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Advances in Colloid and Interface Science

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https://www.readbyqxmd.com/read/28535903/foams-from-nature-to-industry
#1
REVIEW
Christopher Hill, Julian Eastoe
This article discusses different natural and man-made foams, with particular emphasis on the different modes of formation and stability. Natural foams, such as those produced on the sea or by numerous creatures for nests, are generally stabilised by dissolved organic carbon (DOC) molecules or proteins. In addition to this, foam nests are stabilised by multifunctional mixtures of surfactants and proteins called ranaspumins, which act together to give the required physical and biochemical stability. With regards to industrial foams, the article focuses on how various features of foams are exploited for different industrial applications...
May 12, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28528626/colloid-particle-formulations-for-antimicrobial-applications
#2
REVIEW
Ahmed F Halbus, Tommy S Horozov, Vesselin N Paunov
Colloidal particles are being extensively studied in various antimicrobial applications due to their small size to volume ratio and ability to exhibit a wide spectrum of antibacterial, antifungal, antialgal and antiviral action. The present review focuses on various nanoparticles (NPs) of inorganic, organic and hybrid materials, and discusses some of the methods for their preparation as well as mechanisms of their antimicrobial action. We consider the antimicrobial applications of metal oxide nanoparticles (ZnO, MgO, CuO, Cu2O, Al2O3, TiO2, CeO2 and Y2O3), metal nanoparticles (NPs), such as copper, silver and gold, metal hydroxide NPs such as Mg(OH)2 as well as hybrid NPs made from biodegradable materials, such as chitosan, lignin and dextran, loaded with other antimicrobial agents...
May 12, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28515013/atomic-force-microscopy-from-red-blood-cells-to-immunohaematology
#3
REVIEW
Natasha Yeow, Rico F Tabor, Gil Garnier
Atomic force microscopy (AFM) offers complementary imaging modes that can provide morphological and structural details of red blood cells (RBCs), and characterize interactions between specific biomolecules and RBC surface antigen. This review describes the applications of AFM in determining RBC health by the observation of cell morphology, elasticity and surface roughness. Measurement of interaction forces between plasma proteins and antibodies against RBC surface antigen using the AFM also brought new information to the immunohaematology field...
May 11, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28532662/molecular-design-of-flotation-collectors-a-recent-progress
#4
REVIEW
Guangyi Liu, Xianglin Yang, Hong Zhong
The nature of froth flotation is to selectively hydrophobize valuable minerals by collector adsorption so that the hydrophobized mineral particles can attach air bubbles. In recent years, the increasing commercial production of refractory complex ores has been urgent to develop special collectors for enhancing flotation separation efficiency of valuable minerals from these ores. Molecular design methods offer an effective way for understanding the structure-property relationship of flotation collectors and developing new ones...
May 10, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28527520/recent-advances-in-smart-biotechnology-hydrogels-and-nanocarriers-for-tailored-bioactive-molecules-depot
#5
REVIEW
Gesmi Milcovich, Stefania Lettieri, Filipe E Antunes, Bruno Medronho, Ana C Fonseca, Jorge F J Coelho, Paolo Marizza, Francesca Perrone, Rossella Farra, Barbara Dapas, Gabriele Grassi, Mario Grassi, Silvia Giordani
Over the past ten years, the global biopharmaceutical market has remarkably grown, with ten over the top twenty worldwide high performance medical treatment sales being biologics. Thus, biotech R&D (research and development) sector is becoming a key leading branch, with expanding revenues. Biotechnology offers considerable advantages compared to traditional therapeutic approaches, such as reducing side effects, specific treatments, higher patient compliance and therefore more effective treatments leading to lower healthcare costs...
May 9, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28511788/porous-structure-of-ion-exchange-membranes-investigated-by-various-techniques
#6
REVIEW
N Kononenko, V Nikonenko, D Grande, C Larchet, L Dammak, M Fomenko, Yu Volfkovich
A comparative review of various techniques is provided: mercury intrusion porosimetry, nitrogen sorption porosimetry, differential scanning calorimetry (DSC)-based thermoporosimetry, and standard contact porosimetry (SCP), which allows determining pore volume distribution versus pore radius/water binding energy in ion-exchange membranes (IEMs). IEMs in the swollen state have a labile structure involving micro-, meso- and macropores, whose size is a function of the external water vapor pressure. For such materials, the most appropriate methods for quantifying their porosity are DSC and SCP...
May 9, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28532663/recent-developments-in-drug-eluting-devices-with-tailored-interfacial-properties
#7
REVIEW
Eva Sanchez-Rexach, Emilio Meaurio, Jose-Ramon Sarasua
Drug eluting devices have greatly evolved during past years to become fundamental products of great marketing importance in the biomedical field. There is currently a large diversity of highly specialized devices for specific applications, making the development of these devices an exciting field of research. The replacement of the former bare metal devices by devices loaded with drugs allowed the sustained and controlled release of drugs, to achieve the desired local therapeutic concentration of drug. The newer devices have been "engineered" with surfaces containing micro- and nanoscale features in a well-controlled manner, that have shown to significantly affect cellular and subcellular function of various biological systems...
