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440 articles for “bacterial”
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Characterization of Laccase Enzyme from Dye Degrading Bacterial Strains Isolated from Natural Sources
Abstract: The continuous growth in globalization and industrialization has increased the environmental pollution and one such major contaminant is various types of synthetic dyes. Microbial decolorization and degradation of these dyes through secretion of various extracellular enzymes is gaining importance owing to their eco-friendly nature. One such enzyme is laccase, a multicopper oxidase enzyme which has the ability to oxidize both phenolic and non-phenolic compounds through reduction of molecular oxygen to …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 65–76 Read article
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Ventilator Associated Pneumonia: Prevalence of Bacteria and their Antibiogram in Tertiary Care Centre, Kota, Rajasthan, India
Abstract: Background: Mechanical ventilation is a life-saving procedure, but it is associated with a high risk of acquiring respiratory infections. Hence to prevent it and initiate empirical antimicrobial therapy, knowledge of microbial profile and their local antimicrobial sensitivity pattern are essential. The study aimed to investigate the role of endotracheal aspirate (ETA) surveillance cultures in identifying the aetiology of VAP earlier. Methods: A prospective study was carried out over a period …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 11, Issue 1, 2021 · pp. 30–34 Read article
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Cyto-toxicity of Silver Nanoparticles on A Bacterial Population Isolated From Lakewater
Abstract: Due to the increased industrial and consumer applications, there is growing concern regarding the possible risk associated with their environmental exposure. Silver nanoparticles are considered to be toxic both to environment and human beings after a permissible limit. The aim of the present study was to explore the difference in toxicity mechanism of Silver nanoparticles (NPs) at low concentrations (≤1 μg/mL), in a lake-water bacterial consortia containing Bacillus marisflavi and …
Published in Research and Reviews: A Journal of Toxicology · Vol. 4, Issue 1, 2014 · pp. 22–25 Read article
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Evaluation of Inhibition Effect of Nanohybrid Curcumin (Cur-ZnO) and Cur-free Against Some Types of Bacteria
Abstract: This study aimed to prepare an efficient nanohybrid food preservative by loading curcumin on zinc oxide. The prepared compound was characterized using microscopy and spectral methods. Fourier transform infrared spectrum of the nanohybrid curcumin showed a shift in the frequencies of some chemical groups towards high and low frequencies. X-ray diffraction (XRS) spectrum also revealed the emergence of new diffraction planes in the nanohybrid compound, Compared with the carrier spectrum …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 68–79 Read article
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NanoBioAI: Utilizing Python to Investigate Magnetocaloric Effects in Magnetotactic Bacteria and Optimized Conditions for Thermotherapy
Abstract: The study presented in the research work represents a multidisciplinary approach, integrating biology, nanotechnology, and artificial intelligence. It specifically highlights the use of python computational power to investigate magnetocaloric effect (MCE) in magnetotactic bacteria (MTB), a phenomenon yet to be fully understood, characterized by reversible heating and cooling effects induced by magnetic fields. MTB are unique in that they contain embedded magnetic nanoparticles ranging from 10–100 nm in diameters. These …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 11, Issue 2, 2024 · pp. 122–131 Read article
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Development of a Plant-Derived Bacteriological Culture Medium as an Alternative to Conventional Nutrient Agar
Abstract: Microbiological research extensively uses culture media for the cultivation and study of microorganisms. However, the traditional nutrient agar, which contains animal-derived components, presents ethical and accessibility challenges. This study aims to tackle these issues by creating a plant-based bacteriological culture medium as a sustainable and cost-effective alternative. The primary objective is to satisfy the growing demand for ethical and accessible culture media by utilizing the nutritional richness of common plant …
Published in Research & Reviews: A Journal of Pharmacognosy · Vol. 11, Issue 3, 2024 · pp. 1–9 Read article
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QSAR Modeling of a Novel Series of Methoxylated Chalcones as Antioxidant Agents Against Gram-Positive Bacteria Staphylococcus aureus
Abstract: Background: Chalcones are aromatic ketones belonging to the flavonoid family. They are plant-based compounds and are widely found in nature. For centuries, these bioactive molecules have been utilized in various traditional medicines for the treatment of several ailments. Chalcones have antibacterial, antiviral, antimalarial, antifungal, antioxidant, and antileishmanial properties. They are also used to treat inflammation and cancer. Chalcones act as angiogenesis inhibitors, an important factor in cancer progression and metastasis. …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 3, Issue 1, 2025 · pp. 28–34 Read article
