Publicaciones 2011-2020

@article{RN403,
title = {Inhibiting Pathogen Surface Adherence by Multilayer Polyelectrolyte Films Functionalized with Glucofuranose Derivatives},
author = { V. Villalobos and A. Leiva and H. Rios and J. Pavez and C.P. Silva and M. Ahmar and Y. Queneau and J.M. Blamey and F.P. Chavez and M. Urz\'{u}a},
url = {/brokenurl#<Go to ISI>://WOS:000442706600064},
doi = {10.1021/acsami.8b03605},
issn = {1944-8244},
year = {2018},
date = {2018-01-01},
journal = {Acs Applied Materials & Interfaces},
volume = {10},
number = {33},
pages = {28147-28158},
abstract = {Inhibiting pathogenic bacterial adherence on surfaces is an ongoing challenge to prevent the development of biofilms. Multilayer polyelectrolyte films are feasible antibacterial materials. Here, we have designed new films made of carbohydrate polyelectrolytes to obtain antibacterial coatings that prevent biofilm formation. The polyelectrolyte films were constructed from poly(maleic anhydride-alt-styrene) functionalized with glucofuranose derivatives and quaternized poly(4-vinylpyridine) N-alkyl. These films prevent Pseudomonas aeruginosa and Salmonella Typhimurium, two important bacterial contaminants in clinical environments, from adhering to surfaces. When the film was composed of more than 10 layers, the bacterial population was greatly reduced, while the bacteria remaining on the film were morphologically damaged, as atomic force microscopy revealed. The antibacterial capacity of the polyelectrolyte films was determined by the combination of thickness, wettability, surface energy, and most importantly, the conformation that polyelectrolytes adopt the function of nature of the carbohydrate group. This polyelectrolyte film constitutes the first green approach to preventing pathogenic bacterial surface adherence and proliferation without killing the bacterial pathogen.},
keywords = {antibacterial bacterial, biofilm biomaterials, carbohydrate challenges coatings, construction, formation, inhibition, mechanisms, p. polyelectrolytes, resistance, s. surfaces, typhimurium},
pubstate = {published},
tppubtype = {article}
}

@article{RN356,
title = {Tailoring Electroactive Surfaces by Non-Template Molecular Assembly. Towards Electrooxidation of L-Cysteine},
author = { M. Santander-Nelli and C.P. Silva and J. Espinoza-Vergara and J.F. Silva and C.F. Olguin and D. Cortes-Arriagada and J.H. Zagal and F. Mendizabal and I. Diez-Perez and J. Pavez},
url = {/brokenurl#<Go to ISI>://WOS:000413239600022},
doi = {10.1016/j.electacta.2017.09.082},
issn = {0013-4686},
year = {2017},
date = {2017-01-01},
journal = {Electrochimica Acta},
volume = {254},
pages = {201-213},
publisher = {2017 Elsevier Ltd.},
abstract = {We have prepared a nanoelectrode ensemble containing vertically aligned single walled carbon nanotubes (SWCNTs) using a non-template molecular self-assembling strategy. We used a bottom-up construction approach to assemble amino functionalized SWCNTs (af-SWCNTs) in a well-defined architecture. These af-SWCNTs were linked and vertically aligned to pre-formed self-assembled monolayers of 4-MBA. A Cobalt(II) tetracarboxyphthalocyanine (Co(COOH)(4)Pc) complex was covalently bonded to external portion of af-SWCNTs to complete the final nanoelectrode ensemble. X-ray photoelectron spectroscopy (XPS) and Atomic Force Microcopy (AFM) confirmed the effectiveness of the assembling steps on the gold surface starting from the Au/MBA SAMs. The system Au/4-MBA/af-SWCNTs shows an interface with large ordered array, which exhibits a high activity for the electrooxidation of L-cysteine (L-cys). Theoretical calculations suggest that the incorporation of the af-SWCNTs increased the activity of the assembly to electronic transfer and it was observed that the electrooxidation reaction is energetically favorable.},
keywords = {arrays, assembly, bottom-up carbon chemistry, construction, dft, electrocatalytic electrode, graphite hardness, intermolecular iron metal metallophthalocyanines, model modified molecular nanoelectrode nanotube, nanotubes, phthalocyanines phthalocyanines, sams, set single substituted tetra-aminophthalocyanine, walled},
pubstate = {published},
tppubtype = {article}
}