این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Nanostructures، جلد ۱۱، شماره ۱، صفحات ۸۱-۹۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Green Synthesis of CuO Nanostructures using Syzygium guineense (Willd.) DC Plant Leaf Extract and Their Applications
چکیده انگلیسی مقاله The medicinal plant, Syzygium guineense (Willd.) DC (Waterberry) mediated green copper oxide nanostructures (SyG-CuO NSs) were successfully synthesized for the first time in Ethiopia. The antibacterial activity of CuO NSs capped by biomolecules of the plant leaf extract has been investigated. The UV-visible, UV-DRS, FT-IR, XRD, TGA-DTA, SEM, EDXA, TEM, HRTEM and SAED techniques were employed to characterize the NSs. The presence of two absorbance maxima, λmax1 and λmax2 at 423 nm and 451 nm, respectively confirms a mixture of copper oxide (Eg=1.93 eV). FTIR spectra confirmed the presence of biomolecules with SyG-CuO NSs. The XRD patterns of NSs confirmed the presence of CuO with high crystallinity. The purity of the NSs was confirmed by SEM-EDAX analysis. In addition, TEM-HRTEM-SAED analysis revealed the d-spacing value of 0.2854 nm which corresponds to CuO (111) lattice fringe. SyG-CuO NSs showed good antibacterial effect against both Gram-positive bacteria, S. aureus (12 mm), and Gram-negative bacteria, E. coli (12 mm), P. aeruginosa (10 mm), and E. aerogenes (12 mm). The bioactive compounds capped around the CuO NPs served the effective role in disrupting the cell wall of bacterial strains. The CV and EIS studies confirmed the better electrochemical properties for SyG-CuO with low charge transfer resistance value of 49 Ω. These CuO NSs exhibited multifunctional applications.
کلیدواژه‌های انگلیسی مقاله Antibacterial Activity, Green synthesis, Medicinal plants, Syzygium guineense (Willd.) DC, SyG-CuO NSs
نویسندگان مقاله Tegene Desalegn |
Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia.

H C Ananda Murthy |
Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia.

CR Ravikumar |
Research Centre, Department of Science, East West Institute of Technology, Bangalore, 560091, India.

H P Nagaswarupa |
Department of Chemistry, Davanagere University, Shivagangothri, Davanagere, 577001, India.

نشانی اینترنتی https://jns.kashanu.ac.ir/article_111463_71d858ec1a78bf2a4843c3097febbdd9.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات