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poly-y-glutamic acid(y-PGA) is a natural, high molecular, linear-polypeptide which mainly produced from microbes, such as Bacillus.
The cross-linking of y-PGA:
Hydrogels of y-PGA can be prepared by chemical (PEG, polysaccharide etc.) and physical(UV, gamma irradiation and electron beam etc.) cross-linking process.
The Obsesswell™ is fabricated by physical reaction of electron-beam only and there are no risks of residual toxicity.
During the processing of Obsesswell™, E-beam energy of high energy produce a reduction of endotoxin and sterilization result.
Obsesswell™ reveals a multi-baglike structure that is capable of enhanced absorption of moisture.
Free radicals produced by electron-beam irradiation promote cross-linking between monomeric units of y-PGA.
- Activates a natural moisturizing factor, such as pyrolidone carboxylic acid (PCA) and/or urocanic acid.