Here is the abstract from the article:"Polyethylene glycol (PEG) is widely utilized in drug delivery and nanotechnology due to its reported “stealth” properties and biocompatibility. As background, polyethylene glycol (PEG) is a water-soluble, hydrophilic molecule petroleum-derived compound made from ethylene glycol (which you may know best as the main ingredient in antifreeze). Moderna vaccine:As you can see, Just like Cracker Jacks, there's a prize in every package (vial)! These lipid nanoparticles are "PEGylated" or chemically attached to polyethylene glycol molecules that coat the exterior of the particles, allowing for a longer life span to improve absorption. You can publish this article on your website as long as you provide a link back to this page.