Development of antibacterial waterborne polymeric coating using iodine complex

Film Formation of Iodinated Latex Dispersions and Its Role in Their Antimicrobial Activity

“…Based on our previous investigations, we determined that 1% (w/v) of the iodine complex is required for antibacterial and antibiofilm activity. 23 However, the film forming ability of iodinated latex dispersions, morphology of the formed films, and location of iodine within the films are all essential determinants for the final application as antibacterial coatings and are the subject of focus in the present work.…”

“…The mixture was stirred continuously at room temperature for 12 h. 100 μL of the 10% (w/v) iodine complex containing iodine, PVP, and ethylene glycol was blended with 900 μL of copolymer latex suspension and vortexed for 15 min to give an overall iodine content of 1% (w/v) to this iodinated latex suspension (Figure 1). 23 Based on the gravimetric analysis, the blend was applied on a glass substrate using a wire wound applicator to obtain a film of 100 μm thickness. Subsequently, the substrate coated with iodinated latex was dried at 37 °C for 5 h to form an iodinated film or coating.…”

“…This is due to the low solubility of iodine in water, requiring an iodide salt or other solvent medium. In recent work, we have reported synthesis and effectiveness of iodinated latex dispersions as antimicrobial coatings . Using ethylene glycol, a polyol, as a solubilizing agent for iodine and stabilized through polyvinyl­pyrrolidone (PVP), iodine was successfully incorporated into a latex dispersion.…”

“…In recent work, we have reported synthesis and effectiveness of iodinated latex dispersions as antimicrobial coatings. 23 Using ethylene glycol, a polyol, as a solubilizing agent for iodine and stabilized through polyvinylpyrrolidone (PVP), iodine was successfully incorporated into a latex dispersion. The resultant iodinated latex dispersions showed remarkable antimicrobial and antibiofilm properties.…”