SPECTROSCOPIC INVESTIGATION OF SOME POLY (ACRYLIC ACID) GELS WITH EMBEDDED GOLD NANOPARTICLES
Keywords:
poly (acrylic acid), gold nanoparticles, UV-VIS and fluorescenceAbstract
Some physical properties of poly (acrylic acid) gels with embedded gold nanoparticles, (PAA-GNP), as prepared and after neutralization with triethanolamine, (TEA), were investigated by UV-VIS and fluorescence methods. The UV-VIS spectra of the PAA-GNP gels contain the characteristics absorption peaks of both PAA and GNP pure components, with modified intensities and positions. Excitation at 250 nm of pure PAA and pure GNP are followed by characteristic fluorescence transitions. The peaks of pure components appear in the fluorescence spectrum of the PAA-GNP gels with some modifications compared with the pure state. Some modifications of the UV-VIS and florescence spectra were observed after neutralization with TEA. The particularities of these spectra indicate some changes of the conformation of the polymeric matrices after the introduction of GNP and after neutralization.
References
A.S. Hoffman, Adv. Drug Del. Rev. 2002, 43, 3.
P. Sriamornsak, R.A. Kennedy, Int. J. Pharm. 2006, 323, 78.
M. Todica, E. Dinte, C.V. Pop, C. Farcau, S. Astilean, Journal of Optoelectronics and Advanced Materials, 2008, 10, 823.
M. Todica, Luciana Udrescu, G. Damian, S. Astilean, Journal of Molecular Structure, 2013, 1044, 328.
C.V. Pop, T. Stefan, S. Astilean, M. Todica, Studia Universitatis Babes-Bolyai, Chemia, 2011, LVI, 3, 35
Sorina Garabagiu, C. Pestean, R. Stefan, Journal of Luminescence, 2013, 143, 271.
J.P. Cohen Addad, "Physical Properties of Polymeric Gels", John Wiley and Sons, Chichester, 1996, chapter 5.
Barbara Stuart, "Polymer Analysis", John Wiley and Sons, Chichester, 2002, chapter 2.
R.J. Young, P.A. Lowell, "Introduction to Polymers", Chapman and Hall, London, 1991, chapter 2.
M. Todica, Luciana Udrescu, "Metode experimentale in fizica polimerilor", Presa Universitara Clujeana, 2013, chapter 4.
[M. Todica, Traian Stefan, S. Simon, I. Balasz, L. Daraban, Turkish Journal of Physics, 2014, 38, 261.
A.F. Danet, "Analiza instrumentala", Editura Universitatii din Bucuresti, 2011, chapter 1.
J.R. Lakowicz, "Principles of Fluorescence Spectroscopy", Springer, Berlin, 2006, chapter 2.
M. Todica, R. Stefan, C.V. Pop, I. Papuc, Oana Stan, Loredana Elena Olar, accepted to Studia Universitatis Babes-Bolyai, Chemia, 2014.
M. Navaneethana, K.D. Nishab, S. Ponnusamya, C. Muthamizhchelvana, Materials Chemistry and Physics, 2009, 117, 443.
Yin Ding, Jian Gao, Xiaoyu Yang, Jian He, Zhengyang Zhou, Yong Huc, Advanced Powder Technology, 2014, 25, 244.
M. Moreno, Rebeca Hernández, D. López, European Polymer Journal, 2010, 46, 2099.
G. Mihailescu, L. Olenic, Sorina Garabagiu, G. Blanita, E. F. Cosma, A.S. Biris, Journal of Nanoscience and Nanotechnology, 2010, 10, 2527.
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