Colloids and Surfaces

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Colloids and Surfaces A

Colloids and Surfaces A: Physicochemical and Engineering Aspects focused on aspects related to applications of colloids and interfacial phenomena. [1] The journal is published biweekly jointly edited by M. Adler, F. Grieser, J.B. Li and D. Prieve [2]

Colloids and Surfaces B

Colloids and Surfaces B: Biointerfaces focuses on the biological aspects. [3] It is published monthly jointly edited by J.L. Brash, H.J. Busscher, H. Chen and D. Danino. [4]

Related Research Articles

Boris Vladimirovich Derjaguin was a Soviet and Russian chemist. As a member of the Russian Academy of Sciences, he laid the foundation of the modern science of colloids and surfaces. An epoch in the development of the physical chemistry of colloids and surfaces is associated with his name.

<span class="mw-page-title-main">Zeta potential</span> Electrokinetic potential in colloidal dispersions

Zeta potential is the electrical potential at the slipping plane. This plane is the interface which separates mobile fluid from fluid that remains attached to the surface.

The Vroman effect, named after Leo Vroman, describes the process of competitive protein adsorption to a surface by blood serum proteins. The highest mobility proteins generally arrive first and are later replaced by less mobile proteins that have a higher affinity for the surface. The order of protein adsorption also depends on the molecular weight of the species adsorbing. Typically, low molecular weight proteins are displaced by high molecular weight protein while the opposite, high molecular weight being displaced by low molecular weight, does not occur. A typical example of this occurs when fibrinogen displaces earlier adsorbed proteins on a biopolymer surface and is later replaced by high molecular weight kininogen. The process is delayed in narrow spaces and on hydrophobic surfaces, fibrinogen is usually not displaced. Under stagnant conditions initial protein deposition takes place in the sequence: albumin; globulin; fibrinogen; fibronectin; factor XII, and HMWK.

Silanization is a process where a hydroxylated surface is modified by the addition of organofunctional alkoxysilanes, which replace hydroxyl groups on the surface, leading to the formation of a thin film on the surface of the material. This process is often used to modify the surface properties of glass, silicon, alumina, quartz, and metal oxide substrates, which all have an abundance of hydroxyl groups. Commonly used to create a hydrophobic surface on a substrate, the specific type of silane used can more generally lead to varied properties of surface energy, hydrophobicity, and hydrophilicity, which can be selected for depending on the application.

Electroacoustic phenomena arise when ultrasound propagates through a fluid containing ions. The associated particle motion generates electric signals because ions have electric charge. This coupling between ultrasound and electric field is called electroacoustic phenomena. The fluid might be a simple Newtonian liquid, or complex heterogeneous dispersion, emulsion or even a porous body. There are several different electroacoustic effects depending on the nature of the fluid.

Electric sonic amplitude or electroacoustic sonic amplitude is an electroacoustic phenomenon that is the reverse to colloid vibration current. It occurs in colloids, emulsions and other heterogeneous fluids under the influence of an oscillating electric field. This field moves particles relative to the liquid, which generates ultrasound.

Sedimentation potential occurs when dispersed particles move under the influence of either gravity or centrifugation in a medium. This motion disrupts the equilibrium symmetry of the particle's double layer. While the particle moves, the ions in the electric double layer lag behind due to the liquid flow. This causes a slight displacement between the surface charge and the electric charge of the diffuse layer. As a result, the moving particle creates a dipole moment. The sum of all of the dipoles generates an electric field which is called sedimentation potential. It can be measured with an open electrical circuit, which is also called sedimentation current.

In molecular physics, the Hamaker constant is a physical constant that can be defined for a van der Waals (vdW) body–body interaction:

Electrochemical engineering is the branch of chemical engineering dealing with the technological applications of electrochemical phenomena, such as electrosynthesis of chemicals, electrowinning and refining of metals, flow batteries and fuel cells, surface modification by electrodeposition, electrochemical separations and corrosion.

<span class="mw-page-title-main">Titanium biocompatibility</span>

Titanium was first introduced into surgeries in the 1950s after having been used in dentistry for a decade prior. It is now the metal of choice for prosthetics, internal fixation, inner body devices, and instrumentation. Titanium is used from head to toe in biomedical implants. One can find titanium in neurosurgery, bone conduction hearing aids, false eye implants, spinal fusion cages, pacemakers, toe implants, and shoulder/elbow/hip/knee replacements along with many more. The main reason why titanium is often used in the body is due to titanium's biocompatibility and, with surface modifications, bioactive surface. The surface characteristics that affect biocompatibility are surface texture, steric hindrance, binding sites, and hydrophobicity (wetting). These characteristics are optimized to create an ideal cellular response. Some medical implants, as well as parts of surgical instruments are coated with titanium nitride (TiN).

<i>Journal of Colloid and Interface Science</i> Academic journal

The Journal of Colloid and Interface Science is a peer-reviewed scientific journal published by Elsevier. It covers research related to colloid and interface science with a particular focus on colloidal materials and nanomaterials; surfactants and soft matter; adsorption, catalysis and electrochemistry; interfacial processes, capillarity and wetting; biomaterials and nanomedicine; and novel phenomena and techniques. The editor-in-chief is Martin Malmsten. The journal was established in 1946 as Journal of Colloid Science. It obtained its current name in 1966.

<span class="mw-page-title-main">Superhydrophobic coating</span> Water-repellant coating

A superhydrophobic coating is a thin surface layer that repels water. It is made from superhydrophobic (ultrahydrophobicity) materials. Droplets hitting this kind of coating can fully rebound. Generally speaking, superhydrophobic coatings are made from composite materials where one component provides the roughness and the other provides low surface energy.

<span class="mw-page-title-main">Edward Bormashenko</span>

Edward Bormashenko is a professor of Materials Science and the Head of the Laboratory of Interface Science of the Ariel University in Israel. He was born in 1962 in Kharkiv, Ukraine and lives in Israel since 1997. He studied in the V. N. Karazin Kharkiv National University. His research is in the polymer science and surface science. He accomplished his PhD in Moscow Institute of Plastics in 1990.

Ponisseril Somasundaran is an American mineral engineer of Indian origin and a LaVon Duddleson Krumb Professor of Mineral Engineering at Columbia University, New York.

Magnesium oil (also referred to as transdermal magnesium, magnesium hexahydrate) is a compound of magnesium chloride dissolved in six molecules of water, with magnesium as the alkaline earth metal and chlorine as the nonmetal. In reality, it is not a "true" oil, as it is not composed of one or more hydrocarbons. Magnesium oil is actually magnesium chloride hexahydrate MgCl2·6H2O. Magnesium oil can be applied to the skin as an alternative to taking a magnesium supplement by mouth, and it is claimed to have health benefits, such as for the treatment of magnesium deficiency, to relieve muscle pain and ache (especially headaches), and to enhance relaxation. However, such use has been described as "scientifically unsupported" due to lack of any convincing data that magnesium is absorbed in significant amounts through the skin. It can also be found as a spray for the mentioned purposes. Magnesium is used in over 600 cellular reactions within the human body, including the immune system. Magnesium oil, with a chemical formula of MgCl2·6H2O has a formula mass of 203.30 g/mol.

Zhang Xingdong is a Chinese biomedical scientist and professor at Sichuan University. He is the President of the International Union of Societies for Biomaterials Science and Engineering (IUSBSE), and Honorary President of the Chinese Society for Biomaterials (CSBM).

Alexis Tarassov Bell is an American chemical engineer. He is currently the Dow professor of Sustainable Chemistry in the Department of Chemical and Biomolecular Engineering in UC Berkeley's College of Chemistry. He is also the Faculty Senior Scientist at Lawrence Berkeley National Laboratory. He is known for his work with heterogenous catalysts and characterizing the mechanisms of these reactions on a quantum level.

Vitaliy Khutoryanskiy FRSC is a British and Kazakhstani scientist, Professor of Formulation Science and Royal Society Industry Fellow at the University of Reading. His research focuses on polymers, biomaterials, nanomaterials, drug delivery and pharmaceutical sciences. Khutoryanskiy has published over 200 original research articles, book chapters and reviews; his publications have attracted > 9000 citations and his current h-index is 47:. He received several prestigious awards in recognition for his research in polymers, colloids and drug delivery and also for contributions to research peer-review and mentoring of early career researchers. He holds several honorary professorship titles from different universities.

<span class="mw-page-title-main">Emmie Lucassen-Reynders</span> Dutch chemist (1935–2023)

Emmie Helena Lucassen-Reynders was a Dutch scientist specialising in colloid chemistry and theoretical physics. She worked in both academia and in industry.

<span class="mw-page-title-main">Alexander Kabanov (chemist)</span>

Alexander Viktorovich Kabanov, is a Russian and American chemist, an educator, an entrepreneur, and a researcher in the fields of drug delivery and nanomedicine.

References

  1. "Publisher's Note". Colloids Surf. A. Elsevier. 70 (1): v. 1993. doi:10.1016/0927-7757(93)80490-6.
  2. Colloids and Surfaces A: Physicochemical and Engineering Aspects Editorial Board. Elsevier. Retrieved 7 July 2013.
  3. j. Lyklema (1993). "The birth and berth of a new journal". Colloids and Surfaces B: Biointerfaces. 1: v. doi:10.1016/0927-7765(93)80010-V.
  4. "Colloids and Surfaces B: Biointerfaces Editorial Board". Elsevier. Retrieved 8 July 2013.