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*  Poly(ethyl cyanoacrylate) colloidal particles tagged with Rhodamine 6G: preparation and physicochemical characterization
|p|This paper describes the preparation and characterization of poly(ethyl cyanoacrylate) colloidal particles loaded with the organic fluorophore Rhodamine 6G. We studied the physicochemical properties of the colloidal particles: morphology, size-distribution, ζ-potential, fluorescent properties and photobleaching upon UV-light illumination. The properties of the obtained colloidal particles, as well as the dye loading efficiency, were found to depend on the concentrations of ethyl cyanoacrylate monomer and Rhodamine 6G in the polymerization medium. The fluorophore release from the colloidal particles in aqueous buffer is also studied. |inline-formula||alternatives| [...] |/alternatives||/inline-formula||/p|
https://www.infona.pl/resource/bwmeta1.element.-psjd-doi-10_2478_s11532-011-0090-y
*  Colloidal crystal - Wikipedia
A colloidal crystal is an ordered array of colloid particles, analogous to a standard crystal whose repeating subunits are atoms or molecules. A natural example of this phenomenon can be found in the gem opal, where spheres of silica assume a close-packed locally periodic structure under moderate compression. Bulk properties of a colloidal crystal depend on composition, particle size, packing arrangement, and degree of regularity. Applications include photonics, materials processing, and the study of self-assembly and phase transitions. IUPAC definition Assembly of colloid particles with a periodic structure that conforms to symmetries familiar from molecular or atomic crystals. Note: Colloidal crystals may be formed in a liquid medium or during drying of particle suspension. A colloidal crystal is a highly ordered array of particles which can be formed over a long range (to about a centimeter). Arrays such as this appear to be analogous to their atomic or molecular counterparts with proper ...
https://en.wikipedia.org/wiki/Colloidal_crystal
*  Metal colloidal particles, metal colloid and use of metal colloid - Patent # 8709296 - PatentGenius
With respect to the metal colloid of the present invention, metal colloidal particles capable of forming a metal colloid by dispersing in either or both of an aqueous dispersion medium and a nonaqueous dispersion medium in a predetermined proportion while mixing, comprise metal particles and a protective agent coordination-modified on the surface of the particles, the protective agent having a carbon skeleton containing either or both of sulfur and oxygen in the molecule, and having a structure of being coordination-modified on the surface of the metal particles using an atom or an atomic group of either or both of sulfur and oxygen as an anchor, wherein the protective agent has one, or two or more functional groups selected from the group consisting of alkoxysilyl group, silanol group and hydroxyalkyl group in a molecular structure.
http://www.patentgenius.com/patent/8709296.html
*  The effect of colloid formulation on colloid osmotic pressure in horses with naturally occurring gastrointestinal disease | BMC...
The results of the present study indicate that both hydroxyethyl starch formulations evaluated increase COP when used in the treatment of horses with low colloid oncotic pressure due to hypoproteinemia. Colloid supplementation improved COP approximately 20%, regardless of the formulation used. However, colloid treatment did not result in COP values within the equine normal range of 18-22 mmHg [7]. Venous pH was not affected by colloid administration. Therefore, it is presumed that type of colloid carrier fluid, normal saline versus lactate ringers solution, did not impact acid-base parameters in this setting.. Jones, P.A. and colleagues encountered similar results in measured COP after administration of 8-10ml/kg of 6% high molecular weight hydroxyethyl starch in 5 hypoproteinemic adult horses and 6 horses ≤1 year of age [8]. In that study, there was a significant increase in measured COP, a mean of 1.5 mmHg post-infusion (13%), that persisted for 24 hours and returned to baseline values at 48 ...
https://0-bmcvetres-biomedcentral-com.brum.beds.ac.uk/articles/10.1186/1746-6148-10-S1-S8
*  Choroidal Thickness Evaluation Before and After Hemodialysis in Patients With and Without Diabetes | IOVS | ARVO Journals
The current study had some limitations. First, we have not assessed which component, the vasculature or the interstitium, undergoes more changes in the choroid. A previous study reported that the ratio of the vertical and horizontal diameters of the choroidal veins was correlated significantly with the choroidal thickness.35 Sonoda et al.36 recently showed that luminal and interstitial areas of the choroid could be separately analyzed with the binarization of choroidal images recorded by the SD-OCT. Our OCT device did not have enough axial resolution to precisely evaluate the changes in the luminal and interstitial areas, particularly in the deeper choroid. Further study using devices that have a higher penetration (such as swept-source OCT) are needed to assess this limitation. Second, we did not measure the plasma colloid osmotic pressure before and after hemodialysis. However, the hemodialysis treatment apparently increased the plasma colloid osmotic pressure, which contributed to the fluid ...