May 4, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28499605/interfacial-characteristics-of-binary-polymer-blend-films-spread-at-the-air-water-interface
#8
REVIEW
Masami Kawaguchi
The interfacial characteristics of binary polymer blend films spread at the air-water interface are reviewed, focusing on their surface pressures, interfacial structures, and dilational moduli as a function of the miscibility. Miscible polymer blend films show thermodynamic, structural, and dynamic properties which are a combination of those from both components in the polymer blend present at the air-water interface. No preferential adsorption is observed and the behavior does not depend on the surface concentration regime...
May 4, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28499601/multicomponent-nanocrystals-with-anti-stokes-luminescence-as-contrast-agents-for-modern-imaging-techniques
#9
REVIEW
A N Generalova, B N Chichkov, E V Khaydukov
Lanthanide-doped upconversion nanoparticles (UCNPs) have recently attracted great attention in theranostics due to their exceptional optical and physicochemical properties, which enable the design of a novel UCNP-based nanoplatform for luminescent imaging, temperature mapping, sensing, and therapy. In addition, UCNPs are considered to be ideal building blocks for development of multimodal probes for cells and whole body imaging, exploiting simple variation of host matrix, dopant ions, and surface chemistry...
May 4, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28499604/iron-oxide-nanoparticles-in-vivo-in-vitro-biomedical-applications-and-in-silico-studies
#10
REVIEW
Miroslava Nedyalkova, Borjana Donkova, Julia Romanova, George Tzvetkov, Sergio Madurga, Vasil Simeonov
The review presents a broad overview of the biomedical applications of surface functionalized iron oxide nanoparticles (IONPs) as magnetic resonance imaging (MRI) agents for sensitive and precise diagnosis tool and synergistic combination with other imaging modalities. Then, the recent progress in therapeutic applications, such as hyperthermia is discussed and the available toxicity data of magnetic nanoparticles concerning in vitro and in vivo biomedical applications are addressed. This review also presents the available computer models using molecular dynamics (MD), Monte Carlo (MC) and density functional theory (DFT), as a basis for a complete understanding of the behaviour and morphology of functionalized IONPs, for improving NPs surface design and expanding the potential applications in nanomedicine...
May 3, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28499603/bio-templated-silica-composites-for-next-generation-biomedical-applications
#11
REVIEW
Karunya Albert, Xin-Chun Huang, Hsin-Yun Hsu
Silica-based materials have extensive biomedical applications owing to their unique physical, chemical, and biological properties. Recently, increasing studies have examined the mechanisms involved in biosilicification to develop novel, fine-tunable, eco-friendly materials and/or technologies. In this review, we focus on recent developments in bio-templated silica synthesis and relevant applications in drug delivery systems, tissue engineering, and biosensing.
April 29, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28499600/lipid-vesicles-in-pulsed-electric-fields-fundamental-principles-of-the-membrane-response-and-its-biomedical-applications
#12
REVIEW
Dayinta L Perrier, Lea Rems, Pouyan E Boukany
The present review focuses on the effects of pulsed electric fields on lipid vesicles ranging from giant unilamellar vesicles (GUVs) to small unilamellar vesicles (SUVs), from both fundamental and applicative perspectives. Lipid vesicles are the most popular model membrane systems for studying biophysical and biological processes in living cells. Furthermore, as vesicles are made from biocompatible and biodegradable materials, they provide a strategy to create safe and functionalized drug delivery systems in health-care applications...
April 28, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28477864/probing-the-threshold-of-membrane-damage-and-cytotoxicity-effects-induced-by-silica-nanoparticles-in-escherichia-coli-bacteria
#13
REVIEW
Marion Mathelié-Guinlet, Laure Béven, Fabien Moroté, Daniel Moynet, Christine Grauby-Heywang, Ibtissem Gammoudi, Marie-Hélène Delville, Touria Cohen-Bouhacina
The engineering of nanomaterials, because of their specific properties, is increasingly being developed for commercial purposes over the past decades, to enhance diagnosis, cosmetics properties as well as sensing efficiency. However, the understanding of their fate and thus their interactions at the cellular level with bio-organisms remains elusive. Here, we investigate the size- and charge-dependence of the damages induced by silica nanoparticles (SiO2-NPs) on Gram-negative Escherichia coli bacteria. We show and quantify the existence of a NPs size threshold discriminating toxic and inert SiO2-NPs with a critical particle diameter (Φc) in the range 50nm-80nm...
