Search
649 articles for “isolate”
-
Antibiotic Resistance Profiles of Salmonella Isolated from Al-Gharraf River and Iraqi Sewage
Abstract: Salmonella is a Gram-negative bacterium belonging to the Enterobacteriaceae family. It has a rod-shaped (bacillus) structure. Salmonella is a prominent contributor to gastrointestinal sickness worldwide. In addition, it is the causative agent of more systemic severe disorders such as typhoid and paratyphoid fevers. Salmonella is primarily recognized as pathogens transmitted by water and food to people and animals. Salmonella is often found in water-related epidemics, even though it is routinely …
Published in Recent Trends in Infectious Diseases · Vol. 2, Issue 1, 2025 · pp. 1–10 Read article
-
Isolation and Characterization of Glucuronide Compound from Luffa Tuberosa (Roxb.) for Potential Applications in Polymer Chemistry
Abstract: This study explores the isolation process of glucuronide compounds from Luffa tuberosa (Roxb.) using an efficient and cost-effective method. The extracted compound, Gypsogenin-3β-O-β-D-Methyl glucuronide, is characterized using spectroscopic techniques such as IR, NMR, and Mass Spectrometry. The polymeric nature of glucuronide-based compounds and their potential applications in polymer and composite materials are discussed. The findings highlight the suitability of glucuronide derivatives in biomedical, pharmaceutical, and polymeric drug delivery systems. Additionally, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 6, 2025 · pp. 566–572 Read article
-
Investigations on Piezoactuator-Based Active Vibration Isolation for Tool-Based Micromachining Applications
Abstract: Stacked piezoactuators are suitable actuators for active vibration isolation systems due to their high stiffness and fast response. However, they exhibit hysteresis nonlinearity between applied voltage and the resulting displacement. In this paper, Bouc-Wen model is used to model the hysteresis nonlinearity of stacked piezoactuator. The model parameters are estimated from the experimental voltage-displacement data of a stacked piezoactuator using “Trust-region nonlinear least square method” in MATLAB Simulink. The resulting …
Published in Journal of Mechatronics and Automation · Vol. 2, Issue 1, 2015 · pp. 41–49 Read article
-
Isolation and Identification of Bacteria Causing Chronic Suppurative Otitis Media and Its Antibiogram
Abstract: Background: Chronic Suppurative Otitis Media (CSOM) is defined as chronic inflammation of middle ear and mastoid cavity, which presents with recurrent ear discharge or otorrhoea through a tympanic perforation. According to WHO, the prevalence of CSOM in India is more than 4% and it falls among those countries where urgent attention is needed. It can be caused by various bacteria, fungus and viruses. Bacterial origin of CSOM is more common …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 3, 2019 · pp. 1–5 Read article
-
Lancefield Group of Streptococci Isolated from Dental Plaque Biofilm
Abstract: The purpose of this study was to detect Lancefield group of Streptococci from different disease diagnosed in dental patient visiting the clinic. A total of 500 dental samples of plaque biofilm isolates were tested. Plaque sampling site varied depending on the condition and disease diagnosed in individual subjects. The plaque biofilm samples were collected from subgingival and supragingival including cervical margin of all erupted teeth. Oral diseases such as aphthous …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 9, Issue 1, 2019 · pp. 99–105 Read article
-
Use of Liquefiable Materials for Vibration Isolation
Abstract: Abstract Trench barrier isolation is very popular but less adopted technique for the isolation of buildings and important structures. Here the structures are to be protected against the energetic surface waves, which are confined up to 3–4.5 m depth below the surface. Several types of trenches with different in-fill materials have been tried with some degree of success. The difficulty comes from the nature of the waves, which are a …
Published in Journal of Geotechnical Engineering · Vol. 3, Issue 3, 2016 · pp. 33–36 Read article
-
Growth Related Production of Poly-ß-Hydroxybutyrate by Azotobacter chroococcum Soil Isolate/Mutant using N, P, and Cane Molasses
Abstract: Soil isolate Azotobacter chroococcum ABR 51 produced a large amount of Poly-ß-Hydroxybutyrate (PHB) during growth in a chemically defined medium using cane molasses as carbon source. Nutritional requirements and cultural conditions for the optimal production of PHB by this strain under laboratory conditions were determined using inorganic, complex organic nitrogen sources, phosphate, and cane molasses. Among conventional carbon sources, (2% w/v) sucrose was found to be the preferred carbohydrate source …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 1, Issue 2, 2011 · pp. 14–22 Read article
