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9 Newest Publications about the topic filtration systems

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Filtration Parameters Influencing Circulating Tumor Cell Enrichment from Whole Blood

26-Apr-2013 | Frank A. W. Coumans et al., PLoS ONE, 2013

by Frank A. W. Coumans, Guus van Dalum, Markus Beck, Leon W. M. M. Terstappen Filtration can achieve circulating tumor cell (CTC) enrichment from blood. Key parameters such as flow-rate, applied pressure, and fixation, vary largely between assays and their influence is not well understood. ...

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Heterogeneity of microbial community structures inside the up-flow biological activated carbon (BAC) filters for the treatment of drinking water

24-Aug-2012 | Xiaobin Liao, Chao Chen, Chih-Hsiang Chang, Zhao Wang, Xiaojian Zhang, Shuguang Xie, Biotechnology and Bioprocess Engineering, 2012

Filtration using biological activated carbon (BAC) performs well in the removal of biodegradable dissolved organic carbon from water sources. The application of ozonation followed by up-flow BAC filtration has gained increasing attention in the world scale. In this study, a pilotscale up-flow BAC ...

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Complement profile and activation mechanisms by different LDL apheresis systems

07-May-2012 | Anders Hovland, Randolf Hardersen, Erik Waage Nielsen, Terje Enebakk, Dorte Christiansen, Judith Krey Ludviksen ..., Acta Biomaterialia, 2012

Extracorporeal removal of low-density lipoprotein (LDL) cholesterol by means of selective LDL apheresis is indicated in otherwise uncontrolled familial hypercholesterolemia. During blood–biomaterial interaction other constituents than the LDL particles are affected, including the complement ...

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Complement profile and activation mechanisms by different LDL apheresis systems

25-Feb-2012 | Anders Hovland, Randolf Hardersen, Erik Waage Nielsen, Terje Enebakk, Dorte Christiansen, ..., Acta Biomaterialia, 2012

Extracorporeal removal of LDL-cholesterol by means of selective LDL apheresis is indicated in familial hypercholesterolemia otherwise not controlled. During blood-biomaterial interaction, other constituents than the LDL particles are affected including the complement system. We set up an exvivo ...

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EVALUATION OF ANTIMICROBIAL ACTIVITY OF A POLYHEXAMETHYLENE BIGUANIDE‐COATED TEXTILE BY MONITORING BOTH BACTERIAL GROWTH (ISO 20743/2005 STANDARD) AND VIABILITY (LIVE/DEAD BACLIGHT KIT)

12-Dec-2011 | E. CHADEAU, C. BRUNON, P. DEGRAEVE, D. LEONARD, C. GROSSIORD, F. BESSUEILLE, A. COTTAZ, F. RENAUD, I. FERREIRA, C. D ..., Journal of Food Safety, 2011

ABSTRACT Antimicrobial textiles (65% cotton – 35% polyester) were functionalized using a patented technology that combines an antimicrobial molecule – polyhexamethylene biguanide (PHMB) and a precipitating agent – sodium laurylsulphate. Surface characterization was performed by x‐ray ...

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Purification of chondroitin precursor from Escherichia coli K4 fermentation broth using membrane processing

01-Apr-2011 | Schiraldi, Chiara; Carcarino, Immacolata Loredana; Alfano, Alberto; Restaino, Odile Francesca; Panariello, Andrea; D ..., Biotechnology Journal, 2011

Abstract Recently the possibility of producing the capsular polysaccharide K4, a fructosylated chondroitin, in fed‐batch experiments was assessed. In the present study, a novel downstream process to obtain chondroitin from Escherichia coli K4 fermentation broth was developed. The process is ...

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Quantitative real-time PCR and fluorescence in situ hybridization approaches for enumerating Brevundimonas diminuta in drinking water

22-May-2010 | Robert S. Donofrio, Lorelle L. Bestervelt, Ratul Saha, Susan T. Bagley, Journal of Industrial Microbiology and Biotechnology, 2010

Brevundimonas diminuta is a small Gram-negative bacterium used for validation of membranes and filters used in the pharmaceutical and drinking water treatment industries. Current assays are time consuming, nonselective, and may be subject to interference by competing indigenous microorganisms. ...

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Probing protein colloidal behavior in membrane‐based separation processes using spectrofluorometric Rayleigh scattering data

01-May-2010 | Elshereef, Rand; Budman, Hector; Moresoli, Christine; Legge, Raymond L., Biotechnology Progress, 2010

One of the primary problems in membrane‐based protein separation is membrane fouling. In this study we explored the feasibility of employing Rayleigh light scattering data from fluorescence studies combined with chemometric techniques to determine whether a correlation could be established with ...

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Selective enumeration strategies for Brevundimonas diminuta from drinking water

20-Jan-2010 | Robert Scott Donofrio, Lorelle L. Bestervelt, Ratul Saha, Susan T. Bagley, Journal of Industrial Microbiology and Biotechnology, 2010

Brevundimonas diminuta is used as a control organism for validating the efficiency of water filtration systems. Since these protocols use nonselective growth media, heterotrophic plate count bacteria (HPCs) indigenous to the water distribution system may interfere with B. diminuta enumeration, ...

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