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Journal articles on the topic 'Ultrafiltration'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Tay, Kirsty Luo-Yng, Abdel Rahman Osman, Esyn Ee Xin Yeoh, et al. "Ultrafiltration versus Diuretics on Prognostic Cardiac and Renal Biomarkers in Acute Decompensated Heart Failure: A Systematic Review and Meta-Analysis." Journal of Clinical Medicine 12, no. 8 (2023): 2793. http://dx.doi.org/10.3390/jcm12082793.

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Existing systematic reviews have insufficiently delineated the differing cardiac and renal profile of ultrafiltration compared to diuretics as a method of decongestion in acute decompensated heart failure. This meta-analysis will investigate the impact of ultrafiltration compared to diuretics on prognostic cardiac and renal biomarkers. We searched PubMed Central, Ovid MEDLINE®, Ovid Embase, all EBM reviews, and Web of Science Core Collection for randomised controlled trials published before 21 July 2022. Our main outcome measures were cardiac (brain natriuretic peptide and N-terminal pro-brain

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2

Petterson, Craig M., Alfred H. Stammers, Ryan J. Kohtz, et al. "The Effects of Ultrafiltration on e-Aminocaproic Acid: An In Vitro Analysis." Journal of ExtraCorporeal Technology 34, no. 3 (2002): 197–202. http://dx.doi.org/10.1051/ject/2002343197.

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Blood conservation strategies have become a standard of practice in cardiac surgery, with the use of antifibrinolytic agents and ultrafiltration two popular techniques. The purpose of this study was to evaluate the effects of continuous ultrafiltration on e-aminocaproic acid (EACA) utilizing functional coagulation analysis. A fibrinolytic assay was developed to detect EACA using the thromboelastograph (TEG) and urokinase (0.138 units 0.360 mL−1). Fresh bovine blood (23 ± 1% hematocrit) was pumped (100 mL min−1) through an ultrafiltrator (HPH 400) at 37°C with a transmembrane pressure of 280 mm

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3

Han, You Qi, De Ming Zhu, Zhou Kong Su, and Wen Xiang Ding. "Ultrafiltration in Pediatric Cardiac Surgical Procedures." Journal of ExtraCorporeal Technology 23, no. 3 (1991): 63–65. http://dx.doi.org/10.1051/ject/199123363.

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Ultrafiltration is an extracorporeal technique that employs the principle of convective solution transport across a semipermeable membrane and by which plasma water is removed from the dilute blood during cardiopulmonary bypass. Ultrafiltration has been used in 40 pediatric cases who underwent corrective surgery for congenital heart disease (TOF 12, VSD 23, ASD 4 and PAVC 1) intraoperatively. The patients' ages ranged from 10months to 9 years (4.9±2.6yrs)and weights from 7 to 28kgs (16.4±5.8 kgs). The ultrafiltrator was interposed in the port of arterial filter of the CPB circuit and performed

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4

Ming, Zhu De, Wang Wei, Chen Hong, Zhang Wei, and Ding Wen Xiang. "Balanced Ultrafiltration, Modified Ultrafiltration, and Balanced Ultrafiltration with Modified Ultrafiltration in Pediatric Cardiopulmonary Bypass." Journal of ExtraCorporeal Technology 33, no. 4 (2001): 223–26. http://dx.doi.org/10.1051/ject/2001334223.

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This study evaluates the effect of balanced ultrafiltration, modified ultrafiltration, and balanced ultrafiltration with modified ultrafiltration on inflammatory mediators in children’s open-heart surgery. Eighty children with congenital heart disease were randomly divided into four groups: control group (C group); balanced ultrafiltration group (BUF group); modified ultrafiltration group (MUF group); and balanced ultrafiltration with modified ultrafiltration group (B+M group). Clinical data of these groups were similar. Tumor necrosis factor (TNF), interleukin-8(IL-8), and E-selectin were mea

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5

Soat, Marian. "Ultrafiltration." Nursing Management (Springhouse) 39, no. 1 (2008): 48–49. http://dx.doi.org/10.1097/01.numa.0000305993.07980.51.

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6

Bourge, Robert C., and José A. Tallaj. "Ultrafiltration." Journal of the American College of Cardiology 46, no. 11 (2005): 2052–53. http://dx.doi.org/10.1016/j.jacc.2005.09.014.

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7

Babka, Ronald M., James Petress, Richard Briggs, Robert Helsel, and John Mack. "Conventional haemofiltration during routine coronary bypass surgery." Perfusion 12, no. 3 (1997): 187–92. http://dx.doi.org/10.1177/026765919701200307.

