Evaluation of biofilm formation and expression of psl, pel, alg genes of Pseudomonas aeruginosa in exposure to detergents.

Pseudomonas aeruginosa has been in the center of attention for several years as an opportunistic human pathogen implicated in many severe acute and chronic infections particularly in immunocompromised patients. Its high persistence and resistance against many antimicrobial agents are mostly attributed to biofilm formation. Biofilms are microbial communities mainly consisting of extracellular polymeric substances that encapsulate bacteria together and protect them from extracellular stresses.

Plant mediated biosynthesis of MnO nanostructures and their biomedical applications.

Nanomaterials have drawn significant attention for their biomedical and pharmaceutical applications. In the present study, manganese tetra oxide (MnO) nanoparticles were prepared greenly, and their physicochemical properties were studied. acetone extract was used as a safely novel precursor for reducing and stabilizing nanoparticles.

Structural, optical, morphological, sun-light driven photocatalytic and antimicrobial investigations of AgS and Cu/AgS nanoparticles.

This study focusses on the preparation of silver sulphide (AgS) and Cu-doped AgS (Cu/AgS) nanoparticles (NPs) by sol-gel method and demonstrated their photocatalytic and antibacterial applications. The X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) analysis demonstrated that the prepared NPs are effectively crystallized in the polycrystalline single-phase monoclinic geometry of AgS. The optical bandgap is significantly reduced, and for both the sample the average grain size is observed to have narrowed from 42 nm to 23 nm.

Plant extract-mediated synthesis Cobalt doping in zinc oxide nanoparticles and their cytotoxicity and antibacterial performance.

In this research, zinc oxide (ZnO) nanoparticles doped with different percentages of produced cobalt using the green synthesis method. ZnO nanoparticles showed good cellular and microbial toxicity due to their high surface-to-volume ratio. Adding cobalt metal to the nanostructure can lead to the appearance of a new feature.

Bio-Characterization and Liquid Chromatography-Mass Spectrometry Analysis of Exopolysaccharides in Biofilm-Producing Cyanobacteria Isolated from Soil Crust: Exploring the Potential of Microalgal Biomolecules.

Exopolysaccharide-producing cyanobacterial strains in biological soil crusts are described, in addition to their chemical properties and antioxidant and flocculation activities. The EPSs from Pudukkottai blackish biological soil crusts (PBBSCs) showed significant amounts of total soluble proteins (0.1687 mg/mL) and carbohydrates (0.

Optimized synthesis of silver nanoparticles using the marine fungus and its application against resistant nosocomial pathogens.

The prevalence of bacterial infections in hospitals is rising, endangering currently accessible, efficient medical treatments and increasing demand for novel medications. Metal nanoparticles (NPs) are showing promise as materials for the development of treatments and preventative measures. This study investigated the potential of the fungus Aspergillus terreus to produce silver nanoparticles (AgNPs) as a means of creating green technology to synthesize NPs.

Evaluation of citrus pectin capped copper sulfide nanoparticles against Candidiasis causing Candida biofilms.

The incidence of candidiasis has significantly increased globally in recent decades, and it is a significant source of morbidity and mortality, particularly in critically ill patients. Candida sp. ability to generate biofilms is one of its primary pathogenic traits.

In vitro anticancer and antibacterial performance of biosynthesized Ag and Ce co-doped ZnO NPs.

The great potential of zinc oxide nanoparticles (ZnO NPs) for biomedical applications is attributed to their physicochemical properties. In this work, pure and Ag and Ce dual-doped ZnO NPs were synthesized through a facile and green route to examine their cytotoxicity in breast cancer and normal cells. The initial preparation of dual-doped nanoparticles was completed by the usage of taranjabin.

Unraveling the potential of pesticide-tolerant sp. augmenting biological and physiological attributes of (L.) under pesticide stress.

In the agricultural domain, chemical pesticides are repetitively and harshly used to kill harmful pests, but they often pose a serious threat to microbial diversity, soil fertility and agricultural output. To deal with these problems, pesticide-tolerant plant growth promoting (PGP) rhizobacterial strains are often used to combat pesticidal toxicity. Here, sp.

Optimized synthesis of mono and bimetallic nanoparticles mediated by unicellular algal (diatom) and its efficiency to degrade azo dyes for wastewater treatment.

The silver/palladium nanoparticles (Ag/Pd NPs) were efficiently absorb UV-Visible light and reveal greater photocatalytic activity as compared to monometallic NPs. The aim of this study is photodegradation of the industrial azo dye using bimetallic Ag/Pd NPs and monometallic Ag NPs in presence of UV light for wastewater treatment. Bacillariophyceae (diatom) algae extract was utilized for the green synthesized Ag and Ag/Pd NPs.

Photocatalytic and biological activities of green synthesized SnO nanoparticles using Chlorella vulgaris.

Aims: To produce tin oxide (SnO ) nanoparticles (NP) with microalga for use in azo dye-polluted wastewater treatment and to optimize the conditions to synthesize as small NPs as possible.

Methods And Results: The green microalga Chlorella vulgaris mediated NPs were synthesized after an optimization process utilizing the statistical response surface methodology (RSM). The optimized synthesis conditions were 200 W microwave power, 0.

Spirulina platensis mediated biosynthesis of Cuo Nps and photocatalytic degradation of toxic azo dye Congo red and kinetic studies.

