Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Marcos D. Fernández Leyes"'
Autor:
Walter Fabian Schroeder, Hernán Ritacco, Marcos D. Fernández Leyes, Ileana Alicia Zucchi, Jessica Gutiérrez González
Publikováno v:
Soft matter. 17(8)
A dispersion of elongated nanostructures with a high aspect ratio in polymer matrices has been reported to provide a material with valuable properties such as mechanical strength, barrier effect and shape memory, among others. In this study, we show
Autor:
Erica Patricia Schulz, Romina B. Pereyra, Pablo C. Schulz, Guillermo A. Durand, Hernán Ritacco, Marcos D. Fernández Leyes, Gustavo F. Silbestri
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 614:126118
The micellization process of a surfactant system formed by the mixture of two cationic surfactants, a conventional one, tetradecyltrimethylammonium bromide (TTAB), and a polymerizable surfactant, methylammonium dodecylethylmethacrylate (PS) bromide,
Autor:
Marcos D. Fernández Leyes, Eugenio Fernández Miconi, M.M. Soledad Lencina, Hernán Ritacco, Claudia Domínguez, Ezequiel Cuenca
Hypothesis Previous efforts to formulate smart foams composed of mixtures of PNIPAAm, a thermoresponsive uncharged polymer, and surfactants have failed because the surfactant displaces the PNIPAAm from the liquid-air interface, removing the thermal r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe6e26b869365a97d9c73db1b192e230
We present an electric birefringence study of aqueous solutions of an intrinsically rigid polyelectrolyte, xanthan, and of mixed solutions with an oppositely charged surfactant, DTAB. The stationary electric birefringence as well as built-up and deca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9f6dadfd56cabe5b71d8dc195139258
https://pubs.acs.org/doi/10.1021/acs.macromol.6b01240
https://pubs.acs.org/doi/10.1021/acs.macromol.6b01240
Autor:
Paula V. Messina, Marcos D. Fernández-Leyes, Juan M. Ruso, Pablo C. Schulz, Natalia Hassan, Valeria Verdinelli, Olga Inés Pieroni
Publikováno v:
Journal of Materials Science. 47:2837-2844
Since the trabecular bone exhibit sponge-like bicontinuity there is a growing interest in the synthesis of spongy-like sieves for the construction of bio-active implantable materials. Here, we propose a one step sol–gel method for the synthesis of
Bile salt structural effect on the thermodynamic properties of a catanionic mixed adsorbed monolayer
Publikováno v:
Colloid and Polymer Science. 289:179-191
The interfacial effects of two bile salts (sodium deoxycholate (NaDC) and sodium dehydrocholate (NaDHC)) in a catanionic mixed adsorbed monolayer have been investigated at 25 °C. The surfactant interfacial composition, the interfacial orientation of
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 329:24-30
Bile salts are biologically important amphiphiles whose micellar behavior is considerably different from that of ordinary surfactants. In this work pre-micellar sodium dehydrocholate (NaDHC)–sodium deoxycholate (NaDC) mixed aqueous solutions compos
Autor:
Noemí A. Andreucetti, Pablo C. Schulz, Paula V. Messina, Carina Vanesa Luengo, Marcos D. Fernández Leyes
The phase behavior for the very diluted DDAB-NaDHC-water system was investigated at 25°C. Fluorescence, conductivity, and surface tension experiments were carried out to determine the cac values. Comparison between experimental and calculated values
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::712055c8a227289e431f77f496fc9e97
https://www.tandfonline.com/doi/abs/10.1080/1539445X.2012.617642
https://www.tandfonline.com/doi/abs/10.1080/1539445X.2012.617642
Autor:
Marcos D. Fernández-Leyes, Pablo C. Schulz, Juan M. Ruso, Félix Sarmiento, Gerardo Prieto, Paula V. Messina
The aim of this article is the evaluation of Ca2+ and Mg 2+ subphases presence effect on mixed monolayers composed by dehydrocholic acid (HDHC) and didodecyldimethylammonium bromide (DDAB). The monolayer stability was analyzed by the evaluation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47af385e0bde2a2dec68bd516c358590
https://link.springer.com/article/10.1007/s00396-009-2170-5
https://link.springer.com/article/10.1007/s00396-009-2170-5
Autor:
Juan M. Ruso, Paula V. Messina, Marcos D. Fernández-Leyes, Félix Sarmiento, Gerardo Prieto, Pablo C. Schulz
Publikováno v:
Colloids and surfaces. B, Biointerfaces. 75(1)
The physicochemical and elastic properties of Langmuir mixed monolayers composed by dehydrocholic acid (HDHC) and didodecyldimethylammonium bromide (DDAB) were evaluated. The experiments were performed with a constant surface pressure penetration Lan