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An alginate dressing is a natural wound dressing derived from carbohydrate sources released by clinical bacterial species, in the same manner as biofilm formation. These types of dressings are best used on wounds that have a large amount of exudate .
Alginate absorbs water quickly, which makes it useful as an additive in dehydrated products such as slimming aids, and in the manufacture of paper and textiles. [ citation needed ] Alginate is also used for waterproofing and fireproofing fabrics, in the food industry as a thickening agent for drinks, ice cream, cosmetics, as a gelling agent for ...
Calcium alginate is a water-insoluble, gelatinous, cream-coloured substance that can be created through the addition of aqueous calcium chloride to aqueous sodium alginate. Calcium alginate is also used for entrapment of enzymes and forming artificial seeds in plant tissue culture.
Similarly to how water dropped into a quantity of oil forms a bubble of water in the oil, each drop of the alginated liquid tends to form into a small sphere in the calcium solution. During a reaction time of a few seconds to a few minutes, the calcium solution causes the outer layer of each alginated liquid sphere to form a thin, flexible skin.
[70]: 29 The World Health Organization (WHO) includes silver in a colloidal state produced by electrolysis of silver electrodes in water, and colloidal silver in water filters as two of a number of water disinfection methods specified to provide safe drinking water in developing countries. [71]
This page was last edited on 4 May 2019, at 22:48 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
The personal skin care market based on natural products has shown strong growth. [7] Clinical and laboratory studies have identified activities in many natural ingredients that have potential beneficial activities for personal skin care, [ 2 ] [ 3 ] but there is a shortage of convincing evidence for natural product efficacy in medical problems.
A layer of petrolatum applied to normal skin can reduce that loss by 50–75% for several hours. [4] Oils naturally produced by the human body moisturize through this same mechanism. [2] Humectants are hydrophilic and absorb water. They absorb water from humid air (when >70% humidity) to moisturize the skin.