تعتبر شركة Olux شركة رائدة ومتميزة على المستوى الدولي في مجال البحث والتطوير وتصنيع وبيع محطات التكسير والغربلة واسعة النطاق ومعدات الطحن الصناعية ومصانع الاستفادة.
Respiratory infections of Pseudomonas aeruginosa are a major cause of mortality and morbidity for hospitalized patients. Fine particulate matter (FPM) is known to have interactions with some bacterial infection in the respiratory system. In this report, we investigate the effect of different concentration of FPM on P. aeruginosa attachment and biofilm formation using in vitro cell …
WhatsApp: +86 18221755073
Fluorescence microscopy was used to study the adhesion of P. aeruginosa on the surface of the oxide film in the presence or absence of visible light. Finally, the anodization conditions of the oxide film with optimal anti-adhesion performance were obtained, and the anti-adhesion mechanism of the nanostructured oxide film is discussed. 2.
WhatsApp: +86 18221755073
The influence of permeate flux on bacterial adhesion to NF and RO membranes was examined using two model Pseudomonas species, namely Pseudomonas fluorescens and Pseudomonas putida.To better understand the initial biofouling profile during NF/RO processes, deposition experiments were conducted in cross flow under permeate flux varying from 0.5 up …
WhatsApp: +86 18221755073
The aim of this study is to determine rigid gas permeable (RGP) lens surface properties prior to and after wear that are influential on adhesion of Pseudomonas aeruginosa. After 10 and 50 days of wear and after end-stage use, lenses were collected for determination of physico-chemical surface properties and bacterial adhesion in a parallel plate flow chamber.
WhatsApp: +86 18221755073
This work examined the influence of growth phase on the adhesion of Pseudomonas putida to kaolinite-coated coverslips. Fluorescence microscopy, together with a bacterial viability stain, was used to directly quantify surface cell density and viability of adhered P. putida. In situ attenuated total reflectance Fourier transform infrared ...
WhatsApp: +86 18221755073
23 Objectives The adhesion of colloidal probes of stainless steel, glass and cellulose to 24 Pseudomonas fluorescens biofilms was examined using atomic force microscopy (AFM) 25 to allow comparisons between surfaces to which biofilms might adhere. 26 Results Biofilm was grown on a stainless steel substrate, and covered most of the surface
WhatsApp: +86 18221755073
Atomic force microscopy showed that the adhesion energy, measured from the retract curves of a bacterial-coated cantilever from a brush coating, was significantly more negative for adhesive ...
WhatsApp: +86 18221755073
For each bacterial probe, the maximum adhesion forces were plotted as a function of the bond-maturation time Dt, and fitted to F(Dt) ¼ F0s + (FN F0s)(1 exp{ Dt/s}) (4) with F0s being the maximum adhesion force at 0 s contact time, FN being the maximum adhesion force after bond-maturation, and s being the characteristic time needed for the ...
WhatsApp: +86 18221755073
Primary adhesion of Pseudomonas aeruginosa to inanimate surfaces including biomaterials Methods Enzymol. 1999:310:551-7. doi: 10.1016/s0076-6879(99)10042-9. Authors D G Ahearn 1, R N Borazjani, R B Simmons, M M Gabriel. Affiliation 1 Georgia State University, Atlanta ...
WhatsApp: +86 18221755073
The adhesion of Pseudomonas fluorescens (ATCC 700830) to perpendicularly polarized magnetic surfaces was recently discovered. The findings have found that the …
WhatsApp: +86 18221755073
Author summary Hospital-acquired infections caused by multidrug-resistant (MDR) or extensively drug-resistant (XDR) Pseudomonas aeruginosa are a growing concern, frequently linked to a small number of epidemic "high-risk clones" that have become prevalent in healthcare settings worldwide. These clones are particularly challenging to manage due to their enhanced …
WhatsApp: +86 18221755073
T1 - Shear force enhances adhesion of Pseudomonas aeruginosa by counteracting pilus-driven surface departure. AU - Palalay, Jessica Jae S. AU - Simsek, Ahmet N. AU - Reed, Jessie L. AU - Koch, Matthias D. AU - Sabass, Benedikt. AU - Sanfilippo, Joseph E. PY - 2023/10/3.
