Published in: فصلنامه روشهای تصفیه محیط، دوره: 7، شماره: 3
COI code: JR_JETT-7-3_024
Paper Language: English
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Authors Physical Properties and Stability of Plasmid DNA-Loaded Chitosan-TPP NanoparticleS. R. Naeimi Torshizi - Department of cellular and molecular, Nour Danesh Institute of Higher Education, Mymeh, Isfahan
H Ofoghi - Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
A Jangjou - Department of Emergency Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
S. Taghizadeh - Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
M Kianirad - Department of Biotechnology, Iranian Research Organization for Science and Technology, Tehran, Iran
Abstract:Chitosan (CS) is a biodegradable natural polymer that has shown potential for gene delivery. Although a number of in vitro studies showed that chitosan and its derivatives have emerged as promising vehicles for efficient non-viral gene and plasmid DNA (pDNA) vaccine delivery, the stability of chitosan/plasmid nanoparticle remain insufficient. In the present study, ionically crosslinked chitosan nanoparticles were formulated with plasmid DNA using the ionic gelation technique with sodium tripolyphospate (TPP) as a crosslinking agent. We investigate the stability of chitosan/pDNA nanoparticles which was synthesized by this method. Optimization study showed that chitosan to TPP ratios of 1:0.4(w/w) results in the reproducible formation of nanoparticles with good production yields. SEM and DLS analyses revealed a circular shape of the CS/TPP nanoparticles with an average size diameter of 173 nm. The zeta potential of the nanoparticles was + 10.8 mv. In vitro study of pDNA release from CS/TPP nanoparticles revealed no DNA release following incubation of chitosan/pDNA nanoparticles for up to 1 month, in mediums of PBS and acetic acid at pH 4 and pH 7.4. According to the results, ionically crosslinked CS/TPP nanoparticles have the potential to be used as a biocompatible non-viral gene delivery system with strong stability.
Keywords:Chitosan, Gene delivery, Nanoparticles, Ionic gelation
COI code: JR_JETT-7-3_024
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Torshizi, S. R. Naeimi; H Ofoghi; A Jangjou; S. Taghizadeh & M Kianirad, 2019, Physical Properties and Stability of Plasmid DNA-Loaded Chitosan-TPP Nanoparticle, Journal of Environmental Treatment Techniques 7 (3), https://www.civilica.com/Paper-JR_JETT-JR_JETT-7-3_024.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Torshizi, S. R. Naeimi; H Ofoghi; A Jangjou; S. Taghizadeh & M Kianirad, 2019)
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