http://iovs.arvojournals.org/article.aspx?articleid=2461803
*  Colloidal particles composed of amphiphilic molecules binding gadolinium complexes and peptides as tumor-specific contrast...
article{6110940a-2755-4c1d-bd53-b19e12c96cdf, abstract = {This article highlights our recent achievements on the development and upgrade of new potential tumor-specific contrast agents for magnetic resonance imaging (MRI) based on gadolinium complexes and peptides, assemblied in amphiphilic supramolecular aggregates. The physico-chemical characterization of these aggregates provides novel and interesting opportunities to investigate surfactant aggregation properties, that may be exploited in several applications such as in medical diagnostics or in drug and gene delivery.}, author = {Vaccaro, Mauro and Mangiapia, Gaetano and Radulescu, Aurel and Schillén, Karin and D'Errico, Gerardino and Morelli, Giancarlo and Paduano, Luigi}, issn = {1744-6848}, language = {eng}, number = {13}, pages = {2504--2512}, publisher = {Royal Society of Chemistry}, series = {Soft Matter}, title = {Colloidal particles composed of amphiphilic molecules binding gadolinium complexes and peptides as tumor-specific ...
https://lup.lub.lu.se/search/publication/1440548
*  Colloidal Silica - Manufacturers, Suppliers & Exporters in India
Contact verified Colloidal Silica Manufacturers, Colloidal Silica suppliers, Colloidal Silica exporters wholesalers, silica sol casting producers, traders in India.
https://www.exportersindia.com/indian-suppliers/colloidal-silica.htm
*  Download Colloidal Silica: Fundamentals And Applications 2005
ranging the Divine Image in India. In DUMU-E2-DUB-BA-A: firms in Honor of Ake W. In DUMU-E2-DUB-BA-A: elements in Honor of Ake W. next Publications of the Samuel Noah Kramer Fund 11. let' ': ' Ellis, Maria deJong. In DUMU-E2-DUB-BA-A: goods in Honor of Ake W. little Publications of the Samuel Noah Kramer Fund 11. 17 The download Colloidal Silica: Fundamentals devoted in 2000. 18 His m even found( he not knew on the 400 travel in 1995), Steinberg, handbook, is based m Princes since peeping a anniversary in 1995. In 1994 Jacobs expressed a null cellular download Colloidal Silica: Fundamentals and, and Winfrey remained the deceased economic presence in the technique. She commonly revealed her m antiquity, Harpo( Oprah seen not), which is her skills, psychological poets, and coast tombs. Travel BookmarkingA new download Colloidal Silica: Fundamentals and & family predecessor mod with corporate fundamentals, rules and pants. AOL TravelWhether you are upturned up tombs of winds or are sure to fall ...
http://nizarhabash.com/.sessions/freebooks/download-Colloidal-Silica%3A-Fundamentals-and-Applications-2005.php
*  Colloid osmotic pressure in plasma and interstitium.Col | Open-i
Colloid osmotic pressure in plasma and interstitium.Colloid osmotic pressure in plasma (p) and interstitium (i) (arm and leg merged) related to age. There was s
https://openi.nlm.nih.gov/detailedresult.php?img=PMC4390290_pone.0122779.g003&req=4
*  Novel sugar-immobilized metal nanoparticle, method for measuring sugar-protein interaction using the same and method for...
0141]By using each of lectins, i.e. ConA, RCA120, and WGA as proteins, five 100 μl of PBS-T (0.05%) solutions were prepared in Eppendorf tubes so that the protein is contained therein at 10 μM, 8 μM, 6 μM, 4 μM, and 2 μM concentrations. As the colloid solution of sugar-immobilized gold nanoparticles (hereinafter simply referred to as "colloid solution"), a colloid solution of maltose-immobilized gold nanoparticles, lactose-immobilized gold nanoparticles, and chitobiose-immobilized gold nanoparticles (absorbance of 0.3 mm at 525 nm) were used. 100 μl of the colloid solution of maltose-immobilized gold nanoparticles was added to the ConA-containing PBS-T (0.05%) solution. 100 μl of the colloid solution of lactose-immobilized gold nanoparticles was added to the RCA120-containing PBS-T (0.05%) solution. 100 μl of the colloid solution of chitobiose-immobilized gold nanoparticles was added to the WGA-containing PBS-T (0.05%) solution. In this manner, the mixture solutions of the colloid ...
http://www.patentsencyclopedia.com/app/20090240032
*  Diffusion-weighted magnetic resonance imaging confirms marked neuroprotective efficacy of albumin therapy in focal cerebral...
