TAILIEUCHUNG - Factors affecting antibacterial activity of acrylic resin containing silver nanoparticles

In this research, silver nanoparticles were dispersed into acrylic emulsion by high-speed stirring method using scattered disc at room temperature. Antibacterial activity of the mixture was examined through changes of some parameters such as nanosilver concentration, dispersing time and water addition amount. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 19, SOÁ M2- 2016 Factors affecting antibacterial activity of acrylic resin containing silver nanoparticles Phan Quoc Phu, Nguyen Vo Dang Canh, Pham Thi Le, Tran Pham Thi To Quyen, La Thi Thai Ha Ho Chi Minh city University of Technology - Vietnam National University – Ho Chi Minh City (Received 18 October 2016, accepted 23 November 2016) ABSTRACT In this research, silver nanoparticles were dispersed into acrylic emulsion by high-speed stirring method using scattered disc at room temperature. Antibacterial activity of the mixture was examined through changes of some parameters such as nanosilver concentration, dispersing time and water addition amount. The antibacterial properties were evaluated via changes of number and size of colonies forming on the surface of the film casting from this mixture in petri dishes. Besides that, the silver nanoparticles distribution ability into the film was evaluated through the analysis of scanning electron microscope images. As results, the surfaces of the acrylic resin shown on the high antibacterial resistance rates reached about for 1,500 ppm silver nanoparticles dispersing into acrylic emulsion in 3 hours with the water addition amounts about 5%. Key word: silver nanoparticles; acrylic liquid resins; antibacterial. 1. INTRODUCTION Nowadays, the effects of environmental pollution and climate change on the risk of disease have increased such as: cholera, tuberculosis and plague [1]. In particular, there are many new species of bacteria causing a lot of infectious disease outbreaks such as SARS, A/H5N1, and A/H1N1. Therefore, the demands of protection and healthcare for human have been concentrated. Besides of focusing on researches of super bacteria resistant and antifungal medicines, researchers have studied to manufacture products containing nanoscale materials for killing off pathogens [2]. In recent years, there are a lot of researches demonstrated that when size of silver .

• Vật lý
• Factors affecting antibacterial activity
• Acrylic resin containing silver nanoparticles
• The analysis of scanning electron microscope images
• High speed stirring method
• The high antibacterial resistance
• Multidrug resistant E coli isolated
• Showing high resistance
• Multi drug resistance
• Antibacterial agents
• Vitro sensitivity towards