-
Study on Isolation, Identification and Effect of Physical Parameters on the Growth of Fungi from Fresh and Spoiled Vegetables
Abstract: Abstract:Food is the basic substrate for the survival of life. As it is rich in various nutrients it is more prone to microbial contamination and spoilage. The objective of the present study was to isolate and identify fungi from fresh and spoiled vegetables and determine the effect of physical parameters like temperature and water. Twenty-one samples were collected from local markets of Nizamabad and Hyderabad. After the culture on Czapekdox …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 5, Issue 1, 2015 · pp. 36–40 Read article
-
Isolation of Bacteria in Dogs with Recurrent Pyoderma in Andhra Pradesh
Abstract: The present study was carried out on 46 dogs having a history of recurrent pyoderma. . Clinical samples were collected aseptically from the skin lesions of the affected dogs and subjected for cultural examination. Seventy one isolates were recovered from the 46 clinical samples. Isolation studies revealed the presence of Staphylococcus aureus 11 (23.9%), Staphylococcus intermedius 27 (58.6%) and Staphylococcus schleiferi 8 (17.3%). other bacteria like Streptococci 8(17.3%), Klebsiella 8 …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 4, Issue 3, 2014 · pp. 15–18 Read article
-
Biochemical Assays of Crude and Purified Oxycarotenoid Extracts Isolated from Coriander Leaves and their Effect on Oxidative Stability of Oils by Rancimat Assay
Abstract: Antioxidants are important substances in the fight against the damage done by free radicals that are produced by oxidative stress. Antioxidants are available in various forms as dietary supplements/synthetic forms. Because of their toxicity and side effects, the extensive use of many of these synthetic antioxidants is ruled out. Most nutritionist agrees that, the natural food is the best source of antioxidants. Dietary antioxidants have the ability to scavenge free …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 1, 2018 · pp. 1–10 Read article
-
Isolation, Identification and Characterization of Bdellovibrio sp. from Soil and its Antibiotic Potential against Selected Bacterial Pathogens
Abstract: Bdellovibrio and Like Organisms (BALOs) are the world's smallest Gram-negative, highly motile delta-proteobacterial predators generally found in diverse environmental niches such as soil, seawater, sewage, bio films, freshwater, gastro intestinal tract of animals and in association with plant roots. These small bacteria attack gram negative bacterial strains attaching to the outer membrane and consuming the prey extracellularly (epibiotic predation) or penetrating their periplasm (periplasmic predation). Bdellovibrio exovorus MPR11 (Accession No. …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 1, 2019 · pp. 119–130 Read article
-
Isolation and Characterization of Gelatinase Producing Halophilic Bacteria from the Sediments of Pichavaram Mangrove Forest, Tamil Nadu State, South India
Abstract: Microorganisms are the most important sources for production of enzyme especially bacteria which have the ability to synthesis gelatinase enzyme has been screened and isolated from Pichavaram mangrove forest soil. This enzyme is capable of degrading gelatin and collagen proteins. The organism was isolated from the mangrove sediments; the genomic DNA was extracted, amplified by 785F and 907R primers, sequenced and identified. Gelatinase producing organism was identified as Bacillus thuringiensis. …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 9, Issue 3, 2019 · pp. 63–70 Read article
-
Extraction, Isolation, Characterization of Curcumin-I From Curcuminoids
Abstract: The major goal of this study is to extract, isolate, and characterize curcumin-I, a component of curcuminoids. Turmeric, or Curcuma longa Linn., plays a significant role in Ayurvedic medicine. Turmeric, or Curcuma longa Linn, is the popular name for this plant. An array of chemicals with biological activity may be more easily extracted with the help of this seasoning. Some of the compounds at play include curcuminoids and turmerone, although …
Published in Journal of Polymer & Composites · Vol. 10, Issue 4, 2022 Read article
-
Characterization of Plant Growth Promoting Bacillus subtilis (VBKT5) Isolated from Vermicompost
