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生物医学应用的NIR-II上转化纳米材料
Ranran Luo1, Chenxi Zhang1, Zening Zhang1
1Department of Radiology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China. lrr990710@163.com.
Nanoscale
|December 24, 2024
概括
上转化纳米材料通过利用NIR-II窗口进行先进的生物医学成像,以更深入地透组织并减少背景噪声. 本综述强调了它们的制备,应用以及在诊断和治疗中的未来潜力.
科学领域:
- 非线性光学和纳米材料科学.
- 生物医学成像和诊断.
- 光子学和光谱学. 在光子学和光谱学.
背景情况:
- 上转化 (UC) 纳米材料吸收低能光子发射,提供光稳定性和增强组织透等优势.
- 传统的UC纳米材料使用可见光面对由于吸收和散射而导致组织透和成像质量的限制.
- 近红外I (NIR-I) 窗口 (700-900 nm) UC纳米材料提高了透性,但仍在与背景信号作斗争.
研究的目的:
- 审查针对近红外II (NIR-II) 窗口 (1000-1700 nm) 专门设计的上转化纳米材料的最新进展.
- 探索NIR-II上转化纳米材料的制备方法,生物医学成像中的应用以及生物背景.
- 讨论生物医学研究中NIR-II升级材料的当前挑战和未来前景.
主要方法:
- 文献综述侧重于在NIR-II光谱区域中运行的上转化纳米材料.
- 对NIR-II上转化纳米材料的合成和制备技术的分析.
- 在生物医学成像,疾病诊断和生物标志物检测中报告的应用的总结.
主要成果:
- 在NIR-II区域的上转化纳米材料显示出深层组织成像的显著潜力,这是由于其优越的透率和减少的自光.
- 最近的研究重点是新的制备策略,以优化NIR-II应用的量子产量和稳定性.
- 新兴的应用包括体内成像,药物输送和具有增强信号噪声比的超声波.
结论:
- 在NIR-II窗口中的上转化纳米材料代表了高分辨率,深层组织生物医学成像的前沿.
- 对合成优化和有针对性的传递系统的进一步研究对于临床翻译至关重要.
- 克服材料稳定性和信号检测方面的挑战将释放这些材料在先进诊断和治疗方面的全部潜力.
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