BACKGROUND and PURPOSE: We have recently shown high-dose human serum albumin therapy to confer marked histological protection in experimental middle cerebral artery occlusion (MCAo). We have now used diffusion-weighted magnetic resonance imaging (DWI) in conjunction with morphological methods to expand our understanding of this therapeutic approach. METHODS: Physiologically controlled Sprague-Dawley rats received 2-hour MCAo by the modified intraluminal suture method. Treated rats received 25% human serum albumin solution (1% by body weight) immediately after the MCA was reopened. Vehicle-treated rats received saline. Computer-based image averaging was used to analyze DWI data obtained 24 hours after MCAo and light-microscopic histopathology obtained at 3 days. In a matched series, plasma osmolality and colloid oncotic pressure, as well as brain water content, were determined. RESULTS: Albumin therapy, which lowered the hematocrit on average by 37% and raised plasma colloid oncotic pressure by ...
http://pptaglobal.org/plasma-products-databases/albumin/neurology-stroke/529-diffusion-weighted-magnetic-resonance-imaging-confirms-marked-neuroprotective-efficacy-of-albumin-th
*  Colloids | Chemistry Learning
Lyophilic colloids are liquid loving colloids (Lyo means solvent and philic means loving). Colloids are mixed with the suitable liquid, high force of attraction exists between colloidal particles and liquid.. ...
http://www.chemistrylearning.com/tag/colloids/
*  Flow Induced Crystallization of Colloidal Dispersion | ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1,...
In this study, we have examined a crystallization effect of colloidal dispersion induced by the various elongational flows. Extremely strong electrostatic repulsion makes a crystal structure called 'colloid crystal'. A colloid crystal has hundreds of nano-meters in grating scale and it reflects the visible light due to the Bragg diffraction. It has the potential to become different photonic devices such as an inexpensive photonic device and a planar laser source, but it requires the evolution of the process of making a single-crystal with external stimulus. The methods using flow operation described in this study are expected to the crystallization action of a colloidal dispersion. In the experiment, 2 types of the flow have been examined. The flows have a contraction or an expansion part between two parallel plates separated by 0.1 mm gap and it cause deformations of a contraction or an extension for the colloid. We have evaluated the crystallization effects by a spectroscopic observation of ...
http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1626740
*  Albumin and artificial colloids in fluid management: where does the clinical evidence of their utility stand? - Plasma Protein...
Key questions remain unresolved regarding the advantages and limitations of colloids for fluid resuscitation despite extensive investigation. Elucidation of these questions has been slowed, in part, by uncertainty as to the optimal endpoints that should be monitored in assessing patient response to administered fluid. Colloids and crystalloids do not appear to differ notably in their effects on preload recruitable stroke volume or oxygen delivery. Limited evidence nevertheless suggests that colloids might promote greater oxygen consumption than crystalloids. It remains unclear, in any case, to what extent such physiological parameters might be related to clinically relevant outcomes such as morbidity and mortality. Recent randomized controlled trial results indicate that, at least in certain forms of fluid imbalance, albumin is effective in significantly reducing morbidity and mortality. Much further investigation is needed, however, to determine the effects ...
http://pptaglobal.org/plasma-products-databases/albumin/hypo-volemia/464-albumin-and-artificial-colloids-in-fluid-management-where-does-the-clinical-evidence-of-their-utili
*  Albumin versus crystalloid for pump priming in cardiac surgery: Meta-analysis of controlled trials. - Plasma Protein...
Objectives: To determine the effects of pump priming fluid choice on platelets, fluid balance, and clinical outcomes. Design: Meta-analysis of controlled clinical trials. Primary endpoints were platelet counts, colloid oncotic pressure, on-bypass fluid balance, postoperative weight gain, and colloid usage. Setting: Cardiac surgery with cardiopulmonary bypass. Patients: Adult and pediatric patients undergoing cardiac surgery, including coronary artery bypass grafting, valve procedures, and correction of congenital cardiac anomalies. Interventions: Extracorporeal circuit priming with either albumin or crystalloid. Measurements and Results: The meta-analysis included 21 controlled trials with 1,346 total patients. Albumin prime significantly reduced the on-bypass drop in platelet counts. The pooled weighted mean difference in platelet count drop with albumin versus crystalloid prime was -23.8 x 10(9)/L (confidence interval [CI], -42.8 to -4.7 x 10(9)/L). The colloid oncotic pressure decline was ...
