Mass Spectrometry
Mass spectrometry is a technique that is used to deduce the structure and identity of molecules. The method relies on measuring the mass-to-charge ratio of ions, followed by analysis of the pattern by chemists who are able to deduce the arrangement of atoms and covalent bonds from that pattern.

Proteomic Analysis
Proteomic analysis refers to large-scale analysis of proteins, with special emphasis on protein structure and biological function.

Secreted Mucus
Mucus is a slippery substance secreted by a variety of tissues, and has complex composition and biological functions. It includes components involved in defense against foreign substances, such as enzymes that dissolve bacterial walls such as lysozyme, as well as antibody molecules.

It is thought that mucus may bind to a variety of signaling molecules, growth factors, and other proteins and small molecules of biological interest. Analysis of the components and interactions of mucus has many applications of medical interest, including major human diseases such as cystic fibrosis.