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Effect of Free Volume on Curcumin Release from Various Polymer-Based Composite Films Analyzed Using Positron Annihilation Lifetime Spectroscopy

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dc.contributor.authorTAV, CUMALİ
dc.contributor.authorsRhim, Jong-Whan; Kuzeci, Saygin; Roy, Swarup; Akti, Necmettin; Tav, Cumali; Yahsi, Ugur
dc.date.accessioned2022-03-14T09:53:24Z
dc.date.available2022-03-14T09:53:24Z
dc.date.issued2021-09-29
dc.description.abstractThis work reports the effects of free volume on curcumin release in various polymer-based composite films. Curcumin-reinforced biocomposite films were fabricated with natural biopolymers (carrageenan and chitosan) and bioplastics (poly(lactide) (PLA) and poly (butylene adipate-co-terephthalate) (PBAT)) via the solvent casting method. The curcumin release test was performed using an aqueous medium, and it was found that it was released the fastest in the carrageenan film, followed by the chitosan, PLA, and PBAT films, presumably owing to the dissimilarity of the polymer matrix. The free volume of the polymer films was determined using positron annihilation lifetime spectroscopy (PALS) to understand the release phenomena of curcumin. The free volume fraction was varied and reliant on the type of polymer, with the highest in the PBAT-based film followed by the PLA-, chitosan-, and carrageenan-based films. The free volume method helps analyze the release of bioactive compounds in a polymer matrix and may help to achieve a better understanding of the release of bioactive compounds.</p>
dc.identifier.doi10.3390/ma14195679
dc.identifier.eissn1996-1944
dc.identifier.pubmed34640075
dc.identifier.urihttps://hdl.handle.net/11424/243556
dc.identifier.wosWOS:000709539200001
dc.language.isoeng
dc.publisherMDPI
dc.relation.ispartofMATERIALS
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectpositron annihilation lifetime spectroscopy (PALS)
dc.subjectfree volume
dc.subjectcurcumin
dc.subjectpolymers
dc.subjectcomposite film
dc.subjectrelease
dc.subjectIONIC-CONDUCTIVITY
dc.subjectVACANCY BEHAVIOR
dc.subjectHOLE FRACTION
dc.subjectDEPENDENCE
dc.subjectTERMS
dc.subjectTEMPERATURE
dc.subjectVISCOSITY
dc.subjectLINKING
dc.subjectBARRIER
dc.subjectPP
dc.titleEffect of Free Volume on Curcumin Release from Various Polymer-Based Composite Films Analyzed Using Positron Annihilation Lifetime Spectroscopy
dc.typearticle
dspace.entity.typePublication
local.avesis.idc44731b3-ea3b-4373-ba99-b80c4b57b68c
local.import.packageSS16
local.indexed.atWOS
local.indexed.atSCOPUS
local.indexed.atPUBMED
local.journal.articlenumber5679
local.journal.numberofpages11
oaire.citation.issue19
oaire.citation.titleMATERIALS
oaire.citation.volume14
relation.isAuthorOfPublicationb4f2fcd0-ebd4-41c4-9a54-32df526acbd5
relation.isAuthorOfPublication.latestForDiscoveryb4f2fcd0-ebd4-41c4-9a54-32df526acbd5

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