Ramón G. Rubio
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View article: Formation and Interfacial Behavior of Chitosan–Alginate Interpolyelectrolyte Complexes: From Bulk Dispersions to Layer-by-Layer Films
Formation and Interfacial Behavior of Chitosan–Alginate Interpolyelectrolyte Complexes: From Bulk Dispersions to Layer-by-Layer Films Open
This study investigates the formation, physicochemical properties, and interfacial behavior of interpolyelectrolyte complexes (IPECs) composed of chitosan (CS) and sodium alginate (ALG) in aqueous media at pH 4.5. Using a combination of tu…
View article: Hydrogen bond-driven interactions between chitosan and biobased surfactants: A study of bulk behavior and surface adsorption
Hydrogen bond-driven interactions between chitosan and biobased surfactants: A study of bulk behavior and surface adsorption Open
View article: Bio-Based Interpolyelectrolyte Complexes for the Stabilization of Pickering-like Emulsions
Bio-Based Interpolyelectrolyte Complexes for the Stabilization of Pickering-like Emulsions Open
This work studies the stabilization of Pickering-like emulsions using dispersions of interpolyelectrolyte complexes (IPECs) formed by chitosan (CS) and sodium alginate (ALG), two polymers from natural resources, as the aqueous phase and so…
View article: Adsorption and Bulk Assembly of Quaternized Hydroxyethylcellulose–Anionic Surfactant Complexes on Negatively Charged Substrates
Adsorption and Bulk Assembly of Quaternized Hydroxyethylcellulose–Anionic Surfactant Complexes on Negatively Charged Substrates Open
This study examines the adsorption and bulk assembly behaviour of quaternized hydroxyethylcellulose ethoxylate (QHECE)–sodium dodecyl sulphate (SDS) complexes on negatively charged substrates. Due to its quaternized structure, QHECE, which…
View article: Diffusion Wave Spectroscopy Microrheological Characterization of Gelling Agarose Solutions
Diffusion Wave Spectroscopy Microrheological Characterization of Gelling Agarose Solutions Open
This work investigated the gelation kinetics and mechanical properties of agarose hydrogels studied at different concentrations (in the range 1–5 g/L) and temperatures. Rheological measurements were performed by diffusing wave spectroscopy…
View article: Roles of Polymer Concentration and Ionic Strength in the Deposition of Chitosan of Fungal Origin onto Negatively Charged Surfaces
Roles of Polymer Concentration and Ionic Strength in the Deposition of Chitosan of Fungal Origin onto Negatively Charged Surfaces Open
This study examines the potential of fungal chitosan derived from Aspergillus niger as a sustainable alternative to traditional petrochemical-based ingredients in cosmetic products. Specifically, the research examines the solubility of fun…
View article: Non-equilibrium states in polyelectrolyte-surfactant systems at fluid interfaces: A critical review
Non-equilibrium states in polyelectrolyte-surfactant systems at fluid interfaces: A critical review Open
Over the last two decades, a significant body of research has been developed trying to understand the association and properties of mixtures formed by oppositely charged polyelectrolytes and surfactants. Particular emphasis has been given …
View article: Ionic Strength Effect in the Equilibrium and Rheological Behavior of an Amphiphilic Triblock Copolymer at the Air/Solution Interface
Ionic Strength Effect in the Equilibrium and Rheological Behavior of an Amphiphilic Triblock Copolymer at the Air/Solution Interface Open
This study investigates the effect of an inert salt (NaCl) on the equilibrium interfacial tension and dilatational modulus of Pluronic F-68 copolymer, a triblock copolymer consisting of two terminal blocks of poly(ethylene oxide) and a les…
View article: Exploring the world of rhamnolipids: A critical review of their production, interfacial properties, and potential application
Exploring the world of rhamnolipids: A critical review of their production, interfacial properties, and potential application Open
View article: Magnetic Colloidal Currents Guided on Self‐Assembled Colloidal Tracks (Adv. Funct. Mater. 52/2023)
Magnetic Colloidal Currents Guided on Self‐Assembled Colloidal Tracks (Adv. Funct. Mater. 52/2023) Open
Magnetic Colloidal Currents In article number 2306541, José Martín-Roca, Fernando Martínez-Pedrero, and co-workers investigate the combination of the use of magnetic colloids, self-assembly, and the generation of travelling potentials to d…
