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Your search keyword '"Jimenez-Ruiz, Aila"' showing total 15 results
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15 results on '"Jimenez-Ruiz, Aila"'

8. Design of highly stabilized nanocomposite inks based on biodegradable polymer-matrix and gold nanoparticles for Inkjet Printing

Author

Begines, B., Alcudia, A., Aguilera-Velazquez, R., Martínez, G., He, Y., Wildman, R., Sayagués, María Jesús, Jimenez-Ruiz, Aila, Prado-Gotor, R., Begines, B., Alcudia, A., Aguilera-Velazquez, R., Martínez, G., He, Y., Wildman, R., Sayagués, María Jesús, Jimenez-Ruiz, Aila, and Prado-Gotor, R.

Abstract

Nowadays there is a worldwide growing interest in the Inkjet Printing technology owing to its potentially high levels of geometrical complexity, personalization and resolution. There is also social concern about usage, disposal and accumulation of plastic materials. In this work, it is shown that sugar-based biodegradable polyurethane polymers exhibit outstanding properties as polymer-matrix for gold nanoparticles composites. These materials could reach exceptional stabilization levels, and demonstrated potential as novel robust inks for Inkjet based Printing. Furthermore, a physical comparison among different polymers is discussed based on stability and printability experiments to search for the best ink candidate. The University of Seville logo was printed by employing those inks, and the presence of gold was confirmed by ToF-SIMS. This approach has the potential to open new routes and applications for fabrication of enhanced biomedical nanometallic-sensors using stabilized AuNP.

Published
2019

15. Encased Gold Nanoparticle Synthesis as a Probe for Oleuropein Self-Assembled Structure Formation.

Author

Jimenez-Ruiz, Aila, Prado-Gotor, Rafael, Fernández-Bolaños, José G., González-Benjumea, Alejandro, and Carnerero, José María

Subjects
*NANOPARTICLE synthesis, *PARTICLES, *COLLOIDS, *GOLD nanoparticles
Abstract

Stable oleuropein-coated gold nanoparticles in aqueous media were synthesized for the first time. Oleuropein (OLE) concentration in the reaction medium was found to greatly influence the outcome and stability of the resulting nanocolloid, with a marked decrease in particle size being found for the more concentrated oleuropein solutions. The protection mechanisms involved in the stabilized nanosystems were analyzed. Oleuropein self-assembled structures were found to be formed at a concentration threshold of [OLE] > 5 × 10−5 M, and observed through the use of CryoSEM imaging. Those structures were responsible for both the increased stability and the decrease in size observed at the more concentrated solutions. [ABSTRACT FROM AUTHOR]

Published
2021
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