PMID- 31147044 OWN - NLM STAT- MEDLINE DCOM- 20191220 LR - 20191220 IS - 1873-0191 (Electronic) IS - 0928-4931 (Linking) VI - 102 DP - 2019 Sep TI - Efficient nanoparticles removal and bactericidal action of electrospun nanofibers membranes for air filtration. PG - 718-729 LID - S0928-4931(18)33199-0 [pii] LID - 10.1016/j.msec.2019.04.094 [doi] AB - Human exposure to air pollution and especially to nanoparticles is increasing due to the combustion of carbon-based energy vectors. Fibrous filters are among the various types of equipment potentially able to remove particles from the air. Nanofibers are highly effective in this area; however, their utilization is still a challenge due to the lack of studies taking into account both nanoparticle collection efficiency and antibacterial effect. The aim of this work is to produce and evaluate novel silver/polyacrylonitrile (Ag/PAN) electrospun fibers deposited on a nonwoven substrate to be used as air filters to remove nanoparticles from the air and also showing antibacterial activity. In order to determine the optimum manufacturing conditions, the effects of several electrospinning process parameters were analyzed such as solution concentration, collector to needle distance, flow rate, voltage, and duration. Ag/PAN nanofibers were characterized by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), Fourier Transform Infra-Red spectroscopy (FTIR), Energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and Scanning Electron Microscopy (SEM). In addition, filtration performances were determined by measuring the pressure drop and collection efficiency of sodium chloride (NaCl) aerosol particles (9 to 300 nm diameters) using Scanning Mobility Particle Sizers (SMPS). Filters with high filtration efficiency ( approximately 100%) and high-quality factor ( approximately 0.05 Pa(-1)) were obtained even adding different concentrations of Ag nanoparticles (AgNPs) to PAN nanofibers. The resultant Ag/PAN nanofibers showed excellent antibacterial activity against 10(4) CFU/mL E. coli bacteria. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Bortolassi, Ana Claudia Canalli AU - Bortolassi ACC AD - Universidade Federal de Sao Carlos - UFSCar, Departamento de Engenharia Quimica, Rodovia Washington Luiz, km 235 - SP 310, 13565-905 Sao Carlos, Brazil. FAU - Nagarajan, Sakthivel AU - Nagarajan S AD - Institut Europeen des Membranes, IEM - UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France. FAU - de Araujo Lima, Bruno AU - de Araujo Lima B AD - Universidade Federal de Sao Carlos - UFSCar, Departamento de Engenharia Quimica, Rodovia Washington Luiz, km 235 - SP 310, 13565-905 Sao Carlos, Brazil. FAU - Guerra, Vadila Giovana AU - Guerra VG AD - Universidade Federal de Sao Carlos - UFSCar, Departamento de Engenharia Quimica, Rodovia Washington Luiz, km 235 - SP 310, 13565-905 Sao Carlos, Brazil. FAU - Aguiar, Monica Lopes AU - Aguiar ML AD - Universidade Federal de Sao Carlos - UFSCar, Departamento de Engenharia Quimica, Rodovia Washington Luiz, km 235 - SP 310, 13565-905 Sao Carlos, Brazil. FAU - Huon, Vincent AU - Huon V AD - Laboratoire de Mecanique et Genie Civil, Universite de Montpellier, CNRS, 34090 Montpellier, France. FAU - Soussan, Laurence AU - Soussan L AD - Institut Europeen des Membranes, IEM - UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France. FAU - Cornu, David AU - Cornu D AD - Institut Europeen des Membranes, IEM - UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France. FAU - Miele, Philippe AU - Miele P AD - Institut Europeen des Membranes, IEM - UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France. FAU - Bechelany, Mikhael AU - Bechelany M AD - Institut Europeen des Membranes, IEM - UMR 5635, ENSCM, CNRS, Univ Montpellier, Montpellier, France. Electronic address: mikhael.bechelany@umontpellier.fr. LA - eng PT - Journal Article DEP - 20190430 PL - Netherlands TA - Mater Sci Eng C Mater Biol Appl JT - Materials science & engineering. C, Materials for biological applications JID - 101484109 RN - 0 (Acrylic Resins) RN - 0 (Anti-Bacterial Agents) RN - 0 (Membranes, Artificial) RN - 25014-41-9 (polyacrylonitrile) RN - 3M4G523W1G (Silver) SB - IM MH - Acrylic Resins/chemistry MH - *Air MH - Anti-Bacterial Agents/pharmacology MH - Escherichia coli/drug effects MH - Filtration/*methods MH - *Membranes, Artificial MH - Nanofibers/*chemistry/ultrastructure MH - Nanoparticles/*chemistry/ultrastructure MH - Nanotechnology/*methods MH - Permeability MH - Pressure MH - Silver/pharmacology OTO - NOTNLM OT - Air filtration OT - Bactericidal material OT - Electrospinning OT - Nanofibers OT - Silver EDAT- 2019/05/31 06:00 MHDA- 2019/12/21 06:00 CRDT- 2019/06/01 06:00 PHST- 2018/10/18 00:00 [received] PHST- 2019/04/26 00:00 [revised] PHST- 2019/04/29 00:00 [accepted] PHST- 2019/06/01 06:00 [entrez] PHST- 2019/05/31 06:00 [pubmed] PHST- 2019/12/21 06:00 [medline] AID - S0928-4931(18)33199-0 [pii] AID - 10.1016/j.msec.2019.04.094 [doi] PST - ppublish SO - Mater Sci Eng C Mater Biol Appl. 2019 Sep;102:718-729. doi: 10.1016/j.msec.2019.04.094. Epub 2019 Apr 30.