scholarly journals Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Mohamed Awad Fagier
Keyword(s):  
Zinc Oxide ◽  
Green Synthesis ◽  
Zinc Oxide Nanoparticles ◽  
Vital Role ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
High Electron ◽  
Zno Nps ◽  
Factors Affecting ◽  
Photodegradation Efficiency

In recent years, nanoparticles synthesis by green synthesis has gained extensive attention as a facile, inexpensive, and environmentally friendly method compared with chemical and physical synthesis methods. This review covered the biosynthesis of zinc oxide nanoparticles (ZnO NPs), including the procedure and mechanism. Factors affecting the formation of ZnO NPs are discussed. The presence of active bioorganic molecules in plant extract played a vital role in the formation of ZnO NPs as a natural green medium in the metallic ion reduction processes. ZnO NPs exhibit attractive photocatalysis properties due to electrochemical stability, high electron mobility, and large surface area. In this review, the procedure and mechanism of the ZnO photocatalysis process are studied. The effects of dyes amount, catalysts, and light on photodegradation efficiency are also considered. This review provides useful information for researchers who are dealing with green synthesis of ZnO NPs. Moreover, it can provide investigators with different perceptions towards the efficiency of biosynthesized ZnO NPs on dyes degradation and its restrictions.

scholarly journals Plant Mediated Green Synthesis of Zinc Oxide Nanoparticles for Burn Wound Therapy

2020 ◽  
Author(s):  
Mohd Riyaz Beg ◽  
Shital Ghodinde ◽  
Vidhi Gupta
Keyword(s):  
Antimicrobial Activity ◽  
Wound Healing ◽  
Zinc Oxide ◽  
Green Synthesis ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Burn Wound ◽  
Zno Nps ◽  
Burn Wounds ◽  
Burn Wound Healing

In this changing world, we all are surrounded by the surmountable risk of getting injured. Amongst various risk factors, major burns are the most distressing and catastrophic. Burn wounds are not easy to heal via natural healing process and ultimately ended up with scar formation. If the degree of burn is high then the loss of tissue and its function is very common. To fasten-up the natural burn wound healing; zinc, an essential trace element is found to be very much effective. But due to its’ particle size limitation, less contact with wounded cells and tissues, and high inherent toxicity restrict its use. Needlessly, zinc is an element with dual action i.e. both antimicrobial and wound healing it is a prime choice to apply its aptitude in burn wound healing. To overcome the documented limitations zinc has converted to nanoparticle form. Zinc oxide nanoparticles, in particular, have attained ample of interest due to their unique properties and potential antimicrobial activity along with wound healing activity which makes it promising for the healing of topical burn wounds. Plant mediated green synthesis of nano-metal oxide particles is gaining a lot of significance due to its simplicity, eco-friendliness and extensive antimicrobial activity and recommended as an appealing substitute to not only physical methods but also chemical methods avoiding the use of the high rate of toxic chemicals and extreme surroundings. This study includes ZnO NPs role in burn wound healing with Phyto-mediated synthesis methods to provide evidence of their potential applications. Additionally, it provides an overview of traditional methods used for the synthesis of ZnO nanoparticles and characterization techniques to obtain information concerning the size, shape and optical properties along with toxicity and safety concern of ZnO NPs and its biomedical applications.

Facile green synthesis of zinc oxide nanoparticles (ZnO NPs): antibacterial and photocatalytic activities

2019 ◽  
Vol 6 (10) ◽  
pp. 1050b4 ◽  
Author(s):  
H Chemingui ◽  
T Missaoui ◽  
J Chékir Mzali ◽  
T Yildiz ◽  
M Konyar ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Green Synthesis ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
Photocatalytic Activities

Green synthesis and characterization of zinc oxide nanoparticles using carboxylic curdlan and their interaction with bovine serum albumin

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77752-77759 ◽  
Author(s):  
Jing-Kun Yan ◽  
Yao-Yao Wang ◽  
Lin Zhu ◽  
Jian-Yong Wu
Keyword(s):  
Zinc Oxide ◽  
Bovine Serum Albumin ◽  
Green Synthesis ◽  
Bovine Serum ◽  
Zinc Oxide Nanoparticles ◽  
Synthesis And Characterization ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
Polyglucuronic Acid

Carboxylic curdlan (Cc), as a versatile β-1,3-polyglucuronic acid derivative, was used as both reducing and capping agents for the green synthesis of zinc oxide nanoparticles (ZnO NPs).

Green Route for the Fabrication of ZnO Nanoparticles and Potential Functionalization with Chitosan Using Cross-linkers: A Review

2021 ◽  
Vol 3 (1) ◽  
pp. 1-25
Author(s):  
Hemra Hamrayev ◽  
Kamyar Shameli ◽  
Mostafa Yusefi ◽  
Serdar Korpayev
Keyword(s):  
Zinc Oxide ◽  
Metal Oxide ◽  
Green Synthesis ◽  
Zno Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Zno Nps ◽  
Biological Sources ◽  
Physical And Chemical

Zinc oxide is of significant importance for many industries due to its versatile properties, which have been enhanced with the production of this material in the nanoscale. Recent interest in the preparation of metal oxide nanoparticles using biological approaches has been reported in the literature. This technique known as “green synthesis” is an environmentally benign process than conventional methods like physical and chemical synthesis methods. Zinc oxide nanoparticles (ZnO-NPs) have been successfully obtained by green synthesis using different biological substrates like chitosan. Chitosan is biocompatible, biodegradable polymer having exclusive physical and chemical properties. Chitosan/metal oxide nanocomposite is a promising nanomaterial with enhanced properties for multiple functionalities. Therefore, this review discusses favorable approach in the formation of cross-linked Chitosan/ZnO nanocomposites attracting significant attention in various fields such biomedical due to their unique biodegradable, biocompatible, non-toxic nature. The use of biological sources, fabrication of green synthesized ZnO nanoparticles and its applications is briefly discussed. Overall, this review is a comprehensive study for the synthesis of ZnO-NPs using biological sources counting on their features and applications.

