Academic literature on the topic 'Total viable bacterial'

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Journal articles on the topic "Total viable bacterial"

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Muñoz-Elías, Ernesto J., Juliano Timm, Tania Botha, Wai-Tsing Chan, James E. Gomez, and John D. McKinney. "Replication Dynamics of Mycobacterium tuberculosis in Chronically Infected Mice." Infection and Immunity 73, no. 1 (2005): 546–51. http://dx.doi.org/10.1128/iai.73.1.546-551.2005.

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ABSTRACT The dynamics of host-pathogen interactions have important implications for the design of new antimicrobial agents to treat chronic infections such as tuberculosis (TB), which is notoriously refractory to conventional drug therapy. In the mouse model of TB, an acute phase of exponential bacterial growth in the lungs is followed by a chronic phase characterized by relatively stable numbers of bacteria. This equilibrium could be static, with little ongoing replication, or dynamic, with continuous bacterial multiplication balanced by bacterial killing. A static model predicts a close corr
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Carol, Okoli, M.C Okonji, S.C Ugoh, S.N Okolo, A.C Okoli, and A.J Alu. "SALMONELLA SPECIE AND TOTAL VIABLE BACTERIAL LOAD IN ROASTED CHICKENS SOLD IN JOS-NIGERIA." Continental J. Biomedical Sciences 1 (June 18, 2007): 11–15. https://doi.org/10.5281/zenodo.818666.

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The study was to investigate for the presence of <em>Salmonella</em> specie and total viable aerobic bacterial load in roasted chickens sold in Jos. The study was carried out on twenty five chicken samples. No salmonella specie was isolated from the samples. However, other bacterial organisms were isolates, viz: 9(36%) of the samples yielded <em>E.coli</em>; 5(20%) yielded <em>Citobacter</em> species; 3(12%) yielded <em>Proteus </em>species and 6(24%) yielded <em>Klebsiella</em> species while 2(8%) showed no growth. An average total viable aerobic bacterial load of 7.9x10<sup>7</sup> organisms
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Stinson, Lisa F., Michelle L. Trevenen, and Donna T. Geddes. "The Viable Microbiome of Human Milk Differs from the Metataxonomic Profile." Nutrients 13, no. 12 (2021): 4445. http://dx.doi.org/10.3390/nu13124445.

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Bacteria in human milk contribute to the establishment of the infant gut microbiome. As such, numerous studies have characterized the human milk microbiome using DNA sequencing technologies, particularly 16S rRNA gene sequencing. However, such methods are not able to differentiate between DNA from viable and non-viable bacteria. The extent to which bacterial DNA detected in human milk represents living, biologically active cells is therefore unclear. Here, we characterized both the viable bacterial content and the total bacterial DNA content (derived from viable and non-viable cells) of fresh
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Oladele, Paul, and Timothy A. Johnson. "PSV-12 Evaluating the effect of lyoprotectants in preserving community structure and bacterial viability in the lyophilized fecal community of pigs." Journal of Animal Science 102, Supplement_3 (2024): 511. http://dx.doi.org/10.1093/jas/skae234.578.

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Abstract Fecal microbiota transplantation (FMT) stands as a potential method for enhancing pig health. FMT has progressed from the basic delivery of fresh stool, to lyophilized preparations which is beneficial for sample storage, but can damage bacterial cells. This has necessitated the need for lyoprotectants to preserve bacterial viability. However, the ideal lyoprotectant for retaining community structure and viability remains unclear. Furthermore, DNA-based microbial profiling methods such as 16S rRNA and metagenomics sequencing do not distinguish live and dead bacteria, prompting the need
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Ahmed Mohamed Moawad Mabrouk, Ahmed Mohamed Moawad Mabrouk. "Assessment of the Microbial Occupational Work Environment in One Faculty of King Abdulaziz University in Jeddah." journal of King Abdulaziz University - Meteorology, Environment and Arid Land Agriculture Sciences 26, no. 2 (2015): 75–82. http://dx.doi.org/10.4197/met.26-2.8.

