[The interaction of pathogenic microorganisms with the sorbent polymethylsiloxane]

Area of Science:

• Microbiology
• Materials Science
• Biotechnology

Background:

• Organosilicon sorbents like polymethylsiloxane (PMS) are explored for biomedical applications.
• Microbial adhesion to surfaces is a critical factor in biomaterial performance and infection.
• Developing effective antimicrobial materials requires understanding microbial interactions with novel substrates.

Purpose of the Study:

• To investigate the adhesion and subsequent destruction of microbial cells on pure polymethylsiloxane (PMS) and a novel medicamentous complex.
• To compare the interaction of Staphylococcus aureus, Escherichia coli, and Candida species with PMS and the drug-eluting complex.
• To elucidate the mechanisms underlying microbial interactions with organosilicon materials.

Main Methods:

• Utilizing electron microscopy to visualize and analyze microbial cell adhesion.
• Employing standard strains of Staphylococcus aureus (Gram-positive), Escherichia coli (Gram-negative), and fungi (Candida genus).
• Evaluating microbial adhesion and destruction on both pure PMS and a medicamentous complex containing immobilized furazolidone and metronidazole on silver-modified PMS.

Main Results:

• Microbial cell adhesion to PMS and the medicamentous complex was observed and quantified.
• The adhesion process was accompanied by microbial cell destruction.
• The rate of microbial destruction varied significantly between the pure PMS and the medicamentous complex.

Conclusions:

• Polymethylsiloxane (PMS) influences the adhesion and viability of various microorganisms.
• The medicamentous complex exhibits distinct interactions with Gram-positive, Gram-negative bacteria, and fungi compared to pure PMS.
• Experimental data suggest specific mechanisms for PMS interaction with different microbial types, highlighting its potential in antimicrobial applications.