 The study investigates the effects of different silver nitrate-soul gel formulations on the prevention of ventilator-associated pneumonia, DAP, in critically ill patients. The researchers found that a silver nitrate-soul gel formulation with a concentration of 0.03496% and a pH value of 8 had the greatest efficacy in reducing the growth of Escherichia coli bacteria. This formulation also demonstrated the highest biocompatibility and lowest thickness, making it the most suitable candidate for use in real-world clinical settings. This article was authored by Manna Fahdi al-Said, Mohamed Tariq al-Waqid, Mohamed al-Hasan and others.