Jurnal Penelitian Pendidikan IPA (JPPIPA)
Vol 9 No 11 (2023): November

Experimental Design for the Observation of Saliva Droplets Using a High-Speed Camera

Rachmad Almi Putra (Universitas Samudra)
Hamdani Umar (Department of Mechanical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia)
Samsul Rizal (Department of Mechanical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia)
Maimun Syukri (Medical Faculty, Universitas Syiah Kuala, Banda Aceh, Indonesia)
Salamul Fajar (Doctoral Program, School of Engineering, Universitas Syiah Kuala, Banda Aceh, Indonesia)



Article Info

Publish Date
25 Nov 2023

Abstract

Disease transmission is often caused by viruses or bacteria contained in salivary droplets. Salivary droplets are produced from breathing, coughing, and sneezing activities. The extent of droplet dispersal can determine the safe distance between individuals when interacting, many studies have taken a simulation and modeling approach, arguing that the risk of exposure to pathogens. In this study, we attempted to set up an instrument to experimentally observe the flow of saliva droplets emitted during sneezing using a High-Speed Camera (HSC) model Phantom T-1340 without using a light sheet. Additionally, this study did not use lasers for the comfort and safety of individuals during recording of sneezing phenomena. The observation results explain that the sneezing phenomenon occurs within a time frame of 300 ms. The number of droplets observed was 246 with an observation probability of only 66%. The saliva fluid emitted is considered as large particles (bulk droplets) that undergo refraction due to two main factors, namely external and internal factors. External factors are influenced by environmental air flow rate, humidity, and temperature. Internal factors refer to the contents present in saliva such as water, protein, enzymes, and mucus or mucin.

Copyrights © 2023






Journal Info

Abbrev

jppipa

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

Description

Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching ...