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      Gold supported on ceria doped by Me3+ (Me = Al and Sm) for water gas shift reaction: Influence of dopant and preparation method

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      Author(s)
      Ibrahimova, Vüsala
      Ekiz, Şeyma
      Gezici, Özlem
      Tuncel, Dönüş
      Date
      2011
      Source Title
      Polymer Chemistry
      Print ISSN
      1759-9954
      Publisher
      Royal Society of Chemistry
      Volume
      2
      Issue
      12
      Pages
      2818 - 2824
      Language
      English
      Type
      Article
      Item Usage Stats
      99
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      Abstract
      Here, we report a novel method to synthesize multifunctional nanoparticles that can be used in biological studies, such as in cell imaging and as a carrier for biomolecules/drugs. The nanoparticles were prepared either via Cu-catalyzed or cucurbit[6]uril (CB6)-catalyzed click reactions between azide groups containing hydrophobic blue, green and yellow emitting fluorene-based conjugated polymers and a hydrophilic diaminodialkyne containing cross-linker. Through the click reaction, not only does the cross-linking confer stability, but it also introduces functional groups, such as triazoles and amines, to the nanoparticles. Moreover, CB6 not only acted as a catalyst to facilitate the copper-free click reaction, but it also allowed us to obtain nanoparticles containing rotaxanes in which the triazole units were encapsulated by CB6 units. TEM images of the nanoparticles also showed that they display very interesting morphologies. Incorporation of hydrophilic functional groups to the hydrophobic conjugated polymers resulted in a distinct phase separation, producing Janus-like or patchy particles.
      Keywords
      Light-emitting Diode
      Dots
      Polyfluorene
      Ultrabright
      Multicolor
      Particles
      Permalink
      http://hdl.handle.net/11693/12121
      Published Version (Please cite this version)
      https://doi.org/10.1039/C1PY00332A
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      • Department of Chemistry 640
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