Biofouling最新文献_第2页

Anti-biofilm effect of ferulic acid against Enterobacter hormaechei and Klebsiella pneumoniae: in vitro and in silico investigation. 阿魏酸对霍氏肠杆菌和肺炎克雷伯菌的抗生物膜作用：体外和计算机实验研究。

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-01-05 DOI: 10.1080/08927014.2024.2446927

Parvathi Vaikkathillam, Minsa Mini, Aparna Mohan, Devi Jayakumar, Pooja P Rajan, Sneha Asha, Praveen Kumar

{"title":"Anti-biofilm effect of ferulic acid against Enterobacter hormaechei and Klebsiella pneumoniae: in vitro and in silico investigation.","authors":"Parvathi Vaikkathillam, Minsa Mini, Aparna Mohan, Devi Jayakumar, Pooja P Rajan, Sneha Asha, Praveen Kumar","doi":"10.1080/08927014.2024.2446927","DOIUrl":"10.1080/08927014.2024.2446927","url":null,"abstract":"Enterobacter hormaechei and Klebsiella pneumoniae, key members of the ESKAPE group of hospital-acquired pathogens, are driving forces behind numerous infections due to their potent biofilm formation and the growing threat of antimicrobial resistance. Ferulic acid (FA) is known for its strong antioxidant properties and is recognized for its numerous physiological benefits, including anti-inflammatory, antimicrobial, anticancer, and antidiabetic effects. The current investigation delves into the antimicrobial and antibiofilm ability of FA against E. hormaechei and K. pneumoniae. Using different assays, we confirmed that FA inhibits the biofilm formation of these pathogens. Through computational studies involving molecular docking and molecular dynamics simulations, it was found that FA exhibits a strong affinity for binding with MrkB in E. hormaechei and MrkH in K. pneumoniae, crucial proteins involved in biofilm formation. We hypothesise that FA might interfere with adhesion-associated molecules and inhibit biofilms through the c-di-GMP pathway and proves as an effective antibiofilm compound.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"157-170"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In vitro study of essential oils encapsulated in chitosan microparticles against Histoplasma capsulatum and their pathogenicity in Caenorhabditis elegans.

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-02-06 DOI: 10.1080/08927014.2025.2453184

Anderson da Cunha Costa, Mirele Rodrigues Fernandes, Augusto Feynman Dias Nobre, Maria Gleiciane Rocha, Jacó Ricarte Lima de Mesquita, Rosemeyre Souza Freire, Andre Jalles Monteiro, Rodrigo Silveira Vieira, Raimunda Sâmia Nogueira Brilhante

{"title":"In vitro study of essential oils encapsulated in chitosan microparticles against Histoplasma capsulatum and their pathogenicity in Caenorhabditis elegans.","authors":"Anderson da Cunha Costa, Mirele Rodrigues Fernandes, Augusto Feynman Dias Nobre, Maria Gleiciane Rocha, Jacó Ricarte Lima de Mesquita, Rosemeyre Souza Freire, Andre Jalles Monteiro, Rodrigo Silveira Vieira, Raimunda Sâmia Nogueira Brilhante","doi":"10.1080/08927014.2025.2453184","DOIUrl":"10.1080/08927014.2025.2453184","url":null,"abstract":"Histoplasmosis, caused by Histoplasma capsulatum, poses risks for immunocompromised individuals. With limited therapeutic options, this study explores microparticles as antimicrobial delivery systems for Cymbopogon flexuosus and Pelargonium graveolens essential oils against H. capsulatum. The broth microdilution assay showed MICs of 32 to 128 µg/mL in filamentous phase and 8 to 64 µg/mL in yeast phase. Combining microparticles with antifungal drugs demonstrated synergistic effects in both filamentous and yeast-like forms with amphotericin B or itraconazole. Chitosan microparticles reduced H. capsulatum biofilm biomass and metabolic activity by about 60% at 512 µg/mL. In vivo evaluation with Caenorhabditis elegans showed H. capsulatum caused over 90% mortality. These findings highlight the potential use of chitosan microparticles as a delivery system for essential oils against H. capsulatum, especially in combination with other compounds.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"181-196"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143254552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ozonized water as a promising strategy to remove biofilm formed by Pseudomonas spp. on polyethylene and polystyrene surfaces.

