Biofilms & Hidden Electrical Currents Biofilms and Hidden Electrical Currents: How Microbial Communities Stay Connected Biofilms are complex microbial communities formed by parasites, bacteria, and mold. Unlike free-floating microbes, biofilms stick together on surfaces — from the gut lining to environmental surfaces like water pipes or soil. For years, biofilms were thought to act mainly as protective barriers , shielding microbes from toxins, antibiotics, and the immune sys
