| http://www.w3.org/ns/prov#value | - PH-sensitive polymers may also be synthesized as polypeptides from amino acids (e.g., polylysine or polyglutamic acid) or derived from naturally- occurring polymers such as proteins (e.g., lysozyme, albumin, casein, etc.), or polysaccharides (e.g., alginic acid, hyaluronic acid, carrageenan, chitosan, carboxymethyl cellulose, etc.) or nucleic acids, such as DNA. pH-responsive polymers usually cont
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