Metal organic frameworks as advanced adsorbent materials for separation and analysis of complex samples

Area of Science:

• Proteomics
• Analytical Chemistry
• Materials Science

Background:

• Protein phosphorylation and glycosylation studies require effective sample pre-treatment.
• Low concentrations and matrix effects challenge direct detection of phosphoproteins and glycoproteins via mass spectrometry (MS).
• Efficient and specific enrichment methods are crucial for analyzing these biomolecules.

Purpose of the Study:

• To review recent advancements in metal-organic frameworks (MOFs) for sample pre-treatment in proteomics.
• To discuss MOF-based enrichment strategies for proteins, peptides, glycopeptides, phosphopeptides, and glycans.
• To explore the design and synthesis of MOFs tailored for specific enrichment mechanisms.

Main Methods:

• Literature review of MOF applications in sample preparation for mass spectrometry.
• Analysis of different MOF structures and their enrichment principles.
• Discussion of MOFs for targeted enrichment of post-translational modifications.

Main Results:

• MOFs demonstrate significant potential for the enrichment of various biomolecules, including proteins, peptides, glycopeptides, and phosphopeptides.
• Diverse MOF designs enable specific and efficient capture of target analytes.
• MOF-based methods address challenges associated with low analyte concentration and matrix interference.

Conclusions:

• MOF-based sample pre-treatment is a promising approach to overcome limitations in proteomics analysis.
• Tailored MOF design can enhance the specificity and efficiency of enrichment processes.
• Further development in MOF materials and strategies is expected to advance proteomics sample preparation.