نتایج جستجو برای: eps

تعداد نتایج: 5095  

2009
SA Amy S. Gong Carl H. Bolster Magda Benavides Sharon L. Walker

Extracellular polymeric substances (EPS) production and composition for Salmonella pullorum SA 1685 exposed to artificial groundwater (AGW) has been examined utilizing three EPS extraction methods: lyophilization, ethanol, and sonication. Experiments were carried out to evaluate the robustness of three EPS extraction methods and the sensitivity of each to subtle changes in solution ionic streng...

2016
Xuan Guo Xu Wang Junxin Liu

Extracellular polymeric substances (EPS) appear to play a critical role in the formation of bioaggregates, such as sludge flocs, in activated sludge processes. Here, we systematically investigated the composition and chemical structure of various EPS fractions excreted from an activated sludge culture using multi-analysis techniques to examine the ability of the sludge to aggregate. Chemical an...

2017
Woojae Myung Jin Hong Park Sook-Young Woo Seonwoo Kim Sang Ha Kim Jae Won Chung Hyo Shin Kang Shinn-Won Lim Junbae Choi Duk L. Na Seong Yoon Kim Jae-Hong Lee Seol-Heui Han Seong Hye Choi Sang Yun Kim Bernard J. Carroll Doh Kwan Kim

Objective Extrapyramidal signs (EPS) are common in patients with mild cognitive impairment (MCI). However, few studies have assessed the effect of EPS on the clinical course of MCI. We aimed to evaluate whether patients with EPS show more frequent progression from MCI to Alzheimer's disease (AD) and to other types of dementia. Methods Participants (n=882) with MCI were recruited, and were fol...

Journal: :Frontiers in microbiology 2016
Ang Liu Zi-Hao Mi Xiao-Yu Zheng Yang Yu Hai-Nan Su Xiu-Lan Chen Bin-Bin Xie Bai-Cheng Zhou Yu-Zhong Zhang Qi-Long Qin

Most marine bacteria secrete exopolysaccharide (EPS), which is important for bacterial survival in the marine environment. However, it is still unclear whether the self-secreted EPS is involved in marine bacterial motility. Here we studied the role of EPS in the lateral flagella-driven swarming motility of benthic bacterium Pseudoalteromonas sp. SM9913 (SM9913) by a comparison of wild SM9913 an...

Journal: :Applied and environmental microbiology 2005
B S McSwain R L Irvine M Hausner P A Wilderer

Extracellular polymeric substances (EPS) were quantified in flocculent and aerobic granular sludge developed in two sequencing batch reactors with the same shear force but different settling times. Several EPS extraction methods were compared to investigate how different methods affect EPS chemical characterization, and fluorescent stains were used to visualize EPS in intact samples and 20-mum ...

Journal: :Applied and environmental microbiology 2010
M G Baker S V Lalonde K O Konhauser J M Foght

Bacterial surface layers, such as extracellular polymeric substances (EPS), are known to play an important role in metal sorption and biomineralization; however, there have been very few studies investigating how environmentally induced changes in EPS production affect the cell's surface chemistry and reactivity. Acid-base titrations, cadmium adsorption assays, and Fourier transform infrared sp...

2018
Domenico Careddu Andrea Pettenazzo

Background In numerous randomized controlled trials (RCTs) and systematic reviews such as those published by the Cochrane Collaboration, Pelargonium sidoides extract EPs® 7630 was shown to be effective in acute respiratory tract infections (aRTI) in all investigated age-groups. This narrative review focuses on recently published results from RCTs investigating the clinical efficacy and safety o...

2012
Niko Braun M. Dominik Alscher Peter Fritz Joerg Latus Ilka Edenhofer Fabian Reimold Seth L. Alper Martin Kimmel Dagmar Biegger Maja Lindenmeyer Clemens D. Cohen Rudolf P. Wüthrich Stephan Segerer

Encapsulating peritoneal sclerosis (EPS) is a life threatening complication of peritoneal dialysis (PD). Podoplanin is a glycoprotein expressed by mesothelial cells, lymphatic endothelial cells, and myofibroblasts in peritoneal biopsies from patients with EPS. To evaluate podoplanin as a marker of EPS we measured podoplanin mRNA and described the morphological patterns of podoplanin-positive ce...

Journal: :Scientific reports 2016
Qian Wang Fuxing Kang Yanzheng Gao Xuewei Mao Xiaojie Hu

Most artificial nanomaterials are known to exhibit broad-spectrum bactericidal activity; however, the defence mechanisms that bacteria use based on extracellular polymeric substances (EPS) to detoxify nanoparticles (NPs) are not well known. We ruled out the possibility of ion-specific bactericidal activity by showing the lack of equivalent dissolved zinc and silicon toxicity and determined the ...

2014
Surajit Das Samir Kumar Patra

Nanomaterials are the leading edge to the rapidly developing nanotechnology. For the synthesis of nanomaterials over a wide range of chemical composition, the development of reliable and efficient methods is a challenging issue in nanotechnology. In context to this green synthesis of nanoparticles using biological systems, plant products and microorganisms are potentially considerable because o...

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