Antibacterial Activity of Copper Oxide (CuO) Nanoparticles Biosynthesized by Bacillus sp. FU4: Optimization of Experiment Design

Taran, Mojtaba; Rad, Maryam Shayani; Alavi, Mehran

doi:10.15171/ps.2017.30

Cited by 72 publications

(35 citation statements)

References 56 publications

(33 reference statements)

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“…The minimum inhibitory concentration (MIC) for CuO NPs against a wide range of Gram-negative and Gram-positive bacteria is 15 µg/mL to 100 µg/mL on average. [ 63 , 64 , 98 ]. In particular, MIC of CuO NPs for E. coli is 22 µg/mL, and for S. aureus is 15 µg/mL [ 63 , 64 ] .…”

Section: Effects Of Metal Oxide Nps On Plankton Cells and Biofilmmentioning

confidence: 99%

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Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

2020

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At present, there is an urgent need in medicine and industry to develop new approaches to eliminate bacterial biofilms. Considering the low efficiency of classical approaches to biofilm eradication and the growing problem of antibiotic resistance, the introduction of nanomaterials may be a promising solution. Outstanding antimicrobial properties have been demonstrated by nanoparticles (NPs) of metal oxides and their nanocomposites. The review presents a comparative analysis of antibiofilm properties of various metal oxide NPs (primarily, CuO, Fe3O4, TiO2, ZnO, MgO, and Al2O3 NPs) and nanocomposites, as well as mechanisms of their effect on plankton bacteria cells and biofilms. The potential mutagenicity of metal oxide NPs and safety problems of their wide application are also discussed.

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Section: Effects Of Metal Oxide Nps On Plankton Cells and Biofilmmentioning

confidence: 99%

“…[ 63 , 64 , 98 ]. In particular, MIC of CuO NPs for E. coli is 22 µg/mL, and for S. aureus is 15 µg/mL [ 63 , 64 ] .…”

Section: Effects Of Metal Oxide Nps On Plankton Cells and Biofilmmentioning

confidence: 99%

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

2020

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“…Bacteria of various species are capable of accumulating nanoparticles of cuprum, in particular Shewanella loihica (Lv et al, 2018), Bacillus sp. FU4 (Taran et al, 2017), Shewanella oneidensis (Kimber et al, 2018). Platinum nanoparticles were obtained by green synthesis with the participation of Streptomyces sp.…”

Section: Eco-friendly Synthesis Of Nanoparticles By Bacteriamentioning

confidence: 99%

Bacterial synthesis of nanoparticles: A green approach

et al. 2020

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In recent decades, the attention of scientists has been drawn towards nanoparticles (NPs) of metals and metalloids. Traditional methods for the manufacturing of NPs are now being extensively studied. However, disadvantages such as the use of toxic agents and high energy consumption associated with chemical and physical processes impede their continued use in various fields. In this article, we analyse the relevance of the use of living systems and their components for the development of "green" synthesis of nano-objects with exceptional properties and a wide range of applications. The use of nano-biotechnological methods for the synthesis of nanoparticles has the potential of large-scale application and high commercial potential. Bacteria are an extremely convenient target for green nanoparticle synthesis due to their variety and ability to adapt to different environmental conditions. Synthesis of nanoparticles by microorganisms can occur both intracellularly and extracellularly. It is known that individual bacteria are able to bind and concentrate dissolved metal ions and metalloids, thereby detoxifying their environment. There are various bacteria cellular components such as enzymes, proteins, peptides, pigments, which are involved in the formation of nanoparticles. Bio-intensive manufacturing of NPs is environmentally friendly and inexpensive and requires low energy consumption. Some biosynthetic NPs are used as heterogeneous catalysts for environmental restoration, exhibiting higher catalytic efficiency due to their stability and increased biocompatibility. Bacteria used as nanofactories can provide a new approach to the removal of metal or metalloid ions and the production of materials with unique properties. Although a wide range of NPs have been biosynthetic and their synthetic mechanisms have been proposed, some of these mechanisms are not known in detail. This review focuses on the synthesis and catalytic applications of NPs obtained using bacteria. Known mechanisms of bioreduction and prospects for the development of NPs for catalytic applications are discussed.

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“…Taguchi method was applied for design and optimization of struvite stones formation under three factors of glucose, metformin, and protein. The reason for application of Taguchi design method is based on that this method makes cost effective conditions to optimize production by using less experiments than conventional methods [19][20][21]. In this way, nine experiments were carried out for three factors with three levels (Table 1).…”

Section: Taguchi Design Of Experimentsmentioning

confidence: 99%

Effects of Glucose, Metformin, and Protein on Formation of Flower-like Nanocomposites of Struvite in Infected Artificial Urine Medium by Methicillin-resistant Staphylococcus aureus (MRSA): New Report

Asadi¹,

Taran²,

Rad³

et al. 2019

Nano BioMed ENG

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Urinary tract infections (UTIs) are the reason for 15-70% of urinary stone disease (USD). Many diabetic patients suffer from USD resulting from bacterial infections by multi drug resistant (MDR) bacteria such as Staphylococcus aureus ATCC 43300. These bacteria can enhance struvite stones' formation in diabetic patients with UTIs. In this regard, hyperglycemia, proteinuria, and using of metformin drug may be important factors. Three parameters including glucose, metformin, and protein with their three levels of concentrations were determined by experimental design of Taguchi method to obtain optimized formation of struvite stones. Artificial urine medium was utilized for simulation of natural human urine. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) techniques were applied for evaluation of morphology and elemental compositions of formed calcium phosphate. This study showed highest concentration of struvite stones (0.512 g/L) under interaction conditions of 3×2×2 levels respectively for glucose, metformin, and protein. Results of SEM and EDAX analyses demonstrated clumped crystallite property and flower-like nanocomposites (NCs) of struvite stones with contribution of calcium (160.8) and phosphate (131.4) elements. It may be concluded from this investigation that therapy of MDR bacteria, hyperglycemia, and proteinuria can decrease urinary stone formation in diabetic patients by having UTIs.

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Antibacterial Activity of Copper Oxide (CuO) Nanoparticles Biosynthesized by Bacillus sp. FU4: Optimization of Experiment Design

Cited by 72 publications

References 56 publications

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

Bacterial synthesis of nanoparticles: A green approach

Effects of Glucose, Metformin, and Protein on Formation of Flower-like Nanocomposites of Struvite in Infected Artificial Urine Medium by Methicillin-resistant Staphylococcus aureus (MRSA): New Report

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