View article: Adsorption of Mixed Dispersions of Silica Nanoparticles and an Amphiphilic Triblock Copolymer at the Water–Vapor Interface
Adsorption of Mixed Dispersions of Silica Nanoparticles and an Amphiphilic Triblock Copolymer at the Water–Vapor Interface Open
This study investigates the surface modification of hydrophilic silica nanoparticles by non-chemical adsorption of an amphiphilic triblock copolymer, Pluronic F-127, and elucidates its influence on the interfacial dispersion properties. Th…
View article: Magnetic Colloidal Currents Guided on Self‐Assembled Colloidal Tracks
Magnetic Colloidal Currents Guided on Self‐Assembled Colloidal Tracks Open
The nondiffusive directional transport of micro‐cargos, such as colloids, cells, or liposomes, is vital for living organisms, for example in the intracellular transport of cytoplasmic organelles along actin filaments or microtubules, and a…
View article: Dilution-Induced Deposition of Concentrated Binary Mixtures of Cationic Polysaccharides and Surfactants
Dilution-Induced Deposition of Concentrated Binary Mixtures of Cationic Polysaccharides and Surfactants Open
This work investigates the effect of dilution on the phase separation process of binary charged polysaccharide–surfactant mixtures formed by two cationic polysaccharides and up to four surfactants of different nature (anionic, zwitterionic…
View article: Layer-by-Layer Nanoassemblies for Vaccination Purposes
Layer-by-Layer Nanoassemblies for Vaccination Purposes Open
In recent years, the availability of effective vaccines has become a public health challenge due to the proliferation of different pandemic outbreaks which are a risk for the world population health. Therefore, the manufacturing of new for…
View article: Anomalous Colloidal Motion under Strong Confinement
Anomalous Colloidal Motion under Strong Confinement Open
Diffusion of biological macromolecules in the cytoplasm is a paradigm of colloidal diffusion in an environment characterized by a strong restriction of the accessible volume. This makes of the understanding of the physical rules governing …
View article: Anomalous Colloidal Motion under Strong Confinement
Anomalous Colloidal Motion under Strong Confinement Open
Diffusion of biological macromolecules in the cytoplasm is a paradigm of colloidal diffusion in an environment characterized by a strong restriction of the accessible volume. This makes of the understanding of the physical rules governing …
View article: Association of oppositely charged polyelectrolyte and surfactant in solution: equilibrium and nonequilibrium features
Association of oppositely charged polyelectrolyte and surfactant in solution: equilibrium and nonequilibrium features Open
The association of polyelectrolytes and surfactants bearing charges of opposite signs has been for long time considered under an equilibrium framework. However, this is far to provide a true description of the physico-chemical rules of the…
View article: Probing the effect of the capping polyelectrolyte on the internal structure of Layer-by-Layer decorated nanoliposomes
Probing the effect of the capping polyelectrolyte on the internal structure of Layer-by-Layer decorated nanoliposomes Open
The sequential deposition of oppositely charged polyelectrolytes on the external leaflet of positively charged liposomes allows modulating the organization of the obtained supramolecular structures, impacting the packing and rigidity of th…
View article: Probing the effect of the capping polyelectrolyte on the internal structure of Layer-by-Layer decorated nanoliposomes
Probing the effect of the capping polyelectrolyte on the internal structure of Layer-by-Layer decorated nanoliposomes Open
Hypothesis The internal organization of polyelectrolyte layers deposited on colloidal templates plays a very important role for the potential applications of these systems as capsules for drug delivery purposes. Experiments The mutual arra…
View article: Anomalous Concentration Dependence of Surface Tension and Concentration-Concentration Correlation Functions of Binary Non-Electrolyte Solutions
Anomalous Concentration Dependence of Surface Tension and Concentration-Concentration Correlation Functions of Binary Non-Electrolyte Solutions Open
