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    • 93. 发明申请
    • CHEMILUMINESCENT DYES AND DYE-STAINED PARTICLES
    • CHEMILUMINESCENT DYES和DYE-STAINED PARTICLES
    • US20120296085A1
    • 2012-11-22
    • US13522296
    • 2010-06-01
    • Bradley Smith
    • Bradley Smith
    • C09B5/00B01J19/12
    • C09K11/06C07D249/04C07D257/10C07D273/00C09K2211/1011C09K2211/1014C09K2211/1059
    • Chemiluminescent compounds that can be activated by reaction with chemical or photochemical sources of singlet oxygen are provided. At certain temperatures, such as from approximately 15 to 60° C., the compounds slowly return to their deactivated state by emitting visible and/or infrared light that is observable with various types of light detectors. Suitable conjugates of these compounds, or small particles containing these compounds, may be used for chemiluminescence imaging and sensing technologies. In particular, embodiments provide optical molecular imaging using novel squaraine rotaxane endoperoxides (SREPs) and squaraine catenane endoperoxides (SCEPs), interlocked fluorescent and chemiluminescent dye molecules that have a squaraine chromophore encapsulated inside a macrocycle endoperoxide. The dyes may be stored at low temperature, such as below 0° C., but, upon warming above 15° C., such as to body temperature, they undergo a unimolecular cycloreversion reaction that releases singlet oxygen and emits visible or near-infrared light that can pass through living tissue. The chemiluminescent signal is detectable with inherently high contrast because there is negligible background emission.
    • 提供了可以通过与单线态氧化学或光化学源反应而被活化的化学发光化合物。 在某些温度,例如约15至60℃,化合物通过发射可用和各种类型的光检测器可观察到的可见光和/或红外光,缓慢地回到其失活状态。 这些化合物或含有这些化合物的小颗粒的合适的缀合物可用于化学发光成像和感测技术。 具体地,实施方案提供使用新型方酸酯轮烷内酯过氧化物(SREP)和方酸核苷正丁烯内过氧化物(SCEP)的光学分子成像,具有封装在大环内酯过氧化物内的方形荧光和化学发光染料分子。 染料可以在低于0℃的低温下储存,但是当温度高于15℃,例如体温时,它们进行单分子旋转反应,其释放单线态氧并发射可见光或近红外 能通过活组织的光。 化学发光信号可以用固有的高对比度检测,因为可忽略的背景辐射。