000118833 001__ 118833
000118833 005__ 20250912141054.0
000118833 0247_ $$2doi$$a10.3390/ma15144742
000118833 0248_ $$2sideral$$a130060
000118833 037__ $$aART-2022-130060
000118833 041__ $$aeng
000118833 100__ $$0(orcid)0000-0003-2672-5790$$aBaselga, M.
000118833 245__ $$aSilver nanoparticles–polyethyleneimine-based coatings with antiviral activity against SARS-CoV-2: a new method to functionalize filtration media
000118833 260__ $$c2022
000118833 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118833 5203_ $$aThe use of face masks and air purification systems has been key to curbing the transmission of SARS-CoV-2 aerosols in the context of the current COVID-19 pandemic. However, some masks or air conditioning filtration systems are designed to remove large airborne particles or bacteria from the air, being limited their effectiveness against SARS-CoV-2. Continuous research has been aimed at improving the performance of filter materials through nanotechnology. This article presents a new low-cost method based on electrostatic forces and coordination complex formation to generate antiviral coatings on filter materials using silver nanoparticles and polyethyleneimine. Initially, the AgNPs synthesis procedure was optimized until reaching a particle size of 6.2 ± 2.6 nm, promoting a fast ionic silver release due to its reduced size, obtaining a stable colloid over time and having reduced size polydispersity. The stability of the binding of the AgNPs to the fibers was corroborated using polypropylene, polyester-viscose, and polypropylene-glass spunbond mats as substrates, obtaining very low amounts of detached AgNPs in all cases. Under simulated operational conditions, a material loss less than 1% of nanostructured silver was measured. SEM micrographs demonstrated high silver distribution homogeneity on the polymer fibers. The antiviral coatings were tested against SARS-CoV-2, obtaining inactivation yields greater than 99.9%. We believe our results will be beneficial in the fight against the current COVID-19 pandemic and in controlling other infectious airborne pathogens. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
000118833 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2020-113963RB-I00$$9info:eu-repo/grantAgreement/ES/DGA-FEDER/B29-17R
000118833 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118833 590__ $$a3.4$$b2022
000118833 592__ $$a0.563$$b2022
000118833 591__ $$aMETALLURGY & METALLURGICAL ENGINEERING$$b20 / 79 = 0.253$$c2022$$dQ2$$eT1
000118833 593__ $$aMaterials Science (miscellaneous)$$c2022$$dQ2
000118833 591__ $$aPHYSICS, APPLIED$$b57 / 160 = 0.356$$c2022$$dQ2$$eT2
000118833 593__ $$aCondensed Matter Physics$$c2022$$dQ2
000118833 591__ $$aPHYSICS, CONDENSED MATTER$$b29 / 67 = 0.433$$c2022$$dQ2$$eT2
000118833 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b174 / 343 = 0.507$$c2022$$dQ3$$eT2
000118833 591__ $$aCHEMISTRY, PHYSICAL$$b84 / 161 = 0.522$$c2022$$dQ3$$eT2
000118833 594__ $$a5.2$$b2022
000118833 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118833 700__ $$aUranga-Murillo, I.
000118833 700__ $$ade Miguel, D.
000118833 700__ $$aArias, M.
000118833 700__ $$0(orcid)0000-0002-6873-5244$$aSebastián, V.$$uUniversidad de Zaragoza
000118833 700__ $$0(orcid)0000-0003-0154-0730$$aPardo, J.$$uUniversidad de Zaragoza
000118833 700__ $$0(orcid)0000-0003-3165-0156$$aArruebo, M.$$uUniversidad de Zaragoza
000118833 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química
000118833 7102_ $$11011$$2566$$aUniversidad de Zaragoza$$bDpto. Microb.Ped.Radio.Sal.Pú.$$cÁrea Inmunología
000118833 773__ $$g15, 14 (2022), 4742 [16 pp]$$pMaterials (Basel)$$tMaterials$$x1996-1944
000118833 8564_ $$s8063439$$uhttps://zaguan.unizar.es/record/118833/files/texto_completo.pdf$$yVersión publicada
000118833 8564_ $$s2730667$$uhttps://zaguan.unizar.es/record/118833/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118833 909CO $$ooai:zaguan.unizar.es:118833$$particulos$$pdriver
000118833 951__ $$a2025-09-12-14:09:35
000118833 980__ $$aARTICLE