Guosheng Shi, Yaru Dang, Tingting Pan, Xing Liu, Hui Liu, Shaoxian Li, Lijuan Zhang, Hongwei Zhao, Shaoping Li, Jiaguang Han, Renzhong Tai, Yiming Zhu, Jichen Li, Qing Ji, Richard A. Mole, Dehong Yu and Haiping Fang. “Unexpectedly Enhanced Solubility of Aromatic Amino Acids and Peptides in an Aqueous Solution of Divalent Transition-Metal Cations.” Physical review letters 117 23 (2016): 238102 .
https://doi.org/10.1103/PHYSREVLETT.117.238102