polietylenuglikolu

Polyethylene glycol (PEG) is a type of polymer consisting of repeating units of ethylene oxide. It is a versatile compound used in various industries due to its unique properties. PEG is a non-ionic, water-soluble polymer that is often used as a solvent, emulsifier, and humectant in pharmaceuticals, cosmetics, and food industries. It is also used in the production of polyesters and as a lubricant in the manufacturing of plastics.

PEG is available in a wide range of molecular weights, from low molecular weight PEGs (PEG 200, PEG 400) to high molecular weight PEGs (PEG 20,000). The molecular weight of PEG determines its physical and chemical properties, such as viscosity, solubility, and biocompatibility. Low molecular weight PEGs are highly soluble in water and are often used as solvents and humectants. High molecular weight PEGs, on the other hand, are less soluble in water but are highly biocompatible and are often used in biomedical applications.

PEG is also used as a stabilizer and dispersant in the production of nanoparticles and quantum dots. It is used in the formulation of drug delivery systems, such as PEGylated liposomes and PEGylated proteins, to improve their stability, solubility, and bioavailability. PEG is also used in the production of PEGylated polymers, such as PEGylated polyesters, which are used in the fabrication of tissue engineering scaffolds and drug delivery systems.

PEG is generally considered safe for use in food, pharmaceuticals, and cosmetics. However, like any chemical compound, PEG can have potential health and environmental impacts if not used properly. It is important to follow proper handling and disposal procedures to minimize these impacts.