Hydrogen-Releasing Microrobots and Sepsis in Mice

Scientists have created a tiny, self-propelled device that delivers antibiotics and produces hydrogen to effectively treat sepsis in mice, significantly increasing their survival rates.

A hydrogen-generating micromotor loaded with antibiotic achieved 87.5% survival in mice with fatal sepsis, compared to 0% survival in untreated controls and ~50% survival with either treatment alone.

Researchers created a tiny biodegradable device loaded with an antibiotic that generates hydrogen gas as it moves through the body. In mice with severe sepsis (a life-threatening infection), this device was placed in the abdominal cavity where it reacted with fluid to produce hydrogen gas, which powered its movement and delivered the antibiotic directly to infected areas. The combination of hydrogen's anti-inflammatory effects and the antibiotic's bacteria-killing power worked together to prevent organ damage and improved survival rates to 87.5% in mice that would have otherwise died.

This is early-stage research in mice only, demonstrating a novel concept of combining hydrogen generation with antibiotic delivery for sepsis treatment. While the results are promising for future medical applications, this device is not available for human use and much more research is needed before any conclusions can be drawn about hydrogen's role in treating sepsis in people.

Sepsis is a highly heterogeneous syndrome normally characterized by bacterial infection and dysregulated systemic inflammatory response that leads to multiple organ failure and death. Single anti-inflammation or anti-infection treatment exhibits limited survival benefit for severe cases. Here…

Read the full abstract on PubMed