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-01-23 DOI: 10.1080/08927014.2024.2444387

Tatiane Marques Santos, Maria Eduarda Teixeira Lopes, Ernandes Rodrigues de Alencar, Marcus Vinícius de Assis Silva, Solimar Gonçalves Machado

{"title":"Ozonized water as a promising strategy to remove biofilm formed by Pseudomonas spp. on polyethylene and polystyrene surfaces.","authors":"Tatiane Marques Santos, Maria Eduarda Teixeira Lopes, Ernandes Rodrigues de Alencar, Marcus Vinícius de Assis Silva, Solimar Gonçalves Machado","doi":"10.1080/08927014.2024.2444387","DOIUrl":"10.1080/08927014.2024.2444387","url":null,"abstract":"The dairy industry faces challenges in controlling spoilage microorganisms, particularly Pseudomonas, known to form resilient biofilms. Conventional disinfection methods have limitations, prompting the exploration of eco-friendly alternatives like ozone. This study focused on Pseudomonas biofilms on polystyrene and polyethylene surfaces, evaluating ozone efficacy when incorporated into different water sources and applied under static and dynamic conditions. Biofilm formation and removal were assessed with conventional microbiological and microscopic techniques. Despite variations in physicochemical properties, ozonized water from different sources showed similar effectiveness in removing Pseudomonas biofilms. Dynamic ozone application was more efficient, achieving a 2.35 log CFU/coupon reduction on polyethylene surfaces, compared to a 1.05 log CFU/coupon reduction under static conditions. These findings highlight the potential of ozonized water for removing Pseudomonas biofilms, especially under dynamic application. This eco-friendly approach could serve as an effective strategy to mitigate biofilm-related challenges in the dairy industry.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"144-156"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thiosemicarbazones and analogues as potential biofilm inhibitors of Candida albicans.

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1080/08927014.2025.2457151

Carolina do Rosário Esteves Guimarães, Danilo Santana Galvão, Silvio do Desterro Cunha, Humberto Fonseca de Freitas, Tânia Fraga Barros

{"title":"Thiosemicarbazones and analogues as potential biofilm inhibitors of Candida albicans.","authors":"Carolina do Rosário Esteves Guimarães, Danilo Santana Galvão, Silvio do Desterro Cunha, Humberto Fonseca de Freitas, Tânia Fraga Barros","doi":"10.1080/08927014.2025.2457151","DOIUrl":"10.1080/08927014.2025.2457151","url":null,"abstract":"Biofilms are a virulence factor for Candida albicans, a common pathogen in human fungal infections, making them resistant to many commercial antifungals. Therefore, the discovery of compounds that inhibit and eradicate biofilms is a priority. As thiosemicarbazones have had their effect on Candida biofilms little explored, this study investigated the inhibitory and eradication activity of 30 thiosemicarbazones and analogues against C. albicans biofilms. After initial screening, four compounds were selected and compound 28 emerged as the most potent with BIC50 at 31.55 ± 1.18 µM. By scanning electron microscopy analysis, blastoconidia adhered to the reduced surface and reduced formation of pseudohyphae and hyphae was revealed. Despite the inhibitory activity, the four compounds failed to eradicate the biofilm by more than 50%. Thus, the results suggest that the compounds evaluated are very promising for the development of effective antibiofilm compounds and open up new perspectives for elucidating the mechanism of action.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"197-210"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the potential of hydrolytic enzymes combined with antibacterial agents to disrupt pathogenic biofilms and disinfect released cells. 探索水解酶与抗菌剂联合破坏病原生物膜和消毒释放细胞的潜力。

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-01-05 DOI: 10.1080/08927014.2024.2435018

Patricia Palafox-Rivera, Melvin R Tapia-Rodriguez, Julio Cesar Lopez-Romero, Marco A Lugo-Flores, Karen P Quintero-Cabello, Brenda A Silva-Espinoza, M Reynaldo Cruz-Valenzuela, Filomena Nazzaro, J Fernando Ayala-Zavala

