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Topic: Colloidal suspension

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	Colloid - Wikipedia, the free encyclopedia
		In general, a colloid or colloidal dispersion is a substance with components of one or two phases, a type of mixture intermediate between a homogeneous mixture (also called a solution) and a heterogeneous mixture with properties also intermediate between the two.
		Colloids may be colored or translucent because of the Tyndall effect, which is the scattering of light by particles in the colloid.
		In a stable colloid, mass of a dispersed phase is so low that its buoyancy or kinetic energy is too little to overcome the electrostatic repulsion between charged layers of the dispersing phase.
	en.wikipedia.org /wiki/Colloid (868 words)

	Suspension (chemistry) - Wikipedia, the free encyclopedia
		In chemistry, a suspension is a colloidal dispersion (mixture) in which a finely-divided species is combined with another species, with the former being so finely divided and mixed that it doesn't rapidly settle out.
		A suspension of liquid droplets or fine solid particles in a gas is called an aerosol.
		It is important to distinguish suspensions from solutions which do not separate over any period of time because the intermolecular forces between the different types of molecules are of similar strength to the attraction between molecules of the same type.
	en.wikipedia.org /wiki/Suspension_(chemistry) (320 words)

	Colloidal minerals:Colloids can be defined as particles of a substance which are finely divided and mixed in a ...
		Colloids can be defined as particles of a substance which are finely divided and mixed in a supporting substance (liquid, gel, gas, etc.).
		Substances held in a colloidal state are in a medium (any substance that acts as a surrounding or enveloping base for another substance) that is actually somewhere between a suspension and a solution.
		The term used to describe the condition in which materials are held in a stable, colloidal suspension is called the 'dispersed phase.' In the dispersed phase they are distributed evenly and uniformly,throughout whatever medium they are suspended in (e.g., water, gel, etc.).
	www.american-nutrition.com /suspension.html (407 words)

	colloids
		It may be useful to observe that a suspension is any system in which small solid or liquid particles are more or less evenly dispersed in a second medium, typically a gas or a liquid.
		Proteins or small carbohydrate polymers (which are themselves colloidal in size) often act as emulsifiers by coating the surfaces of the dispersed phase and thus preventing coalescence.
		In a colloidal suspension, the colloid particles are sufficiently large to significantly scatter the light and so make the beam visible from side view.
	www.sciencebyjones.com /colloids.htm (582 words)

	Hydrodynamic Behavior of Suspensions of Polar Particles (Site not responding. Last check: 2007-11-02)
		The macroscopic behavior of the suspension is then a consequence of a statistical average of all the fluctuations and interactions.
		Summing up, it is of interest to understand the equilibrium and dynamical properties of colloidal suspensions as well as to describe their transport and response coefficients that are necessary for their research and application.
		In particular, the study of the formation and behavior of colloidal suspensions under different conditions, such as shear flow, and the influence of external fields are of scientific and practical interest.
	dekker.com /sdek/3291325-9571195/abstract~db=enc~content=a713562395~... (1127 words)

	COLLOIDAL SILVER (Site not responding. Last check: 2007-11-02)
		Colloidal Silver is manufactured by a highly technical, electro-colloidal non-chemical method in which particles (with 15 atoms or less) of 99.9929% fine silver are electrically charged and attached to a molecule of protein and held in suspension in a solution of de-ionized or distilled water.
		Colloidal Silver is not adversely affected by gravity because the particles possess a uniform positive or negative electrical charge, thereby causing them to repel one another, which allows them to remain in a rather homogenous solution.
		Colloidal Silver’s destructive action on microbes is so incredible that it will protect rabbits tested in laboratory conditions from ten times the lethal dose of the diphtheric toxin, and Colloidal Silver remains stable even in the presence of salts and normal constituents of the blood.
	www.alternativescentral.com /colloidalsilver.htm (6964 words)

	Colloids
		Colloids are often called a "fourth state of matter," and I wondered just how meaningful this concept is. We shall find that it is very difficult to encapsulate any concept concerning colloids in a word, though heaven knows chemists have tried, and many words have been coined.
		Colloidal systems need not be turbid: a gel may be quite transparent when the particles are small.
		The colloidal phase in a gelatin is fibrillar, composed of fibers of colloidal cross-section.
	www.du.edu /~jcalvert/phys/colloid.htm (8512 words)

	Understanding Colloidal Suspensions - Help from Frank Hartman & Thomas Riddick (Site not responding. Last check: 2007-11-02)
		Colloidal particles are often best distinguished from ordinary molecules due to the fact that colloidal particles cannot diffuse through membranes which do allow ordinary molecules and ions to pass freely.
		Colloids in suspension determine the ability of all liquids particularly water-based liquids to carry material.
		While colloidal chemists understand in detail the actions of colloids in solution, the understanding of the factors enumerated here, which affect them and the principles on which they are based is missing.
	www.hbci.com /~wenonah/info/colloid.htm (3849 words)

