Hyaluronic acid is a large molecular polysaccharide extracted from bovine vitreous humor by Columbia University ophthalmology professors Meyer and Palmer in 1934. Its aqueous solution is transparen...
Polyethylenimine(PEI) is a water-soluble polymer. The concentration in water of commercial products is usually 20% to 50%. PEI is polymerized from ethylene imide monomer. It is a cationic polymer t...
What is hydroxypropyl methyl cellulose?
Hydroxypropyl methyl cellulose (HPMC), also known as hydroxypropyl methylcellulose, cellulose hydroxypropyl methyl ether, cellulose, 2-hydroxypropylmethyl et...
In the past, due to the backward medical knowledge and limited conditions, people had little awareness of tooth protection, and many people did not understand why teeth should be protected. Teeth a...
What Is Polyvinylpyrrolidone (PVP)?
Polyvinylpyrrolidone, abbreviated as PVP. It is used as an adjuvant, additive, and excipient in multiple fields such as medicine, textile, chemical, beverage, an...
“Low carbon living” has become a mainstream topic in the new era. In recent years, green environmental protection, energy conservation, and emission reduction have gradually entered the public̵...
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