Biofilm matrix component

Biofilm matrix components collectively refer to the network of extracellular polymeric substances (EPS), including polysaccharides, proteins, nucleic acids, and lipids, secreted by microorganisms within the biofilm. These components create a complex, protective scaffold that supports biofilm structure, mediates adhesion to surfaces, and shields bacteria from antibiotics and immune responses[1][3][5][7]. Therapeutic targeting of the biofilm matrix often involves metal ion chelation—using agents such as EDTA or citrate—to disrupt essential ionic cross-links (especially divalent cations like calcium and magnesium) that stabilize the matrix[2][4][8]. Other agents, including poloxamers and glycerol, may disrupt the matrix physically or chemically. This approach is used to destabilize mature biofilms, enhance antimicrobial efficacy, and combat chronic or device-associated infections[2][4][6].

Other names

Extracellular polymeric substance (EPS)Biofilm extracellular matrixBiofilm EPS

Metal ion chelation (removal of stabilizing cations); Physical disruption of matrix; Enhanced penetration of antimicrobials; Destabilization of matrix cohesion