scholarly journals Green Synthesis of Zinc Oxide Nanoparticles via Algal Route and its Action on Cancerous Cells and Pathogenic Microbes

2020 ◽  
Vol 3 (1) ◽  
pp. 15-27
Author(s):  
Priyankari Bhattacharya ◽  
Kasturi Chatterjee ◽  
Snehasikta Swarnakar ◽  
Sathi Banerjee

Application of metal oxide nanoparticles for treatment of melanoma cells and microbes is being investigated. Zinc oxide nanoparticles (ZnO NPs) deserve special mention where particles cause destruction of melanoma cells with minimal damage to healthy cells. In the present study, pure phase ZnO NPs with particle size of 3.1 nm were synthesized by green route using algal extract. Skin melanoma (B16F10) cells were treated with synthesized ZnO NP and compared with commercial ZnO NPs and analysed for ED50 for cellular viability using 3% (w/v) of the doses. Sensitivity of B16F10 cells towards green synthesized ZnO NP was found to be more than commercial ZnO NPs. Results showed greater reduction in viability of cells exposed to green synthesized ZnO NPs and with increasing dose of the ZnO NPs, percentage viability of cells gradually reduced. 50% decrease in cellular viability (ED50) was obtained for green synthesized ZnO NP at 3% dose while commercial ZnO exhibited ED50 at 6% of doses. The ZnO NP also showed antimicrobial activity against Pseudomonas sp. and Staphylococcus sp. Zone of inhibition (ZOI) exhibited by Pseudomonas aeruginosa and Staphylococcus aureus for disc diffusion and well diffusion assay was around 10-22 mm and 9-12mm respectively.

2021 ◽  
Vol 1 (1) ◽  
pp. 62-74
Author(s):  
Hemra Hamrayev ◽  
Kamyar Shameli ◽  
Serdar Korpayev

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.


2017 ◽  
Vol 16 (2) ◽  
pp. 41-52
Author(s):  
N Shobhaa ◽  
N Nandab ◽  
B M Nagabhushana

Several methods are used to counter the deadly disease cancer. Zinc oxide nanoparticles (ZnO NPs) is one of the metal oxide nanoparticles which had been used in anti-cancer activities due to its large bandwidth and high exciting binding energy and it has potential applications like antibacterial, antifungal, anti-diabetic, anti-inflammatory, wound healing, antioxidant, optic properties and also which holds promise to treat cancer effectively. Studies have shown that Zinc metal oxide nano particles induce cytotoxicity in cancer cells. The mechanism for antitumor could work through apoptosis or the generation of reactive oxygen species or and necrosis, among other possibilities. This review is on some of the most significant antitumor results obtained with zinc oxide nanoparticles depending on their size, surface morphology, methods of preparation and also cytotoxicity result.


2018 ◽  
Vol 2018 ◽  
pp. 1-18 ◽  
Author(s):  
Jinhuan Jiang ◽  
Jiang Pi ◽  
Jiye Cai

Zinc oxide nanoparticles (ZnO NPs) are used in an increasing number of industrial products such as rubber, paint, coating, and cosmetics. 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. 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. In addition, zinc is well known to keep the structural integrity of insulin. So, ZnO NPs also have been effectively developed for antidiabetic treatment. Moreover, ZnO NPs show excellent luminescent properties and have turned them into one of the main candidates for bioimaging. Here, we summarize the 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.


2021 ◽  
Author(s):  
Sameh Shaaban ◽  
Ahmed M. Fayez ◽  
Mahmoud Abdelaziz ◽  
Doaa Abou El-ezz

Abstract Rheumatoid arthritis (RA) is a chronic autoimmune disease that affects the lining of the synovial joints and approximately affects 0.5-1% of the total population imposing a socioeconomic burden. Currently, there is no cure for RA, but receiving proper medical care at early stages of the disease is of high importance, to prevent the progressive disability and premature death. Using rat animal model injected with Complete Freund’s adjuvant proved to be successful in induction of a state highly resembling RA in human. Zinc oxide nanoparticles (ZnO NPs) are considered as one of the most important metal oxide nanoparticles due to their exclusive properties, and they are currently merged in several biological applications due to their biocompatibility, low cost, and high safety profile. In this study, we demonstrated the novel possible beneficial effects of using zinc oxide nanoparticles, on such devastating severe disease. Zinc oxide nanoparticles (ZnO NPs) proved to reduce the adjuvant-induced increased productions of IL-1β, TNF-α, IL-10, total leukocyte count, rheumatoid factor, anti-CCP levels in rats, suggesting an interesting option to be available either alone or in combinations to better control RA.In conclusion we recommend the expansion of more in vivo studies to highlight the benefits which could be obtained of nanoparticles either alone or in combination with the known anti-arthritic and/or anti-inflammatory agents; giving rise to new protocols to maximize the control of RA.