{"title":"Exploring the potential of hydrolytic enzymes combined with antibacterial agents to disrupt pathogenic biofilms and disinfect released cells.","authors":"Patricia Palafox-Rivera, Melvin R Tapia-Rodriguez, Julio Cesar Lopez-Romero, Marco A Lugo-Flores, Karen P Quintero-Cabello, Brenda A Silva-Espinoza, M Reynaldo Cruz-Valenzuela, Filomena Nazzaro, J Fernando Ayala-Zavala","doi":"10.1080/08927014.2024.2435018","DOIUrl":"10.1080/08927014.2024.2435018","url":null,"abstract":"Biofilms are bacterial communities encapsulated in a self-produced extracellular polymeric matrix comprising carbohydrates, proteins, lipids, and DNA. This matrix provides structural integrity while significantly enhancing bacterial antibiotic resistance, presenting substantial disinfection challenges. The persistence of biofilm-associated infections and foodborne outbreaks underscores the need for more effective disinfection strategies. Conventional antibacterial agents often are less effective against biofilm-protected cells compared to their efficacy against planktonic (non-attached) bacteria. Integrating hydrolytic enzymes, such as cellulases, proteases, and DNases, into disinfection protocols offers a promising approach by breaking down the biofilm matrix to expose the bacteria. However, the follow-up use of antibacterial agents is important, as enzymes alone do not possess bactericidal properties. Unlike traditional disinfectants, natural antibacterial agents work synergistically with enzymes, enhancing biofilm disruption without compromising the enzymatic activity through oxidation. This review offers a comprehensive analysis of the current knowledge and potential of combining hydrolytic enzymes with disinfectants to disrupt biofilms and eradicate the released bacterial cells, emphasizing applications for clinical and foodborne pathogens.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"131-143"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibacterial and antibiofilm efficacy of quercetin against Pseudomonas aeruginosa and methicillin resistant Staphylococcus aureus associated with ICU infections.

IF 2.6 3区生物学

Biofouling Pub Date : 2025-02-01 Epub Date: 2025-02-05 DOI: 10.1080/08927014.2025.2460491

Kalidass Vijayakumar, Vinitha Ganesan, Suganya Kannan

{"title":"Antibacterial and antibiofilm efficacy of quercetin against Pseudomonas aeruginosa and methicillin resistant Staphylococcus aureus associated with ICU infections.","authors":"Kalidass Vijayakumar, Vinitha Ganesan, Suganya Kannan","doi":"10.1080/08927014.2025.2460491","DOIUrl":"10.1080/08927014.2025.2460491","url":null,"abstract":"Infections caused by multidrug-resistant pathogens, particularly in ICU settings, pose significant health risks globally. Pseudomonas aeruginosa (PA) and methicillin-resistant Staphylococcus aureus (MRSA) are prominent nosocomial pathogens among the ESKAPE group, known for their resistance mechanisms such as biofilm formation and quorum sensing. Quercetin, a flavonoid found in fruits and vegetables, exhibits diverse pharmacological properties, including antimicrobial activity. This study evaluated quercetin's efficacy against PA and MRSA through in vitro and in vivo experiments. Minimum Inhibitory Concentration (MIC) assays showed MIC values of 158 µg mL-1 for PA and 176 µg mL-1 for MRSA. Quercetin inhibited PA's swarming motility at concentrations as low as 39.5 µg mL-1 and reduced MRSA viability in serum by up to 79%. Quercetin treatment significantly reduced biofilm formation by both pathogens, with Pseudomonas aeruginosa showing biomass reductions of 23% at 1/4 MIC (39.5 µg mL-1) and 48% at 1/2 MIC, while methicillin-resistant Staphylococcus aureus exhibited reductions of 27% at 1/4 MIC and 53% at 1/2 MIC compared to the control. High-content fluorescence imaging demonstrated quercetin's ability to disrupt biofilm structure and viability. Moreover, quercetin suppressed EPS production and protease activity in both PA and MRSA, alongside downregulating virulence-related genes involved in quorum sensing and toxin production. In vivo studies using Caenorhabditis elegans confirmed quercetin's ability to reduce bacterial adherence and colonization. These findings underscore quercetin's potential as a therapeutic agent against multidrug-resistant pathogens in ICU settings, warranting further exploration for clinical applications.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"211-224"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anti-biofouling marine diterpenoids from Okinawan soft corals. 冲绳软珊瑚中抗生物污染的海洋二萜。

