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可充电的后照超级集群用于NIR可激发的重复光疗
Lulu Yue1, Yilin Liu2, Jing Wang1
1School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.
Nano letters
|November 21, 2024
概括
研究人员为生物医学应用开发了近红外可激发后发光超级星团. 这些超级集群能够进行深层组织光动力疗法,提高治疗效率并抑制瘤生长.
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:
- 后光发光提供了长时间的发射,减少了自发光和最小的光损伤,使其对生物医学应用具有吸引力.
- 当前持久发光通常需要高能激发 (紫外线/可见光),限制组织透和治疗疗效.
- 存在对近红外 (NIR) 光激发后照材料的需求,以更深入地穿透组织.
研究的目的:
- 开发用于增强光动力学治疗 (PDT) 的新型NIR可激发后发光超级集群 (UCZG-SC).
- 为了证明可调节超级星团属性的灵活制造策略.
- 为了创建一个可注射的植入物用于体内PDT应用.
主要方法:
- 采用单表面分离策略,将螺旋相 (Zn1.1Ga1.8Ge0.1O4:Cr3+) 和六角相 (NaYF4:Yb,Tm@NaLuF4:Y) 的纳米粒子组装成可激发NIR后照超级团.
- 该方法允许灵活制造具有不同大小,组成和发光配置的超级星团,而不依赖于晶格相似性.
- 通过将UCZG-SCs嵌入在一个多样性 (乳糖-co-甘油酸) /N-甲基 Pyrrolidone 油溶液中,创建了一个可注射的持久植入物.
主要成果:
- 成功建造了可激发NIR后发光超级星团 (UCZG-SCs),具有出色的充电-再充电稳定性.
- 证明了可用于体内PDT的可注射持久植入物的可行性.
- 在周期性980nm光照明下实现了重复光疗,显著提高了光疗效率并抑制了瘤生长.
结论:
- 开发的一策略为制造各种NIR可激发的持久超级星团提供了灵活的平台.
- UCZG-SCs及其可注射植入物配方对先进的光动力学治疗有很大的前景.
- 这种方法使得高效的,重复的光疗与增强的瘤生长抑制使用深层组织透的NIR光.
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