For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
4
views
39
references
 Top references
cited by
56
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      383
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Green synthesis of antimicrobial silver nanoparticles using aqueous leaf extracts from three Congolese plant species ( Brillantaisia patula, Crossopteryx febrifuga and Senna siamea)

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          In the present study, silver nanoparticles (AgNPs) were synthesized using aqueous leaf extracts of three Congolese plant species, namely Brillantaisia patula (BR-PA), Crossopteryx febrifuga (CR-FE) and Senna siamea (SE-SI). The obtained AgNPs were studied for their optical, structural, surface morphological and antibacterial properties. The prepared AgNPs were characterized by using UV-Visible spectra, Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray spectroscopy (EDX) and X-ray diffractometer (XRD). The synthesized nanoparticles were spherical shaped and well-dispersed with average sizes ranging from 45 to 110 nm. The AgNPs derived from BR-PA, CR-FE and SE-SI exhibited higher antibacterial activity against three bacterial pathogens of the human skin compared to their respective crude extracts and AgNO 3. This indicated that the biomolecules covering the nanoparticles may enhance the biological activity of metal nanoparticles. Hence, our results support that biogenic synthesis of AgNPs from Congolese plants constitutes a potential area of interest for the therapeutic management of microbial diseases such as infectious skin diseases.

          Abstract

          Green synthesis; Medicinal plants; Silver nanoparticles; Leaf aqueous extracts; Antibacterial activity; Engineering; Materials science; Chemistry; Biological sciences; Health sciences.

          Related collections

          Most cited references39

          • Record: found
          • Abstract: found
          • Article: not found

          Silver as antibacterial agent: ion, nanoparticle, and metal.

          Svitlana Chernousova, Matthias Epple (2013)
          The antibacterial action of silver is utilized in numerous consumer products and medical devices. Metallic silver, silver salts, and also silver nanoparticles are used for this purpose. The state of research on the effect of silver on bacteria, cells, and higher organisms is summarized. It can be concluded that the therapeutic window for silver is narrower than often assumed. However, the risks for humans and the environment are probably limited. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
          Article 0 comments Cited 530 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            “Green” Nanotechnologies: Synthesis of Metal Nanoparticles Using Plants

            V. V. Makarov, A. Love, O. V. Sinitsyna … (2014)
            While metal nanoparticles are being increasingly used in many sectors of the economy, there is growing interest in the biological and environmental safety of their production. The main methods for nanoparticle production are chemical and physical approaches that are often costly and potentially harmful to the environment. The present review is devoted to the possibility of metal nanoparticle synthesis using plant extracts. This approach has been actively pursued in recent years as an alternative, efficient, inexpensive, and environmentally safe method for producing nanoparticles with specified properties. This review provides a detailed analysis of the various factors affecting the morphology, size, and yield of metal nanoparticles. The main focus is on the role of the natural plant biomolecules involved in the bioreduction of metal salts during the nanoparticle synthesis. Examples of effective use of exogenous biomatrices (peptides, proteins, and viral particles) to obtain nanoparticles in plant extracts are discussed.
            Article 0 comments Cited 363 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              Bactericidal and Cytotoxic Properties of Silver Nanoparticles

              Chengzhu Liao, Yuchao Li, Sie Tjong (2019)
              Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.
              Article 0 comments Cited 265 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Contributors
                Patrick B. Memvanga
                Journal
                Journal ID (nlm-ta): Heliyon
                Journal ID (iso-abbrev): Heliyon
                Title: Heliyon
                Publisher: Elsevier
                ISSN (Electronic): 2405-8440
                Publication date PMC-release: 05 August 2020
                Publication date Collection: August 2020
                Publication date (Electronic): 05 August 2020
                Volume: 6
                Issue: 8
                Electronic Location Identifier: e04493
                Affiliations
                [a ]Laboratory of Pharmaceutics and Phytopharmaceutical Drug Development, Faculty of Pharmaceutical Sciences, University of Kinshasa, B.P. 212, Kinshasa XI, Democratic Republic of the Congo
                [b ]Center for Chemico- and Bio-Medicinal Research (CCBR), Department of Chemistry, Rhodes University, PO Box 94, Grahamstown 6140, Eastern Cape, South Africa
                [c ]Laboratory of Microbiology, Faculty of Pharmaceutical Sciences, University of Kinshasa, B.P. 212, Kinshasa XI, Democratic Republic of the Congo
                Author notes
                [∗ ]Corresponding author. patrick.memvanga@ 123456unikin.ac.cd
                Article
                Publisher ID: S2405-8440(20)31337-2 Publisher ID: e04493
                DOI: 10.1016/j.heliyon.2020.e04493
                PMC ID: 7408328
                PubMed ID: 32793824
                SO-VID: be8d5b2e-4980-4ca3-ab03-beabef9e3c3e
                Copyright © © 2020 The Authors
                License:

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                Date received : 17 May 2020
                Date revision received : 29 June 2020
                Date accepted : 14 July 2020
                Categories
                Subject: Article

                Keywords: green synthesis,medicinal plants,silver nanoparticles,leaf aqueous extracts,antibacterial activity,engineering,materials science,chemistry,biological sciences,health sciences
                Data availability:
                Keywords: green synthesis, medicinal plants, silver nanoparticles, leaf aqueous extracts, antibacterial activity, engineering, materials science, chemistry, biological sciences, health sciences

                Comments

                Comment on this article

                scite_

                Similar content383

                See all similar

                Cited by53

                See all cited by

                Most referenced authors724

                See all reference authors