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Synthesis, Molecular Docking and Biological Evaluation of Novel Chlorobenzenesulfonamide Analogues of Ibuprofen as Anti-Bacterial, Anti-Diabetic and Anti-Alzheimer Agents
Abstract: In this work, we have synthesized novel chlorobenzensulfonamide tertiary amide based analogues of Ibuprofen (Ibu) and investigated them for their anti-bacterial, anti-diabetic and anti-Alzheimer activities. In the first step, Ibu was converted to amide derivatives by incorporating different aromatic amines. These were further converted into sulfonamide analogues (Sul-Ibu, 1-9) by treating it with p-chlorobenzensulfonyl chloride. Sul-Ibu (1-9) were screened against S. aureus, B. subtilis, S. mutans, E. coli, P. aeruginosa, …
Published in International Journal of Cheminformatics · Vol. 3, Issue 1, 2025 · pp. 41–55 Read article
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Production And Purification of Amylase Through Bacterial Strain
Abstract: Amylases are important industrial enzymes with use in detergents, brewing, and food processing because of their ability to hydrolyze starch. In this research, the production and optimization of α-amylase from a potato soil isolated bacterium using agro-waste as a carbon source is investigated. The isolate had a hydrolytic zone of 13.33 mm and the highest activity of 545 U/mL under submerged fermentation with 1% starch. Optimum conditions were pH 7.0, …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 15, Issue 2, 2025 · pp. 1–10 Read article
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Synthesis, Molecular Docking and Biological Evaluation of Novel Chlorobenzenesulfonamide Analogues of Ibuprofen as Anti-Bacterial, Anti-Diabetic and Anti-Alzheimer Agents
Abstract: In this work, we have synthesized novel chlorobenzensulfonamide tertiary amide based analogues of Ibuprofen (Ibu) and investigated them for their anti-bacterial, anti-diabetic and anti-Alzheimer activities. In the first step, Ibu was converted to amide derivatives by incorporating different aromatic amines. These were further converted into sulfonamide analogues (Sul-Ibu, 1-9) by treating it with p-chlorobenzensulfonyl chloride. Sul-Ibu (1-9) were screened against S. aureus, B. subtilis, S. mutans, E. coli, P. aeruginosa, …
Published in International Journal of AgroChemistry · Vol. 3, Issue 1, 2025 · pp. 35–49 Read article
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Investigation of Pollution Status in River No. 2, Freetown, Sierra Leone, Using Physicochemical and Bacterial Indicators
Abstract: This study assessed the physicochemical and bacteriological quality of surface water in the River No. 2 watershed, Sierra Leone, through monthly sampling from March–August 2024 at upstream, midstream, and downstream sites. Analyses included temperature, turbidity, pH, electrical conductivity, total dissolved solids, ammonia, fluoride, sulfite, nitrate, lead, arsenic, chromium, and microbial indicators (Escherichia coli, fecal and non-fecal coliforms). Most physicochemical parameters met WHO drinking-water guidelines. pH (7.0–7.3), TDS (7–17 mg/L), turbidity …
Published in International Journal of Pollution: Prevention & Control · Vol. 4, Issue 1, 2026 · pp. 11–27 Read article
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Effect of Leaf or Bud Extract of Euphorbia hirta L. using Different Solvents against Human Pathogenic Bacteria Staphylococcus aureus
Abstract: AbstractAntibacterial effects of leaf or bud extract of selected medicinal herb Euphorbia hirta L. were examined using agar disc diffusion method against test bacteria Staphylococcus aureus. Different solvents such as methanol, ethanol, dimethyl sulfoxide and aqueous were used for extraction. Maximum in vitro inhibition was observed in methanol extracts of Euphorbia hirta L. which offered inhibition zone of 20 mm and zone of inhibition area of 471.00 mm² against S. …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 8, Issue 3, 2018 Read article
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Synthesis and Characterization of TiO2 1% SiO2 of Crystal and its Bacterial Applications
Abstract: Three-dimensional (3D) TiO2 Anatase and Rutile structures have attracted much attention due to their optical properties. However, the large band gap of (3.2 eV) results in the fact that anatase TiO2 can act as photo catalyst and be excited by UV light, which only accounts for 3–5% of the solar energy. On considering that nobel metallatic nanomaterials can harvest visible light, in this paper, TiO2 and SiO2 nanocrystals with rod …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 1, 2020 · pp. 47–58 Read article
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Pharmacokinetic Profiling and Molecular Docking of Carvacrol and Structural Analogs: Targeting Quorum Sensing Proteins to Disrupt Biofilm-Mediated Antimicrobial Resistance in Multidrug-Resistant Bacterial Pathogen
