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    • 8. 发明申请
    • POLYMER-COATED NANOPARTICLES
    • 聚合物包覆纳米粒子
    • US20110014473A1
    • 2011-01-20
    • US12449227
    • 2007-01-31
    • Jackie Y. YingNandanan ERATHODIYILNikhil R. JANA
    • Jackie Y. YingNandanan ERATHODIYILNikhil R. JANA
    • B32B27/00B05D3/00C07K2/00
    • G01N33/54346B82Y5/00G01N33/54393Y10T428/2998
    • Polymers for coating nanoparticles (e.g., colloid nanoparticles and quantum dots) and methods associated therewith are provided. Such polymers may be derived from amino acids comprising suitable functional groups for associating the polymer to the nanoparticle. For example, in some embodiments, the polymer includes a polypeptide backbone (e.g., polyaspartic acid) with amino acid side groups (e.g., cysteine and/or methionine). Such a polymer can enable strong binding of the polymer to the nanoparticle surface via its multiple thiol groups, which can lead to excellent colloidal stability. Moreover, the carboxylic acid and amine functional groups of the polymer can facilitate attachment of binding partners (e.g., antibodies) to the polymer, which can allow the polymer-coated nanoparticle to be used in a variety of applications including protein detection and cell labeling.
    • 提供用于涂覆纳米颗粒的聚合物(例如,胶体纳米颗粒和量子点)以及与之相关的方法。 这样的聚合物可以衍生自包含用于将聚合物与纳米颗粒缔合的合适官能团的氨基酸。 例如,在一些实施方案中,聚合物包括具有氨基酸侧基(例如半胱氨酸和/或甲硫氨酸)的多肽主链(例如,聚天冬氨酸)。 这样的聚合物可以通过其多个硫醇基团实现聚合物与纳米颗粒表面的强烈结合,这可导致优异的胶体稳定性。 此外,聚合物的羧酸和胺官能团可促进结合配偶体(例如抗体)与聚合物的连接,这可以使聚合物包被的纳米颗粒用于多种应用,包括蛋白质检测和细胞标记。