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INOVACIJE I IZAZOVI U OBRAZOVANJU I SESTRINSKOJ SKRBI - KNJIGA SAŽETAKA



               Your Home as a Source of Infection




               The aim of the research work Your Home as a Source of Infection, which was carried out by
               the sixth grade students, is to determine which disinfectant removes microorganisms from the
               kitchen table better. For the purposes of the research work, the students used a disinfectant that
               they prepared themselves (UVIB) and a disinfectant with nano particles (NANO). Disinfectant
               UVIB consists of 70% medical alcohol and lemongrass essential oil in a ratio of 100 ml of
               medical alcohol and 5 drops of lemongrass essential oil. Lemongrass essential oil contains
               active substances that act antiseptically and bactericidally. The student's assumption was that
               the  UVIB  disinfectant  would  be  better  at  removing  microorganisms  than  the  nano  particle
               disinfectant.


               Students measured a 10 x 10 cm square on the kitchen table with a ruler. With a sterile swab
               moistened in a sterile physiological solution, they took a sample from the surface of the kitchen
               table and planted it on the nutrient medium of blood agar and left it at room temperature as a
               control. On two other parts of the table, they measured squares of equal dimensions of 10 x 10
               cm  and  disinfected  them  with  UVIB  and  NANO.  After  7  days,  numerous  colonies  of
               microorganisms were seen on the control nutrient media. On nutrient media after treatment with
               disinfectants UVIB and NANO, the number of colonies of microorganisms was lower, in favor
               of the disinfectant with NANO particles. It turned out that the assumption was not correct and
               that  the  disinfectant  with  NANO  particles  removes  microorganisms  from  the  kitchen  table
               better than the UVIB disinfectant. The results should be taken with a lot of caution due to the
               limited  number  of  samples,  different  temperature  and  humidity  conditions  in  the  students'
               homes and the conditions were not controlled (laboratory).


               Key words: microorganisms, disinfectants, lemon grass, nano particle



































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