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The presence of microorganisms in indoor air can pose serious health problems so; the purpose of the present work was to monitor the different groups of microorganisms including total viable bacteria, Staphylococci, total coliforms, Salmonella and fungi in different sites of the occupational environment (laboratories, offices, corridors and toilets) inside the Faculty of Metrology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia. The results showed that, the average of total viable bacterial counts in different work laboratories was ranged from 9500 to 23
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Sawaya, K., N. Kaneko, K. Fukushi, and J. Yaguchi. "Behaviors of physiologically active bacteria in water environment and chlorine disinfection." Water Science and Technology 58, no. 7 (2008): 1343–48. http://dx.doi.org/10.2166/wst.2008.445.

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Direct microscopic methods using several fluorescent staining were applied to estimate the proportion of physiologically active bacteria in the water environment and evaluate the efficacy of disinfection with chlorine. 4′,6-diamidino-2-phenylindole (DAPI) was used to determine total bacterial numbers, and 5-cyano-2,3-ditolyl tetrazolium chloride (CTC) was chosen for direct detection of respiring bacteria. BacLightTM kit was used to assess bacterial membrane integrity. Bacteria with growth potential were enumerated using the DVC method and microcolony technique. The total bacterial number in ri
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Sansupa, Chakriya, Sara Fareed Mohamed Wahdan, Terd Disayathanoowat, and Witoon Purahong. "Identifying Hidden Viable Bacterial Taxa in Tropical Forest Soils Using Amplicon Sequencing of Enrichment Cultures." Biology 10, no. 7 (2021): 569. http://dx.doi.org/10.3390/biology10070569.

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This study aims to estimate the proportion and diversity of soil bacteria derived from eDNA-based and culture-based methods. Specifically, we used Illumina Miseq to sequence and characterize the bacterial communities from (i) DNA extracted directly from forest soil and (ii) DNA extracted from a mixture of bacterial colonies obtained by enrichment cultures on agar plates of the same forest soil samples. The amplicon sequencing of enrichment cultures allowed us to rapidly screen a culturable community in an environmental sample. In comparison with an eDNA community (based on a 97% sequence simil
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Mahmoud, M. Abo-El-Saad, E. I. Badawy Mohamed, and M. M. Mohammed Youssef. "ANALYSIS AND IDENTIFICATION OF MICROBIAL SPECIES ASSOCIATED WITH THE EGYPTIAN DATE FRUITS DURING POSTHARVEST STORAGE." Journal of Applied Biological Sciences 17, no. 1 (2023): 138–54. https://doi.org/10.5281/zenodo.7579923.

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Date fruits are consumed in many countries globally and are mostly loaded with a mixture of microbes. As a result, various bacterial and fungal species attack them, thus causing their spoilage at the ripening, storage, and processing stages. The present study investigates the current spoilage bacteria and fungi of twelve postharvest date fruits collected from different Egyptian geographical regions (Aswan, Siwa, and El-Wady El-Gadeed). Isolation and identification of date-borne microbes based on morphological and molecular identification were studied. The microscopic examination of infected da
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Stinson, Lisa F., Michelle L. Trevenen, and Donna T. Geddes. "Effect of Cold Storage on the Viable and Total Bacterial Populations in Human Milk." Nutrients 14, no. 9 (2022): 1875. http://dx.doi.org/10.3390/nu14091875.

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Expression and cold storage of human milk is a common practice. Current guidelines for cold storage of expressed milk do not take into account the impact on the milk microbiome. Here, we investigated the impact of cold storage on viable bacterial populations in human milk. Freshly expressed milk samples (n = 10) were collected and analysed immediately, stored at 4 °C for four days, −20 °C for 2.25 months and 6 months, and −80 °C for 6 months. Samples were analysed using propidium monoazide (PMA; a cell viability dye) coupled with full-length 16S rRNA gene. An aliquot of each sample was additio
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Gitau, George, Daniel Muasya, Willy Mwangi, et al. "Risk factors associated with camel milk total coliform and total viable bacterial count along the camel milk value chain in Isiolo County, Kenya." Journal of Research in Veterinary Sciences 5, no. 1 (2025): 29. https://doi.org/10.5455/jrvs.20241215111750.

