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Immobilization of Gd(III)-DOTA Complexes in Layered Double Hydroxides Thin Film
Immobilization of Gd(III)-DOTA Complexes in Layered Double Hydroxides Thin Film
Bulletin of the Korean Chemical Society. 2013. Nov, 34(11): 3488-3490
Copyright © 2013, Korea Chemical Society
  • Received : August 25, 2013
  • Accepted : August 30, 2013
  • Published : November 20, 2013
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About the Authors
Jong Hyeon Lee
Duk-Young Jung
Department of Chemistry, Sungkyunkwan Advanced Institute of Nanotechnology, Institute of Basic Sciences, Sungkyunkwan University, Suwon 440-746, Korea.

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Experimental
Preparation and Characterization of LDH-DOTA(Gd) Thin Film . LDH-carbonate, [Mg 4 Al 2 (OH) 12 ]CO 3 ·nH 2 O, was prepared using the coprecipitation method. 5a,b The resulting precipitate was hydrothermally treated in deionized water at 180 ℃ to obtain a larger crystal size and to improve crystallinity of LDH-carbonate, followed by drying at 70 ℃. 12 The thin film of LDH-carbonate was prepared on silicon (100) wafers. 6 To prepare the LDH-DOTA, the thin film of LDHcarbonate was transferred into a Teflon-coated autoclave vessel containing 20 mg of DOTA and a binary mixture of ethanol and toluene, and heated at 120 ℃ for 72 h. The LDH-DOTA(Gd) was prepared by immersing the sample in 5 mM of ethanolic Gd(acetate) 3 ·nH 2 O solution for 1h. The XRD patterns were measured using a Rigaku D/MAX-2000 Ultima using Cu-Kα radiation (λ = 1.5405 Å). The SEM and TEM images were taken on a JEOL 7401F and a 300 kV, respectively. FT-IR was undertaken on a Biorad FTS 6000 equipped with a DuraSampl IR II diamond accessory with an ATR mode.
Acknowledgements
This work was supported by the Basic Science Research Programs (NRF-2009-0094023, NRF-2009- 0083540 and NRF-2013R1A1A2007482) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, and Research Fund-2012 of the Catholic University of Korea.
References
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