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Advances in Colloid and Interface Science

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https://www.readbyqxmd.com/read/29310771/a-review-on-suppression-and-utilization-of-the-coffee-ring-effect
#1
REVIEW
Dileep Mampallil, Huseyin Burak Eral
Evaporation of sessile droplets containing non-volatile solutes dispersed in a volatile solvent leaves behind ring-like solid stains. As the volatile species evaporates, pinning of the contact line gives rise to capillary flows that transport non-volatile solutes to the contact line. This phenomenon, called the coffee-ring effect, compromises the overall performance of industrially relevant manufacturing processes involving evaporation such as printing, biochemical analysis, manufacturing of nano-structured materials through colloidal and macromolecular patterning...
January 2, 2018: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29329667/gel-forming-mucin-interactome-drives-mucus-viscoelasticity
#2
REVIEW
Bastien Demouveaux, Valérie Gouyer, Frédéric Gottrand, Tetsuharu Narita, Jean-Luc Desseyn
Mucus is a hydrogel that constitutes the first innate defense in all mammals. The main organic component of mucus, gel-forming mucins, forms a complex network through both reversible and irreversible interactions that drive mucus gel formation. Significant advances in the understanding of irreversible gel-forming mucins assembly have been made using recombinant protein approaches. However, little is known about the reversible interactions that may finely modulate mucus viscoelasticity, which can be characterized using rheology...
December 28, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29329666/advances-in-self-healing-materials-based-on-vascular-networks-with-mechanical-self-repair-characteristics
#3
REVIEW
Min Wook Lee, Seongpil An, Sam S Yoon, Alexander L Yarin
Here, we review the state-of-the-art in the field of engineered self-healing materials. These materials mimic the functionalities of various natural materials found in the human body (e.g., the healing of skin and bones by the vascular system). The fabrication methods used to produce these "vascular-system-like" engineered self-healing materials, such as electrospinning (including co-electrospinning and emulsion spinning) and solution blowing (including coaxial solution blowing and emulsion blowing) are discussed in detail...
December 24, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29317019/nanodarts-nanoblades-and-nanospikes-mechano-bactericidal-nanostructures-and-where-to-find-them
#4
REVIEW
Nicholas Lin, Paula Berton, Christopher Moraes, Robin D Rogers, Nathalie Tufenkji
Over the past ten years, a next-generation approach to combat bacterial contamination has emerged: one which employs nanostructure geometry to deliver lethal mechanical forces causing bacterial cell death. In this review, we first discuss advances in both colloidal and topographical nanostructures shown to exhibit such "mechano-bactericidal" mechanisms of action. Next, we highlight work from pioneering research groups in this area of antibacterials. Finally, we provide suggestions for unexplored research topics that would benefit the field of mechano-bactericidal nanostructures...
December 24, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29287789/the-surface-chemistry-of-sapphire-c-a-literature-review-and-a-study-on-various-factors-influencing-its-iep
#5
REVIEW
J Lützenkirchen, G V Franks, M Plaschke, R Zimmermann, F Heberling, A Abdelmonem, G K Darbha, D Schild, A Filby, P Eng, J G Catalano, J Rosenqvist, T Preocanin, T Aytug, D Zhang, Y Gan, B Braunschweig
A wide range of isoelectric points (IEPs) has been reported in the literature for sapphire-c (α-alumina), also referred to as basal plane, (001) or (0001), single crystals. Interestingly, the available data suggest that the variation of IEPs is comparable to the range of IEPs encountered for particles, although single crystals should be much better defined in terms of surface structure. One explanation for the range of IEPs might be the obvious danger of contaminating the small surface areas of single crystal samples while exposing them to comparatively large solution reservoirs...
December 13, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29248154/improving-emulsion-formation-stability-and-performance-using-mixed-emulsifiers-a-review
#6
REVIEW
David Julian McClements, Seid Mahdi Jafari
The formation, stability, and performance of oil-in-water emulsions may be improved by using combinations of two or more different emulsifiers, rather than an individual type. This article provides a review of the physicochemical basis for the ability of mixed emulsifiers to enhance emulsion properties. Initially, an overview of the most important physicochemical properties of emulsifiers is given, and then the nature of emulsifier interactions in solution and at interfaces is discussed. The impact of using mixed emulsifiers on the formation and stability of emulsions is then reviewed...
December 9, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29289337/fundamental-interfacial-mechanisms-underlying-electrofreezing
#7
REVIEW
Palash V Acharya, Vaibhav Bahadur
This article reviews the fundamental interfacial mechanisms underlying electrofreezing (promotion of ice nucleation via the application of an electric field). Electrofreezing has been an active research topic for many decades, with applications in food preservation, cryopreservation, cryogenics and ice formation. There is substantial literature detailing experimental and simulations-based studies, which aim to understand the complex mechanisms underlying accelerated ice nucleation in the presence of electric fields and electrical charge...
