Biosynthesis of Zinc Oxide Nanoparticles Using Solenostemon Monostachyus Leaf Extract and its Antimicrobial Activity


  • Elisha Karu Gombe State University, Gombe State, Nigeria
  • Buhari Magaji* Gombe State University, Gombe State, Nigeria
  • Zaccheus Shehu Gombe State University, Gombe State, Nigeria
  • Hadiza Abdulsalam Gombe State University, Gombe State, Nigeria


Antimicrobial activity, Characterization, Nano zinc oxide, Solenostemon monostachyus


Communication In Physical Sciences 2020 ,66(1) : 699-705

Received 24 August 2020/Accepted 07 September 2020

A simple and rapid biosynthesis of zinc oxide nanoparticles (ZnO NPs) obtained using Solenostemon monostachyus leaf extract. The ZnO NPs was characterised by UV-visible spectroscopy, scanning electron microscopy/Energy dispersed X-ray, Fourier Transform Infra-red and X-ray Diffraction techniques. The UV-visible spectrum showed a maximum absorption peak at 350 nm which is typical for ZnO NPs and was ascribed to the excitation of Surface Plasmon Resonance phenomenon. FTIR Spectroscopy revealed a broad peak around 3455 cm-1 which was attributed to OH stretching vibration (υOH) that is probably from alcohols, flavonoids and phenols. X-ray Diffraction studies were observed at 2θ = 11.1°, 13.8°, 16.7°, 25.1°, 28.9° and 44.0°. The X-ray spectrum indicated typical for crystalline nanoparticles. Calculated nano particle size was 23.06 nm and was within the literature range for nano zinc oxide. The synthesized NPs exhibited significant antibacterial activity against Escherichia coli and Staphylococcus aureus but exhibited moderate activity against Klebsiella pneumonia and Salmonella typhimurium. Significant antifungal activity was also observed against Aspergellus niger and Candida albican.


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Author Biographies

Elisha Karu, Gombe State University, Gombe State, Nigeria

Department of Chemistry

Buhari Magaji*, Gombe State University, Gombe State, Nigeria

Department of Chemistry

Zaccheus Shehu, Gombe State University, Gombe State, Nigeria

Department of Chemistry

Hadiza Abdulsalam, Gombe State University, Gombe State, Nigeria

Department of Chemistry


Ahmed, S., Chaudry, A. S., Annu, A. & Ikram, S. (2017). A Review on biogenic synthesis of ZnO nanoparticles using plant extracts and microbes: A prospect towards green chemistry. Journal of Photochemistry and Photobiology B: Biology, 166, pp. 272-284.

Alrubaie, E. A. A., & Kadhim, R. E. (2019). Synthesis of ZnO nanoparticles from olive plant extract. plant Archives, 19, 2, pp. 339-344.

Dobrucka, R. & Dlugaszewska, J. (2016). Biosynthesis and antibacterial activity of ZnO nanoparticles using Trifolium Practense Flower. Saudi Journal of Biological Sciences, 23, 4, pp. 517-523.

Ezealisiji, K. M., Noundou, X. S., Maduelosi, B., Nwachukwu, N. & Krause, R. W. M. (2019). Green synthesis of zinc oxide nanoparticles using Solanum torvum (L) leaf extract and evaluation of the toxicological profile of the ZnO nanoparticles–hydrogel composite in Wistar albino rats. International Nano Letters, 9, pp. 99-107

Fakhari, S., Jamzad, M. & Fard, H. K. (2019). Green synthesis of zinc oxide nanoparticles: a comparison: Green Chemistry Letters and Reviews, 12, 1, pp. 19-24.

Govindappa, M., Farheen, H, Chandrappa, C.P., Channabasava, R., Rai, R.V. and Raghavendra, V.B. (2016). Mycosynthesis of silver nanoparticles using extract of endophytic fungi, Penicillium species of Glycosmis mauritiana, and its antioxidant, antimicrobial, anti-inflammatory and tyrokinase inhibitory activity. Adv. Nat. Sci.: Nanosci. Nanotechnol. 7: 035014.

Jain, D., Daima, H.K., Kachhwala, S. & Kothari, S.L. (2009). Synthesis of plant-mediated silver nanoparticles using papaya fruit extract and evaluation of their antimicrobial activities. Digest Journal of Nanomaterials and Biostructures, 4, 3, pp. 557-563.

Karu, E., Magaji, B., Shehu, Z. & Abdulsalam, H. (2020). Green synthesis of silver nanoparticles from Solenostemon monostachyus leaf extract and in vitro antibacterial and antifungal evaluation. European Journal of Advanced Chemistry Research, 1, 4, pp. 1-5.

Kaviya, S., Santhanalakshmi, J. & Viswanathan, B. (2011). Green synthesis of silver nanoparticles using Polyalthia longifolia leaf extract along with sorbitol: study of antibacterial activity. Journal of Nanotechnology, 7, 7, pp. 22-23.

