PEG hydrogels

https://en.m.wikipedia.org/wiki/Polyethylene_glycol

https://en.m.wikipedia.org/wiki/Ethylene_oxide

https://en.m.wikipedia.org/wiki/Ethylene

https://en.m.wikipedia.org/wiki/Methionine

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https://en.m.wikipedia.org/wiki/PEGylation

https://en.m.wikipedia.org/wiki/Phospholipid

https://en.m.wikipedia.org/wiki/Sterol

https://pubmed.ncbi.nlm.nih.gov/31348638/

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PEG can be modified and crosslinked into a hydrogel and used to mimic the extracellular matrix (ECM) environment for cell encapsulation.

An example study was done using PEG-Diacrylate hydrogels to recreate vascular environments with the encapsulation of endothelial cells and macrophages.

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https://www.primordialgenetics.com/biologically-produced-l-methionine-fermentation-is-the-future-of-feed/

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Oxidation of Epinephrine to Adrenochrome by Cetyltrimethylammonium Dichromate: A Mechanistic Study

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Liposomes replace serum for cultivation of fermenting mycoplasmas.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC239397/

https://goodbyelyme.com/blog/mycoplasma_essential_oils/