IF 2.6 3区生物学

Biofouling Pub Date : 2025-01-02 DOI: 10.1080/08927014.2024.2443029

Shinnosuke Ishigami, Ryoma Nakagawa, Fumiya Yagi, Hikaru Takada, Ayano Suzuki, Takashi Kamada, Kazumi Nimura, Iori Oshima, Chin-Soon Phan, Takahiro Ishii

{"title":"Anti-biofouling marine diterpenoids from Okinawan soft corals.","authors":"Shinnosuke Ishigami, Ryoma Nakagawa, Fumiya Yagi, Hikaru Takada, Ayano Suzuki, Takashi Kamada, Kazumi Nimura, Iori Oshima, Chin-Soon Phan, Takahiro Ishii","doi":"10.1080/08927014.2024.2443029","DOIUrl":"https://doi.org/10.1080/08927014.2024.2443029","url":null,"abstract":"Soft corals produce a diverse range of natural products with pharmaceutical potential, such as antiproliferative and anti-inflammatory effects. The Alcyoniidae family, particularly the genera Sarcophyton and Sinularia, is rich in bioactive terpenoids. However, despite extensive research, their anti-biofouling properties against the mussel Mytilus galloprovincialis remain underexplored. This study investigates these compounds as potential eco-friendly antifouling agents. A new cembrane-type diterpenoid, 11,12-epoxycembrene A (1), and 15 known compounds were isolated from three soft corals distributed in Okinawa, Japan. The chemical structures of these secondary metabolites were elucidated based on spectroscopic analysis. Moreover, an anti-biofouling assay of potential anti-biofouling agents against M. galloprovincialis was performed and their toxicities were assessed by means of the brine shrimp mortality test. In conclusion, this study identifies new and known bioactive compounds from soft corals, introduces an improved anti-biofouling assay, and highlights the potential of dimethylamine-containing diterpenes as environmentally friendly antifouling agents.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"1-10"},"PeriodicalIF":2.6,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Inhibition of Salmonella Typhimurium biofilm and polysaccharide production via eugenol-glucosyltransferase interactions. 通过丁香酚-葡萄糖基转移酶相互作用抑制鼠伤寒沙门菌生物膜和多糖生产。

IF 2.6 3区生物学

Biofouling Pub Date : 2025-01-02 DOI: 10.1080/08927014.2024.2446928

Julian Javier Palomares-Navarro, Ariadna Thalia Bernal-Mercado, Cristóbal Joel González-Pérez, Miguel Angel Martínez-Tellez, Gustavo Adolfo Gonzalez-Aguilar, Luis Alberto Ortega-Ramirez, Jesus Fernando Ayala-Zavala

{"title":"Inhibition of Salmonella Typhimurium biofilm and polysaccharide production via eugenol-glucosyltransferase interactions.","authors":"Julian Javier Palomares-Navarro, Ariadna Thalia Bernal-Mercado, Cristóbal Joel González-Pérez, Miguel Angel Martínez-Tellez, Gustavo Adolfo Gonzalez-Aguilar, Luis Alberto Ortega-Ramirez, Jesus Fernando Ayala-Zavala","doi":"10.1080/08927014.2024.2446928","DOIUrl":"https://doi.org/10.1080/08927014.2024.2446928","url":null,"abstract":"This study hypothesizes that eugenol, due to its structural properties, can inhibit glucosyltransferase activity, thereby reducing polysaccharide synthesis in Salmonella Typhimurium biofilms. It was found that eugenol exhibited minimum inhibitory and bactericidal concentrations of 0.6 mg mL-1 and 0.8 mg mL-1, respectively, against planktonic S. Typhimurium growth. It also demonstrated minimum biofilm eradication and inhibition concentrations of 1.8 mg mL-1 and 0.7 mg mL-1, respectively. At 0.3 mg mL-1, eugenol reduced biofilm formation and affected polysaccharide production. Moreover, eugenol reduced glucosyltransferase activity. Computational analysis indicated strong interactions between eugenol and the enzyme's active site residues with affinity energy -8.5 kcal mol-1. Real-time PCR revealed a significant increase in bcsA gene expression in the presence of eugenol. These findings suggest that eugenol's ability to inhibit glucosyltransferase activity effectively reduces biofilm formation and polysaccharide content.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"1-18"},"PeriodicalIF":2.6,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quorum quenching effects of linoleic and stearic acids on outer membrane vesicle-mediated virulence in Chromobacterium violaceum. 亚油酸和硬脂酸对紫色色杆菌外膜囊泡介导毒力的群体猝灭作用。

