colloidal solution


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solution

 [so-loo´shun]
1. a homogeneous mixture of one or more substances (solutes) dispersed molecularly in a sufficient quantity of dissolving medium (solvent).
2. in pharmacology, a liquid preparation of one or more soluble chemical substances, which are usually dissolved in water. For names of specific solutions, see under the name.
3. the process of dissolving or disrupting.
4. a loosening or separation.

Preparation of Solutions. Formula for preparing solutions from a pure drug:


For example, to prepare 2000 mL of a 2 per cent solution from boric acid crystals, the proportion would be

Formula for preparing solutions from stock solutions:

For example, to prepare 1000 mL of a 2 per cent solution from a 4 per cent stock solution, the proportion would be
aqueous solution one in which water is used as the solvent.
BCG solution an aqueous suspension of bacille Calmette-Guérin for instillation into the bladder to activate the immune system in treatment of superficial bladder cancers. It reduces the risk of a subsequent bladder cancer developing, although the exact mechanism of action is unknown.
buffer solution one that resists appreciable change in its hydrogen ion concentration (pH) when acid or alkali is added to it.
colloid solution (colloidal solution) imprecise term for colloid (def. 3).
hyperbaric solution one having a greater specific gravity than a standard of reference.
hypertonic solution one having an osmotic pressure greater than that of a standard of reference.
hypobaric solution one having a specific gravity less than that of a standard of reference.
hypotonic solution one having an osmotic pressure less than that of a standard of reference.
isobaric solution a solution having the same specific gravity as a standard of reference.
isotonic solution one having an osmotic pressure the same as that of a standard of reference.
molar solution a solution in which each liter contains 1 mole of the dissolved substance; designated 1 M. The concentration of other solutions may be expressed in relation to that of molar solutions as tenth-molar (0.1 M), etc.
normal solution a solution in which each liter contains 1 equivalent weight of the dissolved substance; designated 1 N.
ophthalmic solution a sterile solution, free from foreign particles, for instillation into the eye.
saturated solution one in which the solvent has taken up all of the dissolved substance that it can hold in solution.
sclerosing solution one containing an irritant substance (sclerosing agent) that will cause obliteration of a space, as in sclerotherapy.
standard solution one that contains in each liter a definitely stated amount of reagent; usually expressed in terms of normality (equivalent weights of solute per liter of solution) or molarity (moles of solute per liter of solution).
supersaturated solution an unstable solution containing more of the solute than it can permanently hold.
volumetric solution one that contains a specific quantity of solvent per stated unit of volume.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

col·loi·dal so·lu·tion

a dispersoid, emulsoid, or suspensoid.
Farlex Partner Medical Dictionary © Farlex 2012

col·loi·dal so·lu·tion

(kol-oyd'ăl sŏ-lū'shŭn)
A dispersoid, emulsoid, or suspensoid.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Figures 1(b), 1(d), and 1(f) show SEM images of colloidal solutions of NPs prepared to test in SERS measurements of human cancer breast tissues.
Geometry-Dependent Resonances of Colloidal Solutions. The application of (6) for the interpretation of the dependence of the long-wavelength resonance from the particle size leads to a constant first term of about 500 nm.
The measured data of 100 nm represented the size of Si[O.sub.2] nanoparticles in colloidal solution. The content of Si[O.sub.2] particles is the weight of dried Si[O.sub.2] particles divided by that of colloidal solutions.
The data of present study says when 0.5, 1, 5, 10, 15 & 20 mg/kg/day silver nanoparticle colloidal solution is injected to pregnant Swiss albino mice it causes arousal of culminative toxicity in fetuses with various malformations.
SEM and EDAX images of treated fabrics are presented in Figures 1, 2, 3, 4, 5, 6, and 7 for colloidal solution of silver chloride and titanium dioxide sanitized T 27-22 silver, control sample and for sample antimicrobial finished plasma functionalized.
The dependence of the absorbance of the colloidal solution of the synthesized AgNPs on the concentration of PI is shown in Figure 1.
The optimum conditions of the photosynthesis of AgNPs obtained from this method were applied on a larger scale to prepare AgNPs "stock colloidal solution" sample sufficient for finishing different textile fabrics to impart them antibacterial properties.
Elaborating on the method of the research, Hajizadeh said, "Colloidal solution of silver nanoparticles has a bright yellowish color.
HydriPrint 150 is a neutralized colloidal solution offering good dilutability and viscosity stability over a wide pH range.
As the concentration of particles is increased, the colloidal solution becomes more viscous, leading to gelation of the particles.
The product is prepared by dispersing amaranth powder in water and enzymatically hydrolyzing it to make a colloidal solution, which is then filtered to produce a clear product.
The second step was to synthesize the hybrid polymer, that is, the polymerization of acrylamide monomers in an Al(OH)3 colloidal solution with [(N[H.sub.4]).sub.2][S.sub.2][O.sub.8]-NaHS[O.sub.3] as an initiator.