We demonstrate that the microstructural and mechanical properties of bacterial biofilms can be created through colloidal self-assembly of cells and polymers, and thereby link the complex material properties of biofilms to well understood colloidal and polymeric behaviors. This finding is applied to soften and disassemble staphylococcal biofilms through pH changes. Bacterial biofilms are viscoel...

Biofilms are defined as bacterial communities surrounded by a structured extracellular polymeric matrix which is adhered to biotic or abiotic surfaces [1]. Biofilm formation develops in two steps: firstly, a primary attachment occurs onto polymeric surfaces, mediated partly by cell-wall associated adhesins; secondly, cell-cell proliferation forms a multilayered biofilm, mediated by production o...

Abstract The problem of management and treatment wastewater from commercial laundries is a matter concern. present study provides an effective eco-friendly solution to the in Quebec (Canada) by using extracellular polymeric substance (EPS) as bio-flocculant. EPS was produced valorization crude glycerol paper mill sludge bacterial strain (BS-04). Two different types EPS: Slime (S-EPS) Broth (B-E...

Caves with hot springs and speleothem deposits are infrequent environments of high scientific interest due to their unique environmental conditions. The selected site is a small open cave spring stalactites in the Aedipsos area (NW Euboea Island, Greece), which was studied through an interdisciplinary approach. mineralogical composition speleothems determined by optical microscopy, XRD, SEM-EDS...