Evaluating Low-Level Disinfection of Smartphones Using Disinfectant Wipes Under Laboratory-Simulated Conditions
Background: Smartphones are now widely used in clinical settings for communication, documentation, and even diagnostic procedures such as digital auscultation. However, their frequent handling makes them potential carriers of microorganisms. Simple and effective cleaning methods are therefore essential to prevent the spread of healthcare-associated infections.
Methods: This study evaluated the efficacy of disinfectant wipes in reducing microbial contamination on mobile device surfaces used in clinical practice. Three commercially available smartphones were experimentally contaminated with bacterial suspensions of Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Klebsiella pneumoniae supplemented with 5% bovine serum. After drying, each surface was wiped with CaviWipes™ containing isopropanol and quaternary ammonium compounds. Samples were then neutralized in Letheen broth, plated, and incubated to determine bacterial survival.
Results: Cleaning with disinfectant wipes completely eliminated all tested bacteria. No viable colonies were detected after treatment, corresponding to reductions greater than six log₁₀ units for each strain. These results confirm full bactericidal activity in accordance with accepted criteria for low-level disinfection of non-critical medical devices.
Conclusions: Regular cleaning of smartphones with disinfectant wipes is a fast, effective, and laboratory-confirmed method for maintaining microbiological safety in clinical use. This practical approach requires no additional equipment and should be incorporated into routine infection prevention practices in healthcare facilities.
DOI: 10.29245/2689-9981/2025/3.1186 View / Download Pdf