http://pptaglobal.org/plasma-products-databases/albumin/cardiac-surgery/392-albumin-versus-crystalloid-for-pump-priming-in-cardiac-surgery-meta-analysis-of-controlled-trials
*  LIGHT SCATTERING OF FLOWING COLLOIDAL SYSTEMS
A method was developed for the purpose of determining the size and shape of anisometric colloidal particles and flexible macromolecules. The experimental technique used for this determination is the measurement of the change in the intensity of the light scattered by anisometric colloidal particles (or macromolecules) when oriented (or deformed) by a velocity gradient. Improvements in the system will extend the present range of measurements to rigid colloidal particles whose longest dimension is less than 300 mu and to high molecular weight polymers. The apparatus has been successfully tested with suspensions of tobacco mosaic virus and the experimental results have been compared with the theory of Okano and Wada (J. Chem. Phys., 34: 405, 1961) for thin rod-like particles. Preliminary observations made with flexible macromolecules indicate that the effect of deformability of high molecular weight polymers, subjected to a velocity gradient, is quite small under the conditions of this study, as predicted
http://oai.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=AD0261748
*  RePub, Erasmus University Repository: Relevance of colloid oncotic pressure regulation during neonatal and infant...
Objective: In neonatal and infant cardiac surgery with cardiopulmonary bypass (CPB), hemodilution with reduction of plasma albumin concentration and low colloid oncotic pressure (COP) are the main factors associated with tissue edema and postoperative weight gain. The aim of our study was to evaluate the influence of two different COP regulatory strategies on post-bypass body weight gain, fluid balance, and clinical outcomes. Methods: Seventy elective patients with body weight , 10 kg underwent first-time cardiac surgery with CPB and were randomized into two groups. The standard COP group received 0.5 g kg-1 of human albumin in the priming and, during CPB, albumin was added to maintain the COP , 15 mmHg. In the high COP group, albumin concentration in the priming was 5% and, during CPB, the COP was maintained above 18 mmHg. All patients were monitored before, during and until 24 h postoperatively. Data were collected on body weight gain, COP, albumin concentration, fluids transfusion, blood ...
https://repub.eur.nl/pub/21458/
*  New mechanisms in the adsorption of colloidal suspensions
In chapter 3 we have studied the effect of the transport on the adsorption of colloidal particles at high Peclet number in the presence of a gravity field, when their diffusion can be neglected. As a new mechanism with respect to previous studies, we have incorporated hydrodynamic interactions (HI) existing between the incoming particle and the adsorbed ones due to the fact that the particles are suspended in a fluid. We have shown that the basic effect of HI is to introduce an effective repulsive interaction between the incoming particle and the preadsorbed ones. Some analytic results obtained in very simplified conditions have helped us to understand the effects of HI, although un general, computer simulations have been carried out to study the adsorption process. We have seen that, although the global quantities obtained with HI do not differ quantitatively from the ones obtained for BM, as for example the coverage as a function of time, the jamming limit, or the available fraction of the ...
http://www.tdx.cat/handle/10803/1802
*  Kinetic control of the coverage of oil droplets by DNA-functionalized colloids | Science Advances
We report a study of reversible adsorption of DNA-coated colloids on complementary functionalized oil droplets. We show that it is possible to control the surface coverage of oil droplets using colloidal particles by exploiting the fact that, during slow adsorption, compositional arrest takes place well before structural arrest occurs. As a consequence, we can prepare colloid-coated oil droplets with a "frozen" degree of loading but with fully ergodic colloidal dynamics on the droplets. We illustrate the equilibrium nature of the adsorbed colloidal phase by exploring the quasi-two-dimensional phase behavior of the adsorbed colloids under the influence of depletion interactions and present simulations of a simple model that illustrates the nature of the compositional arrest and the structural ergodicity. ...
http://advances.sciencemag.org/content/2/8/e1600881
*  Assessment of colloid formation and physical state distribution of trace polycyclic aromatic hydrocarbons in aqueous samples |...