scholarly journals Photocatalytic study of organosilane-modified zinc oxide nanoparticles

2015 ◽  
Vol 26 (2) ◽  
pp. 61-66
Author(s):  
Aurel Tăbăcaru ◽  
Mariana Buşilă ◽  
Viorica (Ghisman) Pleşcan ◽  
Viorica Muşat
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Photocatalytic Performance ◽  
Uv Light ◽  
Uv Exposure ◽  
Oxide Nanoparticles ◽  
Light Sources ◽  
Variable Amount ◽  
Zno Nps ◽  
Photodegradation Efficiency

Abstract In our recent studies, we have investigated the tunability of optical properties of zinc oxide nanoparticles (ZnO NPs) through surface modification with organosilane surfactants. In the present paper, the effect of ZnO NPs modified with variable amount of 3-(trimethoxysilyl)propylmethacrylate (MPS) surfactant was investigated toward the photocatalytic degradation of methylene blue (MB), using two different UV light sources emitting at 254 nm and 365 nm. While the maximum photodegradation efficiency of 63% was reached by ZnO NPs loaded with the highest concentration of MPS upon exposure at 254 nm, in the case of UV exposure at 365 nm an opposite photodegradation trend was observed. Actually, a significant photodegradation efficiency of 95% was recorded by the unmodified ZnO, followed by ZnO NPs modified with 2% MPS for which the photodegradation efficiency amounted to 80%, thus highlighting their best photocatalytic performance.

scholarly journals Green versus Chemical Precipitation Methods of Preparing Zinc Oxide Nanoparticles and Investigation of Antimicrobial Properties

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Bulcha Bekele ◽  
Anatol Degefa ◽  
Fikadu Tesgera ◽  
Leta Tesfaye Jule ◽  
R. Shanmugam ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Chemical Synthesis ◽  
Zinc Oxide Nanoparticles ◽  
Antimicrobial Properties ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Zno Nps ◽  
Precipitation Synthesis

Comparison of green and chemical precipitation method syntheses of zinc oxide nanoparticles (ZnO NPs) was performed, and antimicrobial properties were investigated. Avocado, mango, and papaya fruit extracts were carried out for the green synthesising methods, while the chemical precipitation method was chosen from chemical synthesis methods. Zinc nitrate was used as a salt precursor, whereas leaf extract was served as a reducing agent for green synthesising methods. In addition, sodium hydroxide, polyvinyl alcohol, and potassium hydroxide were used as reducing agents in the case of chemical precipitation synthesis methods. ZnO NPs were characterised by characterizing techniques such as Fourier transform infrared (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The antimicrobial activities of prepared nanoparticles were evaluated on Bacillus subtilis (B. subtilis), Staphylococcus aureus (S. aureus), and Salmonella typhimurium (S. typhimurium). The particle sizes of the prepared samples which were evaluated by the Scherrer equation were in the range of 11-21 nm for green synthesis, while 30-40 nm for chemical precipitation synthesis methods. Small agglomerations were observed from SEM results of prepared ZnO NPs from both methods. Prepared ZnO NPs were showed strong antimicrobial properties. From the result, the inhibition zone was in the range of 15-24 mm for the green route and 7–15 mm for chemical precipitation methods, where the standard drugs have 25 mm of the zone of inhibition. A green synthesised method of preparing ZnO NPs gives promising antimicrobial properties compared to chemical synthesis and is also eco-friendly and safe compared to the chemical synthesis.

scholarly journals Green Synthesis of Zinc Oxide Nanoparticles and Its Biomedical Applications: A Review

2021 ◽  
Vol 1 (1) ◽  
pp. 62-74
Author(s):  
Hemra Hamrayev ◽  
Kamyar Shameli ◽  
Serdar Korpayev
Keyword(s):  
Zinc Oxide ◽  
Green Synthesis ◽  
Zinc Oxide Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Research Progress ◽  
Future Research ◽  
Oxide Nanoparticles ◽  
Chemical Production ◽  
Zno Nps ◽  
Biomedical Fields

The rise of nanotechnology has brought to the world a new potential and broader perspective of what humanity can achieve through material manipulation at the nanoscale. In the past two decades, ZnO NPs have become one of the most popular metal oxide nanoparticles in biological applications due to their excellent biocompatibility, economic, and low toxicity. Interestingly, the green method of synthesis using plant sources have been found appropriate for the production of ZnO NPs dues to its numerous health, environmental, economic, and medicinal benefits. Due to the large rate of toxic chemicals and extreme environment employed in the physical and chemical production of these nanoparticles, green methods employing the use of plants, fungus, bacteria, and algae have been adopted. Zinc oxide nanoparticles have been successfully obtained by green synthesis using different biological substrates. ZnO NPs have emerged a promising potential in biomedicine, especially in the fields of anticancer and antibacterial fields, which are involved with their potent ability to trigger excess reactive oxygen species (ROS) production, release zinc ions, and induce cell apoptosis. This review summarizes the green synthesis and recent advances of ZnO NPs in the biomedical fields, which will be helpful for facilitating their future research progress and focusing on biomedical fields.

Sign in / Sign up

Export Citation Format

Share Document