相对光谱和质谱成像方法用于可视化软组织部分中药物分布的相关光谱和质谱成像方法
Vasundhara Tyagi1, Alex Dexter1, Jean-Luc Vorng1
1Chemical & Biological Sciences Department, National Physical Laboratory.
Journal of visualized experiments : JoVE
|July 7, 2025
概括
一种新的相关成像技术结合了光学显微镜和质谱法,可视化了皮肤组织中的药物分布. 这种方法准确地绘制了化学物质的分布图,有助于了解局部药物透到生物组织中的情况.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 分析化学 分析化学
- 药理动力学 药理动力学
背景情况:
- 了解生物组织中的药物分布对于药物开发和有效性至关重要.
- 现有的成像技术往往缺乏详细化学分析所需的灵敏度或空间分辨率.
- 相对成像通过结合多种分析方法提供了一个潜在的解决方案.
研究的目的:
- 开发和验证一种新的相关成像方法,用于可视化软组织中的化学分布.
- 评估非类固醇抗炎药物 (迪克洛菲纳克) 在切除的人体皮肤组织中的分布.
- 整合光学和质谱成像数据进行全面分析.
主要方法:
- 使用非破坏性的光学光谱方法 (刺激拉曼散射,第二波生成,双光子光显微镜) 来进行结构绘图.
- 采用飞行时间二次离子质谱仪 (ToF-SIMS) 来敏感检测二二.
- 开发图像记录技术,将光学和质谱成像数据结合起来.
主要成果:
- 成功地可视化了在切除的皮肤组织的表皮和皮肤中的二甲的分布.
- 证明了用于成像组织形态的亚微米空间分辨率.
- 实现了敏感的药物检测,使化学物质分布的详细绘制成为可能.
结论:
- 开发的相关成像方法提供了组织结构的高分辨率可视化和敏感化学物质检测.
- 这种方法对于研究皮肤和其他软生物组织中的药物分布是有价值的.
- 结合无标签成像与敏感的化学分析,以增强生物洞察力.
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