The concentration dependence of the surface tension of several binary mixtures of non-electrolytes has been measured at 298.15 K. The mixtures have been chosen since they presented a so-called “W-shape” concentration dependence of the exce…
View article: Anomalous Concentration Dependence of Surface Tension and Concentration-Concentration Correlation Functions of Binary Non-Electrolyte Solutions
Anomalous Concentration Dependence of Surface Tension and Concentration-Concentration Correlation Functions of Binary Non-Electrolyte Solutions Open
The concentration dependence of the surface tension of several binary mixtures of non-electrolytes has been measured at 298.15 K. The mixtures have been chosen since they presented a so-called “W-shape” concentration dependence of the exce…
View article: Physico-chemical challenges on the self-assembly of natural and bio-based ingredients on hair surfaces: towards sustainable haircare formulations
Physico-chemical challenges on the self-assembly of natural and bio-based ingredients on hair surfaces: towards sustainable haircare formulations Open
Polymers and surfactants are used in many technological and industrial applications such as the manufacture of functional materials and coatings, personal care and pharmaceutical products, food science, paints or tertiary oil recover.
View article: Forces Controlling the Assembly of Particles at Fluid Interfaces
Forces Controlling the Assembly of Particles at Fluid Interfaces Open
The interaction of particles with fluid interfaces is ubiquitous in synthetic and natural work, involving two types of interactions: particle–interface interactions (trapping energy) and interparticle interactions. Therefore, it is urgent …
View article: Forces Controlling the Assembly of Particles at Fluid Interfaces
Forces Controlling the Assembly of Particles at Fluid Interfaces Open
The interaction of particles with fluid interfaces is ubiquitous in synthetic and natural work, involving two types of interactions: particle-interface interactions (trapping energy) and interparticle interactions. Therefore, it is urgent …
View article: Dilational Rheology of Fluid/Fluid Interfaces: Foundations and Tools
Dilational Rheology of Fluid/Fluid Interfaces: Foundations and Tools Open
Fluid/fluid interfaces are ubiquitous in science and technology, and hence, the understanding of their properties presents a paramount importance for developing a broad range of soft interface dominated materials, but also for the elucidat…
View article: Dilational Rheology of Fluid/Fluid Interfaces: Foundations and Tools
Dilational Rheology of Fluid/Fluid Interfaces: Foundations and Tools Open
Fluid/fluid interfaces are ubiquitous in science and technology, and hence, the understanding of their properties presents a paramount importance for developing a broad range of soft interface dominated materials, but also for the elucidat…
View article: Chitosan: a promising multi-functional cosmetic ingredient for skin and hair care
Chitosan: a promising multi-functional cosmetic ingredient for skin and hair care Open
The cosmetic industry has an undeniable need to design and develop new ecosustainable products to respond to the demands of consumers and international regulations. This requires substituting some traditional ingredients derived from petro…
View article: Chitosan: A Promising Multifunctional Cosmetic Ingredient for Skin and Hair Care
Chitosan: A Promising Multifunctional Cosmetic Ingredient for Skin and Hair Care Open
The cosmetic industry has an undeniable need to design and develop new ecosustainable products to respond to the demands of consumers and international regulations. This requires substituting some traditional ingredients derived from petro…
View article: Pickering Emulsions: A Novel Tool for Cosmetic Formulators
Pickering Emulsions: A Novel Tool for Cosmetic Formulators Open
The manufacturing of stable emulsion is a very important challenge for the cosmetic industry, which has motivated intense research activity for replacing conventional molecular stabilizers with colloidal particles. These allow minimizing t…
View article: Pickering Emulsions: A Novel Tool for Cosmetic Formulators
Pickering Emulsions: A Novel Tool for Cosmetic Formulators Open
The manufacturing of stable emulsion is a very important challenge for the cosmetic industry, which has motivated intense research activity for replacing conventional molecular stabilizers with colloidal particles. These allow minimizing t…