Results 1 to 10 of about 69,448 (171)

Drying study of siloxane-PMMA hybrid materials prepared by the sol-gel process

open access: yesEclética Química, 2018
Híbridos siloxano-PMMA apresentando ligações covalentes entre as fases orgânica e inorgânica foram preparados a partir do processo sol-gel. O efeito da fração em massa de fase siloxano no mecanismo de secagem dos géis a 50oC foi estudado através de ...
Ana Paula Sacco   +3 more
doaj   +1 more source

Gold Nucleation Inhibition by Halide Ions: a Basis for a Seed-Mediated Approach [PDF]

open access: yes, 2015
In the present work, we examine the effect of halide ions on gold nucleation, a typical synthetic variable in the wet-chemical production of gold nanostructures.
Coronado, Eduardo A.   +4 more
core   +1 more source

Pseudo-Stem Banana Fibers: Characterization and Chromium Removal

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
In this work, pseudo-stems of the banana tree were collected, characterized and used as adsorbent materials for the removal of the chromium ions from aqueous solution.
Helena Becker   +5 more
doaj   +1 more source

Photoinactivation of Planktonic Cells, Pseudohyphae, and Biofilms of Candida albicans Sensitized by a Free-Base Chlorin and Its Metal Complexes with Zn(II) and Pd(II)

open access: yesAntibiotics, 2023
Invasive candidiasis is an important cause of morbidity and mortality, and its occurrence is increasing due to the growing complexity of patients. In particular, Candida albicans exhibits several virulence factors that facilitate yeast colonization in ...
Paula V. Cordero   +4 more
doaj   +1 more source

Human Frataxin Folds Via an Intermediate State. Role of the C-Terminal Region [PDF]

open access: yes, 2016
The aim of this study is to investigate the folding reaction of human frataxin, whose deficiency causes the neurodegenerative disease Friedreich’s Ataxia (FRDA).
Faraj, Santiago Enrique   +3 more
core   +1 more source

EFFECT OF MAGNESIUM ADDITION ON THE VACANCY-Mg BINDING FREE ENTHALPY IN Al-Cr ALLOYS

open access: yesEclética Química, 2018
The Mg-vacancy binding free enthalpy of Al-Cr solid solution alloys with Mg addition was calculated by electrical resistivity measurements. The obtained value is lower than that obtained for dilute Al-Mg alloys with almost the same Mg content and may be ...
Carlos Roberto Roberto Sobreira BEATRICE   +3 more
doaj   +1 more source

Porphyrin–Schiff Base Conjugates Bearing Basic Amino Groups as Antimicrobial Phototherapeutic Agents

open access: yesMolecules, 2021
New porphyrin–Schiff base conjugates bearing one (6) and two (7) basic amino groups were synthesized by condensation between tetrapyrrolic macrocycle-containing amine functions and 4-(3-(N,N-dimethylamino)propoxy)benzaldehyde. This approach allowed us to
María E. Pérez   +5 more
doaj   +1 more source

Sphingomyelin metabolism is involved in the differentiation of MDCK cells induced by environmental hypertonicity [PDF]

open access: yes, 2015
Sphingolipids (SLs) are relevant lipid components of eukaryotic cells. Besides regulating various cellular processes, SLs provide the structural framework for plasma membrane organization.
Favale, Nicolas Octavio   +4 more
core   +1 more source

Estudo das Propriedades do Pseudofruto do Cajueiro na Adsorção de Cr (VI)

open access: yesOrbital: The Electronic Journal of Chemistry, 2013
In this study, the Cr (VI) adsorption properties by cashew (Anacardium occidentale L.) were studied in a batch system. The effects of pH (5.0 and 7.0), drying process – S (oven-dried and lyophilized), particle size – P (0.10 – 0.25 and 0.25 – 0.84 mm ...
Thiago C. Medeiros   +3 more
doaj   +1 more source

Communication: UV photoionization of cytosine catalyzed by Ag+ [PDF]

open access: yes, 2015
The photo-induced damages of DNA in interaction with metal cations, which are found in various environments, still remain to be characterized. In this paper, we show how the complexation of a DNA base (cytosine (Cyt)) with a metal cation (Ag+) changes ...
Bertran J.   +8 more
core   +3 more sources

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