Evaluation of antibacterial and antiviral barrier function of the conceptual model of a pneumatic helmet


Keywords: pneumatic helmet, antibacterial protection, antiviral protection, aid for respiratory protection, bacteriophages.

Abstract

Annotation. The global pandemic has necessitated the development of new respiratory protective equipment that seems to combine reliability and ergonomics. The article tests an innovative conceptual model of a pneumatic helmet with a laminar air supply system for its permeability to bacteria Micrococcus luteus and antistaphylococcal bacteriophages. The latter were fed in the form of an aerosol to the external filter of the working device with subsequent titration and seeding. Evaluation of bacterial infection is performed by counting the units that form colonies by multiplying the above indicator by the degree of dilution. The presence of bacteriophages and their number was determined by the Grace method with the calculation of plaque-forming units in the culture of Staphylococcus aureus. Statistical processing of the results was performed on a personal computer Intel Core i3 using one- and multi-factor analysis of variance (licensed software packages Microsoft Office 2016 and Statistica 10). In the full and partial configuration of the device (if there is only an external or internal filter), the penetration of microorganisms into the internal space is not detected. The results of the study confirmed the reliability of the protection system for 6 hours of continuous operation, which makes the conceptual model of a pneumatic helmet a more ergonomic alternative to the usual means of respiratory protection.

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Published
2021-09-23
How to Cite
Klishch, I. M., Kovalchuk, A. O., Medvid, I. I., Pavlyshyn, A. V., & Klymnyuk, S. I. (2021). Evaluation of antibacterial and antiviral barrier function of the conceptual model of a pneumatic helmet. Reports of Vinnytsia National Medical University, 25(3), 466-468. https://doi.org/https://doi.org/10.31393/reports-vnmedical-2021-25(3)-21