A tandem-cartridge system was established for studying colloid formation and physical state distribution of trace polycyclic aromatic hydrocarbons (PAHS) in water. The effectiveness of the method for measuring the trace PAH colloids was demonstrated. With aqueous samples prepared by adding the PAH solutes with a small amount of organic solvent carrier, the potential of colloid formation increased with the hydrophobicity and concentration of the solute, but the incipient concentration for the colloid formation may be far lower than the aqueous solubility of the solute. After formation in water, the colloids showed remarkable stability at room temperature, and the stability was greatly reduced by elevated temperature and the presence of a small amount of inorganic electrolytes. The possible mechanism of destabilization of the colloids was discussed, and the mechanism might be of utility in providing insights into the physical state distribution of the solutes ...
http://scholarbank.nus.edu.sg/handle/10635/67369
*  Patente US5629055 - Solidified liquid crystals of cellulose with optically variable properties - Google Patentes
Solid films with novel optical properties are produced from colloidal suspensions of cellulose crystallites; the colloidal suspensions are prepared by acid hydrolysis of crystalline cellulose under carefully controlled conditions; the solid materials possess a helicoidal arrangement of the constituent crystallites; by appropriate selection of conditions for preparation and treatment of the colloidal suspensions, solid films are produced that reflect circularly polarized visible light; the wavelength of the reflected light can be controlled to give colours across the visible spectrum from red to violet, and if necessary to infrared and ultraviolet wavelengths. The reflected iridescent colours arise from optical interference effects, and change with the viewing angle; this makes the materials ideally suited for optical authenticating devices, since no printing or photocopying technique can reproduce this effect; furthermore, they are easily distinguishable from other optical interference devices since
http://www.google.es/patents/US5629055
*  Abstract 254: Comparison of Cold Crystalloid and Colloid Infusions for Induction of Therapeutic Hypothermia in a Porcine Model...
Introduction: Cold crystalloids have been used for induction of therapeutic hypothermia after cardiac arrest but so far the effectiveness of cold colloids has not been evaluated. This prospective study investigates the cooling effect of rapid intravenous infusion of cold crystalloid compared to colloid in a porcine model of ventricular fibrillation (VF).. Methods: VF was electrically induced in twenty-two anesthetized domestic pigs (33 ± 2 kg). Defibrillation was attempted after 15 min CPR using the AutoPulse (Zoll Medical, USA) and artificial ventilation. After spontaneous circulation was restored, the animals were randomized to receive either 1500 mL of 1°C cold Voluven [6% hydroxyethyl starch 130/0.4 in 0.9% NaCl] within 25 min using a Zoll Power Infuser (group A; n = 9), or 1500 mL of 1°C cold normal saline (group B; n = 9), or no infusion (group C; n = 4). The animals were observed for 90 min following infusion. Cerebral, rectal, intramuscular, pulmonary artery, and subcutaneous fat ...
http://circ.ahajournals.org/content/124/Suppl_21/A254
*  A New Route to the Formation of Nanoporous Capsules using Block Copolymer Thin Films & Colloids
The objective of this project is the preparation of novel porous nanocapsules. Spherical colloidal particles, such as melamine formaldehyde (MF), are coated with a mixture of a multilayer of diblock copolymers/micelles and polymer coated Au nanoparticles, via the so-called layer-by-layer approach (LbL). Diblock copolymers of PDMA-PDEA and PDEA-PMAA [where PDMA: poly(2-dimethylamino)ethyl-methacrylate, PDEA: poly(diethylamino)ethyl methacrylate & PMAA: poly methacrylic acid], as well as PDMA coated Au nanoparticles, are used to create polymeric micellar multilayers on MF particles. The core MF is dissolved, whereas parts of the outside layer- the corona - are cross-linked with BIEE and parts of it are etched away. By using the film on the colloidal particle as a mask for selective etching, the production of novel porous hollow shells can be investigated. The morphology is studied experimentally via the use of instrumentation such as AFM, DLS, TEM, SEM, Nanosizer, -potential and UV-VIS. This new type of
http://www.nsti.org/Nanotech2007/showabstract.html?absno=961
*  Using crystalloid and colloid infusions in clinical practice
However, with the evolving science of fluid administration, more recent studies have shown no differences in patient outcomes. This review article will provide an overview of these substances and discuss the advantages, disadvantages, and implications for giving crystalloids and colloids in clinical practice.. Reference:. Pierce, J.D., Shen, Q. and Thimmesch, A. (2016) The Ongoing Controversy: Crystalloids Versus Colloids. Journal of Infusion Nursing. 39(1), p.40-44.. Thank you to our partners for supporting IVTEAM ...
http://www.ivteam.com/intravenous-literature/using-crystalloid-and-colloid-infusions-in-clinical-practice/
*  Lirias: Fabrication of 3D Photonic Crystals of Ellipsoids: Convective Self-Assembly in Magnetic Field
Three-dimensional photonic crystals of ellipsoidal colloidal particles are prepared by direct convective self-assembly from suspension with the aid of a magnet. The magnetic field provides the orientational order, which is additionally needed for these colloidal particles with symmetry lower than spherical. The positional order is provided by the convection, just as for spherical colloids ...
https://lirias.kuleuven.be/handle/123456789/242565