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Abstract Background and Aim: The camel is an important livestock in the semi-arid, arid and desert regions. The study was carried out to determine the level of bacterial contamination and factors associated with total bacterial count and coliform contamination along the camel milk chain in Isiolo County, Kenya. Materials and Methods: A cross-sectional study was carried out between February and March 2024 and milk samples were collected along the milk value chain. Milk samples were collected from farmers, transporters, milk bulkers, and retailers. The samples were assessed for total viable bact
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Dissertations / Theses on the topic "Total viable bacterial"

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Zhang, MORU. "A METHOD OF DETECTING TOTAL VIABLE ORGANISMS IN WATER BASED ON SOLID-PHASE MICROEXTRACTION AND FLUORESCENT SIGNAL DETECTION." Thesis, 2013. http://hdl.handle.net/1974/8139.

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Microorganisms are monitored as a key indicator of water quality. Measurement of “total viable organisms” (TVO, similar to “heterotrophic plate count”, HPC) is used to indicate the general hygiene level of the water, and is often used to assess water treatment. Automated, instrumental TVO detection in water samples using an enzyme reaction method shortens the detection time compared to conventional HPC methods. A method that can detect TVO without interference in water samples by monitoring enzyme activities through fluorescent signals in small custom sample cells was developed. In this me
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BURIANOVÁ, Michaela. "Vliv aktivity vody na obsah mikroorganizmů ve vybraných masných výrobcích." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-395311.

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The aim of this thesis is to monitor how the amount of water (water activity) affects the amount of microorganisms is selected packaged meat products from the point of view standards, which specify their specific requirements for the health safety of these products. The first part of this work describes various types of packaging materials of meat products, the microorganisms that occur in them and the definition of water activity. The second part describes the actual measurement of water activity and the measurement of the occurrence of microorganisms and coliforms, from selection of suitable
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Book chapters on the topic "Total viable bacterial"

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M, Bhavadharani, Lavanya M, Nivetha S, Baskaran N, and Vignesh S. "Detection of VBNC State Strains within the Biofilm Matrix of SS-304 Coupon Immersed in Meat Waste by PMA-PCR Assay." In Emerging Food and Bioscience Research on Human Health: Safety, Security and Sustainable Aspects. Skyfox Publishing Group, 2023. http://dx.doi.org/10.22573/spg.023.978-93-90357-85-7/16.

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Foodborne pathogens, when present in food products, can lead to various diseases and pose significant food safety risks. The Salmonella Sp. is a common foodborne pathogen known for its various harmful effects, such as production of endotoxins, enterotoxins and invasiveness. The Viable but Non-Culturable (VBNC) state is a bacterial survival mechanism that occurs under adverse conditions. It poses a considerable challenge to both public health and food safety. The aim of this research is to establish a Propidium Monoazide- Polymerase Chain Reaction (PMA-PCR) technique capable of swiftly and sens
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Swati, Dr. "MICROBIAL BIOREMEDIATION OF TOXIC AZO DYES: AN ECOLOGICALLY SUSTAINABLE APPROACH." In Futuristic Trends in Biotechnology Volume 3 Book 13. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bjbt13p2ch6.

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A diverse spectrum of synthetic dyes produced by the industries endangers environmental conditions. Because of their stability, colour fastness and resistance to deterioration, existing effluent treatment technologies are incapable of entirely removing resistant azo dyes from effluents. Xenobiotic chemicals, such as azo dyes, are resistant to biodegradation. Furthermore, bacterial colour reduction and degradation of azo dyes is quite effective, resulting in total removal of these contaminants from wastewater. Additionally, this treatment strategy has shown promising results in industrial appli
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Mahfujur Rahman, Md, Md Mostafa Masud, Muhammad Iqbal Hossain, et al. "Potential Role of Rice Plant Growth Promoting Phylloplane and Rhizospheric Bacteria in Controlling Xanthomonas oryzae pv. oryzae." In Integrative Advances in Rice Research. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99854.

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Rice is an important cereal worldwide and it occupies the top position among the cereals in Bangladesh. Rice plant suffers from around 32 diseases of which ten are major in Bangladesh at present. Among the diseases, Bacterial Blight (BB) caused by X. oryzae pv. oryzae (Xoo) considered as a most destructive disease occurs in both rainfed and irrigated seasons of Bangladesh. BB causes considerable yield loss varies from 30 to 50% depending on the outbreak. It is also an important disease in most of the South and Southeast Asian countries. To develop environment-friendly sustainable management ap
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Rivera Sánchez, Sandra Patricia, Liliana Flórez, and Janeth Sanabria. "Validación de métodos microbiológicos para cuantificar salmonella spp, presente en aguas tratadas con fotofenton." In La contaminación industrial de aguas: Una mirada microbiológica y molecular. Editorial Universidad Santiago de Cali, 2018. http://dx.doi.org/10.35985/9789585522381.4.