Abstract: Vermicompost is a rich source of nutrients and beneficial soil bacteria which can promote plant growth in various ways. Ten prevalent bacterial strains were isolated from the cow dung vermicompost and assessed for growth promotion of paddy. Bacterial suspensions (3X108 CFU/ml) were individually applied to the pots planted with paddy variety and vegetative growth parameters and yield were recorded. Among the bacterial treatments, better shoot length, root length and yield …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 11, Issue 4, 2021 · pp. 12–21 Read article
-
Antibacterial Activities of Medicinal Plant Leaves Extract Against Isolated Escherichia coli Bacteria from Different Water Sources
Abstract: Objective: Escherichia coli are the most common pathogenic bacteria to accountable for food and waterborne illness. Therefore, in this way the study was conducted to resolve the occurrence of E. coli bacteria from different water sources in around Tamil Nadu along with to determine their antibiotic resistance profiles. Methods: Water samples were analysed for the presence of E. coli bacteria using specific agar media Eosin Methylene Blue and McConkeys. Colony …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 11, Issue 3, 2021 · pp. 34–40 Read article
-
Biodegradation of Plastic Waste Using Various Fungal Isolates from Plastic-Polluted Sites in Meerut: Analysis of Polymers and Composites
Abstract: By isolating microorganisms from a dumpsite containing low-density polyethylene (LDPE), the potential for microbial decomposition of plastic waste was studied. Four different strains of Aspergillus niger (fungus) were identified and used to biodegrade plastic waste. The isolated fungal strains included Aspergillus niger, Alternaria, A. fumigatus, A. flavus, and A. luchuensis. Predominant fungal strains, Aspergillus niger and Alternaria, were selected for polyethylene degradation under laboratory conditions. In a controlled shaker culture, …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 184–197 Read article
-
Advanced 4-Element UWB-MIMO Antenna Design: Achieving High Isolation and Multi-Band Rejection for Advanced Wireless Applications
Abstract: In this study, we present the design, fabrication, and analysis of a step-by-step Ultra-Wideband (UWB) Multi-Input Multi-Output (MIMO) antenna operating from 3 to 14 GHz. The antenna consists of four elements, each characterized by high isolation and equipped with four band-rejection features. These elements are implemented on a Rogers substrate with εr=3. Each antenna element is a modified rectangular patch, incorporating partial ground etching to achieve wider bandwidth. Two sets …
Published in Journal of Communication Engineering & Systems · Vol. 15, Issue 1, 2025 · pp. 40–62 Read article
-
Design and Performance Analysis of Natural Rubber–Silica Nanocomposite Vibration Isolators for Household Appliances
Abstract: Natural rubber (NR) nanocomposites reinforced with surface-modified precipitated silica (SiO2) were synthesized through a two-roll mill compounding and compression-moulding process, then systematically evaluated as passive vibration isolator materials for domestic washing machine applications. Five silica loadings 0, 5, 10, 15, and 20 phr were investigated. A comprehensive characterization suite encompassing tensile testing, Shore A hardness, dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) revealed clear structure–property …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 554–560 Read article
-
Improve Isolation of UWB MIMO Antenna by using Neutralization Line
Abstract: Abstract: In this paper, UWB MIMO antenna designing by using neutralization line to improve the isolation of the proposed antenna. The impact of using neutralization line covers the bandwidth from 2.9 to 6.5 GHz. Obtain peak gain 3.9 dB at frequency 5.3 GHz with 95% efficiency. WLAN, WMAX are the main application of this design. Keywords: UWB, MIMO, Neutralization LineCite this ArticleNivedita Srivastava, Rajan Mishra. Improve Isolation of UWB MIMO …
Published in Journal of Microwave Engineering and Technologies · Vol. 6, Issue 1, 2019 · pp. 18–24 Read article
-
A Topology Review of Isolated Multi-Output Converters
Abstract: This paper does a comprehensive review of isolated multi-output converter topologies. The converters are broadly grouped in to three different categories: Cross regulated converters, Post regulated converters and resonant converters. The working principles are discussed and the relative features of the topologies are brought out. Keywords: multi-output, isolated converters
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 1, 2013 · pp. 5–17 Read article