December 8, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29274774/nanotherapy-for-alzheimer-s-disease-and-vascular-dementia-targeting-senile-endothelium
#8
REVIEW
Joseph S D'Arrigo
Due to the complexity of Alzheimer's disease, multiple cellular types need to be targeted simultaneously in order for a given therapy to demonstrate any major effectiveness. Ultrasound-sensitive coated microbubbles (in a targeted lipid nanoemulsion) are available. Versatile small molecule drug(s) targeting multiple pathways of Alzheimer's disease pathogenesis are known. By incorporating such drug(s) into the targeted "lipid-coated microbubble" [LCM]/"nanoparticle-derived" [ND] (or LCM/ND) nanoemulsion type, one obtains a multitasking combination therapeutic for translational medicine...
December 8, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29174116/hardening-of-particle-oil-water-suspensions-due-to-capillary-bridges-experimental-yield-stress-and-theoretical-interpretation
#9
REVIEW
Krassimir D Danov, Mihail T Georgiev, Peter A Kralchevsky, Gergana M Radulova, Theodor D Gurkov, Simeon D Stoyanov, Eddie G Pelan
Suspensions of colloid particles possess the remarkable property to solidify upon the addition of minimal amount of a second liquid that preferentially wets the particles. The hardening is due to the formation of capillary bridges (pendular rings), which connect the particles. Here, we review works on the mechanical properties of such suspensions and related works on the capillary-bridge force, and present new rheological data for the weakly studied concentration range 30-55 vol% particles. The mechanical strength of the solidified capillary suspensions, characterized by the yield stress Y, is measured at the elastic limit for various volume fractions of the particles and the preferentially wetting liquid...
November 21, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29150015/the-flotation-and-adsorption-of-mixed-collectors-on-oxide-and-silicate-minerals
#10
REVIEW
Longhua Xu, Jia Tian, Houqin Wu, Zhongyuan Lu, Wei Sun, Yuehua Hu
The analysis of flotation and adsorption of mixed collectors on oxide and silicate minerals is of great importance for both industrial applications and theoretical research. Over the past years, significant progress has been achieved in understanding the adsorption of single collectors in micelles as well as at interfaces. By contrast, the self-assembly of mixed collectors at liquid/air and solid/liquid interfaces remains a developing area as a result of the complexity of the mixed systems involved and the limited availability of suitable analytical techniques...
November 11, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29129312/water-adsorption-on-carbon-a-review
#11
REVIEW
Lumeng Liu, Shiliang Johnathan Tan, Toshihide Horikawa, D D Do, D Nicholson, Junjie Liu
Water adsorption on carbonaceous materials has been studied increasingly in the recent years, not only because of its impact on many industrial processes, but also motivated by a desire to understand, at a fundamental level, the distinctive character of directional interactions between water molecules, and between water molecules and other polar groups, such as the functional groups (FGs) at the surfaces of graphene layers. This paper presents an extensive review of recent experimental and theoretical work on water adsorption on various carbonaceous materials, with the aim of gaining a better understanding of how water adsorption in carbonaceous materials relates to the concentration of FGs, their topology (arrangement of the groups) and the structure of the confined space in porous carbons...
November 9, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29174673/surface-self-assembly-of-colloidal-crystals-for-micro-and-nano-patterning
#12
REVIEW
Ryan van Dommelen, Paola Fanzio, Luigi Sasso
The controlled patterning of polymeric surfaces at the micro- and nanoscale offers potential in the technological development of small-scale devices, particularly within the fields of photovoltaics, micro-optics and lab- and organ-on-chip, where the topological arrangement of the surface can influence a system's power generation, optical properties or biological function - such as, in the latter case, biomimicking surfaces or topological control of cellular differentiation. One of the most promising approaches in reducing manufacturing costs and complexity is by exploitation of the self-assembling properties of colloidal particles...
November 8, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29132640/fluorescence-enhancement-for-noble-metal-nanoclusters
#13
REVIEW
Dan Li, Zhenhua Chen, Xifan Mei
Noble metal nanoclusters have attracted great attentions in the area of fluorescence related applications due to their special properties such as low toxicity, excellent photostability and bio-compatibility. However, they still describe disadvantages for low quantum yield compared to quantum dots and organic dyes though the brightness of the fluorescence play an important role for the efficiency of the applications. Attentions have been attracted for exploring strategies to enhance the fluorescence based on the optical fundamentals through various protocols...
