title: Facile preparation of luminescent and intelligent gold nanodots based on supramolecular self-assembly.
abstract: A new strategy for preparing luminescent and intelligent gold nanodots based on supramolecular self-assembly is described in this paper. The supramolecular self-assembly was initiated through electrostatic interactions and ion pairing between palmitic acid and hyperbranched poly(ethylenimine). The resulting structures not only have the dynamic reversible properties of supramolecules but also possess torispherical and highly branched architectures. Thus they can be regarded as a new kind of ideal nanoreactor for preparing intelligent Au nanodots. By preparing Au nanodots within this kind of supramolecular self-assembly, the environmental sensitivity of intelligent polymers and the optical, electrical properties of Au nanodots can be combined, endowing the Au nanodots with intelligence. In this paper, a supramolecular self-assembly process based on dendritic poly(ethylenimine) and palmitic acid was designed and then applied to prepare fluorescent and size-controlled Au nanodots. The pH response of Au nanodots embodied by phase transfer from oil phase to water phase was also investigated.
authors.affiliation: School of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, People's Republic of China. shiyunfeng2009@gmail.com
authors.forename: Yunfeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Sujuan
authors.initials: S
authors.lastname: Li
authors.forename: Yahui
authors.initials: Y
authors.lastname: Zhou
authors.forename: Qingpan
authors.initials: Q
authors.lastname: Zhai
authors.forename: Mengyue
authors.initials: M
authors.lastname: Hu
authors.forename: Fensha
authors.initials: F
authors.lastname: Cai
authors.forename: Jimin
authors.initials: J
authors.lastname: Du
authors.forename: Jiamiao
authors.initials: J
authors.lastname: Liang
authors.forename: Xinyuan
authors.initials: X
authors.lastname: Zhu
mesh_terms: D006046:Gold / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D049408:Luminescent Agents / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D019308:Palmitic Acid / Q000737:chemistry*; D011094:Polyethyleneimine / Q000737:chemistry*; D045663:Quantum Dots; D055672:Static Electricity
chemical_list: D049408:Luminescent Agents; D019308:Palmitic Acid; D006046:Gold; D011094:Polyethyleneimine