![]() The DLP-based polymer 3D printer used to conduct this study was an Anycubic Photon (Anycubic, Commerce, CA, USA) with a build volume of 115 mm × 65 mm × 155 mm. If exposed to light in the UV spectrum, the nanoparticles became safe for use in the human body. The size-controlled nanoparticles can also improve the antibacterial efficacy because the smaller sizes can easily penetrate into bacterial membranes due to their larger particle surface areas. UV illumination was observed to be a vital mechanism in activating the antibacterial properties of the given nanoparticles. The nanoparticle antimicrobial capacities can be further enhanced by ultraviolet (UV) illumination due to the photocatalysis effects of these nanoparticles. coli) colonies were exposed to surfaces treated with nanoparticles, prevention in further bacteria growth was observed. Nanoparticles (particle diameter < 100 nm), such as titanium dioxide (TiO 2) and zinc oxide (ZnO), have been widely studied due to their significant antimicrobial potentials, especially valuable to antibiotic-resistant bacteria. Therefore, it is critical to test the key mechanical properties of the manufactured composites to prevent the bacteria growth and, then, to reduce their emissions. difficile bacteria can grow and be emitted from both wet (such as flushing toilet bowl water and bowl surfaces) and dry (such as table, ground, and wall surfaces) environments. Thus, CDI is related to many healthcare activities, including the bed making, bedpan washing, provider movement, housekeeping activities, and toilet flushing. difficile spores that become airborne during patient care activities travel long distances, contaminating environmental surfaces remote from the sources. Contact precautions and environmental hygiene have been only moderately successful for CDI control, which remains a seemingly intractable problem. difficile as an “urgent” threat (the highest threat) in its antimicrobial resistance threat report. In addition, the Centers for Disease Control and Prevention (CDC) has classified C. difficile) infection (CDI) is the leading cause of nosocomial diarrhea worldwide with substantial morbidity, mortality, and healthcare cost. ![]() For example, Clostridioides difficile ( C. Wear resistance, durability, and water resistance of polymers and nanocomposites are critical in healthcare environment applications. The pairing of an unmodified photocurable resin with a 1% ZnO concentration demonstrated the most promise for commercial applications. Therefore, they have the potential for long-term usage to improve general public health with antimicrobial functionality. The pairing of digital light processing with these novel nanocomposites allows for the creation of complex composite geometries that are not capable through other manufacturing processes. The wettability and water absorption testing results indicate that the developed nanocomposites have an outstanding water resistance capability. The proper dispersion of the nanoparticles within the cured resin is validated by scanning electron images. The modulus of elasticity increased by 14.3%, and abrasion resistance increased by 15.8%. Tensile strength increased by 42.2% at a maximum value of 29.53 MPa. Specimens produced were observed to demonstrate the following characteristics during testing. Experimental characterizations are conducted to investigate key mechanical properties of the 3D printed nanocomposites, including Young’s Modulus, tensile strength, and abrasion resistance. The developed nanocomposites can be additively manufactured using the digital light processing method with an outstanding surface quality and precise geometrical accuracy. ![]() Two types of photocurable resins are reinforced by titanium dioxide (TiO 2) or zinc oxide (ZnO) nanoparticles with average diameters in the 10–30 nm range to provide antimicrobial properties. This paper presents the additive manufacturing and characterization of nanoparticle-reinforced photocurable resin-based nanocomposites with a potential antimicrobial function for improved public health applications.
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