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The use of conventional ultrafiltration during cardiopulmonary bypass (CPB) has been well recognized as an efficient modality of therapy to reverse the effects of deliberate haemodilution. Routine use of the haemofilter was prospectively studied on 60 patients undergoing coronary artery bypass surgery. Group A consisted of 30 patients on whom the ultrafiltrator was used and compared to group B who did not receive the ultrafiltration technique. The COBE 1200 ultrafiltration device was used. The results of the study demonstrated that, in group A, the mean total amount of ultrafiltrate collected

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8

Liu, Shu Xing, and Bei Wang. "Purification of Ferulic Acid from Wheat by Ultrafiltration Technology." Advanced Materials Research 524-527 (May 2012): 2294–97. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.2294.

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Purification extraction of ferulic acid from wheat bran by using ultrafiltration,based on the molecular weight cutoff (MWCO) of ultrafiltration membranes,ultrafiltration pressure,sample concentration,ultrafiltration time these four factors influence of the membrane flux,determine the best the ultrafiltration conditions.

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Lazarev, Sergey I., Yuri V. Golovin, Irina V. Khorokhorina, Sergey V. Kovalev, and Alexandr A. Levin. "KINETIC AND STRUCTURAL CHARACTERISTICS OF ULTRAFILTRATIONAL MEMBRANES AT SEPARATION OF SOLUTIONS CONTAINING SODIUM LAURYLSULPHATE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 10 (2019): 89–95. http://dx.doi.org/10.6060/ivkkt.20196210.6031.

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In work the generalized analysis of literary data on a research of relative permeability ratio of various types of porous organic and inorganic membranes was submitted. Application of a method of X-ray analysis of samples of the semipermeable ultrafiltrational membranes on a diffractometer of DRON-3 and a specific output flow on a flat-chamber ultrafiltration unit is shown. In materials of work the pilot and theoretical studies on isokinetic zones and structural characteristics of polymeric semipermeable membranes in the course of ultrafiltrational separation of the technological solutions con

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10

Babenyshev, S. P., V. E. Zhidkov, D. S. Mamay, V. P. Utkin, and N. A. Shapakov. "ULTRAFILTRATION OF MODIFIED MILK WHEY." Food and Raw Materials 4, no. 2 (2016): 101–10. http://dx.doi.org/10.21179/2308-4057-2016-2-101-110.

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11

Chaoqun Liu, Chaoqun Liu, Tao Du Tao Du, Jia Wang Jia Wang, Xinke Zhao Xinke Zhao, Yingdong Li Yingdong Li, and Kai Liu Kai Liu. "Range of Molecular Weight of Different Effective Components in the Aqueous Extract of Angelica-Radix Hedysari Ultrafiltration Content by HPLC-MS." Journal of the chemical society of pakistan 46, no. 5 (2024): 474. http://dx.doi.org/10.52568/001557/jcsp/46.05.2024.

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The molecular weight range of effective components in the aqueous extract of Angelica-Radix Hedysari (1:5) was analyzed, providing a foundation for understanding its chemical composition and pharmacodynamics. Ultrafiltration technology was used to prepare different forms of the extract, including water extract powder, ultrafiltration powder, ultrafiltration saponin component powder, and ultrafiltration polysaccharide component powder. High-performance liquid chromatography-mass spectrometric (HPLC-MS) were used to analyze these extracts. Comparison between the components of Angelica-Radix Hedy

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12

Cherkasov, A. N. "Selective ultrafiltration." Journal of Membrane Science 50, no. 2 (1990): 109–30. http://dx.doi.org/10.1016/s0376-7388(00)80310-5.

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13

McCray, Scott B. "Ultrafiltration Handbook." Journal of Membrane Science 32, no. 2-3 (1987): 341–42. http://dx.doi.org/10.1016/s0376-7388(00)85017-6.

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14

Jönsson, A. "Ultrafiltration applications." Desalination 77, no. 1-3 (1990): 135–79. http://dx.doi.org/10.1016/0011-9164(90)80008-y.

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15

Jönsson, Ann-Sofi, and Gun Trägårdh. "Ultrafiltration applications." Desalination 77 (March 1990): 135–79. http://dx.doi.org/10.1016/0011-9164(90)85024-5.

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16

Li, Yinghua, Yiyan Wang, Mengxi Liao, Fei Su, Yue Zhang, and Linlin Peng. "Effects of electroflocculation/oxidation pretreatment on the fouling characteristics of ultrafiltration membranes." Water Science and Technology 85, no. 4 (2022): 1079–89. http://dx.doi.org/10.2166/wst.2022.016.