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Los procesos avanzados de desinfección de aguas han arrojado resultados prometedores al ser evaluados utilizando el indicador bacteriano Escherichia coli (E. coli). Sin embargo, también se ha demostrado que E. coli es menos resistente a la desinfección que otras bacterias entéricas como Salmonella spp. Este estudio pro-pone evaluar la efectividad de las técnicas recuento en placa y NMP frente al gold estándar DVC-FISH para la cuantificación de Salmonella sp., presente en aguas artificiales tratadas mediante el proceso de desinfección foto-fenton. Para el estudio, se realizaron pruebas diagnóst
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Conference papers on the topic "Total viable bacterial"

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Bracho, Mariangela, Ismenia Araujo, Matilde de Romero, María Isabel Sarró, and Sylvie Le Borgne Le Gall. "Comparison of Bacterial Growth of Sulfate Reducing Bacteria Evaluated by Serial Dilution, Pure Plate and Epifluorescence Techniques." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07530.

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Abstract In order to confirm Microbiologically Influenced Corrosion (MIC), it is essential to document the presence of potentially involved microorganisms. However, the total number of bacteria present in a biofilm is seldom estimated because it contains a large bacterial population in addition to the fact that viable but non-cultivable (VNC) cells cannot be recovered by traditional enumeration technique such as the spread plate and the multiple tube methods. A spectrum of alternative methodological approaches is now either under development or available to detect and quantify sulfate reducing
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Ferris, F. G., B. J. Bramhill, T. R. Jack, and B. M. Braun. "Monitoring of Biocide Efficacy at a Field Test Facility in an Oilfield Water Injection System." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90130.

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Abstract The response of attached bacteria on internal surfaces of steel pipes to various biocide treatments was assessed using a custom designed field test facility equipped with five separate flow lines. Successful biocide formulations induced a rapid decrease in viable bacterial counts; however, survivors often persisted after prolonged treatment in low level steady state biofilm populations (approximately 104 cells per cm2). Direct epifluoresence counts of total biofilm populations (viable and non-viable cells) showed no change before and after biocide treatment. This suggests the biocides
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Chen, Yongxu, Tesfaalem Haile, Peyman Derik Vand, and John Wolodko. "Detection of Biofilm Forming Microbes Using Electrochemical Methods." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-15087.

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Abstract Microbiologically Influenced Corrosion (MIC) and biofouling are major challenges to operators who manage water systems in the oil &amp; gas and other sectors. Key to these threats is the formation and accumulation of biofilms in piping systems due to the agglomeration of both biotic components (e.g. microorganisms such as bacteria, archea and extracellular polymeric substances) and abiotic materials (e.g. inorganic solids). These biofilms adhere to inner pipe wall surfaces, and evolve over time depending on surrounding environmental conditions. Manual detection of biofilm formation an
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Kramer, Jeffrey F. "Efficacy of Bromochlorodimethylhydantoin against Legionella Pneumophila in Industrial Cooling Water Systems." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07434.

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Abstract Cooling towers provide an ideal environment for the growth of Legionella pneumophila. Guidelines published by industry groups and governmental bodies recommend the use of oxidizing biocides for the control of L. pneumophila populations. We report here the results of a literature review on the biocidal activity of the oxidizing biocide bromochlorodimethyl-hydantoin (BCDMH) against L. pneumophila. BCDMH achieved &amp;gt;99.9% reduction in viability within 10 minutes of planktonic, pure culture L. pneumophila with 1 ppm free residual chlorine in a typical cooling water. Studies in dynami
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Corrin, Edward, and Terry M. Williams. "A Case Study Evaluating a Co-Injection Biocide Treatment of Hydraulic Fracturing Fluids Utilized in Oil and Gas Production." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05998.

