Exploring the functionality of mesoporous silica nanoparticles as a prebiotic agent

Area of Science:

• Materials Science
• Biotechnology
• Nanotechnology

Background:

• Mesoporous silica nanoparticles (MSNs), including SBA15 and SBA16, offer unique structural properties like high surface area and biocompatibility.
• These characteristics make them suitable for various applications, including potential roles in modulating microbial growth.

Purpose of the Study:

• To investigate the prebiotic potential of SBA15 and SBA16 mesoporous silica nanoparticles.
• To evaluate their impact on the growth and metabolic activity of Bacillus coagulans.
• To explore their influence on antibiotic efficacy.

Main Methods:

• Characterization of MSNs (SBA15, SBA16) using SEM, TEM, BET, UV-Vis, and DLS.
• Assessing Bacillus coagulans growth via optical density and colony-forming unit assays.
• Enzyme assays for ATP levels and determination of Ampicillin Minimum Inhibitory Concentration (MIC).

Main Results:

• SBA15 and SBA16 possess distinct structural features (hexagonal vs. tubular pores) and surface areas (718 m²/g vs. 740 m²/g).
• MSNs significantly enhanced Bacillus coagulans proliferation at low concentrations (0.1-1 ppm), with SBA15 being more effective.
• Increased ATP levels indicated enhanced metabolic activity, and a rise in Ampicillin MIC was observed due to nanoparticle adsorption.

Conclusions:

• Mesoporous silica nanoparticles act as effective prebiotic agents, promoting probiotic growth and metabolic activity.
• The pore size of MSNs influences bacterial adhesion, nutrient absorption, and proliferation efficiency.
• MSNs can mitigate antibiotic stress by reducing drug bioavailability, presenting potential applications in healthcare and biotechnology.