WhatsApp: +86 18221755073
Results were analyzed considering the participation of the different interfacial forces under the Derjaguin–Landau–Verwey–Overbeek (DLVO) theory. At 0.1 M, maximal bacterial adhesion …
WhatsApp: +86 18221755073
Bacterial adhesion is a critical initiation step in bacterial colonization and persistence, both for pathogens and commensals. Bacteria express various adhesive surface structures such as capsule, fimbriae or pili, and several surface proteins (for examples the reader is referred to Klemm et al. ). Typically the adhesive structures are not ...
WhatsApp: +86 18221755073
The adhesion ability of P. aeruginosa also decreased to 23.0% at the level of 50.0 µM, indicating that there might not be a linear variation with further addition of the AHLs to promote such cell adhesion, and this agreed with the trend of biofilm formation discussed above.
WhatsApp: +86 18221755073
A sand column adhesion assay was developed which distinguishes the adhesion abilities of a number of pseudomonads isolated from fine sandy loam. Pseudomonas fluorescens Pf0-1 which adhered at >90% of the total cells added was subjected to transposon Tn5 insertion mutagenesis. From 2,500 Pf0-1::Tn …
WhatsApp: +86 18221755073
The corrosion behavior of three types of EPS of Pseudomonas aeruginosa, i.e., soluble, loosely bound, and tightly bound EPS (S-EPS, LB-EPS, and TB-EPS) on the surface of EH40 steel were studied. Results indicated that three EPS have distinct adhesion mechanisms and corrosion influence on EH40 steel.
WhatsApp: +86 18221755073
The adherence of Pseudomonas fluorescens cells to nine food-processing contact surfaces was evaluated using the plate-count method. The surfaces include marble, granite, …
WhatsApp: +86 18221755073
Purpose: The purpose of this study is to compare the adhesion capabilities of the most important etiologic agents of microbial ocular infection to the recently available silicone-hydrogel lenses with those to a conventional hydrogel lens. Methods: In vitro static adhesion assays of Pseudomonas aeruginosa 10,145, Staphylococcus epidermidis 9142 (biofilm-positive), and 12,228 (biofilm …
WhatsApp: +86 18221755073
Adhesion of P. fluorescens (ATCC 17552) to nonpolarized and polarized gold at 0.1 M NaCl. The effect of increasing the ionic strength on the electrochemical potential influence on bacterial adhesion was investigated.
WhatsApp: +86 18221755073
Pseudomonas aeruginosa is a pioneer bacterium that can initiate biofilm formation in a seawater environment, causing biofouling and biocorrosion. Therefore, understanding the interactions that occur between this bacterium and a commonly used material, 304 stainless steel, in the marine environment is mandatory before attempting to identify methods that can mitigate …
WhatsApp: +86 18221755073
Some properties of the adhesion-modifying factors of Pseudomonas fluorescens are described. Adhesin, which promotes the adhesion of P. fluorescens cells, is a hydrophobic compound of a protein nature with a molecular mass of more than 10 kDa located either at the cell surface or in the medium. Anti- …
WhatsApp: +86 18221755073
Abstract. Shewanella and Pseudomonas are considered to be the main spoilage bacteria for chilled fish. This work focused on the spoilage and adhesion ability of two spoilage bacteria (Shewanella spp. S-1 and Pseudomonas spp. P-1), and the adhesion inhibitory effects of Bacillus subtilis against the spoilage bacteria in large yellow croaker (Pseudosciaena crocea).
WhatsApp: +86 18221755073
This study aimed at investigating the influence of four different culture media on the planktonic growth, adhesion, and. Objective: Pseudomonas aeruginosa and Staphylococcus aureus dual-species biofilm infections are notoriously difficult to manage. This study aimed at investigating the influence of four different culture media on the ...
