Magnetic and fluorescence properties of cobalt implanted hydrogels
作者： H Sozeri , A Gelir , E Alveroğlu , M Tulun , Y Yilmaz
DOI: 10.1088/1742-6596/153/1/012067
关键词:
摘要: Co-doped plain gels (PAAm) were prepared with and without pyranine fluoroprobe (8-hydroxypyrene-1, 3,6-trisulfonic acid, trisodium salt; POH), which have a OH- reactive group three SO-3 ionic groups. Magnetization fluorescence measurements used for characterization of the gels. It was observed that both gel itself including only POH (PAAm-POH) diamagnetic response to external field. When synthesized together cobalt (PAAm-Co) cobalt/POH (PAAm-Co-POH), magnetized in direction magnetic field, as expected. However, magnitude magnetization different presence one into molecules diffused after synthesis, even though they same concentration. Fluorescence SEM micrographs understand this surprising difference PAAm-Co-POH proposed electrostatic interaction between groups free electrons (Co+2) atoms led formation Co-POH clusters having fewer unpaired electrons, results decrease overall magnetization. also from images size depends on composition.
harvard.edu
sci-hub.se 参考文章(16)
Ji Hye Kim, Sang Bong Lee, Seon Jeong Kim, Young Moo Lee, Rapid temperature/pH response of porous alginate-g-poly(N-isopropylacrylamide) hydrogels Polymer. ,vol. 43, pp. 7549- 7558 ,(2002) , 10.1016/S0032-3861(02)00675-4
Rebeca Hernández, Aurélie Sarafian, Daniel López, Carmen Mijangos, Viscoelastic properties of poly(vinyl alcohol) hydrogels and ferrogels obtained through freezing–thawing cycles Polymer. ,vol. 45, pp. 5543- 5549 ,(2004) , 10.1016/J.POLYMER.2004.05.061
Ö. Pekcan, Y. Yılmaz, O. Okay, Real time monitoring of polymerization rate of methyl methacrylate using fluorescence probe Polymer. ,vol. 38, pp. 1693- 1698 ,(1997) , 10.1016/S0032-3861(96)00683-0
Ali Gelir, İsmail Yılmaz, Yaşar Yılmaz, None, In situ monitoring of the synthesis of a pyranine-substituted phthalonitrile derivative via the steady-state fluorescence technique Journal of Physical Chemistry B. ,vol. 111, pp. 478- 484 ,(2007) , 10.1021/JP064462W
Adam Winkleman, Paul J. Bracher, Irina Gitlin, George M. Whitesides, Fabrication and Manipulation of Ionotropic Hydrogels Crosslinked by Paramagnetic Ions. Chemistry of Materials. ,vol. 19, pp. 1362- 1368 ,(2007) , 10.1021/CM062626F
Rohan Fernandes, Li-Qun Wu, Tianhong Chen, Hyunmin Yi, Gary W. Rubloff, Reza Ghodssi, William E. Bentley, Gregory F. Payne, Electrochemically Induced Deposition of a Polysaccharide Hydrogel onto a Patterned Surface Langmuir. ,vol. 19, pp. 4058- 4062 ,(2003) , 10.1021/LA027052H
Y. Yılmaz, A. Gelir, F. Salehli, R. R. Nigmatullin, A. A. Arbuzov, Dielectric study of neutral and charged hydrogels during the swelling process. Journal of Chemical Physics. ,vol. 125, pp. 234705- 234705 ,(2006) , 10.1063/1.2349480
Yasar Yilmaz, Ali Gelir, Esra Alveroglu, Nihan Uysal, Testing percolation theory in the laboratory: measuring the critical exponents and fractal dimension during gelation. Physical Review E. ,vol. 77, pp. 051121- ,(2008) , 10.1103/PHYSREVE.77.051121
H. Furukawa, R. Shimojyo, N. Ohnishi, H. Fukuda, A. Kondo, Affinity selection of target cells from cell surface displayed libraries: a novel procedure using thermo-responsive magnetic nanoparticles. Applied Microbiology and Biotechnology. ,vol. 62, pp. 478- 483 ,(2003) , 10.1007/S00253-003-1330-7
Andrij Pich, Sanchita Bhattacharya, Yan Lu, Volodymyr Boyko, Hans-Juergen P. Adler, Temperature-Sensitive Hybrid Microgels with Magnetic Properties Langmuir. ,vol. 20, pp. 10706- 10711 ,(2004) , 10.1021/LA040084F