We examined the capacity of SiO2@Cu core-shell nanoparticles to inhibit Escherichia coli and Streptococcus mutaus. Before after addition silicate, copper showed a surface plasmon resonance (SPR) with peak in 620–630 nanometers' region. SiO2@cu nanoparticle manufacturing was further demonstrated have spherical shape, as TEM. The crystal structure SO2 @cu we found matches X-ray diffraction patter...
