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三核甲胺染料用于短波红外在生物成像中的短波红外

Cesar A Garcia¹, Eric Y Lin¹, Emily B Mobley¹

¹Department of Chemistry and Biochemistry, University of California, Los Angeles, California, USA.

Angewandte Chemie (International ed. in English)

|February 17, 2026

概括

新的三核聚甲染料 (PMD) 在体内近红外成像方面表现更好. 这些先进的PMD有效地标记小鼠的淋巴结,优于较旧的双核染料设计.

科学领域:

有机化学有机化学
生物医学成像技术生物医学成像技术
光物理学的光学物理学

背景情况:

聚甲染料 (PMD) 是生物医学成像中的重要光探针.
双核PMD是近红外 (NIR) 和短波红外 (SWIR) 在体内成像的既定支架.
三核PMD为改善成像提供了潜力,但仍未得到充分探索.

研究的目的:

为了合成和描述基于flavylium和chromenylium支架的新型三核PMD.
为了研究这些新染料在微粒中的光物理性质.
评估三核PMDs在小鼠体内SWIR成像中的有效性.

主要方法:

基于flavylium和chromenylium的新型三核甲胺染料支架的合成,使用反应性环烯链接剂.
合成染料的光物理特征,包括它们在微粒中的性能.
在静脉注射后,在小鼠体内进行SWIR成像研究.

主要成果:

三核支架赋予了增加的硬质体积,导致与二核对应物相比,微粒的光物理性质得到了增强.
新型三核PMDs表现出高效的SWIR发射.
在体内研究表明,三核PMD在小鼠的淋巴结标记方面具有很高的效率.

结论:

三核PMDs代表了一个有前途的进步超过双核支架在体内SWIR成像.
这些新型光体表现出卓越的性能和高效的淋巴结向.
开发的三核PMD是用于非侵入性生物医学成像应用的有效工具.

关键词:

光探测器的光探测器影像成像剂影像成像剂接近红外的近红外线.聚甲染料的染料.短波红外线是短波的红外线.

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