Abstract: Antibiotic resistance, particularly in Pseudomonas aeruginosa, has become a major global health threat, exacerbated by the organism's ability to form biofilms and regulate virulence through quorum sensing (QS). The LuxR and LasR receptors are key regulators in this process, influencing both pathogenicity and antibiotic resistance. This study investigates potential QS inhibitors targeting these receptors as a strategy to mitigate antibiotic resistance. The primary objective was to identify novel ligands that …
Published in International Journal of Biochemistry and Biomolecule Research · Vol. 3, Issue 2, 2025 · pp. 43–61 Read article
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Cell Membrane Immunogens of a Biofilm-producing Staphylococcus aureus Isolate Adjuvanted with Bacterial Chromosomal DNA Are Protective in a Mouse Mastitis Model
Abstract: Biofilm-forming staphylococci have been implicated in persistent bovine udder infections. Prophylactic potential of Staphylococcus aureus biofilm phenotype-associated immunogens in mouse models of systemic, but not intramammary infections has been demonstrated. In the present study, the authors observed protection in a murine model of intramammary infection by two subcutaneous injections at four-week interval of biofilm-forming S. aureus cell membrane antigens mixed with homologous chromosomal DNA as adjuvant, when challenged after eight …
Published in Research and Reviews : A Journal of Immunology · Vol. 3, Issue 3, 2013 · pp. 18–24 Read article
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Antibacterial Potentiality of SourSop Leaf and Fruit Extract: A Review
Abstract: SourSop is scientifically known as Annona muricata Linnaeus, which is a highly potent plant with a wide range of activities especially against cancer. The plant has many health benefits and all its parts have been utilized for treating various diseases. It is also used popularly to make various food items like ice creams and beverages. Lately, it has been explored for its antibacterial and anticancer properties by researchers worldwide. The …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 12, Issue 1, 2024 · pp. 59–64 Read article
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Application Of Silver Nanoparticles On Experimental Wound Infection Of Pseudomonas aeruginosa In Rats
Abstract: This study aimed to evaluate the application of silver nanoparticles on experimental wound infection of Pseudomonas aeruginosa in rats. Infected patients at a private hospital in Baghdad had fifty swab samples taken from their wounds and burns (25 samples in total). These swabs were cultured on primary medium and then routine bacteriological tests were done for identification. Molecular confirmation of bacteria was done by using 16S rRNA gene. The research …
Published in International Journal of Antibiotics · Vol. 2, Issue 1, 2025 · pp. 1–8 Read article
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Domestic Drinking Water Electrical Purifier
Abstract: Domestic drinking water purification systems are designed to treat hard water, remove deposits such as scale, sand, lime, rust, etc., and to deactivate harmful viruses and bacteria such as E. coli. The advantages of these purification systems are that they are not only a source of clean drinking water, but also that clean drinking water protects heating systems, household appliances, plumbing, washing/laundry etc. from deposits such as scale, sand, lime, …
Published in Journal of Materials & Metallurgical Engineering · Vol. 11, Issue 1, 2021 · pp. 27–33 Read article
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A review on antibacterial properties of eucalyptus oil and different eucalyptus species used in pharmaceuticals
Abstract: Medicinal plants with antimicrobial compounds play a crucial role in combating various pathogens. Eucalyptus, belonging to the myrtle family, is notable for its diverse antimicrobial compounds. This fast-growing plant thrives in many countries and its various parts offer significant medicinal value, including timber, pulpwood, and essential oils. The leaves, often considered forest harvesting waste, contain essential oils with potential medicinal benefits. Members of the genus Eucalyptus are highly valued for …
Published in International Journal of Antibiotics · Vol. 1, Issue 2, 2024 · pp. 10–19 Read article
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Preparation of Vitamin B12-Enriched Curds: A Novel Approach to Address Nutritional Deficiency in Vegetarian Populations
Abstract: Addressing the significant public health challenge of Vitamin B12 deficiency, particularly within India’s substantial vegetarian population (estimated at 35%), this study explored biofortification of the widely consumed dairy product curd (dahi) as a culturally acceptable solution, overcoming barriers of cost, access, and compliance associated with traditional supplements. Researchers isolated bacterial strains from Swiss cheese, presumptively identified as Propionibacterium shermanii based on phenotypic characteristics, and used them to ferment curd under …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 16, Issue 1, 2026 · pp. 1–15 Read article