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Abstract The recovery of petroleum resources from previously untapped shale reserves significantly impacts the global energy market. Effective management of limited water resources and control of microbial contamination in all process fluids are crucial to the sustained quality of production fluids. Microbiological contamination in untreated waters is recognized in the oil and gas industry as posing a high risk of production fluid souring by allowing the growth and metabolism of sulfate reducers. In addition to hydraulic source water contamination, it is expected that microbes can be introduce
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Xiuying Tang, He Guo, Yankun Peng, Yang Xu, and Jie Zheng. "Prediction of the total viable bacterial count based on visible/near infrared spectra during pork spoiling." In 2013 Kansas City, Missouri, July 21 - July 24, 2013. American Society of Agricultural and Biological Engineers, 2013. http://dx.doi.org/10.13031/aim.20131593677.

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Martel, Sylvain, and Mahmood Mohammadi. "Towards Mass-Scale Micro-Assembly Systems Using Magnetotactic Bacteria." In ASME 2011 International Manufacturing Science and Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/msec2011-50171.

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Magnetotactic bacteria (MTB) can be used in a coordinated fashion to assemble micro-objects in an orderly manner. To perform micro-assembly tasks, magnetotaxis-based control is used where a directional magnetic field is generated to induce a torque on an embedded chain of membrane-based magnetic nanoparticles (MNP) named magnetosomes. Such chain acts like a nano-compass or a nano-steering system embedded in each bacterium. Such magnetotaxis-based control is then used to orient the MTB in such a way that the laminar flow created by their flagella bundles provides a displacement force on the mic
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Matlob, Abdulsalam, and Akram Rostaminia. "Removal of Bacteria from Wells Water in Erbil City using Natural Zeolite." In 5th International Conference on Biomedical and Health Sciences. Cihan University-Erbil, 2024. http://dx.doi.org/10.24086/biohs2024/paper.1218.

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Although a body of studies is available on the classical methods used for preparing drinking water free of bacterial and other microorganism contamination, a spare number of such studies were carried out, on testing of the natural volcanic mineral, zeolite. Therefore, this study intended to examine the effect of a promising natural zeolite, clinoptilolite, on the removal of bacteria from water samples taken from two wells present in two different regions of the province Erbil/Iraq, Nowruz and Sebardan. Five water samples of each region were tested before and after treatment with the clinoptilo
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Recktenwald, Matthias, Muskanjot Kaur, Mohammed M. Benmassaoud, et al. "Soluble Antimicrobial Peptide (AMP) Screening to Rationally Design AMP-Hydrogels that Selectively Prevent Biofilm Formation." In 28th Annual Rowan-Virtua Research Day. Rowan University Libraries, 2024. https://doi.org/10.31986/issn.2689-0690_rdw.stratford_research_day.192_2024.

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Staphylococcus aureus is an opportunistic pathogen that lives on surfaces and skin and can cause serious infections once inside the body. While antibiotics effectively kill bacteria, there are a growing number of infections with antibiotic-resistant strains. Antimicrobial peptides (AMPs) are part of the innate immune system and can eliminate pathogens including bacteria, fungi, and viruses, and are a promising alternative to antibiotics. Although studies have reported that AMP-functionalized hydrogels can prevent bacterial adhesion and biofilm formation, these materials generally consist of on
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Farah, Huda Mohamed, Muram Elmubarak Elamin, Rahaf Nader Nader Nader, et al. "Metagenomic Analysis of Oral Microbiome during pregnancy." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0135.

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Pregnancy is a dynamic physiological process associated with significant hormonal, immune and metabolic changes to support the growth and development of the fetus. Several studies have highlighted the role of gut microbiota during pregnancy1. The composition of gut microbiota changes dramatically during the course of pregnancy with an increase in Proteobacteria and Actinobacteria, a decline in butyrate-producing bacteria and a reduction in bacterial richness at the end of pregnancy2. These modifications were anticipated to favour the increased metabolic demand during pregnancy, which will, in
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Reports on the topic "Total viable bacterial"

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Arnett, Clint, and Rebekah Wilson. Evaluation of a visible light responsive photocatalytic coating to resist microbial contamination and increase indoor air quality. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47644.

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To meet new Department of Defense (DoD) energy standards, buildings are being constructed, and existing buildings are being retrofitted with tighter envelops. These new standards can reduce operational costs significantly but also limit fresh outdoor air coming into the built environments. This can result in the accumulation of harmful substances within buildings, which can have adverse effects on its occupants. New photocatalytic coatings may be a solution to this ever-increasing problem as they have the ability to destroy both chemical and biological toxins when activated with light. This wo
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