IF 2.6 3区生物学

Biofouling Pub Date : 2024-12-27 DOI: 10.1080/08927014.2024.2446930

Venkatramanan Mahendrarajan, Nalini Easwaran

{"title":"Quorum quenching effects of linoleic and stearic acids on outer membrane vesicle-mediated virulence in Chromobacterium violaceum.","authors":"Venkatramanan Mahendrarajan, Nalini Easwaran","doi":"10.1080/08927014.2024.2446930","DOIUrl":"https://doi.org/10.1080/08927014.2024.2446930","url":null,"abstract":"Chromobacterium violaceum is a pathogenic bacterium that can infect humans and animals, yet the role of its outer membrane vesicles (OMVs) in mediating pathogenicity remains underexplored. This study evaluated the effects of linoleic acid (LA) and stearic acid (SA) on quorum sensing (QS)-mediated violacein production, biofilm formation, and OMV biogenesis in C. violaceum. Our findings revealed that 2 mM LA and 1 mM SA effectively quench QS, leading to a significant reduction in violacein production, biofilm formation, and OMV biogenesis. Gene expression analysis confirmed the downregulation of QS-related genes, including cviI, cviR, vioA, vioB, and vioC, in fatty acid-treated C. violaceum. Additionally, we assessed the antimicrobial activity of C. violaceum-derived OMVs on Rhizobium sp., a PGPR and observed a marked reduction in bactericidal activity in the treated OMVs. This study suggests that LA and SA have potential as anti-infective agents to mitigate OMV-mediated virulence and combat antibiotic resistance in pathogens.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"1-11"},"PeriodicalIF":2.6,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142891850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of magnetically treated water on the survival of bacteria in biofilms. 磁处理水对生物膜中细菌存活的影响。

IF 2.6 3区生物学

Biofouling Pub Date : 2024-12-26 DOI: 10.1080/08927014.2024.2444379

Aidan R Foster, Erika R Stark, Luisa A Ikner, Ian L Pepper

{"title":"Effects of magnetically treated water on the survival of bacteria in biofilms.","authors":"Aidan R Foster, Erika R Stark, Luisa A Ikner, Ian L Pepper","doi":"10.1080/08927014.2024.2444379","DOIUrl":"https://doi.org/10.1080/08927014.2024.2444379","url":null,"abstract":"The goal of this study was to evaluate if a magnetic water treatment device could be used to mitigate biofilms in water systems. Magnetic treatment was applied to water upstream of a modified Robbins device in which Pseudomonas fluorescence biofilms were formed. Duration of magnetic treatment, system flow rate, and field strength were varied to assess the impacts on the biofilm. A control system was concurrently established in which no magnetic treatment was applied. After treatment, the number of viable cells in the biofilm was reduced by up to 2.46 log10 CFU cm-2 depending on the operational conditions. Increased cell stress, and ultimately death, was observed during treatment as indicated by an elevated AMPi stress index. These results indicate that magnetic water treatment may be an effective technology to decrease the extent of biofilms in water systems and a reduced need for chemical treatment. A mechanism is proposed in which metabolic processes are hindered due to the magnetic field effects on ions in the water. However, a mechanistic investigation remains outside the scope of this study. Future studies should aim to characterize both the impacts of treatment on the matrix and cellular processes to determine a mechanism for the observed effects.","PeriodicalId":8898,"journal":{"name":"Biofouling","volume":" ","pages":"1-13"},"PeriodicalIF":2.6,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142891849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0