title: Manipulation the properties of supramolecular hydrogels of α-cyclodextrin/Tyloxapol/carbon-based nanomaterials.
abstract: Supermolecular hydrogels were prepared by α-cyclodeatrin (α-CD) and Tyloxapol, which can be considered as an oligomer of the nonionic surfactant polyoxyethylene tert-octylphenyl ether (TX-100) with a polymerization degree below 7. Two carbon materials, graphene oxide (GO) and graphene, were mixed into the α-CD/Tyloxapol hydrogel to adjust the physicochemical properties of hydrogel. In order to get stable graphene dispersion and then mix it with α-CD/Tyloxapol hydrogel, both TX-100 and Tyloxapol were used to disperse graphene for comparison. Interestingly, it can be found that TX-100 could disperse graphene better than Tyloxapol owing to smaller molecular size of TX-100 compared with Tyloxapol. Then, both the α-CD/Tyloxapol/GO and α-CD/Tyloxapol/graphene hydrogels were characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FT-IR) spectroscopy, small angle X-ray scattering (SAXS), X-ray diffraction (XRD) and rheological measurements. The results revealed that the addition of carbon materials into α-CD/Tyloxapol hydrogel can change their microstructures and the rheological properties. Furthermore, it can be confirmed that a little amount of carbon materials could induce fluorescence quenching sharply which could be a promising candidate for optical sensor.
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Shanda nanlu No. 27, Jinan 250100, PR China.
authors.forename: Jinglin
authors.initials: J
authors.lastname: Shen
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Shanda nanlu No. 27, Jinan 250100, PR China; National Engineering Technology Research Center for Colloidal Materials, Shandong University, Shanda nanlu No. 27, Jinan 250100, PR China. Electronic address: xinx@sdu.edu.cn.
authors.forename: Xia
authors.initials: X
authors.lastname: Xin
authors.affiliation: Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan 250062, PR China.
authors.forename: Teng
authors.initials: T
authors.lastname: Liu
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Shanda nanlu No. 27, Jinan 250100, PR China.
authors.forename: Lu
authors.initials: L
authors.lastname: Tong
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Shanda nanlu No. 27, Jinan 250100, PR China.
authors.forename: Guiying
authors.initials: G
authors.lastname: Xu
authors.affiliation: Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education, Shanda nanlu No. 27, Jinan 250100, PR China. Electronic address: shilingyuan@sdu.edu.cn.
authors.forename: Shiling
authors.initials: S
authors.lastname: Yuan
mesh_terms: D002244:Carbon / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D011092:Polyethylene Glycols / Q000737:chemistry*; D013499:Surface Properties; D047391:alpha-Cyclodextrins / Q000737:chemistry*
chemical_list: D020100:Hydrogels; D046911:Macromolecular Substances; D047391:alpha-Cyclodextrins; D011092:Polyethylene Glycols; D002244:Carbon; C016811:tyloxapol; C032613:alpha-cyclodextrin
keywords: Carbon materials; Dispersion; Fluorescence quenching; Supermolecular hydrogels; α-cyclodeatrin