Incorporation of antibacterial active additives inside polycarbonate surfaces by using compressed carbon dioxide as transport aid

Utilization of supercritical carbon dioxide in fabrication of cellulose acetate films with anti-biofilm effects against Pseudomonas aeruginosa and Staphylococcus aureus

“…In addition, SSI has been applied to the development of materials with antibacterial activity on the laboratory scale [10][11][12][13][14][15][16]. Considering the urgent need for new materials with antibacterial properties, and taking into account numerous advantages of SSI, this technique is expected to play an essential role in their production on the industrial scale in the near future.…”

Supercritical Fluid Applications in the Design of Novel Antimicrobial Materials

“…Unlike SSI, it also enables the incorporation of poorly in scCO 2 soluble substances due to the excellent transport properties of supercritical and liquid carbon dioxide as well as their interaction with the solid matrix. The recent study on the production of polycarbonate antibacterial surfaces [78] demonstrated the feasibility and plausibility of the process. The scale-up of these processes includes the optimization of contact between the phases and minimization of the liquid phase quantity.…”

“…Abrasion as well as UV-radiation and led to a loss of antimicrobial activity of the samples impregnated at 20 • C. However, the samples impregnated at 80 • C resisted the tests. The leaching of the samples was analyzed to determine the toxicity on humans, and the toxicity could not be confirmed [78]. These excellent results opened a way towards production of antibacterial surfaces which could be applied to many elements in hospitals such as doorknobs, switches, handrails, buttons, surfaces for placement of medical devices, etc.…”

Impregnation of Materials in Supercritical CO2 to Impart Various Functionalities

“…Peng et al used silver nanoparticles to coat wool fabrics in scCO 2 , and the coated fabric exhibited excellent catalytic, antistatic, and antibacterial activities [52]. Polycarbonate has been impregnated with silver nitrate in scCO 2 , resulting up to 99.9% bacteria reduction [53]. Belmas and co-workers [54][55][56] have used scCO 2 process to impregnate a range of organometallic complexes in a synthetic polymer prior to electroless copper plating to improve the adhesion of copper to the polymer.…”