	Colloidal Micelles (Site not responding. Last check: 2007-11-02)
		Both the dispersed phase and the dispersion medium may be solid, liquid, or gaseous, although the dispersal of one gas in another is not known as colloidal dispersion.
		An aerosol is a colloidal dispersion of either a solid or a liquid in a gas.
		Although individual colloidal particles are too small to be seen with an ordinarymicroscope, they can be made visible by means of an ultramicroscope, or dark-field microscope.
	www.envirosan.com /s2encolloidal.html (189 words)

	Amber Colloidal Silver Generator;Making colloidal silver directions,information,research. (Site not responding. Last check: 2007-11-02)
		Colloidal silver is a colloidal suspension of silver ions which you can make and apply at home.
		Colloidal suspension is a solid which is held in liquid suspension via 'like' electrical charge (so the molecules of silver repel each other).
		At this size and smaller, silver ions (in the colloidal suspension) have been found HIGHLY antibacterial, anti fungal, anti viral and can very effectively be made at home with boiled distilled water (keeps for months in the dark cupboard) or fast in a pinch with any room temperature bottled/filtered drinking water.
	www.colloidalsilver.cc (1451 words)

	Colloidal Silver (Site not responding. Last check: 2007-11-02)
		The process is very similar to that used to electroplate a precious metal onto an object except that the absence of a receiving object at another electrode causes the silver to remain in a colloidal suspension in the water.
		Colloidal silver is completely eliminated from the body by the kidneys, lymph system and bowels after several weeks.
		Colloidal silver only kills micro-organisms when they are in contact with it for a sufficient period of time.
	www.globallight.net /custom.aspx?id=9 (3064 words)

	Colloidal Silver
		Colloidal silver is a dispersion of sub-microscopic particles of the metal silver in distilled water.
		Colloidal Silver is tasteless, odorless and non-stinging to sensitive tissues.
		Colloidal suspensions consist of particles that will not dissolve in the liquid in which they are placed, but if their particle size is small enough, and especially if an electrical charge can be generated in the particles, they will remain indefinitely in a colloidal suspension.
	www.cybervitamins.com /silverc.htm (758 words)

	Allied High Tech: Polishing - Colloidal Silica / Alumina Suspensions
		Used for final polishing, colloidal suspensions are mixtures of abrasive particles dispersed throughout a chemically aggressive liquid carrier.
		A non-crystallizing silica suspension with a pH of 9.8.
		An acidic alumina suspension with a pH of 3.5.
	www.alliedhightech.com /polishing/colloidalsus (216 words)

	Gravitational compression in colloidal suspension (Site not responding. Last check: 2007-11-02)
		Gravitational effect in colloidal suspensions is examined both theoretically and experimentally by light scattering.
		In contrast to the previous theory the present theory predicts the cube of the nearest-neighbour distance to vary linearly as a function of height of the suspension.
		The time taken for the colloidal suspension to reach gravitational equilibrium as well as deionisation equilibrium is obtained.
	stacks.iop.org /0305-4470/18/3389 (280 words)

	Colloidal Chemistry (Site not responding. Last check: 2007-11-02)
		It is a story of killing, death, friendship and honour.
		Colloidal Forces, Interactions and Stability: Proteins, Surfactants, Emulsions - O..
		Welcome to International Symposium in Colloidal and Interface Technology, Fundamendals and Applications, 6 - 8 November 2002, Lund, Sweden...
	www.colloidalchemistry.info (334 words)

	The smectic phase in a colloidal suspension of semi-flexible virus particles
		Aqueous suspensions of the micron length, semi-flexible virus fd are studied in order to experimentally explore properties of the nematic - smectic phase transition in a system approximating flexible, hard rods.
		The open circles and triangles correspond to the highest measured concentrations of the cholesteric and smectic phases, respectively while the solid triangles and circles correspond to the lowest measured concentrations of the disordered and smectic phases, respectively.
		Although the isotropic - cholesteric and cholesteric - smectic (C - Sm) phase transitions are observed in fd suspensions, we found that experiments compared well with the theory of the isotropic - nematic transition of flexible hard polymers [28].
	www.elsie.brandeis.edu /seth/smectic/fdprlsm3.html (2534 words)

