scholarly journals Review of photocatalytic and antimicrobial properties of metal oxide nanoparticles

2021 ◽  
Vol 22 (1) ◽  
pp. 5-15
Author(s):  
Aswini Rangayasami ◽  
Karthik Kannan ◽  
Murugesan Subban ◽  
Devi Radhika
Keyword(s):  
Metal Oxide ◽  
Photocatalytic Degradation ◽  
Metal Oxide Nanoparticles ◽  
Antimicrobial Properties ◽  
Wide Band ◽  
Antimicrobial Activities ◽  
Research Progress ◽  
Oxide Nanoparticles ◽  
Natural Contamination ◽  
Toxicity Mechanisms

Photocatalytic degradation is an effective method to alleviate environmental pollution which is caused by organic pollutants. The expanding natural contamination has attracted the overall scientists to deal with the advancement of photocatalyst effectively depends on semiconductor for the treatment of defiled water assets by different natural poisons that are delivered from numerous industries. In this work, the research progress of properties and applications of photocatalytic and antimicrobial activities and understanding of the toxicity mechanisms of different metal oxide nanoparticles are reviewed. The metal oxide nanoparticles are a wide band hole semiconductor that can be eager to create electron opening sets when transmitted with light. Photographs are an actuated electron opening that instigates power hydrogen, oxygen, and debases inorganic/natural/organic mixes to make power. This review aims to examine the wide biological and mechanisms of photocatalytic degradation and antimicrobial applications.

scholarly journals Metal Oxide Nanoparticles Against Bacterial Biofilms: Perspectives and Limitations

2020 ◽  
Vol 8 (10) ◽  
pp. 1545 ◽  
Author(s):  
Liubov Shkodenko ◽  
Ilia Kassirov ◽  
Elena Koshel
Keyword(s):  
Antibiotic Resistance ◽  
Comparative Analysis ◽  
Metal Oxide ◽  
Metal Oxide Nanoparticles ◽  
Antimicrobial Properties ◽  
Bacterial Biofilms ◽  
Oxide Nanoparticles ◽  
Promising Solution ◽  
Low Efficiency ◽  
Al2o3 Nps

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.

A Review on Antimicrobial Properties of Metal Nanoparticles

2020 ◽  
Vol 20 (6) ◽  
pp. 3303-3339 ◽  
Author(s):  
Saee Gharpure ◽  
Aman Akash ◽  
Balaprasad Ankamwar
Keyword(s):  
Titanium Dioxide ◽  
Metal Oxide ◽  
Biomedical Applications ◽  
Antimicrobial Agents ◽  
Metal Oxide Nanoparticles ◽  
Antimicrobial Properties ◽  
Multidrug Resistant ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Micro Organisms

The field of nanotechnology elaborates the synthesis, characterization as well as application of nanomaterials. Applications of nanoparticles in various fields have interested scientists since decades due to its unique properties. Combination of pharmacology with nanotechnology has helped in development of newer antimicrobial agents in order to control the ever increasing multidrug resistant micro-organisms. Properties of metal and metal oxide nanoparticles like silver, gold, titanium dioxide as well as magnesium oxide as antimicrobial agents are very well known. This review elaborates synthesis methods and antimicrobial mechanisms of various metal as well as metal oxide nanoparticles for better understanding in order to utilize their potentials in various biomedical applications.

Second generation periodic table-based descriptors to encode toxicity of metal oxide nanoparticles to multiple species: QSTR modeling for exploration of toxicity mechanisms

2018 ◽  
Vol 5 (11) ◽  
pp. 2742-2760 ◽  
Author(s):  
Priyanka De ◽  
Supratik Kar ◽  
Kunal Roy ◽  
Jerzy Leszczynski
Keyword(s):  
Risk Assessment ◽  
Metal Oxide ◽  
In Silico ◽  
Periodic Table ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Gap Filling ◽  
Toxicity Mechanisms ◽  
Data Gap ◽  
Multiple Species

The application of in silico methods in the risk assessment of metal oxide nanoparticles (MNPs) and data gap filling has found profound usability.

Novel Ternary Metal Oxide Nanoparticles (La2Cu0.8Zn0.2O4) as Potential Photocatalyst for Visible Light Photocatalytic Degradation of Methylene Blue and Desulfurization of Dibenzothiophene

Nano Futures ◽  
2021 ◽  
Author(s):  
Molood Barmala ◽  
Mohammad Behnood
Keyword(s):  
Methylene Blue ◽  
Metal Oxide ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Desulfurization Rate ◽  
Ternary Metal ◽  
Photocatalytic Reactions ◽  
Visible Light Photocatalytic

