Fig. 5From: Biosynthesis, characterization of PLGA coated folate-mediated multiple drug loaded copper oxide (CuO) nanoparticles and it’s cytotoxicity on nasopharyngeal cancer cell linesin vitro release of drugs: 5a In pH 4.5; 5b In pH 7.4. In the acidic pH mimicking tumor microenvironment, the ability to release higher amounts of drugs is seen for longer spell of time by CD-3Back to article page