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Showing 1 to 8 of 8 for “"PGAA"”.
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COMPARISON OF NEUTRON NON DESTRUCTIVE METHOD AND CONVENTIONAL CHEMICAL METHOD FOR CHLORIDE MEASUREMENT IN CONCRETE
… method, Prompt Gamma Activation Analysis (PGAA) against the destructive wet chemistry method ASTM C-1152 currently used to determine the chloride concentration in concrete. Two modes of PGAA operation were tested. One was to use PGAA with a slit collimator to measure the chlorides at 2 mm …
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Cationic Glycopolymers for DNA Delivery: Cellular Internalization Mechanisms and Biological Characterization
… mechanisms of poly(glycoamidoamine) (PGAA) DNA delivery polymers were investigated. Polymer:DNA complexes interact with cell-surface glycosaminoglycans (GAGs) in a manner independent of electrostatic interactions. Desulfation and GAG removal leads to decreased uptake. Individual …
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Régészeti obszidiánok forrásterületének meghatározása
… (NAA, ICP-OES, ICP-AES, LA-ICP-MS, PIGE, PIXE, PGAA), különös tekintettel a vizsgálati eredményeknek a proveniencia vizsgálatokban való felhasználhatóságukat. Végül néhány konkrét vizsgálaton keresztül, irodalmi példák segítségével bemutattam a fő- és nyomelemek, elempárok és hányadosok olyan …
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Understanding Non-viral Nucleic Acid Delivery Vehicles with Different Charge Centers and Degradation Profiles
… transfection efficiency. Poly(glycoamidoamine)s (PGAAs) contained different carbohydrate and secondary amine moieties and showed high transfection efficiency to different cell lines in a nontoxic manner. The "proton sponge hypothesis" has attempted to relate the buffering capacity to endosomal …
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Modification and Translocation of the Biofilm Exopolysaccharide Poly-β(1,6)-N-acetyl-D-glucosamine
… being handed off to the outer membrane porin PgaA for export. BpsB is similar in structure and function to PgaB, but exhibits three mechanistic differences. First, BpsB does not require the C-terminal domain for deacetylation. Second, BpsB is not required for the export of PNAG, but is …
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Evading Innate and Adaptive Immunity During Adenovirus Cell Entry
… Mutation of the pVI-PPxY motif (Ad-WT) to PGAA (Ad-M1) does not impair viral endosomal membrane rupture but results in reduced specific infectivity. We show that the PPxY motif mediates microtubule-dependent egress of Ad5 capsids from ruptured membranes. Further, the defect in Ad-M1 nuclear …
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Identifying short-lived fission products by delayed gamma-ray emission
samples were irradiated for approximately 45 minutes to allow for the saturation of fission products. The first method used the beam port shutter and allowed for longer counting and irradiation times, but was unsuitable for examining fission products with half-lives below 10 seconds. The on/off …
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Non-covalent Intermolecular Interactions in Polymer Design: Segmented Copolymers to Non-viral Gene Delivery Vectors
… the affinity of cationic poly(glcoamidoamine) (PGAA)-pDNA complexes, quartz crystal microbalance was employed to measure the mass of GAGs that associated with a polyplex monolayer. Affinity of six different GAGs that varied in the charge density were measured for polyplexes formed with …