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Abstract In order to reduce the membrane pollution of ultrafiltration caused by natural organic matter and improve the treatment efficiency, electroflocculation/oxidation is used as the premembrane treatment method. The membrane specific flux attenuation characteristics was compared and analyzed under the conditions of direct ultrafiltration and electroflocculation/oxidation-ultrafiltration. Combined with the analysis of the reversibility of membrane fouling, the mechanism of electroflocculation/oxidation pretreatment to alleviate ultrafiltration membrane fouling was evaluated, and the membran

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17

Naik, SK, A. Knight, and MJ Elliott. "A successful modification of ultrafiltration for cardiopulmonary bypass in children." Perfusion 6, no. 1 (1991): 41–50. http://dx.doi.org/10.1177/026765919100600106.

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Total body water (TBW) is increased after cardiopulmonary bypass (CPB) resulting in tissue oedema and organ dysfunction. Ultrafiltration has been used to reduce this accumulation of water, although conventional ultrafiltration seemed ineffective in reducing the rise in TBW after CPB in our clinical experience. We describe a modified technique in which ultrafiltration is performed in the first 10 minutes after the patient is weaned from bypass, returning nearly all the blood in the circuit to the patient and elevating the haematocrit (Hct) to any predetermined level. We carried out a pilot stud

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18

Krack, Genevieve, Giusto Viglino, Pier Luigi Cavalli, et al. "Intraperitoneal Administration of Phospha Tidylcholine Improves Ul Trafil Tration in Continuous Ambulatory Peritoneal Dialysis Patients." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 12, no. 4 (1992): 359–64. http://dx.doi.org/10.1177/089686089201200405.

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Reports in the literature have linked a low phosphatidylcholine content in continuous ambulatory peritoneal dialysis {CAPD) effluent to ultrafiltration loss. Clinical evidence suggests that adding phosphatidylcholine to the dialysis solution enhances ultrafiltration. A clinical study has been designed to clarify the effect of phosphatidylcholine on ultrafiltration in CAPD patients with normal ultrafiltration. A weekly measurement of the peritoneal equilibration test was conducted per patient in the hospital. A comparison between the control dialysis solution {three-week period) and the phospha

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19

Krediet, Raymond T., Colin B. Brown, Alexander L. T. Imholz, and Gerardus C. M. Koomen. "Protein Clearance and Icodextrin." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 14, no. 2_suppl (1994): 39–44. http://dx.doi.org/10.1177/089686089401402s06.

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Objective To analyze the peritoneal transport of serum proteins during continuous ambulatory peritoneal dialysis (CAPD) with icodextrin. Design A comparison was made between CAPD with glucose-based dialysate and, in the same patients, 4 weeks after the instillation of icodextrin for the long night dwell, with icodextrin-based dialysate. Patients Ten stable CAPD patients, who participated in a large randomized multicenter study comparing icodextrin with glucose-based dialysate. Five patients used glucose 1.5% dialysate for the night dwell before its replacement by icodextrin (good ultrafiltrati

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20

Mamay, Dmitriy, Sergey Babenyshev, Angelina Mamay, and Vyacheslav Lisitsyn. "Ultrafiltration of skim milk microfiltration permeate." BIO Web of Conferences 116 (2024): 02015. http://dx.doi.org/10.1051/bioconf/202411602015.

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The purpose of the research conducted in the laboratory is to study the basic regularities of the ultrafiltration process of microfiltration permeate of skim milk, called native whey (NW). The objects of the research are NW, its ultrafiltration process and the obtained ultrafiltration retentate, NW permeate. To create the initial information base of the research work we used the results of the analysis of literature data from the libraries of the Russian State Library, North Caucasus Federal University, as well as the global network of the Internet and so on. Physicochemical characteristics of

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21

Bierer, Joel, Roger Stanzel, Mark Henderson, Suvro Sett, and David Horne. "Ultrafiltration in Pediatric Cardiac Surgery Review." World Journal for Pediatric and Congenital Heart Surgery 10, no. 6 (2019): 778–88. http://dx.doi.org/10.1177/2150135119870176.

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Introduction: The use of cardiopulmonary bypass in pediatric cardiac surgery is associated with significant inflammation, fluid overload, and end-organ dysfunction yielding morbidity and mortality. For decades, various intraoperative ultrafiltration techniques such as conventional ultrafiltration, modified ultrafiltration (MUF), zero-balance ultrafiltration (ZBUF), and combination techniques (ZBUF-MUF) have been used to mitigate these toxicities and promote improved postoperative outcomes. However, there is currently no consensus on the ultrafiltration technique or strategy that yields the mos

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22

Elliott, Martin J. "Ultrafiltration and modified ultrafiltration in pediatric open heart operations." Annals of Thoracic Surgery 56, no. 6 (1993): 1518–22. http://dx.doi.org/10.1016/0003-4975(93)90744-3.

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23

Breborowicz, Andrzej, and Jan Knapowski. "Transmesothelial Ultrafiltration IN VITRO." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 6, no. 3 (1986): 124–27. http://dx.doi.org/10.1177/089686088600600303.

