Solubility enhancement of aromatic amino acids and peptides in aqueous solution of divalent transition-metal cations - QENS study

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dc.contributor.authorYu, DHen_AU
dc.contributor.authorShi, GSen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorFang, HPen_AU
dc.date.accessioned2021-08-09T22:36:36Zen_AU
dc.date.available2021-08-09T22:36:36Zen_AU
dc.date.issued2017-07-12en_AU
dc.date.statistics2021-08-08en_AU
dc.description.abstractGenerally, the solubility of aromatic amino acids decreases in solution containing multivalent transition-metal ions, such as Cu2+, Pt2+, Pd2+and Co3+, due to the formation of complex precipitates. Surprisingly, we have observed considerably enhanced solubility of tryptophan (Trp) in CuCl2 aqueous solution with a high local concentration of Cu2+ at the surface of Trp [Phys. Rev. Lett. 117, 238102 (2016)]. The solubility increases by 2-5 times that of Trp in pure water. Based on first principle calculations, this unexpected phenomenon is attributed to the strong interaction between Cu2+and the aromatic ring in Trp, referred to as cation–? interaction which modifies the electron distribution of the aromatic ring in Trp and increases the water–aromatic ring interaction.en_AU
dc.identifier.citationYu, D., Shi, G., Mole, R., & Fang, H. (2017). Solubility enhancement of aromatic amino acids and peptides in aqueous solution of divalent transition-metal cations - QENS study. Paper presented at ICNS 2017 (International Conference on Neutron Scattering), Daejeon, South Korea, 9 to 13 July 2017. Retrieved from: http://www.icns2017.org/program.phpen_AU
dc.identifier.conferenceenddate13 July 2017en_AU
dc.identifier.conferencenameICNS 2017 (International Conference on Neutron Scattering)en_AU
dc.identifier.conferenceplaceDaejeon, South Koreaen_AU
dc.identifier.conferencestartdate9 July 2017en_AU
dc.identifier.urihttp://www.icns2017.org/program.phpen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11286en_AU
dc.language.isoenen_AU
dc.publisherInternational Conference on Neutron Scatteringen_AU
dc.subjectTransition elementsen_AU
dc.subjectSolubilityen_AU
dc.subjectCarboxylic acidsen_AU
dc.subjectCationsen_AU
dc.subjectCopperen_AU
dc.subjectElectronsen_AU
dc.titleSolubility enhancement of aromatic amino acids and peptides in aqueous solution of divalent transition-metal cations - QENS studyen_AU
dc.typeConference Abstracten_AU
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