April 28, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28477865/nano-carrier-based-drug-delivery-systems-for-sustained-antimicrobial-agent-release-from-orthopaedic-cementous-material
#14
REVIEW
Yazan Al Thaher, Stefano Perni, Polina Prokopovich
Total joint replacement (TJR), such as hip and knee replacement, is a popular procedure worldwide. Prosthetic joint infections (PJI) after this procedure have been widely reported, where treatment of such infections is complex with high cost and prolonged hospital stay. In cemented arthroplasties, the use of antibiotic loaded bone cement (ALBC) is a standard practice for the prophylaxis and treatment of PJI. Recently, the development of bacterial resistance by pathogenic microorganisms against most commonly used antibiotics increased the interest in alternative approaches for antimicrobial delivery systems such as nanotechnology...
April 27, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28473053/applications-of-artificial-neural-networks-for-adsorption-removal-of-dyes-from-aqueous-solution-a-review
#15
REVIEW
Abdol Mohammad Ghaedi, Azam Vafaei
Artificial neural networks (ANNs) have been widely applied for the prediction of dye adsorption during the last decade. In this paper, the applications of ANN methods, namely multilayer feedforward neural networks (MLFNN), support vector machine (SVM), and adaptive neuro fuzzy inference system (ANFIS) for adsorption of dyes are reviewed. The reported researches on adsorption of dyes are classified into four major categories, such as (i) MLFNN, (ii) ANFIS, (iii) SVM and (iv) hybrid with genetic algorithm (GA) and particle swarm optimization (PSO)...
April 26, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28477867/layered-double-hydroxides-as-the-next-generation-inorganic-anion-exchangers-synthetic-methods-versus-applicability
#16
REVIEW
Natalia Chubar, Robert Gilmour, Vasyl Gerda, Matej Mičušík, Maria Omastova, Katja Heister, Pascal Man, Jacques Fraissard, Vladimir Zaitsev
This work is the first report that critically reviews the properties of layered double hydroxides (LDHs) on the level of speciation in the context of water treatment application and dynamic adsorption conditions, as well as the first report to associate these properties with the synthetic methods used for LDH preparation. Increasingly stronger maximum allowable concentrations (MAC) of various contaminants in drinking water and liquid foodstuffs require regular upgrades of purification technologies, which might also be useful in the extraction of valuable substances for reuse in accordance with modern sustainability strategies...
April 25, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28477866/colloidal-2d-nanosheets-of-mos2-and-other-transition-metal-dichalcogenides-through-liquid-phase-exfoliation
#17
REVIEW
Ekaterina D Grayfer, Mariia N Kozlova, Vladimir E Fedorov
This review focuses on the exfoliation of transition metal dichalcogenides MQ2 (TMD, M=Mo, W, etc., Q=S, Se, Te) in liquid media, leading to the formation of 2D nanosheets dispersed in colloids. Nowadays, colloidal dispersions of MoS2, MoSe2, WS2 and other related materials are considered for a wide range of applications, including electronic and optoelectronic devices, energy storage and conversion, sensors for gases, catalysts and catalyst supports, biomedicine, etc. We address various methods developed so far for transferring these materials from bulk to nanoscale thickness, and discuss their stabilization and factors influencing it...
April 25, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28457499/milk-fat-globules-and-associated-membranes-colloidal-properties-and-processing-effects
#18
REVIEW
Annamari Jukkola, Orlando J Rojas
The composition and physical-chemical properties of the milk fat globule membrane (MFGM) is a subject that has gained increased interest in the field of food colloids, mainly because the nutritional and technological value of the MFGM. In fact, related changes in integrity and structure during milk processing pose a huge challenge as far as efforts directed to isolate the components of the fat globule membrane. MFGM characteristics and potential utilization are subjects of dissension. Thus, the effects of processing and the colloidal interactions that exist with other milk constituents need to be better understood in order to exploit milk fat and MFGM, their functionality as colloids as well as those of their components...
April 21, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28473052/silica-based-systems-for-oral-delivery-of-drugs-macromolecules-and-cells
#19
REVIEW
Roudayna Diab, Nadia Canilho, Ileana A Pavel, Fernanda B Haffner, Maxime Girardon, Andreea Pasc
According to the US Food and Drug Administration and the European Food Safety Authority, amorphous forms of silica and silicates are generally recognized to be safe as oral delivery ingredients in amounts up to 1500mg per day. Silica is used in the formulation of solid dosage forms, e.g. tablets, as glidant or lubricant. The synthesis of silica-based materials depends on the payload nature, drug, macromolecule or cell, and on the target release (active or passive). In the literature, most of the examples deal with the encapsulation of drugs in mesoporous silica nanoparticles...
April 20, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28457501/synthesis-of-hydroxyapatite-for-biomedical-applications
#20
REVIEW
Aleksandra Szcześ, Lucyna Hołysz, Emil Chibowski
The current need for long lasting implants and bone substitutes characterized by biocompatibility, bioactivity and mechanical properties, without the immune rejection is a great challenge for scientists. These bone substitute structures should be prepared for individual patients with all details controlled on the micrometer level. Similarly, nontoxic, biocompatible targeted drug delivery systems which allow controlling the rate and time period of the drug delivery and simultaneously eliminating toxic and side effects on the healthy tissues, are of great interest...
April 20, 2017: Advances in Colloid and Interface Science
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