“…In addition, amino acids have many functional side groups with different natures, such as charged, aromatic/aliphatic, or hydrophobic/hydrophilic moieties, which are utilized as binding sites for metal ions and aid in maintaining protein functions. 11 Numerous MOFs preparations with different metal ions have been formulated from different amino acids such as l -tryptophan, 12 l -glutamic acid, 13 l -glutamine, 14 l -alanine, 15 l -tyrosine, 16 l -serine, 17 l -glycine, 18 l -histidine, 19 and l -aspartic acid. 20 …”