	Evolution of the sedimentation equilibrium in an interacting colloidal suspension (Site not responding. Last check: 2007-11-02)
		The evolution of the sedimentation equilibrium from the initial state of the uniform distribution of particles in a column of aqueous suspension of interacting polystyrene particles is investigated.
		An analytic expression for the particle concentration is obtained as a function of the height in the column and of the time from the initial state.
		The difference between the gravitational force and the elastic restoring force on a particle in the suspension is equated to the viscous drag force on the particle.
	stacks.iop.org /0953-8984/2/4273 (282 words)

	Amazon.com: Macroions in Solution and Colloidal Suspension: Books: Kenneth S. Schmitz (Site not responding. Last check: 2007-11-02)
		A comprehensive overview of the physical properties of charged particles in solution and suspension, combining a theoretical foundation with discussions addressed to exerpimentalists.
		A major emphasis is the role of the dynamics and distribution of the macroionic solutions and suspensions.
		A major emphasis of this book is the role of the dynamics and distribution of the electrolyte ions in the determination of the physical properties of the macroionic solutions and suspensions.
	www.amazon.com /exec/obidos/tg/detail/-/0471187631?v=glance (496 words)

	Caltech Authors - Holographic grating formation in a colloidal suspension of silver nanoparticles (Site not responding. Last check: 2007-11-02)
		Adleman, James R. and Eggert, Helge A. and Buse, Karsten and Psaltis, Demetri (2006) Holographic grating formation in a colloidal suspension of silver nanoparticles.
		Holographic gratings are recorded in colloidal suspensions of silver nanoparticles by utilizing interfering nanosecond pulses.
		You are granted permission for individual, educational, research and non-commercial reproduction, distribution, display and performance of this work in any format.
	resolver.caltech.edu /CaltechAUTHORS:ADLol06 (214 words)

	Martensitic Transition in a Confined Colloidal Suspension (Site not responding. Last check: 2007-11-02)
		[K19.14] Martensitic Transition in a Confined Colloidal Suspension
		We describe a nonequilibrium phase transition in a geometrically confined charge-stabilized colloidal suspension.
		The equilibrium configuration for the spheres in this system is a two-layer square lattice, equivalent to two layers of a bcc lattice.
	flux.aps.org /meetings/BAPSMAR95/abs/SK1914.html (107 words)

	Martensitic transition in a confined colloidal suspension (Site not responding. Last check: 2007-11-02)
		phase transition in a geometrically confined charge-stabilized colloidal suspension.
		After electrophoretic shear melting, the suspension rapidly crystallizes to a buckled single-layer triangular lattice.
		This well-ordered solid phase subsequently undergoes a martensitic phase transition back to the two-layer square lattice.
	mrsec.uchicago.edu /Publications/Oxtoby/oxtoby007.html (87 words)

	Vitaklenz herbal capsules and Volcomin colloidal suspension (Site not responding. Last check: 2007-11-02)
		Volcomin brings you the richest source of Humic Acid, Fulvic acid and Volcanic Cinders in a colloidal suspension.
		Volcanic Cinders are chelated by the organic acids so this mixture has become the most potent brew of more than 77 colloidal minerals and trace elements, essential amino acids and plant enzymes.
		In this modern age we have so many disorders being caused by acid alkaline imbalance, heavy metal toxicity, nutritional deficiencies and excessive free radicals.
	www.saferemedies.net /product_v.htm (275 words)

	Fluctuations of the Crystal Fluid Interface in a Colloidal Suspension (Site not responding. Last check: 2007-11-02)
		Fluctuations of the Crystal Fluid Interface in a Colloidal Suspension
		We describe ``atomic-scale'' fluctuations at the fcc-crystal-fluid interface in a charge stabilized colloidal suspension.
		We use digital video microscopy to extract measures of local order from snap shots of the colloidal microspheres' instantaneous positions.
	flux.aps.org /meetings/BAPSMAR95/abs/SK1915.html (117 words)

	Wiley::Macroions in Solution and Colloidal Suspension (Site not responding. Last check: 2007-11-02)
		Wiley > Chemistry > Physical Chemistry > Surface & Colloid Chemistry > Macroions in Solution and Colloidal Suspension
		The Colloidal Domain: Where Physics, Chemistry, Biology, and Technology Meet, 2nd Edition (Hardcover)
		Surfaces, Interfaces, and Colloids: Principles and Applications, 2nd Edition (Hardcover)
	www.wiley.com /WileyCDA/WileyTitle/productCd-0471187631.html (181 words)

	Find in a Library: Macroions in solution and colloidal suspension (Site not responding. Last check: 2007-11-02)
		Find in a Library: Macroions in solution and colloidal suspension
		To find this item in a library, enter a postal code, state, province, or country in the field above.
		WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries.
	worldcatlibraries.org /wcpa/ow/4eff2daa0a4e23d0a19afeb4da09e526.html (45 words)

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