Antimicrobial Activity of Silver Ions Released from Zeolites Immobilized on Cellulose Nanofiber Mats

ACS Applied Materials & Interfaces
Katrina A RiegerJessica D Schiffman

Abstract

In this study, we exploit the high silver ion exchange capability of Linde Type A (LTA) zeolites and present, for the first time, electrospun nanofiber mats decorated with in-house synthesized silver (Ag(+)) ion exchanged zeolites that function as molecular delivery vehicles. LTA-Large zeolites with a particle size of 6.0 μm were grown on the surface of the cellulose nanofiber mats, whereas LTA-Small zeolites (0.2 μm) and three-dimensionally ordered mesoporous-imprinted (LTA-Meso) zeolites (0.5 μm) were attached to the surface of the cellulose nanofiber mats postsynthesis. After the three zeolite/nanofiber mat assemblies were ion-exchanged with Ag(+) ions, their ion release profiles and ability to inactivate Escherichia coli (E. coli) K12 were evaluated as a function of time. LTA-Large zeolites immobilized on the nanofiber mats displayed more than an 11 times greater E. coli K12 inactivation than the Ag-LTA-Large zeolites that were not immobilized on the nanofiber mats. This study demonstrates that by decorating nanometer to micrometer scale Ag(+) ion-exchanged zeolites on the surface of high porosity, hydrophilic cellulose nanofiber mats, we can achieve a tunable release of Ag(+) ions that inactivate bacteria faster and are mo...Continue Reading

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Citations

Jun 14, 2016·ACS Applied Materials & Interfaces·María Emilia VillanuevaGuillermo Javier Copello
Feb 7, 2017·Expert Opinion on Drug Discovery·Semih CalamakKezban Ulubayram
Jul 20, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Fernanda D GuerraFrank Alexis
Feb 13, 2018·Progress in Biomaterials·A Medina-RamírezG García-Ruiz
Mar 13, 2021·Research : a Science Partner Journal·Lulu BaiWenshuai Chen
Mar 14, 2020·Nano-micro Letters·Mandana TavakolianTheo G M van de Ven
Aug 31, 2017·ACS Omega·Saranyoo SornkamnerdTatsuo Kaneko
May 17, 2017·Industrial & Engineering Chemistry Research·Kerianne M DoboszJessica D Schiffman
Feb 11, 2019·ACS Biomaterials Science & Engineering·Alejandro Alonso-DíazAnna Laromaine
May 24, 2018·ACS Applied Materials & Interfaces·Feyza Dundar ArisoyJames J Watkins
Dec 20, 2019·Journal of the American Chemical Society·Mengwei YuanMercouri G Kanatzidis

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