Abstrak

Baca Juga : BIOSINTESIS KATALIS NANOPARTIKEL MGO DAN UJI KATALITIKNYA SEBAGAI ANTIMIKROBA ANORGANIK (Yola Nadia, 2017) ,

Baca Juga : UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL KULIT BUAH RAMBUTAN ACEH (NEPHELIUM LAPPACEUM L.) TERHADAP BAKTERI STAPHYLOCOCCUS AUREUS DAN ESCHERICHIA COLI (Nur Irhamni Sabrina, 2018) ,

a coli dan staphylococcus aureus yang menggunakan metode turbidimetri membuktikan bahwa nanopartikel cuo yang dihasilkan pada penelitian ini dapat menghambat pertumbuhan bakteri e. coli dan s. aureus dengan persentase hambatan sebesar 51,49% untuk e. coli dan 40,44% untuk s. aureus. kata kunci : biosintesis, nanopartikel cuo, garcinia,mangostana, antimikroba anorganik. abstract biosynthesis of copper oxide nanoparticles (cuo) using mangosteen fruit peel extract (garcinia mangostana) and cuso4.5h2o compound as chemical precursor has been successfully conducted. the characterization using uv-vis spectrophotometer indicating that the maximum absorption value at 376 nm, which is indicated the existing cu-o bond in the sample. furthermore, characterization using ftir were observed some specific absorption at 401.19 cm-1, 414.70 cm-1, 424.34 cm-1, 459.06 cm-1, 470.63 cm-1, 486.06 cm-1, 513.07 cm-1 and 570.93 cm-1, which referred the specific ftir absorption of cuo particles. the characterization using xrd shown that the average size of cuo nanoparticle is 24.59 nm, where as the physical inspection using sem shown that formation of cuo particles are in spherical form, and the further confirmation by using edx has indicated the cuo particles consist of copper of 77.27% , oxigen of 22.01% and sulfur of 0.73%, respectively. finally, antimicrobial activity of cuo nanoparticles on bacteria escherichia coli and staphylococcus aureus by the turbidimetric method has been performed which were indicating that those cuo particles prepared on this experiment have actimicrobial activity to inhibit the microbial growth of e. coli and s. aureus bacteria, with the number of obstacles are 51.49% for e. coli and 40,44% for s. aureus. keywords : biosynthesis, cuo nanoparticles, garcinia mangostana, inorganic

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