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The increased applications of nanomaterials in industry and biomedicine have resulted in a rising concern about their possible toxic impacts on living organisms. It has been claimed that the phytosynthesized nanomaterials have lower toxicity in comparison to their chemically synthesized counterparts. Therefore, it is important to evaluate their toxic effects on the environment. In the present study, we investigated the toxic effects of microwave-synthesized silver-reduced graphene oxide nanocomposites (MS-Ag-rGO) on . Algal cells were treated by 1, 2, 4 and 6 mg L MS-Ag-rGO for 24 h. The obtained data with three replicates were examined using analysis of variance. Analysis of different growth parameters revealed that MS-Ag-rGO possessed significant dose-dependent toxic effect on . Scanning electron microscope and fluorescence microscope images of the treated cells established morphological shrinkages and alteration in position of nucleoli. Moreover, reduction in the phenol and flavonoid contents, enhancement of HO content, changes in the antioxidant enzymes activity and decreases in the growth parameters as well as photosynthetic pigments quantities confirmed the toxicity of MS-Ag-rGO to the cells. Our findings revealed that MS-Ag-rGO possessed higher toxicity on than Ag-rGO synthesized by hydrothermal technique.
This article was published in the following journal.
Name: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
In this work, we focused on facile preparation of ternary nanocomposites containing TiO nanosheets, reduced graphene oxide and different quantities of silver for photocatalytic treatment of tetracycli...
In present study, reductive graphene oxide and silver nanoparticles co-comodified TiO nanotube arrays were prepared, and which was investigated to degrade tetrabromobisphenol A. The arrays co-modified...
We report a novel strain sensor based on Reduced Graphene Oxide (rGO) with Palladium (Pd) nano-composite. The sensor was fabricated on the SS304 stainless-steel substrate using a screen-printing metho...
Facilitated transport membrane for separating light olefins, using transition metals like silver and copper as carriers, is promising to replace those traditional energy-consumption methods. Here, we ...
The graphene-based nanomaterials have been measured as a most promising nanomaterials in the various fields. Graphene oxide having attractive and effective attention in the modified of medicine. Also,...
GGO was commonly observed recently.Radiofrequency ablation has been widely applied in the treatment of patients with GGO. No study had explored the microwave ablation in the treatment of G...
This is a two-stage feasibility study to determine if focussed microwave energy is a suitable treatment for Actinic Keratoses (AK). The two study stages are as follows: Stage 1: ...
Nanoparticles (NPs) are minute pieces of material to which we are exposed every day in the air we breathe. Some are naturally occurring and have no impact on health, whereas others are pro...
The specific aims of this study are: 1. To determine the safety and feasibility of treating patients with a combination of MRI guided stereotactic body radiation therapy and microw...
Silver nitrate treatment of Bartholin's cyst or abscess will be compared to marsupialization treatment. It is expected that silver nitrate treatment is effective, simple, inexpensive and ...
The use of silver, usually silver nitrate, as a reagent for producing contrast or coloration in tissue specimens.
A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.
A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6)
Silver. An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA.
Multiple Sclerosis MS
Multiple sclerosis (MS) is the most common disabling neurological condition affecting 100,000 young adults in the UK. The condition results from autoimmune damage to myelin, causing interference in nerve signaling. Symptoms experienced depend on the pa...