Open AccessBiosynthesis of copper nanoparticles using methanol extract of sugar-apple leaves (Anonnaceae squamosa), and its antioxidant activity
Author(s) -
Ilham Maulana,
Dhiaulhaq Fasya,
Binawati Ginting,
Rustam Efendi
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2193/1/012057
Subject(s) - dpph , antioxidant , nuclear chemistry , copper , methanol , fourier transform infrared spectroscopy , chemistry , nanoparticle , reducing agent , sugar , reducing sugar , organic chemistry , materials science , chemical engineering , nanotechnology , engineering
Study on the biosynthesis of copper nanoparticles has been carried out employing the green synthesis method using methanol extract of Sugar-Apple leaf ( Anonnaceae squamosa ) as a reducing agent and stabilizer. The results of the reduction reaction of Cu 2+ ions were confirmed using a UV-Vis Spectrophotometer, Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM). The results of the characterization analysis showed that the nanoparticles formed were Cu, CuO 2 , Cu 2 O, and CuO, with crystal size of 38.17 nm, 27.82 nm, 15.59 nm, and 37.08 nm respectively. The obtained copper nanoparticles were tested for their antioxidant activity using the 1,1-diphenyl-2-picrihydrazil (DPPH) method. The antioxidant test results from the formed copper nanoparticles showed an IC 50 value of 263.35 ppm, while vitamin C was 5.81 ppm. The previous study on the antioxidant activity of the methanol extract of Sugar-Apple leaf showed an IC 50 value of 5.6 ppm. Therefore, it can be concluded that the antioxidant activity of the formed nanoparticles has a weak inhibitory power against 1,1-diphenyl-2-pycrilhydrazil (DPPH) radicals.