title: Cation Tuning toward the Inference of the Gelation Behavior of Supramolecular Gels.
abstract: We serendipitously discovered that the tripeptide Asp-Phe-Phe trifluoroacetic acid salt (hereafter abbreviated as β-AspFF) formed a reversible thermotropic gel in chloroform solution (at temperatures higher than the boiling point of chloroform), and a stable gel in toluene solution (at equal to or lower than the room temperature). Experimental results indicate that doping metal ions into β-AspFF toluene gels can trigger morphological variations in the gel skeleton, thereby increasing gel volume and inducing the collapse of organogels. Investigation on the cation-tuned gelation behavior of β-AspFF can be used to elucidate heating-induced gel collapse (of normal gel) or reverse thermotropic gelation as well as select carbamide and acetamide as activators of β-AspFF gels in chloroform solution at room temperature.
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education &Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Xue
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China.
authors.forename: Huiqiong
authors.initials: H
authors.lastname: Wu
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China.
authors.forename: Ting
authors.initials: T
authors.lastname: He
authors.affiliation: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, Hunan, China.
authors.forename: Rujuan
authors.initials: R
authors.lastname: Shen
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education &Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Yue
authors.affiliation: Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education &Xinjiang Uygur Autonomous Region, Xinjiang University, Urumqi, Xinjiang 830046, China.
authors.forename: Jide
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang