Mass spectrometry imaging (MSI) is often limited by low spatial resolution. Here, the authors propose Gel-Assisted Mass Spectrometry Imaging (GAMSI), which enhances the spatial resolution of MALDI-MSI monitoring of lipids and proteins to the sub-micrometre level without changing existing hardware setups.
- Yat Ho Chan
- Koralege C. Pathmasiri
- Ruixuan Gao