نتایج جستجو برای: linear polyethyleneimine
تعداد نتایج: 483668 فیلتر نتایج به سال:
Methods are described for the separation of oligodeoxyribonucleotides and oligoribonucleotides by chromatography on thin layers of cellulose impregnated with polyethyleneimine.
BACKGROUND Cationic copolymers consisting of polycations linked to nonionic amphiphilic block polymers have been evaluated as nonviral gene delivery systems, and a large number of different polymers and copolymers of linear, branched, and dendrimeric architectures have been tested in terms of their suitability and efficacy for in vitro and in vivo transfection. However, the discovery of new pot...
A cross-linked polyethyleneimine polymer containing the[ZnWZn2(H2O)2(ZnW9O34)2] poly-oxometalate was prepared from branched polyethyleneimine(Mw ) 600), the polyoxometalate, and an-octylamine-epichlorohydrin cross-linking reagent. This catalytic assembly was active for the selectiveoxidation of 2-alkanols to 2-alkanones with aqueous H2O2 with reactions presumably occurring a...
We introduce Dynamic Constitutional Frameworks (DCFs), macromolecular structures that efficiently bind and transfect double stranded DNA. DCFs are easily synthesizable adaptive 3D networks consisting of core connection centres reversibly linked via labile imine bonds both to linear polyethyleneglycol (PEG, ∼1500 Da) and to branched polyethyleneimine (bPEI, ∼800 Da). DCFs bind linear and plasmid...
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Intravenously injected plasmid DNA (pDNA) complexed with cationic liposome (lipoplexes) caused NF-kappaB-mediated cytokine production from macrophages, induced by CpG sequence in the pDNA. We have reported that cytokine production caused by linear polyethyleneimine (PEI)-pDNA complexes (PEI polyplexes) was much lower than that caused by lipoplexes (Kawakami, S., Ito, Y., Charoensit, P., Yamashi...
The key issues, associated with nanocarriers for small interfering RNAs (siRNAs), are their poor stability and lack of tumor targetability in vivo. To address these issues, we developed gold-installed polyethyleneimine/siRNA complexes with a corona of PEGylated hyaluronic acid.
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