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波拉龙工程促进了碳量子点的NIR-II吸收,用于生物成像和癌症治疗

Tesen Zhang¹, Bingzhe Wang¹, Quansheng Cheng¹

¹Institute of Applied Physics and Materials Engineering, University of Macau, Macau SAR, China.

Science advances

|July 5, 2024

概括

研究人员使用极子工程设计了碳量子点 (CQD),以控制光学特性. 这一策略可用于第二次近红外 (NIR-II) 光成像和光热疗法.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
生物医学工程生物医学工程

背景情况:

调整有机半导体的光学特性对于先进的应用至关重要.
在第二个近红外 (NIR-II) 窗口中控制光学带隙仍然是一个重大挑战.

研究的目的:

开发一种用于控制NIR-II窗口中的光学属性的新策略.
探索用于纳米医学应用的碳量子点 (CQD) 中极子工程的潜力.

主要方法:

通过Polaron工程,在碳量子点 (CQD) 中引入了各种缺陷.
研究了缺陷引起的格子扭曲和极子形成.
分析了工程CQD的光学吸收和发射特性.

主要成果:

CQD中的缺陷引起了格子扭曲,形成了吸收近场散射光的极子.
与N相关的空缺产生热能,而与O相关的缺陷则发出NIR-II光.
设计的CQD在NIR-II光成像和光热疗法中得到了成功的应用.

结论:

在NIR-II窗口中,Polaron工程提供了一个可行的策略来调整有机半导体的光学特性.
开发的CQD显示出作为纳米医学应用的NIR-II吸收器的前景,包括成像和治疗.

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