ProductDescription
1,2-Distearoyl-sn-glycero-3-phosphoethanolamine(DSPE)-poly(ethyleneglycol)withconjugatedorthopyridyldisulfide(OPSSorPDP)(DSPE-PEG-OPSS)isalinearheterobifunctionalPEGylationreagentwithaDSPEphospholipidandaorthopyridyldisulfide.DSPE-PEG-OPSS,isan18carbonphospholipidPEGconjugatewhichhasbothhydrophilicityandhydrophobility.Itisausefulself-assemblingreagenttopreparePEGylatedliposomeormicellewhilealsoprovidingathiolorcysteinereactivemaleimidegroup.Itisoftenusedintargeteddrugdeliverywiththelipidbilayertoimprovedrugsolubility,thePEGtoprovidestealthproperty,extendcirculationhalf-lifeandreducenon-specificproteinbindingorcelladhesion,andthereactivemaleimidetobioconjugatetargetingmoleculesincludingantibody,aptamer,protein,andpeptide.Orthopyridyldisulfideorpyridyldithiofunctionalgroup聽canselectivelyreactswithfreethiol,SH,sulfhydrylormercaptotoformaoxidation,reductionreversIBLedisulfidebond.PegylationofphospholipidssignificantlyimprovesthebloodcirculationtimeandstABIlityforencapsulateddrugs.