title: Colorimetric magnetic microspheres as chemosensor for Cu(2+) prepared from adamantane-modified rhodamine and β-cyclodextrin-modified Fe3O4@SiO2 via host-guest interaction.
abstract: Adamantane-modified salicylrhodamine B and β-cyclodextrin-modified Fe3O4@SiO2 were assemblied by host-guest interactions which induced novel inclusion complex magnetic nanoparticles (SFIC MNPs) colorimetric sensitive for Cu(2+) being prepared. The MNPs exhibit a clear color change from colorless to pink selectively and sensitively with the addition of Cu(2+) in the experiments of UV-visible spectra, and the detection limit measures up to 5.99×10(-6)M in solutions of CH3CN-H2O =1:10. The SFIC magnetic nanoparticles are superparamagnetic according to magnetic measurements and can be separated and collected easily with a commercial magnet in nine seconds. In addition, the microspheres have also showed good ability of separating for other ions from aqueous solutions due to a large number of hydroxyl groups on the surface.
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130021, PR China. Electronic address: yangqb@jlu.edu.cn.
authors.forename: Qingbiao
authors.initials: Q
authors.lastname: Yang
authors.affiliation: Department of Chemistry, Jilin University, Changchun 130021, PR China.
authors.forename: Yaoxian
authors.initials: Y
authors.lastname: Li
authors.affiliation: China Japan Union Hospital, Jilin University, Changchun 130031, PR China. Electronic address: dujianshi3043@126.com.
authors.forename: Jianshi
authors.initials: J
authors.lastname: Du
mesh_terms: D000218:Adamantane / Q000737:chemistry*; D000327:Adsorption; D002681:China; D003300:Copper / Q000032:analysis*; D007700:Kinetics; D060106:Lakes / Q000032:analysis; D057230:Limit of Detection; D058185:Magnetite Nanoparticles / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D014874:Water Pollutants, Chemical / Q000032:analysis; D014961:X-Ray Diffraction; D047392:beta-Cyclodextrins / Q000737:chemistry
chemical_list: D058185:Magnetite Nanoparticles; D012235:Rhodamines; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; D003300:Copper; C031215:betadex; D000218:Adamantane
keywords: Chemosensor; Host–guest interaction; Magnetic microspheres; Rhodamine B; β-Cyclodextrin