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Although oral glucose gel is often recommended to diabetics, including by medical providers and organisations such as Diabetes UK, [3] its efficacy in treating hypoglycaemia has been questioned. A 1978 study demonstrated poor absorption through the oral mucosa, and concluded that such gels have therapeutic value only when swallowed by the patient.
Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. [3] The result is a solid with extremely low density [4] and extremely low thermal conductivity.
Colloidal silica gel with light opalescence. Silica gel is an amorphous and porous form of silicon dioxide (silica), consisting of an irregular tridimensional framework of alternating silicon and oxygen atoms with nanometer-scale voids and pores. The voids may contain water or some other liquids, or may be filled by gas or vacuum.
An ice pack Shipment of vaccine in insulated box with gel packs An ice pack or gel pack is a portable bag filled with water, refrigerant gel , or liquid, meant to provide cooling. They can be divided into the reusable type, which works as a thermal mass and requires freezing, or the instant type, which cools itself down using chemicals but can ...
Gelatin, here in sheets for cooking, is a hydrogel. Peptide hydrogel formation shown by the inverted vial method. A hydrogel is a biphasic material, a mixture of porous and permeable solids and at least 10% of water or other interstitial fluid.
Other polymers, such as polyethylene and polystyrene, do not normally absorb much moisture, but are able to carry significant moisture on their surface when exposed to liquid water. [ 33 ] Type-6 nylon (a polyamide ) can absorb up to 9.5% of its weight in moisture.
Shower gel is a derivative invention of the liquid soap, which first appeared in the 1800s. In 1865, William Shepphard patented the formula behind the liquid soap, [1] but the product gained eventual popularity with the rise of Palmolive soap in 1898, by B.J. Johnson.
The story goes that Hernández, a nursing student, realized that a gel with 60–65% alcohol could be used as a cleanser when soap and water weren't easily available. [ 1 ] [ 6 ] Barton reported that Hernández had shared the idea with an "invention hotline" and she had at least attempted to patent the formula.