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Colloids and Interfaces, Volume 4, Issue 2

2020 June - 13 articles

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Articles (13)

  • Article
  • Open Access
15 Citations
5,322 Views
15 Pages

CO2 microbubbles have recently been used in enhanced oil recovery for blocking the high permeability zone in heterogeneous reservoirs. Microbubbles are colloidal gas aphrons stabilized by thick shells of polymer and surfactant. The stability of CO2 m...

  • Feature Paper
  • Review
  • Open Access
12 Citations
5,386 Views
13 Pages

Delivery Systems for Hydroxytyrosol Supplementation: State of the Art

  • Antonella De Leonardis,
  • Vincenzo Macciola and
  • Silvio Iacovino

This review aims to highlight the benefits and limitations of the main colloid-based available delivery systems for hydroxytyrosol. Hydroxytyrosol is a phenolic compound with clear biological activities for human wellness. Olive fruits, leaves and ex...

  • Article
  • Open Access
26 Citations
8,920 Views
13 Pages

Synthesis of Molybdenum Blue Dispersions Using Ascorbic Acid as Reducing Agent

  • Natalia Gavrilova,
  • Maria Myachina,
  • Daria Harlamova and
  • Victor Nazarov

Stable molybdenum blue nanoparticles dispersions were synthesized using ammonium heptamolybdate and ascorbic acid. The effect of molar ratios of reducing agent/Mo and acid/Mo on the speed of formation and stability of the disperse system has been dem...

  • Feature Paper
  • Article
  • Open Access
21 Citations
9,269 Views
11 Pages

Antioxidant Effect of Vitamins in Olive Oil Emulsion

  • Francesca Cuomo,
  • Giuseppe Cinelli,
  • Catalina Chirascu,
  • Emanuele Marconi and
  • Francesco Lopez

In this study, water-in-extra virgin olive oil emulsions were enriched with vitamins. Water-in oil emulsions are heterogeneous systems able to solubilize both hydrophilic and hydrophobic compounds. Thus, hydrophilic vitamin C and lipophilic vitamin E...

  • Article
  • Open Access
1 Citations
3,981 Views
10 Pages

Micelle Encapsulation of Ferromagnetic Nanoparticles of Iron Carbide@Iron Oxide in Chitosan as Possible Nanomedicine Agent

  • Perla Yazmin Sauceda-Oloño,
  • Hector Cardenas-Sanchez,
  • Anya Isabel Argüelles-Pesqueira,
  • Cindy Gutierrez-Valenzuela,
  • Mario Enrique Alvarez-Ramos,
  • Armando Lucero-Acuña and
  • Paul Zavala-Rivera

In this work, the synthesis and characterization of core/shell nanoparticles of iron carbide@iron oxide (Fe3C/γ-Fe2O3) encapsulated into micelles of sodium dodecylsulfate and oleic acid and stabilized with chitosan was developed. The materials...

  • Feature Paper
  • Article
  • Open Access
38 Citations
11,853 Views
13 Pages

A Simple Method to Determine Critical Coagulation Concentration from Electrophoretic Mobility

  • Marco Galli,
  • Szilárd Sáringer,
  • István Szilágyi and
  • Gregor Trefalt

Critical coagulation concentration (CCC) is a key parameter of particle dispersions, since it provides the threshold limit of electrolyte concentrations, above which the dispersions are destabilized due to rapid particle aggregation. A computational...

  • Article
  • Open Access
6 Citations
3,153 Views
14 Pages

Interfacial Properties of Tridecyl Dimethyl Phosphine Oxide Adsorbed at the Surface of a Solution Drop in Hexane Saturated Air

  • Valentin B. Fainerman,
  • Eugene V. Aksenenko,
  • Alexander V. Makievski,
  • Libero Liggieri,
  • Nenad Mucic,
  • Aliyar Javadi,
  • Volodymyr I. Kovalchuk and
  • Reinhard Miller

The surface tension of C13DMPO aqueous solution drops in hexane vapor is studied using the drop profile method. The hexane was injected into the measuring cell at three different conditions: before the formation of the solution drop, at a certain mom...

  • Article
  • Open Access
57 Citations
6,791 Views
10 Pages

Chitosan Film with Citrus limonia Essential Oil: Physical and Morphological Properties and Antibacterial Activity

  • Josemar Gonçalves de Oliveira Filho,
  • Isabella Pelosi Borges de Deus,
  • Anna Carolina Fernandes Valadares,
  • Cassia Cristina Fernandes,
  • Elisângela Barbosa Borges Estevam and
  • Mariana Buranelo Egea

The development of active packaging for food preservation is attracting increased attention due to serious environmental problems caused by synthetic and conventional materials. In the present study, the physical, chemical, optical, microstructural,...

  • Article
  • Open Access
2,983 Views
11 Pages

Pickett Equation for the Description of Adsorption on Arbitrary Surfaces

  • Volodymyr V. Kutarov,
  • Eva Schieferstein and
  • Shanath A. A. Jayaweera

The theory of multilayer adsorption of gases, namely the Pickett equation, has been developed to the case of adsorption on arbitrary surfaces in a molecular and a topological approach. We present the prediction of the fractal dimension for the surfac...

  • Feature Paper
  • Article
  • Open Access
8 Citations
3,852 Views
15 Pages

We have investigated the surface tension contributions of the counterions, surfactant headgroups and tails, and water molecules in aqueous alkali dodecyl sulfate (DS) solutions close to the saturated surface concentration by analyzing the lateral pre...

  • Article
  • Open Access
10 Citations
4,214 Views
26 Pages

Bentonite Nanoparticle Stability and the Effect of Fulvic Acids: Experiments and Modelling

  • Holger Seher,
  • Horst Geckeis,
  • Thomas Fanghänel and
  • Thorsten Schäfer

In this study, the critical coagulation concentration (CCC) for FEBEX bentonite colloids is determined by colloid coagulation studies under variation of pH, electrolyte concentration, and fulvic acid (GoHy-573FA) content. For CaCl2 electrolyte soluti...

  • Article
  • Open Access
19 Citations
4,582 Views
16 Pages

Development and Characterization of Electrospun Nanostructures Using Polyethylene Oxide: Potential Means for Incorporation of Bioactive Compounds

  • Sergiana dos P. Ramos,
  • Michele A. Giaconia,
  • Jonas T. Do Marco,
  • Robert da S. Paiva,
  • Veridiana V. De Rosso,
  • Ailton C. Lemes,
  • Mariana B. Egea,
  • Marcelo Assis,
  • Tatiana M. Mazzo and
  • Anna R. C. Braga
  • + 1 author

The development of processes for stabilization of the properties of bioactive compounds has been studied in recent years, and the use of nanotechnology is among the most discussed routes. The present work addressed the assembly of nanostructures usin...

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Colloids Interfaces - ISSN 2504-5377