The current research is designed to synthesis Copper oxide nanoparticles (CuO NPs) using Cyanobacterium in greener way. The NPs were synthesized using Spirulina platensis. The method is adopted for the less toxic, less cost and environment friendly method.

Bioremediation of ossein effluents using the filamentous marine cyanobacterium Cylindrospermum stagnale.

Wastewater containg proteinaceous ossein effluents are problematic to be treated. We studied the possibility to treat ossein effluents with the marine cyanobacterium strain Cylindrospermum stagnale. After optimizing the culture conditions of the bacterium, three different types of ossein effluents were tested: dicalcium phosphate (DCP), high total dissolved solids (HTDS) and low total dissolved (LTDS).

Bioremoval capacity of Co using Phormidium tenue and Chlorella vulgaris as biosorbents.

Microalgae sorbents are microalgae that have the potential to passively bind heavy metals/contaminants to their cellular structures in a process called biosorption. This study investigates the use of two species of microalgae to remove the toxic heavy metal cobalt from aqueous solution. Two microalgae isolates, Phormidium tenue and Chlorella vulgaris, were collected from the Wadi Hanifah Stream in Riyadh, the Kingdom of Saudi Arabia.

Epigenetic Modifiers Affect the Bioactive Compounds Secreted by an Endophyte of the Tropical Plant .

Seven endophytic fungi were isolated from the tropical medicinal plant L. After preliminary screening, was selected for the epigenetic activation treatments. The antibacterial, antifungal, and antioxidant potentials of crude extracts obtained from the treatments (with and without epigenetic modifiers) were analyzed in vitro.

A review on biogenic synthesis of metal nanoparticles using marine algae and its applications.

Marine algae have long been explored as food, feed, additives, drugs, and pesticides, yet now the framework is moving towards the algae mediated green synthesis of nanoparticles (NPs). This work is expanding step by step, like algae, are a rich origin of natural compounds. Recently, algae capped and stabilized NPs have picked up far and wide consideration as a less toxic, easy handling, cost effective, eco-friendly, usage in several science fields in nano size, safer to use, and greener method.

Green synthesis of silver nanoparticles using peels and evaluation of their antibacterial and cytotoxic properties.

The present work aimed to synthesis silver nanoparticles (AgNPs) using biological waste products peels, its characterization, antimicrobial activities and the cytotoxic effect of the synthesized green AgNPs. Characterization of the prepared AgNPs showed the formation of spherical, and few agglomerated AgNPs forms as measured by UV-visible spectrophotometer. The average size of the prepared AgNPs was 59.

L-Asparaginase activity analysis, gene identification and anticancer activity of a new isolated from sponges of the Red Sea.

This study describes the isolation of various marine bacteriafrom sponges collected from the Red Sea (Saudi Arabia) andL-asparaginase (anti-cancer enzyme) production from bacterialisolates. The 16S rDNA based phylogenetic analysis revealed thatthe isolate WSA3 was a Bacillus subtilis. Its partial-length genesequence was submitted to GenBank under the accession numberMK072695.

Salinization and wastewater effects on the growth and some cell contents of .

The aim of this study is to determine the effect of salinization and wastewater stresses on the growth, some cellular contents (total soluble proteins, total soluble carbohydrates, nucleic acids, and amino acids composition) and ultrastructure using TEM of unicellular green alga . Treatment of by NaCl at 10 and 50 mg L significantly increased the growth of this alga and its cellular macro-molecules. While, treatment above this concentration with NaCl significantly inhibited the growth and cellular macro-molecules.

Gold nanoparticles synthesised by flavonoid tricetin as a potential antibacterial nanomedicine to treat respiratory infections causing opportunistic bacterial pathogens.

In this study, flavonoid tricetin was used as a reducing and capping agent for the synthesis of gold nanoparticles (AuNPs). Further, the antibacterial efficacy of the synthesised AuNPs was evaluated against the opportunistic bacterial pathogens that cause respiratory infections. The optimum levels for the synthesis of AuNPs were found to be pH 8, temperature 30 °C, tricetin 125 μM and chloroauric acid 250 μM.

Biosynthesis of silver nanoparticles by using of the marine brown alga and their characterization.

Silver nanoparticles (AgNPs) are gaining considerable importance due to their attractive physicochemical properties for many applications. In the present study, (Ag NPs) were synthesized by the reduction of aqueous solutions of silver nitrate (AgNO) with powder and solvent extracts of (brown algae). The obtained nanoparticles exhibited high stability, rapid formation of the biogenic process (2 min -3 h), small size (49.

Isolation, identification and anti-candidal activity of filamentous fungi from Saudi Arabia soil.

Ten fungal strains; namely, , , , , , , , , and were isolated from soil. The extra- and intra-cellular extracts of the fungal strains grown on malt extract and yeast-extract sucrose media were screened for their anticandidal activity against different clinically-isolated species. Most of the fungal extracts showed activity against different species.

Antimicrobial, antioxidant and anticancer activities of , and extracts.

The antimicrobial, antioxidant, and anticancer activities of ethanolic extract of were determined. The highest antibacterial activity; 23.40 ± 0.

Biological activities of the red algae and butters.

The biological activities; antimicrobial, antioxidant and anticancer, of the red algae and were determined. The total ethanol, lipoidal matters, chloroform, n-butanol, aqueous extracts and powder of both algae showed and bacterial and antifungal activities. However, the chloroform extract of showed antibacterial activity against (24 mm, 0.