Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/62648
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Song, Xinyu | por |
dc.contributor.author | Cvelbar, Uros | por |
dc.contributor.author | Strazar, Petra | por |
dc.contributor.author | Vossebein, Lutz | por |
dc.contributor.author | Zille, Andrea | por |
dc.date.accessioned | 2019-12-13T12:22:22Z | - |
dc.date.available | 2019-12-13T12:22:22Z | - |
dc.date.issued | 2020 | - |
dc.identifier.issn | 1944-8244 | por |
dc.identifier.uri | https://hdl.handle.net/1822/62648 | - |
dc.description.abstract | The physico-chemical interactions between alkyldimethylbenzylammonium chloride (ADBAC) as disinfectant and 3 commercial wiping materials made from 100% polyester (PET), 55%cellulose/45%PET (blend) and 100% cellulose were investigated after treatment with dielectric barrier discharge (DBD) plasma at atmospheric pressure. Wipe material type in terms of cellulose content, liquor ratio and immersion time demonstrated a significant influence on the adsorption of ADBAC. The higher the content of cellulose in the material, the higher is the adsorption of ADBAC active ingredient. The antimicrobial tests confirm that the ADBAC adsorbed on pure cellulosic material are inactivated losing their bactericidal activity, while 100% PET and blend wipes showed good antimicrobial efficacy. XPS analysis demonstrates the strong interactions of ADBAC with the plasma-generated oxygen species in the polyester-containing wipes surface. Unexpectedly, plasma-treated blend wipe displays a reverse antimicrobial effect compared to untreated samples, performing better in Gram-negative bacteria. The best result was obtained in the plasma treated 100% polyester wipe showing an improved of about 20% in Gram-positive bacteria and an excellent performance in Gram-negative ones. This method allows the unprecedented use of pure polyester as effective wiping material for surface disinfection eliminating the major drawback of pure polyester, its high hydrophobicity. | por |
dc.description.sponsorship | This work was funded by European Regional Development funds (FEDER) through the Competitiveness and Internationalization Operational Program (POCI) – COMPETE and by National Funds through Fundação para a Ciência e Tecnologia (FCT)—under the project POCI- 01-0145-FEDER-007136 and UID/CTM/00264/2019. Xinyu Song (SFRH/BD/130028/2017) acknowledges FCT, Portugal, for its doctoral grant financial support. Andrea Zille also acknowledges financial support of the FCT through an Investigator FCT Research contract (IF/00071/2015) and the project PTDC/CTM-TEX/28295/2017 financed by FCT, FEDER and POCI in the frame of the Portugal 2020 program. | por |
dc.language.iso | eng | por |
dc.publisher | American Chemical Society | por |
dc.relation | UID/CTM/00264/2019 | por |
dc.relation | SFRH/BD/130028/2017 | por |
dc.relation | PTDC/CTM-TEX/28295/2017 | por |
dc.rights | openAccess | por |
dc.subject | wipes | por |
dc.subject | nonwoven | por |
dc.subject | textile | por |
dc.subject | disinfectant | por |
dc.subject | plasma | por |
dc.subject | quaternary ammonium salt | por |
dc.subject | antimicrobial | por |
dc.title | Antimicrobial efficiency and surface interactions of quaternary ammonium compound absorbed on Dielectric Barrier Discharge (DBD) plasma treated fiber-based wiping materials | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
oaire.citationStartPage | 298 | por |
oaire.citationEndPage | 311 | por |
oaire.citationIssue | 1 | por |
oaire.citationVolume | 12 | por |
dc.identifier.eissn | 1944-8252 | por |
dc.identifier.doi | 10.1021/acsami.9b18746 | por |
dc.identifier.pmid | 31816226 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | ACS Applied Materials & Interfaces | por |
Aparece nas coleções: | DET/2C2T - Artigos em revistas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Paper 1 ACS-R1 - Final.pdf | 9,75 MB | Adobe PDF | Ver/Abrir |