Publications

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2015
Soares, Paula I. P., Frederik Lochte, Coro Echeverria, Laura CJ Pereira, Joana T. Coutinho, Isabel M. M. Ferreira, Carlos M. M. Novo, and others. "Thermal and magnetic properties of iron oxide colloids: influence of surfactants." Nanotechnology. 26 (2015): 425704. Abstract
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2014
JP, Borges, Canejo JP, Fernandes SN, Brogueira P, and GODINHO MH. "Cellulose‐Based Liquid Crystalline Composite Systems." Nanocellulose Polymer Nanocomposites: Fundamentals and Applications. Ed. Vijay Kumar Thakur. Scrivener Publishing - Wiley. Scrivener Publishing - Wiley, 2014. 215-235. Abstract
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Soares, PI, AM Alves, LC Pereira, JT Coutinho, IM Ferreira, CM Novo, and J. P. Borges. "Effects of surfactants on the magnetic properties of iron oxide colloids." J Colloid Interface Sci.. 419 (2014): 46-51. AbstractWebsite

Iron oxide nanoparticles are having been extensively investigated for several biomedical applications such as hyperthermia and magnetic resonance imaging. However, one of the biggest problems of these nanoparticles is their aggregation.

Taking this into account, in this study the influence of three different surfactants (oleic acid, sodium citrate and Triton X-100) each one with various concentrations in the colloidal solutions stability was analyzed by using a rapid and facile method, the variation in the optical absorbance along time.

The synthesized nanoparticles through chemical precipitation showed an average size of 9 nm and a narrow size distribution. X-ray diffraction pattern and Fourier Transform Infrared analysis confirmed the presence of pure magnetite. SQUID measurements showed superparamagnetic properties with a blocking temperature around 155 K. In addition it was observed that neither sodium citrate nor Triton X-100 influences the magnetic properties of the nanoparticles. On the other hand, oleic acid in a concentration of 64 mM decreases the saturation magnetization from 67 to 45 emu/g. Oleic acid exhibits a good performance as stabilizer of the iron oxide nanoparticles in an aqueous solution for 24 h, for concentrations that lead to the formation of the double layer.

2013
Ana, Baptista, Ferreira Isabel, and Borges João Paulo. "Cellulose-based composite Systems for Biomedical Applications." Biomass-based Biocomposites. Eds. Vijay Kumar Thakur, and Amar Singh Singha. Smithers Rapra, 2013. 47-60. Abstract
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dos Santos, Renato, Ângelo Rocha, Ana Matias, Catarina Duarte, Isabel Sá-Nogueira, Nuno Lourenço, João Paulo Borges, and Pedro Vidinha. "Development of antimicrobial Ion Jelly fibers." RSC Advances. 3 (2013): 24400-24405. Abstract

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Ferreira, I.; Baptista, AC; Leitao, JP; Soares, J.; Fortunato, E.; Martins, R.; Borges, and JP. "Strongly Photosensitive and Fluorescent F8T2 Electrospun Fibers." Macromolecular Materials and Engineering. 298 (2013): 174-180. Abstract

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2012
JDS, Martins, Henriques CMR, Borges JPMR, Prata SGM, Almeida M, and Silva JAMC Biodegradable occlusive membranes for oral and periodontal surgery. Vol. 6. JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, 6., 2012. Abstract
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PI, Soares, Dias SJ, Novo CM, Ferreira IM, Ferreira IM, and Borges JP. "Doxorubicin vs. Ladirubicin: Methods For Improving Osteosarcoma Treatment." Mini reviews in medicinal chemistry. 12 (2012): 1239-1249. Abstract
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AFR, Pimenta, Baptista AC, Carvalho T, Brogueira P, Lourenco NMT, Afonso CAM, Barreiros S, Vidinha P, and Borges JP. "Electrospinning of Ion Jelly fibers." MATERIALS LETTERS. 83 (2012): 161-164. Abstract
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SR, Gomes, Rodrigues GM, Martins GG, Henriques CM, Borges JP, and Silva JC How fibroblasts respond to different biomaterials: comparative adhesion and proliferation studies. Vol. 6. JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, 6., 2012. Abstract
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GSL, Gaspar, Silva SJC, and Borges BJP Production and characterization of chitosan/calcium phosphate composite microspheres for bone tissue engineering therapeutics. Vol. 6. JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, 6., 2012. Abstract
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2010
FRANCO, P. Q., Silva, M. A. G., J. C. e BORGES, and J.P. Produção de fibras de hidroxiapatite por electrofiação. Vol. 22., 2010. Abstract
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