Scalable Production Of Highly Concentrated Chitosan/tpp Nanoparticles In Different Phs And Evaluation Of The In Vitro Transfection Efficiency

dc.creatorSipoli C.C.
dc.creatorSantana N.
dc.creatorShimojo A.A.M.
dc.creatorAzzoni A.
dc.creatorde la Torre L.G.
dc.date2015
dc.date2015-06-25T12:54:22Z
dc.date2015-11-26T15:16:48Z
dc.date2015-06-25T12:54:22Z
dc.date2015-11-26T15:16:48Z
dc.date.accessioned2018-03-28T22:26:33Z
dc.date.available2018-03-28T22:26:33Z
dc.identifier
dc.identifierBiochemical Engineering Journal. Elsevier, v. 94, n. , p. 65 - 73, 2015.
dc.identifier1369703X
dc.identifier10.1016/j.bej.2014.11.008
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84913572999&partnerID=40&md5=bbb18c321956a2cfd852cbbffae483c8
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/85587
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/85587
dc.identifier2-s2.0-84913572999
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1259321
dc.descriptionChitosan (CHI)entasodium tripolyphosphate (TPP) nanoparticles have been studied extensively for biomedical applications. However, these studies do not attempt to develop a scalable and reproducible process. In this study, we investigated the production of CHI/TPP nanoparticles using a high concentration (5. mg/mL) of chitosan at three different pHs (4, 5 and 5.5) in a scalable batch process using tank reactor with baffles and a cowles impeller. The smallest size was obtained when the pH was 4, but the polydispersity index (PDI) was the highest; the opposite behavior was observed at pH 5.5. CHI/TPP nanoparticles were also studied in terms of physico-chemical stability in two extreme situations: increasing the pH of the CHI/TPP nanoparticles to 7 and adding nanoparticles to PBS buffer (pH 7.4). In both cases, the buffer conditions modulated the nanoparticle properties and time was also an important parameter. Plasmid pVAX1Luc was used for incorporation into CHI/TPP nanoparticles (CHI:TPP 5.8:1 m/m) at 10 and 20% DNA/CHI w/w. The final DNA-loaded nanoparticles ranged in size from 142 to 248. nm and 190 to 254. nm for 10 and 20% DNA, respectively. The final physico-chemical properties and process differences in CHI/TPP nanoparticle production have a small influence on in vitro transfection studies.
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dc.description65
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dc.languageen
dc.publisherElsevier
dc.relationBiochemical Engineering Journal
dc.rightsfechado
dc.sourceScopus
dc.titleScalable Production Of Highly Concentrated Chitosan/tpp Nanoparticles In Different Phs And Evaluation Of The In Vitro Transfection Efficiency
dc.typeArtículos de revistas


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