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dc.contributor.authorDul, M.*
dc.contributor.authorPaluch, Krzysztof J.*
dc.contributor.authorKelly, H.*
dc.contributor.authorHealy, A.M.*
dc.contributor.authorSasse, A.*
dc.contributor.authorTajber, L.*
dc.date.accessioned2016-09-21T17:15:46Z
dc.date.available2016-09-21T17:15:46Z
dc.date.issued2015-06-05
dc.identifier.citationDul M, Paluch KJ, Kelly H, Healy AM, Sasse A and Tajber L (2015) Self-assembled carrageenan/protamine polyelectrolyte nanoplexes-Investigation of critical parameters governing their formation and characteristics. Carbohydrate Polymers. 123: 339-349.
dc.identifier.urihttp://hdl.handle.net/10454/9334
dc.descriptionYesen
dc.description.abstractThe aim of this work was to investigate the feasibility of cross-linker free polyelectrolyte complex formation at the nanoscale between carrageenan (CAR) and protamine (PROT). The properties of CAR/PROT nanoparticles (NPs) were dependent on the carrageenan type: kappa (KC), iota (IC) and lambda (LC), concentration of components, addition of divalent cations, weight mixing ratio (WMR) of constituents and mode of component addition. In the case of 0.1% w/v solutions, IC-based NPs had the smallest particle sizes (100-150nm) and low polydispersity indices (0.1-0.4). A decrease in the solution concentration from 0.1% to 0.05% w/v enabled the formation of KC/PROT NPs. All carrageenans exhibited the ability to form NPs with surface charge ranging from -190 to 40mV. The inclusion of divalent cations caused an increase in the particle size and zeta potential. Infrared analysis confirmed the presence of a complex between CAR and PROT and showed that IC chains undergo structural changes when forming NPs. Colloidal stability of NPs was related to the initial surface charge of particles and was time- and pH-dependent. IC was found to be the most suitable type of CAR when forming nanoplexes with PROT.
dc.relation.isreferencedbyhttp://dx.doi.org/10.1016/j.carbpol.2015.01.066
dc.subjectCalcium
dc.subject; Carrageenan
dc.subject; Electrolytes
dc.subject; Ions
dc.subject; Microscopy
dc.subject; Nanoparticles
dc.subject; Particle size
dc.subject; Protamines
dc.subject; Spectroscopy; Fourier transform infrared
dc.subject; Zinc
dc.subject; Dynamic light scattering
dc.subject; Infrared spectroscopy
dc.subject; Polyelectrolyte complexes
dc.titleSelf-assembled carrageenan/protamine polyelectrolyte nanoplexes-Investigation of critical parameters governing their formation and characteristics
dc.status.refereedYesen
dc.date.Accepted2015-01-29
dc.date.application201502-07
dc.typeArticle
dc.type.versionAccepted manuscripten
refterms.dateFOA2018-07-25T14:10:12Z


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