WhatsApp: +86 18221755073
The species Pseudomonas syringae contains all of the phytopathogenic and oxidase-negative fluorescent pseudomonads except Pseudomonas viridiflava (27, 38). P. syringae is divided into 57 pathovars that are pathogenic for numerous monocot and dicot crops (). P. syringae strains are well adapted to conditions on plant surfaces. A better understanding …
WhatsApp: +86 18221755073
Abstract Objective. Pseudomonas aeruginosa and Staphylococcus aureus dual-species biofilm infections are notoriously difficult to manage. This study aimed at investigating the influence of four different culture media on the planktonic growth, adhesion, and biofilm formation of P. aeruginosa and S. aureus.. Materials and Methods
WhatsApp: +86 18221755073
A Pseudomonas fluorescens strain was isolated from oxic marine sediments obtained from the strand zone of the St Anne Bay (a moderately metal-contaminated site to the west of Cherbourg harbour). The strain, which exhibited a high tolerance to metal contamination when cultivated (minimal inhibitory concentration = 950 μM [62 mg L − 1] for Zn, 660 μM [42 …
WhatsApp: +86 18221755073
Pseudomonas putida KT2440 is a strain that colonizes the rhizosphere of a number of agronomically importa … Genetic analysis of functions involved in adhesion of Pseudomonas putida to seeds J Bacteriol. 2000 May;182(9):2363-9. doi: 10.1128/JB.182.9.2363-2369.2000. ...
WhatsApp: +86 18221755073
The adhesion of Pseudomonas fluorescens (ATCC 17552) to nonpolarized and negatively polarized thin films of gold was studied in situ by contrast microscopy using a thin-film …
WhatsApp: +86 18221755073
Adhesion to nonpolarized gold surfaces readily increased with the time of exposition at both ionic-strength values. At negative potentials (-0.2 and -0.5 V [Ag/AgCl-KCl saturated …
WhatsApp: +86 18221755073
Bacterial adhesion on substrates was performed during the early stages. Cultures in log phase were adjusted to an OD 600 = 0.05 in M63 medium and transferred to a 24-well plate where slides (2 cm 2) were placed upright in each well (Fig. 1), so that P. aeruginosa biofilms formed at the medium-air interface. After 1, 3 or 5 h at 30 °C, the slides were rinsed three times …
WhatsApp: +86 18221755073
Pseudomonas aeruginosa as an opportunistic human pathogen that causes lethal infections in immunocompromised patients. Type IV pili are critical factors in virulence and colonization of P. aeruginosa in acute burn wound infection.
WhatsApp: +86 18221755073
The adhesion of pathogens to tissues and implanted devices, and the subsequent formation of biofilms on these surfaces, represents the primary step of many microbial infections. 1−4 Because biofilm-associated microbes are resistant to many antimicrobial agents, there is an urgent need to better understand the molecular basis of biofilm formation and to develop new …
WhatsApp: +86 18221755073
Advanced studies have demonstrated that N-acyl-homoserine lactone (AHL) signaling molecules can mediate the initial adhesion of bacteria to the carrier surface (Feng et al., 2021; Wang et al., 2021).The regulation effect of AHLs secreted by bacteria has also been extended to modifying the growth and aggregation of microalgae in suspended systems …
WhatsApp: +86 18221755073
Objectives: This study investigates the impact of nutrient availability on the growth, adhesion, and biofilm formation of Pseudomonas aeruginosa ATCC 27853 under static conditions.Methods: Bacterial behaviour was evaluated in nutrient-rich Luria-Bertani (LB) broth and nutrient-limited M9 media, specifically lacking carbon (M9-C), nitrogen (M9-N), or …
WhatsApp: +86 18221755073
The adhesion of Pseudomonas fluorescens (ATCC 17552) to nonpolarized and negatively polarized thin films of gold was studied in situ by contrast microscopy using a thin …
WhatsApp: +86 18221755073