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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. Aerogels can be made from a variety of ...
Either way, in 1931 Kistler published a paper in Nature (vol. 127, p. 741) titled "Coherent Expanded Aerogels and Jellies". He left his teaching post at the University of Illinois in 1935 and signed a contract with Monsanto Company in the early 1940s to start developing granular silica aerogel products under the trademark Santocel. Largely used ...
SEAgel can be made lighter than air using hydrogen, causing it to float or hang in the air. It insulates against temperature, noise, and electric current. SEAgel is also completely biodegradable, as it is made entirely of biological material and can even be eaten. [2] Initially, SEAgel starts out as a gelatin-like mixture of agar and water.
Aerographene or graphene aerogel is the least dense solid known to exist, at 160 g/m 3 (0.0100 lb/cu ft; 0.16 mg/cm 3; 4.3 oz/cu yd). [1] The material reportedly can be produced at the scale of cubic meters.
Biologically based dressings: Integra LifeSciences’ artificial skin is placed on a wound where burned or scarred skin has been removed. Comprised of two-layers, an under layer made of collagen from cows and glycosaminoglycan from shark cartilage, and a outer silicone layer, the membrane provides scaffolding to regrow a new layer of dermis. [27]
Artificial skin made by Integra composed of an outer silicone film and inner matrix of cross linked fibers. Artificial skin is a collagen scaffold that induces regeneration of skin in mammals such as humans. The term was used in the late 1970s and early 1980s to describe a new treatment for massive burns.
A chalcogel or properly metal chalcogenide aerogel is an aerogel made from chalcogenides. [1] Chalcogels preferentially absorb heavy metals, [2] such as mercury, lead, and cadmium, from water. [3] Sulfide chalcogels are also very good at desulfurization. [4]
Boron nitride aerogel is an aerogel made of highly porous boron nitride (BN). It typically consists of a mixture of deformed boron nitride nanotubes and nanosheets . It can have a density as low as 0.6 mg/cm 3 and a specific surface area as high as 1050 m 2 /g, and therefore has potential applications as an absorbent , catalyst support and gas ...