Blood Circulation TimePolyethylene GlycolsBlood CirculationDrug CarriersLiposomesTissue DistributionDrugs, Chinese HerbalNanoparticlesNanocapsulesDrug Delivery SystemsParticle SizeFocal InfectionNanomedicineMedicine, Chinese TraditionalExtracorporeal CirculationInjections, Intravenous2,3-Diketogulonic AcidPolymersHistory, 17th CenturyMythologyMetabolic Clearance RateRetinal VesselsPhosphatidylethanolaminesTime FactorsQiMice, Inbred BALB C