Abstract In this work, we present preparation of novel ternary metal oxide nanoparticles, La2Cu0.8Zn0.2O4 (LCZO), using simple co-precipitation method. The crystalline structure, morphology and composition of the prepared LCZO nanoparticles were characterized by XRD, SEM and EDX analysis. The DRS investigation shows the LCZO nanoparticles have considerable light absorption in the visible light region. Also, the LCZO nanoparticles possess the band-gap energy of 2.82 eV. To investigate the visible light photocatalytic potential of the prepared LCZO nanoparticles, two photocatalytic reactions were conducted toward degradation of methylene blue (MB) solution and desulfurization of dibenzothiophene (DBT). In the presence of 3:1 molar ratio of H2O2/DBT, the high photocatalytic desulfurization rate (93.7%) of dibenzothiophene (DBT) was obtained over 0.2 gr of LCZO photocatalyst. In addition, the photocatalytic degradation rate of methylene blue (MB) solution was 91.4%. The mechanism involving both photocatalytic reactions were studied using different radical scavenging agents which showed that the hydroxyl radicals (OH•) are responsible for highly efficient desulfurization and degradation reactions. Moreover, reusability experiments reveal that the prepared LCZO photocatalyst has great stability and recyclability for both desulfurization of DBT and degradation of MB after 6 reaction cycles.

Interactions of metal-based nanoparticles (MBNPs) and metal-oxide nanoparticles (MONPs) with crop plants: a critical review of research progress and prospects

2020 ◽  
Vol 28 (3) ◽  
pp. 294-310 ◽  
Author(s):  
Weitao Liu ◽  
Aurang Zeb ◽  
Jiapan Lian ◽  
Jiani Wu ◽  
Hongxia Xiong ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Agricultural Soil ◽  
Biological Activities ◽  
Metal Oxide Nanoparticles ◽  
Research Priorities ◽  
Crop Plants ◽  
Engineered Nanoparticles ◽  
Research Progress ◽  
Future Research ◽  
Oxide Nanoparticles

Over the past decade, the production and applications of metal-based and metal-oxide nanoparticles (MBNPs and MONPs, respectively) have increased significantly due to their enhanced physicochemical properties and biological activities when compared with their bulk parent materials. Once MBNPs and MONPs enter agricultural soil via direct or indirect pathways, they can interact with crop plants and thus pose a threat to both animal and human health through food chain pathways. Although many review articles on engineered nanoparticles have been published, few have focused on the interactions of MBNPs and MONPs with crop plants and their current applications. Therefore, we reviewed the sources and behaviors of MBNPs and MONPs in agricultural soil, physiological and biochemical effects of MBNPs and MONPs on plants, uptake, translocation of MBNPs and MONPs in crop plants, factors affecting the interaction between MBNPs and MONPs and plants, and the applications of MBNPs and MONPs. Lastly, we propose where the future research priorities should be focused to provide a better understanding of MBNPs and MONPs. This review will help to promote scientific research regarding MBNPs and MONPs and to understand the risks and benefits of their association with plants and will contribute to the advancement of nanotechnology.

Green synthesis: Photocatalytic degradation of textile dyes using metal and metal oxide nanoparticles-latest trends and advancements

2019 ◽  
Vol 50 (24) ◽  
pp. 2617-2723 ◽  
Author(s):  
P. C. Nagajyothi ◽  
S. V. Prabhakar Vattikuti ◽  
K. C. Devarayapalli ◽  
K. Yoo ◽  
Jaesool Shim ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Green Synthesis ◽  
Photocatalytic Degradation ◽  
Metal Oxide Nanoparticles ◽  
Textile Dyes ◽  
Oxide Nanoparticles

scholarly journals Bio-Mediated Synthesis of Nanomaterials for Packaging Applications

2021 ◽  
pp. 96-117
Keyword(s):  
Thermal Stability ◽  
Metal Oxide ◽  
Food Packaging ◽  
Metal Oxide Nanoparticles ◽  
Antimicrobial Properties ◽  
Oxide Nanoparticles ◽  
Packaging Materials ◽  
New Variety ◽  
Metal Metal ◽  
Mechanical Tensile

Change in lifestyle of humans in this present generation with huge dependence on packaging materials has encouraged several studies on development of new variety of packaging materials. Emphasis on replacement of existing non-biodegradable packaging materials with biodegradable materials paved the way for the use of biopolymers. Lack of properties, such as thermal stability and mechanical strength in biopolymers led to the development of biopolymer nanocomposites by adding metal/metal oxide nanoparticles as fillers into the biopolymers. Metal/metal oxide nanoparticles improve mechanical/tensile strength, thermal stability as well as antimicrobial properties of the binding and receiving polymer matrix. Bio-mediated synthesis of metal/metal oxide nanoparticles result in the development of novel packaging materials at a low cost and without releasing hazardous wastes into the environments. Novel packaging materials with metal/metal oxide nanoparticles as additives are capable of increasing the shelf life of food, in certain cases they act as indicators of quality food inside the package. Summarily, this present chapter focuses on bio-mediated synthesis of various metal/metal oxide nanoparticles and their applications in food packaging.

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