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Improved matrix coating for positive- and negative-ion-mode MALDI-TOF imaging of lipids in blood vessel tissues

机译:改进的基质涂层用于血管组织中脂质的正离子模式和负离子模式MALDI-TOF成像

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摘要

High-quality matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI) of lipids in biological tissue relies on the fabrication of a homogeneous matrix coating featuring best possible analyte integration. This communication addresses a matrix vapor deposition/recrystallization process for the application of 1,5-diaminonaphthalene (1,5-DAN) onto slices of human aortic tissue. The matrix coating is compatible with both positive- as well as negative-ion-mode MALDI MSI facilitating a significantly enhanced detection of lipid-related signals in different cell layers of blood vessel walls. Graphical abstract
机译:生物组织中脂质的高质量基质辅助激光解吸/电离质谱成像(MALDI MSI)依赖于均质基质涂层的制造,该涂层具有最佳的分析物整合能力。此通讯解决了将1,5-二氨基萘(1,5-DAN)应用于人体主动脉组织切片的基质气相沉积/重结晶过程。基质涂层与正离子和负离子模式的MALDI MSI兼容,从而有助于显着增强对血管壁不同细胞层中脂质相关信号的检测。 <!-fig ft0-> <!-fig @ position =“ anchor” mode =文章f4-> <!-fig mode =“ anchred” f5-> <!-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> <!-caption a7->图形摘要

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