| http://www.w3.org/ns/prov#value | - When the core is a polymeric region that is water soluble, suitable polymers that may be used include, but are not limited to, polyethers, for example polyalkylene oxides such as polyethylene glycol (???PEG???), polyethylene oxide (???PEO???), polyethylene oxide-co-polypropylene oxide (???PPO???), co-polyethylene oxide block or random copolymers; polyvinyl alcohol (???PVA???); poly(vinyl pyrrolidi
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