Publications by authors named "Ahmad F Talebi"
Article Synopsis
- The COVID-19 pandemic caused by SARS-CoV-2 led to millions of deaths and was complicated by the virus's rapid mutation, requiring effective variant identification and classification.
- Researchers analyzed 82,802 whole genomes from various SARS-CoV-2 variants using a single-layer 1D-CNN model, achieving high accuracy and precision in classification.
- The study also examined CNN feature maps, revealing significant mutations and their potential functional impacts, demonstrating the model’s ability to extract crucial features for understanding variant differences.
Article Synopsis
- The text discusses the urgent need for new antibiotics due to rising microbial resistance, highlighting antimicrobial peptides (AMPs) like AurH1, a modified version of Aurein1.2, for their unique antifungal properties.
- In this study, AurH1 was synthetically modified into two forms: acylated (Ac-AurH1) and amidated (AurH1-NH), with tests conducted on their antifungal activity, cytotoxicity, impact on cancer cells, and effects in human serum.
- Results indicated that amidation at AurH1's C-terminal enhances its antifungal effectiveness and cytotoxicity without altering its mechanism of action, suggesting promise for further research in animal studies.
The bioavailability, solubility, stability, and evaporation rate of essential oils can all be improved by using appropriate nanocarriers. This study describes the simple biosynthesize, physicochemical, optical, and biological activity of Chitosan-Ferula gummosa essential oil (CS-FEO) nanocomposite. The prepared nanocomposite was evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) mapping, transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), UV-vis and photoluminescence (PL) techniques.
View Article and Find Full Text PDFDescription of novel species of , and using a polyphasic approach.
Int J Syst Evol Microbiol
May 2020
Five cyanobacterial strains with -like morphology from different localities of the Mazandaran province of Iran were characterized using a polyphasic approach. Three strains clustered within the clade whereas one each of the remaining two strains clustered within the genera and . The phylogenetic positioning of all the strains by the bayesian inference, neighbour joining and maximum parsimony methods inferred using 16S rRNA gene indicated them to represent novel species of the genera , and .
View Article and Find Full Text PDFData on environmental analysis of natural antioxidant production from walnut husk by a solar photovoltaic-driven system as a replacement for potentially carcinogenic synthetic antioxidants.
Data Brief
February 2020
In order to develop a product sustainably, multiple analyses, including comprehensive environmental assessment, are required. Solar-assisted production of walnut husk methanolic extract (WHME) as a natural antioxidant for biodiesel was scrutinized by using the life cycle assessment (LCA) approach. More specifically, the environmental sustainability of WHME antioxidant was evaluated and compared to that of propyl gallate (PG), the most widely used synthetic biodiesel antioxidant, under two scenarios.
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- Algae have significant industrial applications, particularly in reducing the costs of biofuel co-production and improving environmental bioremediation.
- The study focuses on how algae can absorb or neutralize heavy metal ions, including discussions on cellular structure, pretreatment, and the potential use of genetic engineering to enhance biosorption performance.
- Key factors influencing biosorption capacity, such as metal ion concentration, biomass concentration, pH, time, and temperature, are evaluated to promote the development of cost-effective algal cultivation methods with strong bioremediation capabilities.
Exploitation of renewable sources of energy such as algal biodiesel could turn energy supplies problem around. Studies on a locally isolated strain of Dunaliella sp. showed that the mean lipid content in cultures enriched by 200 mg L(-1) myoinositol was raised by around 33% (1.
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- Developing a reliable method for transforming the unicellular green algae Chlorella vulgaris could enhance its use in applications like biodiesel production.
- The study measured volumetric lipid productivity (VLP) and found that C. vulgaris had the highest level (79.08 mg l(-1)day(-1)), surpassing other strains.
- The transformation process involved using a plasmid with a reporter gene and a kanamycin marker, and after selection, the cells demonstrated stability and successful integration of the transformation in the genome, laying the groundwork for future enhancement of lipid production.