Amino acids are organic compounds that serve as the building blocks of proteins and play crucial roles in various biological processes.

Angewandte Chemie ( meaning "Applied Chemistry") is a weekly peer-reviewed scientific journal that is published by Wiley-VCH on behalf of the German Chemical Society (Gesellschaft Deutscher Chemiker).

Angioplasty is a medical procedure used to widen narrowed or blocked blood vessels, typically the coronary arteries.

An antibody, also known as an immunoglobulin, is a large Y-shaped protein produced by the immune system to neutralize pathogens such as bacteria and viruses.

Bacteria are single-celled microorganisms that have a wide range of shapes and sizes.

Bone marrow is a soft, gelatinous tissue found within the hollow spaces of bones.

The Wikipedia page for "Electron" provides a comprehensive summary of the subatomic particle known as an electron.