作为对生物样本分析的成像方法,脱电喷雾电离和矩阵辅助激光脱/电离是生物样本分析的成像方法
Lanaia Ítala Louzeiro Maciel1, Ricardo Alves Bernardo1, Rafael Oliveira Martins1
1Instituto de Química, Universidade Federal de Goiás, Goiânia, GO, 74690-900, Brazil.
Analytical and bioanalytical chemistry
|June 17, 2023
概括
质谱成像 (MSI) 可视化生物组织中的分子. 本综述详细介绍了吸附电喷离电离-MSI (DESI-MSI) 和矩阵辅助激光吸附/电离-MSI (MALDI-MSI) 分析样品的技术.
科学领域:
- 分析化学 分析化学
- 生物技术是生物技术.
- 分子成像学分子成像学
背景情况:
- 质谱成像 (MSI) 提供了对样品组成和分析物分布的见解.
- 经典显微镜技术在分析复杂的生物样本方面存在局限性.
- MSI提供高灵敏度和多个分析物的同时可视化.
研究的目的:
- 审查MSI技术的应用,以评估生物样本中的外源和内源分子.
- 提供对脱电喷雾电离-MSI (DESI-MSI) 和矩阵辅助激光脱/电离-MSI (MALDI-MSI) 的技术见解.
- 作为一个全面的指南,逐步应用DESI-MSI和MALDI-MSI.
主要方法:
- 关于用于生物组织分析的脱电喷雾电离-MSI (DESI-MSI) 的讨论.
- 详细回顾矩阵辅助激光脱/电离-MSI (MALDI-MSI) 应用.
- 包括技术参数,如扫描速度和几何考虑.
主要成果:
- DESI-MSI和MALDI-MSI能够可视化代谢物,药物,脂质和糖的分布.
- 这些MSI方法比传统显微镜具有优势.
- 该评论强调了使用这些成像技术的最近研究发现.
结论:
- MSI,特别是DESI-MSI和MALDI-MSI,是分析生物样本的强大工具.
- 了解技术参数对于成功的MSI应用至关重要.
- 这些技术显著推进了对生物组织中的分子分布的研究.
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