November 7, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29129313/physico-chemistry-of-bacterial-transmission-versus-adhesion
#14
REVIEW
Niar Gusnaniar, Henny C van der Mei, Wenwen Qu, Titik Nuryastuti, Johanna M M Hooymans, Jelmer Sjollema, Henk J Busscher
Bacterial adhesion is a main problem in many biomedical, domestic, natural and industrial environments and forms the onset of the formation of a biofilm, in which adhering bacteria grow into a multi-layered film while embedding themselves in a matrix of extracellular polymeric substances. It is usually assumed that bacterial adhesion occurs from air or by convective-diffusion from a liquid suspension, but often bacteria adhere by transmission from a bacterially contaminated donor to a receiver surface. Therewith bacterial transmission is mechanistically different from adhesion, as it involves bacterial detachment from a donor surface followed by adhesion to a receiver one...
November 5, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29153243/the-ph-dependent-surface-charging-and-points-of-zero-charge-vii-update
#15
REVIEW
Marek Kosmulski
The pristine points of zero charge (PZC) and isoelectric points (IEP) of metal oxides and IEP of other materials from the recent literature, and a few older results (overlooked in previous searches) are summarized. This study is an update of the previous compilations by the same author [Surface Charging and Points of Zero Charge, CRC, Boca Raton, 2009; J. Colloid Interface Sci. 337 (2009) 439; 353 (2011) 1; 426 (2014) 209]. The field has been very active, but most PZC and IEP are reported for materials, which are very well-documented already (silica, alumina, titania, iron oxides)...
November 3, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29128042/complex-coacervation-in-charge-complementary-biopolymers-electrostatic-versus-surface-patch-binding
#16
REVIEW
Jyotsana Pathak, Eepsita Priyadarshini, Kamla Rawat, H B Bohidar
In this review, a number of systems are described to demonstrate the effect of polyelectrolyte chain stiffness (persistence length) on the coacervation phenomena, after we briefly review the field. We consider two specific types of complexation/coacervation: in the first type, DNA is used as a fixed substrate binding to flexible polyions such as gelatin A, bovine serum albumin and chitosan (large persistence length polyelectrolyte binding to low persistence length biopolymer), and in the second case, different substrates such as gelatin A, bovine serum albumin, and chitosan were made to bind to a polyion gelatin B (low persistence length substrate binding to comparable persistence length polyion)...
November 3, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29100682/a-review-on-data-and-predictions-of-water-dielectric-spectra-for-calculations-of-van-der-waals-surface-forces
#17
REVIEW
Jianlong Wang, Anh V Nguyen
Van der Waals forces are one of the important components of intermolecular, colloidal and surface forces governing many phenomena and processes. The latest examples include the colloidal interactions between hydrophobic colloids and interfaces in ambient (non-degassed) water in which dissolved gases and nanobubbles are shown to affect the van der Waals attractions significantly. The advanced computation of van der Waals forces in aqueous systems by the Lifshitz theory requires reliable data for water dielectric spectra...
October 31, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29157647/preface
#18
EDITORIAL
Polina Prokopovich, Victor Starov
No abstract text is available yet for this article.
November 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29056232/polyoxyethylene-alkyl-ether-carboxylic-acids-an-overview-of-a-neglected-class-of-surfactants-with-multiresponsive-properties
#19
REVIEW
Leonardo Chiappisi
In this work, an overview on aqueous solutions of polyoxyethylene alkyl ether carboxylic acids is given. Unique properties arise from the combination of the nonionic, temperature-responsive polyoxyethylene block with the weakly ionic, pH-responsive carboxylic acid termination in a single surfactant headgroup. Accordingly, this class of surfactant finds broad application across very different sectors. Despite their large use on an industrial and a technical scale, the literature lacks a systematic and detailed characterization of their physico-chemical properties which is provided herein...
October 13, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/29021097/durable-superhydrophobic-and-superamphiphobic-polymeric-surfaces-and-their-applications-a-review
#20
REVIEW
Kosmas Ellinas, Angeliki Tserepi, Evangelos Gogolides
Wetting control is essential for many applications, such as self-cleaning, anti-icing, anti-fogging, antibacterial action as well as anti-reflection and friction control. While significant effort has been devoted to fabricate superhydrophobic/superamphiphobic surfaces (repellent to water and other low surface tension liquids), very few polymeric superhydrophobic/superamphiphobic surfaces can be considered as durable against various externally imposed stresses (e.g. application of heating, pressure, mechanical forces, chemical, etc...
October 1, 2017: Advances in Colloid and Interface Science
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