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:: Volume 2, Issue 1 (April 2018) ::
J Health Sci Technol 2018, 2(1): 2-8 Back to browse issues page
Fabrication of antibacterial nanofiber substrate using polyethylene terephthalate and copper nitrate to determine the efficiency of submicron particle filtration
Shohreh Moradi , Mohammad Ranjbarian, Fahimeh Goli , Akbar Gazmeh, Ascar Sadighzadeh *
Iran Atomic Energy Organization, Tehran University of Medical Sciences, Tehran, Iran , sadighzadeh@yahoo.com
Abstract:   (1391 Views)
Background: Surgical masks are usually used to protect surgeons from the transmission of disease and germs, as well as preventing the transmission of infectious agents to the environment and others. The mask may not be a suitable environment for the growth and reproduction of microbes. Regarding this, the present study aimed to investigate the feasibility of making antibacterial mask substrate providing high efficiency and low pressure drop.
Materials and Methods: For the purpose of the study, nanofiber substrates containing variable amounts of polyethylene terephthalate and copper nitrate were produced using an electrospinning device. The efficiency and pressure drop of antibacterial nanofiber substrates were measured at a particle size range of 260 nm to 1.6 µ.  Measurement of the particle number density was accomplished by placing two condensation particle counters on both sides of the filter.
Results: Examination of the scanning electron microscope images revealed that the optimal sample contained 25% polymer and 1.5% copper nitrate and had the best morphology at 16 kV. The samples were subjected to electrospinning at different times to examine their efficiency and pressure drop. As the electrospinning time increased from 15 to 60 min, the substrates became thicker, and consequently their efficiencies increased from 13% to 94%; furthermore, the pressure drop increased from 10 to 20 psi. Electrospinning of 60 min resulted in the highest quality factor.
Conclusion: As the findings indicated, with increasing of electrospinning time, the efficiency of the substrates will be increased and the particle penetration rate of the substrates will be reduced, which is due to increased thickness of substrates by increasing the electrospinning time.
 
Keywords: Electrospinning, Nanofibers, Efficiency, Pressure drop, Quality factor
Full-Text [PDF 1188 kb]   (438 Downloads)    
Type of Study: Original Article | Subject: Occupational and Industrial Health
Received: 2017/12/1 | Accepted: 2018/04/1 | Published: 2018/04/10
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Moradi S, Ranjbarian M, Goli F, Gazmeh A, Sadighzadeh A. Fabrication of antibacterial nanofiber substrate using polyethylene terephthalate and copper nitrate to determine the efficiency of submicron particle filtration. J Health Sci Technol. 2018; 2 (1) :2-8
URL: http://jhst.bums.ac.ir/article-1-70-en.html


Volume 2, Issue 1 (April 2018) Back to browse issues page
مجله علوم و تکنولوژی بهداشت Journal of Health Sciences and Technology
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