About: Characterization of spray dried chitosan-TPP microparticles formed by two- and three-fluid nozzles     Goto   Sponge   NotDistinct   Permalink

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  • Chitosan microparticles cross-linked by tri-polyphosphate (TPP) anions have been prepared by spray drying. Two different cross-linking methods have been employed ? ex-situ cross-linking whereby aqueous solution of cross-linked chitosan nanoparticles has been spray-dried by a two-fluid nozzle, and a novel in-situ cross-linking method, whereby solutions of chitosan and TPP have been fed to a three-fluid nozzle and cross-linking occurred within individual droplets. The size and morphology of the resulting microparticles have been characterised and their dependence on the cross-linking ratio and the initial chitosan concentration determined. Particles produced by the three-fluid nozzle were found to have favourable properties in terms of stability in aqueous media and they allow the use of higher chitosan concentrations, which makes them suitable for microencapsulation applications.
  • Chitosan microparticles cross-linked by tri-polyphosphate (TPP) anions have been prepared by spray drying. Two different cross-linking methods have been employed ? ex-situ cross-linking whereby aqueous solution of cross-linked chitosan nanoparticles has been spray-dried by a two-fluid nozzle, and a novel in-situ cross-linking method, whereby solutions of chitosan and TPP have been fed to a three-fluid nozzle and cross-linking occurred within individual droplets. The size and morphology of the resulting microparticles have been characterised and their dependence on the cross-linking ratio and the initial chitosan concentration determined. Particles produced by the three-fluid nozzle were found to have favourable properties in terms of stability in aqueous media and they allow the use of higher chitosan concentrations, which makes them suitable for microencapsulation applications. (en)
Title
  • Characterization of spray dried chitosan-TPP microparticles formed by two- and three-fluid nozzles
  • Characterization of spray dried chitosan-TPP microparticles formed by two- and three-fluid nozzles (en)
skos:prefLabel
  • Characterization of spray dried chitosan-TPP microparticles formed by two- and three-fluid nozzles
  • Characterization of spray dried chitosan-TPP microparticles formed by two- and three-fluid nozzles (en)
skos:notation
  • RIV/60461373:22340/13:43893582!RIV14-MSM-22340___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • S
http://linked.open...iv/cisloPeriodika
  • May 2013
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 65107
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22340/13:43893582
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Core?shell particle; Zeta potential; Swelling; Biopolymer; Encapsulation; Spray drying (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [16ECCF51A81F]
http://linked.open...i/riv/nazevZdroje
  • Powder Technology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 240
http://linked.open...iv/tvurceVysledku
  • Štěpánek, František
  • Kašpar, Ondřej
  • Jakubec, Martin
http://linked.open...ain/vavai/riv/wos
  • 000318388200006
issn
  • 0032-5910
number of pages
http://bibframe.org/vocab/doi
  • 10.1016/j.powtec.2012.07.010
http://localhost/t...ganizacniJednotka
  • 22340
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