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Removal of humic acid by organo-montmorillonites: Influence of surfactant loading and chain length of alkylammonium cations
(Springer, 2014-05)
In this study, the characterization and adsorption properties of montmorillonite (MMT) and organomontmorillonites with different surfactant/cationic exchange capacity (CEC) ratios (1 and 2) of tetradecyl trimethylammonium ...
Use of microreactors and freeze-drying in the manufacturing process of chitosan coated PCL nanoparticles
(Elsevier Science, 2018-07)
This paper is focused on the synthesis of chitosan-coated polycaprolactone nanoparticles in microreactors and on the freeze-drying of the nanosuspension, to separate the particles from the liquid phase. Nanoparticles were ...
Characterization and Stability of Silver Nanoparticles in Starch Solution Obtained by Femtosecond Laser Ablation and Salt Reduction
(American Chemical Society, 2017-05)
Silver nanoparticles (Ag NPs) colloids obtained by femtosecond laser ablation in soluble starch (st) solution and silver salt reduction methods were characterized using optical extinction spectroscopy, micro-Raman spectroscopy, ...
Stealth nanocarriers based sterosomes using PEG post-insertion process
(Elsevier Science, 2017-06)
Sterosomes (STEs), a new and promising non-phospholipidic liposome platform based on palmitic acid (PA) and cholesterol (Chol) mixtures, need to have polyethylene glycol (PEG) chains grafted to their surface in order to ...
Chitosan-based nanodelivery systems applied to the development of novel triclabendazole formulations
(Public Library of Science, 2018-12)
Triclabendazole is a poorly-water soluble (0.24 μg/mL) compound classified into the Class II/IV of the Biopharmaceutical Classification System. It is the drug of choice to treat fascioliasis, a neglected parasitic disease ...
Aggregation kinetics of humic acids in the presence of calcium ions
(2013)
The aggregation kinetics of a humic acid (HA) sample as a function of Ca2+ concentration at pH 5, 7 and 9 was investigated. UV–VIS spectroscopy was employed to quantify the progress of the aggregation reaction, and ...
Experimental and DFT Studies of Hybrid Silver/Cdots Nanoparticles
(American Chemical Society, 2020-03)
In this work, the combination of experimental and theoretical results was employed to confirm an interaction between Cdots and AgNPs in the silver/Cdots hybrid nanoparticles. The experimental data obtained by UV Vis, IR, ...
Interaction of Phenylalanine with DPPC membranes by FTIR-ATR: influence of Water Populations In Restricted Environments of Lipid Membrane Interphases
(American Chemical Society, 2016-03)
The negative free energy previously reported is 8 explained by the stabilization of a PC-Phe (phosphocholine9 phenylalanine) complex in the presence of water shown by the 10 decrease in the symmetric stretching frequency ...
Catanionic nanocarriers as a potential vehicle for insulin delivery
(Elsevier Science, 2020-04)
Diabetes is a disease that affects millions of people in the World, constituting a global problem. Patients are administered insulin subcutaneous injections, resulting in high costs and frequent infections in the injection ...
Husks of Zea mays as a potential source of biopolymers for food additives and materials? development.
(Elsevier, 2019-02)
Maize husks, an agricultural and industrial residue generated in a large volume,were investigated as a potential source of useful biopolymers. Thus, theirchemical composition was firstly studied, after which two biopolymer ...