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J. Funct. Biomater., Volume 2, Issue 1 (March 2011), Pages 1-30

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Research

Open AccessArticle Poly(2-hydroxyethyl methacrylate)-quercetin Conjugate as Biomaterial in Ophthalmology: An “ab initio” Study
J. Funct. Biomater. 2011, 2(1), 1-17; doi:10.3390/jfb2010001
Received: 17 December 2010 / Revised: 13 January 2011 / Accepted: 26 January 2011 / Published: 27 January 2011
Cited by 7 | PDF Full-text (344 KB) | HTML Full-text | XML Full-text
Abstract
A novel polymeric material with antioxidant properties and suitable for ophthalmic application was synthesized by free radical grafting reaction between 2-hydroxyethyl methacrylate and quercetin. The presence of quercetin in the polymeric chain was confirmed by FT-IR and UV-Vis analyses, while an estimation [...] Read more.
A novel polymeric material with antioxidant properties and suitable for ophthalmic application was synthesized by free radical grafting reaction between 2-hydroxyethyl methacrylate and quercetin. The presence of quercetin in the polymeric chain was confirmed by FT-IR and UV-Vis analyses, while an estimation of the amount of quercetin bound per gram of polymer was obtained by the Folin-Ciocalteu assay. The conjugate shows high biocompatibility (HET-CAM assay) and antioxidant and anti-inflammatory properties which were extensively investigated by specific in vitro tests. Full article
Open AccessArticle Effect of Electrical Conductivity Through the Bulk Doping of the Product of Titanocene Dichloride and 2-Nitro-1,4-phenylenediamine
J. Funct. Biomater. 2011, 2(1), 18-30; doi:10.3390/jfb2010018
Received: 18 January 2011 / Revised: 25 February 2011 / Accepted: 3 March 2011 / Published: 17 March 2011
Cited by 6 | PDF Full-text (198 KB) | HTML Full-text | XML Full-text
Abstract
The condensation polymer derived from reaction between titanocene dichloride and 2-nitro-1,4-phenylenediamine was doped by mixing the polymer with different amounts of iodine. This bulk doping of the titanocene polyamine resulted in an increase in bulk conductivity from 10 to over 1,000 fold. [...] Read more.
The condensation polymer derived from reaction between titanocene dichloride and 2-nitro-1,4-phenylenediamine was doped by mixing the polymer with different amounts of iodine. This bulk doping of the titanocene polyamine resulted in an increase in bulk conductivity from 10 to over 1,000 fold. Conductivity increased to a doping level of about 10 to 15% iodine. Conductivity decreased as the sample discs were heated returning to pre-doped levels after the samples were heated for eight minutes. It is believed that this decrease in conductivity is due to the surface evaporation of iodine as the samples were heated. MALDI MS and IR results are consistent with the formation of C-I compounds for doped materials. Full article
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