2019 ◽  
Vol 20 (7) ◽  
pp. 542-550 ◽  
Author(s):  
Nahla S. El-Shenawy ◽  
Reham Z. Hamza ◽  
Fawziah A. Al-Salmi ◽  
Rasha A. Al-Eisa

Background: Zinc oxide nanoparticles (ZnO NPs) are robustly used biomedicine. Moreover, no study has been conducted to explore the consequence of green synthesis of ZnO NPs with Camellia sinensis (green tea extract, GTE) on kidneys of rats treated with monosodium glutamate (MSG). Methods: Therefore, the objective of the research was designed to explore the possible defensive effect of GTE/ZnO NPs against MSG-induced renal stress investigated at redox and histopathological points. Results: The levels of urea and creatinine increased as the effect of a high dose of MSG, in addition, the myeloperoxidase and xanthine oxidase activates were elevated significantly with the high dose of MSG. The levels of non-enzymatic antioxidants (uric acid, glutathione, and thiol) were decreased sharply in MSG-treated rats as compared to the normal group. Conclusion: The data displayed that GTE/ZnO NPs reduced the effects of MSG significantly by reduction of the level peroxidation and enhancement intracellular antioxidant. These biochemical findings were supported by histopathology evaluation, which showed minor morphological changes in the kidneys of rats.


Author(s):  
Mohammad Faizan ◽  
Fangyuan Yu ◽  
Chen Chen ◽  
Ahmad Faraz ◽  
Shamsul Hayat

: Abiotic stresses arising from atmosphere change belie plant growth and yield, leading to food reduction. The cultivation of a large number of crops in the contaminated environment is a main concern of environmentalists in the present time. To get food safety, a highly developed nanotechnology is a useful tool for promoting food production and assuring sustainability. Nanotechnology helps to better production in agriculture by promoting the efficiency of inputs and reducing relevant losses. This review examines the research performed in the past to show how zinc oxide nanoparticles (ZnO-NPs) are influencing the negative effects of abiotic stresses. Application of ZnO-NPs is one of the most effectual options for considerable enhancement of agricultural yield globally under stressful conditions. ZnO-NPs can transform the agricultural and food industry with the help of several innovative tools in reversing oxidative stress symptoms induced by abiotic stresses. In addition, the effect of ZnO-NPs on physiological, biochemical, and antioxidative activities in various plants have also been examined properly. This review summarizes the current understanding and the future possibilities of plant-ZnO-NPs research.


Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 713
Author(s):  
Nina Melnikova ◽  
Alexander Knyazev ◽  
Viktor Nikolskiy ◽  
Peter Peretyagin ◽  
Kseniia Belyaeva ◽  
...  

A design of new nanocomposites of bacterial cellulose (BC) and betulin diphosphate (BDP) pre-impregnated into the surface of zinc oxide nanoparticles (ZnO NPs) for the production of wound dressings is proposed. The sizes of crystalline BC and ZnO NPs (5–25%) corresponded to 5–6 nm and 10–18 nm, respectively (powder X-ray diffractometry (PXRD), Fourier-infrared (FTIR), ultraviolet (UV), atomic absorption (AAS) and photoluminescence (PL) spectroscopies). The biological activity of the wound dressings “BC-ZnO NPs-BDP” was investigated in rats using a burn wound model. Morpho-histological studies have shown that more intensive healing was observed during treatment with hydrophilic nanocomposites than the oleophilic standard (ZnO NPs-BDP oleogel; p < 0.001). Treatment by both hydrophilic and lipophilic agents led to increases in antioxidant enzyme activity (superoxide dismutase (SOD), catalase) in erythrocytes and decreases in the malondialdehyde (MDA) concentration by 7, 10 and 21 days (p < 0.001). The microcirculation index was restored on the 3rd day after burn under treatment with BC-ZnO NPs-BDP wound dressings. The results of effective wound healing with BC-ZnO NPs-BDP nanocomposites can be explained by the synergistic effect of all nanocomposite components, which regulate oxygenation and microcirculation, reducing hypoxia and oxidative stress in a burn wound.


Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 584
Author(s):  
Omnia M. Elshayb ◽  
Khaled Y. Farroh ◽  
Heba E. Amin ◽  
Ayman M. Atta

Applications of metal oxide nanoparticles in the agriculture sector are being extensively included as the materials are considered superior. In the present work, zinc oxide nanoparticle (ZnO NPs), with a developing fertilizer, is applied in the fortification of rice grain yield and nutrient uptake enhancement. To evaluate the role of ZnO NP, two field experiments were conducted during the 2018 and 2019 seasons. ZnO NPs were small, nearly spherical, and their sizes equal to 31.4 nm, as proved via the dynamic light scattering technique. ZnO NPs were applied as a fertilizer in different concentrations, varying between 20 and 60 mg/L as a foliar spray. The mixture of ZnSO4 and ZnO NP40 ameliorated yield component and nutrients (N, K, and Zn) uptake was enhanced compared to traditional ZnSO4 treatment. Nevertheless, the uptake of the phosphorous element (P) was adversely affected by the treatment of ZnO NPs. Thus, treatment via utilizing ZnO NPs as a foliar with a very small amount (40 ppm) with of basal ZnSO4 led to a good improvement in agronomic and physiological features; eventually, higher yield and nutrient-enriched rice grain were obtained.


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