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A hydrogel is a biphasic material, a mixture of porous and permeable solids and at least 10% of water or other interstitial fluid. [1] [2] ...
Hydrogels can be used as drug delivery vehicles, for transdermal application, ophthalmic drug delivery, [11] cancer treatment [12] or for wound dressing. [7] [13] As a type of water based formulation, hydrogels are generally less greasy and are easier to be removed than oil-based formulations like organogels. [6]
An upturned vial of hair gel Silica gel. A gel is a semi-solid that can have properties ranging from soft and weak to hard and tough. [1] [2] Gels are defined as a substantially dilute cross-linked system, which exhibits no flow when in the steady state, although the liquid phase may still diffuse through this system.
Self-healing hydrogels are a specialized type of polymer hydrogel.A hydrogel is a macromolecular polymer gel constructed of a network of crosslinked polymer chains. Hydrogels are synthesized from hydrophilic monomers by either chain or step growth, along with a functional crosslinker to promote network formation.
A nanogel is a polymer-based, crosslinked hydrogel particle on the sub-micron scale. [1] [2] [3] These complex networks of polymers present a unique opportunity in the field of drug delivery at the intersection of nanoparticles and hydrogel synthesis.
“Alongside panthenol, which helps speed up regeneration and repair while moisturizing the skin, research shows that glycerin-based hydrogels help control infections in wounds, which lasers ...
Novel chitosan/sodium polyacrylate polyelectrolyte complex hydrogels (CPG) have been fabricated successfully in a study by cross-linking chitosan and sodium polyacrylate with epichlorohydrin (ECH) through the inhibiting protonation effect of chitosan in an alkali/urea aqueous solution. The CPG had a high swelling ratio because of sodium ...
Eggnog: the drink that indirectly led to grandma getting run over by a reindeer.. It's finally that time of year again, when grocery stores start stocking up on eggnog and polarize consumers, who ...