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光成像和信息加密的Lanthanide-doped纳米粒子中NIR-I激活的正对角NIR-IIb/c发射

Qiqing Li^1,2, Yuanping Huang³, Haoyu Zhu^1,4

¹Key Laboratory of Luminescence Science and Technology, Chinese Academy of Sciences & State Key Laboratory of Luminescence Science and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, 130033, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|September 30, 2024

概括

研究人员开发了用于直角近红外辐射的新型纳米粒子,使得更深层的组织成像和安全的信息加密成为可能. 这一突破推动了生物医学传感和生物光子学的发展.

科学领域:

生物光子学生物光子学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

正对角二次近红外 (NIR-II) 辐射对于先进的比率光成像 (RFI) 是至关重要的,提高了组织检测深度,信号噪声比率和信息安全.
以前的正交NIR-II排放仅限于异质结构和混合物,限制了实际应用.

研究的目的:

开发具有空间分离的剂的新型纳米粒子,用于通过不同的NIR-I激发激活不同的NIR-IIb和NIR-IIc排放.
为了证明这些纳米粒子在深层组织成像和安全信息加密应用中的实用性.

主要方法:

通过对Tm3+和Er3+发射器进行空间分离的兴奋剂,合成了NIR-I激活的直角NIR-IIb/c (1530/1825nm) 发射纳米粒子 (ONNPs).
使用RFI技术与ONNP进行波长依赖的光学衰减测量,用于船舶深度检测.
在二进制矩阵中应用光学编码和编码,用于防伪和快速响应 (QR) 码的解密成像.

主要成果:

在不同的NIR-I激发 (808/980 nm) 下,成功开发了ONNP,呈现直交的NIR-IIb和NIR-IIc发射 (1530/1825 nm).
通过使用RFI和ONNPs在组织中提升了血管深度检测,利用波长依赖的光学衰减.
展示了ONNP在4x1二进制矩阵中的有效性,用于安全的防伪和QR码解密成像.

结论:

开发的ONNP为直角NIR-II排放提供了一个实用的平台,克服了以前的限制.
这项技术在推进生物医学传感,深层组织成像和安全信息存储/加密方面具有重大潜力.
这项研究为未来生物光子学和光学安全应用领域的创新铺平了道路.

关键词:

在NIR-II中,您可以找到NIR-II.进行加密,加密.兰他化物兰他化物排放的直角性排放.分度计光成像成像技术

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