Kumar, S. & Pandey, A.K. (2013). Chemistry and biological activities of flavonoids: an overview. The Scientific Works Journal,

Laurent, S., Forge, D., Port, M., Roch, A., Robic, C., Elst, V. L. & Muller, R. N. (2008). Magnetic iron oxide nanoparticles: synthesis, stabilization, vectorization, physicochemical characterisations, and biological applications, Chemical Reviews, 108, 6, pp. 2064-2110.

Mahendiran, D., Subash, G., Selvan, D. A., Rehana, D., Senthil Kumar, R. S. & Rahiman, A. K. (2017). Biosynthesis of Zinc Oxide Nanoparticles Using Plant Extracts of Aloe vera and Hibiscus sabdariffa: Phytochemical, Antibacterial, Antioxidant, and Anti-proliferative Studies. BioNanoScience, 7, pp. 530-545.

Mydeen, S. S., Kumar, R. R., Kottaisamy, M. & Vasantha, V. S. (2019). Biosynthesis of ZnO nanoparticles through extract from Prosopis juliflora plant leaf: Antibacterial activities and a new approach by rust-induced photocatalysis. Journal of Saudi Chemical Society, 24, pp. 393-406.

Odika, P. C., Ihenacho, P. C., & Anudike, J. C. (2007). Proximate, phytochemical and amino acid composition of Solenostemon monastachyus (P. Beaux) leaves. Intraspecifi1-7c Journal of Biochemistry and Biotechnology, 4, 2, pp. 1-7.

Odiongenyi, A. O. & Afangide, U. N. (2019). Adsorption and thermodynamic studies on the removal Congo red dye from aqueous solution by alumina and nano alumina. Communication in Physical Sciences, 4, 2, pp. 1-7.

Odiongenyi, A. O. (2019). Removal of ethyl violet dye from aqueous solution by graphite dust and nano graphene oxide, synthesized from graphite dust. Communication in Physical Sciences, 4, 2, pp. 103-109.

Ogunyemi, S. O., Abdallah, Y., Zhang, M., Fouad, H., Hhong, X., Ibrahim, E., Masum, M.I., Hossain, A., Mo, J. & Li, B. (2019). Green synthesis of zinc oxide nanoparticles using different plant extracts and their antibacterial activity against Xanthomonas oryzae pv.oryzae. Artificial Cells, Nanomedicine, and Biotechnology: An International Journal, 47, 1, pp. 341-352.

Ohamad, N. A. N., Arham, N. A., Jai, J., & Hadi, A. (2013). Plant Extract as Reducing Agent in Synthesis of Metallic Nanoparticles: A Review. Advanced Materials Research, 832, pp. 350-355.

Osikoya, I. O., Afolabi, I. S., Okafor, A. M. & Rotimi, S.O. (2017). Antioxidant activity of Solenostemon monostachyus (P. Beauz.) Briq. In induced rats. International Journal of Biochemistry Research and Review, 18, 4, pp. 1-11.

Pal, S., Mondal, S., Maity, J. & Mukherjee, R. (2018). Synthesis and Characterisation of ZnO Nanoparticles using Moringa Oleifera Leaf Extract: Investigation of photocatalytic and antibacterial activity. International Journal of Nanotechnology, Nanotechnology, 14, 2, pp. 111-119.

Shah, R. K., Boruah, F. & Parween, N. (2015). Synthesis and Characterisation of ZnO Nanoparticles using Leaf Extract of Camellia sinesis and Evaluation of the Antimicrobial Efficacy. International, Journal of Current Microbiology and Applied Sciences, 4, 8, pp. 444-450.

Sundrarajan, M., Ambika, S. & Bharathi, K. (2015). Plant extract mediated synthesis of ZnO Nanoparticles using Pongamia pinnata and their activity against pathogenic bacteria. Advanced Powder Technology, 26, 5, pp. 1294-1299.

Talam, S., Karumuri, S. R. & Gunnam, N. (2012). Synthesis, characterization and spectroscopic properties of ZnO nanoparticles. International Scholarly Research Notices,

Umar, H., Kavaz, D. & Rizaner, N. (2019). Biosynthesis of zinc oxide nanoparticles using Albizia lebbeck stem bark, and evaluation of its antimicrobial, antioxidant, and cytotoxic activities on human breast cancer cell lines. International Journal of Nanomedicine, 14: 87-100.

Vijayakumar, S., Krishnakumar, C., Arulmozhi, P., Mahadevan, S. & Parameswari, N. (2018). Biosynthesis, characterisation and antimicrobial activities of zinc oxide nanoparticles from leaf extract of Glycosmis pentaphylla (Retz.) DC, Microbial Pathogenesis, 116, pp. 44-48.

Yedurkar S., Maurya, C. & Mahanwar, P. (2016). Biosynthesis of zinc oxide nanoparticles using Ixora coccinea leaf extract-A green approach. Open Journal of Synthesis Theory and Applications, 5, 1, pp. 1-4.