Comparison of different properties of zinc oxide nanoparticles synthesized by the green (using Juglans regia L. leaf extract) and chemical methods

Publication date: Available online 24 April 2019Source: Journal of Molecular LiquidsAuthor(s): Elahe Darvishi, Danial Kahrizi, Elham ArkanAbstractRecently, biosynthesis method is a safety, environmentally friendly, single step, rapid and cost-effective, and it has attracted the attention of researchers due to more advantageous over chemical and physical methods. In the current research, zinc oxide (ZnO) nanoparticles have been synthesized by the green (using Juglans regia L. leaf extract) and chemical methods. The ZnO NPs were characterized by UV–visible (UV–VIS) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD). Field Emission Scanning Electron Microscopy (FESEM) to determine the morphology and size of the nanoparticles. Since different concentrations of walnut leaf extract and zinc acetate were used, the ZnO NPs were formed with different structures and size. Particles showed spherical, flower shape and irregular surface morphology. Also, the antimicrobial effect of ZnO nanoparticles was done against Escherichia coli, Pseudomonas aeruginosa and Acinetobacter baumannii resistant strain. The comparison of different properties of zinc oxide nanoparticles synthesized by the green and chemical methods was done. The antimicrobial effect of ZnO nanoparticles synthesized by the green method was more than the chemical. Cytotoxicity assay showed that cytotoxicity of ZnO nanoparticles synthesized by the green method was less than che...
Source: Journal of Molecular Liquids - Category: Molecular Biology Source Type: research

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Conclusion The impact of sepsis on the gut is manifold, e.g., sepsis mediated alteration of the gut-blood barrier and increase in the intestinal permeability, which may correlate with the phenomena of bacterial translocation and lymphatic activation (“toxic-lymph”). Systemic consequences of sepsis are widespread and concern to the coagulative system, the microbiome as well as enzymes, such as pancreatic proteases, MMPs and IAPs. Nevertheless, the therapeutic approaches for modulating the mucosal immune system are still rarely effective in daily routine. Recent published studies showing that treatment with FMT,...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This study provides a scientific perspective of the uniformity and stability of Xiaoqu jiu and might aid in controlling its manufacturing process. Introduction As a conventional solid fermentation of Baijiu, Xiaoqu jiu is a very popular Chinese liquor in Asia. Xiaoqu jiu can be classified into three main types: Qing-xiang; Yu ping shao; and Guilin-sanhua jiu. Of these, Qing-xiang (light in flavor) Xiaoqu jiu is different from Daqu jiu such as Jiang-, Nong- and Qing-xiang Baijiu, although the main materials are the same, which includes grain sorghum (Sorghum bicolor L. Moench) and rice hulls (Su et al., 2010). The ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusion: Saliva microbiota diversity and composition were significantly associated with body size and gender in Finnish children. Body size–specific saliva microbiota profiles open new avenues for studying the potential roles of microbiota in weight development and management. Introduction The composition and diversity of the human microbiota may be an important factor in health and disease (Cho and Blaser, 2012). Several studies have proposed that changes in the human gut microbiota may alter pathogenic mechanisms, which are associated with the development of obesity and insulin resistance (Musso et al., ...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
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Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
duz S Abstract Antimicrobial peptides (AMPs) have the potential to become valuable antimicrobial drugs in the coming years, since they offer wide spectrum of action, rapid bactericidal activity, and low probability for resistance development in comparison with traditional antibiotics. The search and improvement of methodologies for discovering new AMPs to treat resistant bacteria such as Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa are needed for further development of antimicrobial products. In this work, the software Peptide ID 1.0® was used to find new ant...
Source: Antonie van Leeuwenhoek - Category: Microbiology Authors: Tags: Antonie Van Leeuwenhoek Source Type: research
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Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
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Source: Applied Organometallic Chemistry - Category: Chemistry Authors: Tags: FULL PAPER Source Type: research
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Source: NHS News Feed - Category: Consumer Health News Tags: Lifestyle/exercise Source Type: news
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Source: Memorias do Instituto Oswaldo Cruz - Category: Infectious Diseases Authors: Tags: Mem Inst Oswaldo Cruz Source Type: research
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Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research
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