首页|Amphiphilicity Regulation of AgI Nanoclusters: Self-Assembly and Its Application as a Luminescent Probe
Amphiphilicity Regulation of AgI Nanoclusters: Self-Assembly and Its Application as a Luminescent Probe
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NSTL
Wiley
Research on the self-assembly of various amphiphilic molecules is a relatively new research area and of great significance. However, new kinds of metal-nanocluster (NC)-based amphiphilic molecule have rarely been explored. Herein, hydrophobic cation 1-hexadecyl-3-methylimidazolium (C_(16)mim~+) was chosen to modify hydrophilic (NH_4)_6[Ag_6(mna)_6] (Ag_6-NCs, H_2mna=2-mercaptonicotinic acid) and Ag_6@C_(16)mim-NCs were obtained. Ag_6@C_(16)mim-NCs displayed thermotropic liquid crystal and thermofluorescent properties. Moreover, the Ag_6@C_(16)mim-NCs exhibits benign amphiphilicity, and it can self-assemble into ordered nanosheets and nanorods through aggregation in water/dimethyl sulfoxide (DMSO) binary solvent mixtures, whereas single Ag_6-NCs do not. Meanwhile, the Ag_6@C_(16)mim-NCs also displays aggregation-induced emission properties owing to the restriction of intramolecular vibrations of the capping ligands. Furthermore, the luminescent aggregates could detect arginine selectively with the detection limit at 28μm. This study introduces a new kind of metal-NC-based amphiphilic molecule in a supramolecular self-assembly field, and they have potential to be used as optical materials in applied research.
Key Laboratory of Colloid and Interface Chemistry Ministry of Education, School of Chemistry and Chemical Engineering Shandong University Jinan, 250100 (P.R. China)
National Engineering Technology Research Center for Colloidal Materials Shandong University Shanda Nanlu No. 27 Jinan, 250100 (P.R. China)
NSTL
Wiley
