible to control how far the solute diffuses into the core, which in turn allows the tailoring of the optical response of the particle itself. The alloy formation and subsequent interdiffusion allows tailoring of the nanoparticle composition and ultrastructure, resulting in a dramatic tunability of the metal nanostructures surface plasmon response.

    摘要翻译: 一种使用核 - 合金 - 壳纳米超微结构定制纳米材料的光学性质的系统和方法。 原子扩散用于纳米级,以便将合成纳米材料加工成核 - 合金 - 壳结构。 合金形成由合金溶质原子的沉积控制,然后通过合金相互扩散溶质进入核心纳米颗粒。 通过控制温度,可以控制溶质扩散到芯中的距离,这又允许调整颗粒本身的光学响应。 合金形成和随后的相互扩散允许调整纳米颗粒组成和超微结构,导致金属纳米结构表面等离子体激元响应的显着的可调性。

    System and method for delivery of DNA-binding chemotherapy drugs using nanoparticles
    9.
    发明授权
    System and method for delivery of DNA-binding chemotherapy drugs using nanoparticles 有权
    使用纳米粒子递送DNA结合化疗药物的系统和方法

    公开(公告)号:US08632789B2

    公开(公告)日:2014-01-21

    申请号:US13286847

    申请日:2011-11-01

    IPC分类号: A61K9/14 A61P35/00 B82B1/00

    摘要: System and method for loading the front line anticancer drug, doxorubicin (DOX) onto DNA-capped gold nanoparticles whose duplex DNA has been designed for specific DOX intercalation. Since each AuNP contains about 108 high affinity drug sites, this design allows for a high local DOX concentration on the particle. Drug binding was confirmed by monitoring the increase in DNA melting temperature, the shift in the plasmon resonance maximum, and the increase in the NP hydrodynamic radius as a function of [DOX]/[DNA] ratio. The feasibility of the nanoparticles as a drug delivery system was demonstrated by showing that particle-bound DOX could be transferred to a target DNA.

    摘要翻译: 将前线抗癌药物多柔比星(DOX)加载到DNA封端的金纳米颗粒上的系统和方法,其双链DNA已被设计用于特定的DOX插层。 由于每个AuNP含有约108个高亲和力的药物部位,因此该设计允许颗粒上的高的局部DOX浓度。 通过监测DNA熔解温度的升高,等离子体共振最大值的移动和作为[DOX] / [DNA]比率的函数的NP流体动力学半径的增加来证实药物结合。 通过显示粒子结合的DOX可以转移到靶DNA来证明纳米颗粒作为药物递送系统的可行性。

    DNA-guided nanoparticle assemblies
    10.
    发明授权
    DNA-guided nanoparticle assemblies 有权
    DNA引导的纳米颗粒组件

    公开(公告)号:US08487084B2

    公开(公告)日:2013-07-16

    申请号:US12418355

    申请日:2009-04-03

    IPC分类号: C07H21/04

    摘要: In some embodiments, DNA-capped nanoparticles are used to define a degree of crystalline order in assemblies thereof. In some embodiments, thermodynamically reversible and stable body-centered cubic (bcc) structures, with particles occupying

    摘要翻译: 在一些实施方案中,使用DNA封装的纳米粒子来限定其组装中的结晶度。 在一些实施方案中,形成具有占据单元电池的〜10%的颗粒的热力学可逆和稳定的体心立方(bcc)结构。 鉴定了适用于颗粒组件结晶的设计和途径。 在一些实施例中,提供等离子体激元晶体。 在一些方面,提供了一种用于控制颗粒组合的性质的方法。 在一些实施方案中,催化剂由通过核酸序列连接的纳米颗粒形成,并形成具有在其表面或间隙附着于晶体的催化活性剂的开放晶体结构。