T1 - Study of the synthesis of copper nanoparticles
A copper nanoparticle is a copper based particle 1 to 100 nm in size
NanoSight was founded in 2004 by Dr Bob Carr and John Knowles after Carr discovered a technology which allows particles so small they were below the normal optical microscope limit to be seen, sized and counted in less than a minute for a fraction of the cost of electron microscopes.
Synthesis of Copper Nanoparticles
Antibacterial have been widely used in the textile industry, water disinfection, medicine and food packaging. Organic compounds used for disinfection have some drawbacks, including toxicity to the human body, therefore, the interest in inorganic disinfectants such as metal oxide nanoparticles (NPs) is increasing (). Antibacterial activities of nanoparticles depend on two main factors, including physico of NPs and type of bacteria (). An important factor that can influence the tolerance of bacteria against NPs is the rate of bacterial growth. Fast growing bacteria are more susceptible to NPs than slow-growing bacteria (). It is possible that the tolerance property of slow-growing bacteria is related to the expression of stress-response genes (). Therefore, antibacterial effects highly depend on the particular strain. The exact mechanisms of NPs toxicity against various bacteria are not fully understood. It is believed that NPs are able to attach to the membrane of bacteria by electrostatic interaction and disrupt the integrity of the bacterial membrane (). The toxicity of NPs depends on the combination of several factors such as temperature, aeration, pH, concentration of NPs and concentration of bacteria. The , high aeration and low pH decrease the agglomeration and increase the toxicity (). In this study, synthesis of copper nanoparticles was approached by a single-precursor route via controlling the growth temperature and Cu-NPs effects on the growth rate of were investigated.