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The authors created transmesothelial ultrafiltration in vitro by inducing an osmotic gradient (vasc-300 mOsm: meso-400 mOsm) across the membrane. Calculated value of hydraulic conductivity of the mesothelium is comparable with analogous value for endothelium of the microvessels. They propose that transperitoneal ultrafiltration develops in two phases: Transmesothelial ultrafiltration, which augments tonicity of the interstitial tissue which is followed by transendothelial ultrafiltration due to the osmotic gradient between the dehydrated interstitium and the vascular space. Hypertonic medium o

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Teitelbaum, Isaac. "Ultrafiltration Failure in Peritoneal Dialysis: A Pathophysiologic Approach." Blood Purification 39, no. 1-3 (2015): 70–73. http://dx.doi.org/10.1159/000368972.

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Background: Ultrafiltration failure is a significant cause of technique failure for peritoneal dialysis and subsequent transfer to hemodialysis. Summary: Ultrafiltration failure is defined as failure to achieve at least 400 ml of net ultrafiltration during a 4 h dwell using 4.25% dextrose. Four major causes of ultrafiltration failure have been described. A highly effective peritoneal surface area is characterized by transition to a very rapid transport state with D/P creatinine >0.81. Low osmotic conductance to glucose is characterized by attenuation of sodium sieving and decreased peritone

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Balafa, Olga, Anila Duni, Paraskevi Tseke, et al. "Survival of Peritoneal Membrane Function on Biocompatible Dialysis Solutions in a Peritoneal Dialysis Cohort Assessed by a Novel Test." Journal of Clinical Medicine 10, no. 16 (2021): 3650. http://dx.doi.org/10.3390/jcm10163650.

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Background: Longitudinal surveillance of peritoneal membrane function is crucial in defining patients with a risk of ultrafiltration failure. Long PD is associated with increased low molecular weight solute transport and decreased ultrafiltration and free water transport. Classic PET test only provides information about low molecular solute transport, and the vast majority of longitudinal studies are based on this test and include patients using conventional dialysates. Our aim was to prospectively analyze longitudinal data on peritoneal function in patients on biocompatible solutions using a

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Assa, Solmaz, Johanna Kuipers, Esmée Ettema, et al. "Effect of isolated ultrafiltration and isovolemic dialysis on myocardial perfusion and left ventricular function assessed with13N-NH3positron emission tomography and echocardiography." American Journal of Physiology-Renal Physiology 314, no. 3 (2018): F445—F452. http://dx.doi.org/10.1152/ajprenal.00368.2017.

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Hemodialysis is associated with a fall in myocardial perfusion and may induce regional left ventricular (LV) systolic dysfunction. The pathophysiology of this entity is incompletely understood, and the contribution of ultrafiltration and diffusive dialysis has not been studied. We investigated the effect of isolated ultrafiltration and isovolemic dialysis on myocardial perfusion and LV function. Eight patients (7 male, aged 55 ± 18 yr) underwent 60 min of isolated ultrafiltration and 60 min of isovolemic dialysis in randomized order. Myocardial perfusion was assessed by13N-NH3positron emission

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Ho, Chii-Dong, Jr-Wei Tu, Yih-Hang Chen, and Thiam Leng Chew. "Two-Dimensional Theoretical Analysis and Experimental Study of Mass Transfer in a Hollow-Fiber Dialysis Module Coupled with Ultrafiltration Operations." Membranes 13, no. 8 (2023): 702. http://dx.doi.org/10.3390/membranes13080702.

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This research theoretically and experimentally develops a hollow-fiber dialysis module coupled with ultrafiltration operations by introducing a trans-membrane pressure during the membrane dialysis process, which can be applied to the waste metabolic end products in the human body for improving the dialysis efficiency. The solutes were transported by both diffusion and convection from the concentration driving-force gradient between retentate and dialysate phases across the membrane, compared to the traditional dialysis processes by diffusion only. A two-dimensional modeling of such a dialysis-

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Zakharov, Ye V., A. L. Levit, D. A. Furazhkov, A. I. Svalov, T. L. Buldakova, and K. B. Kazantsev. "Ultrafiltration as a method for regulating the volume balance during correction of transposition of great vessels in newborns." Patologiya krovoobrashcheniya i kardiokhirurgiya 18, no. 3 (2015): 24. http://dx.doi.org/10.21688/1681-3472-2014-3-24-26.

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Correction of congenital heart disease in newborns under extracorporeal circulation is accompanied by fluid overload. To eliminate this pathological state, the method of ultrafiltration is commonly used. The paper presents a comparative analysis of two methods of ultrafiltration in the arterial switch procedure in 20 newborns with transposition of the great vessels. In group I (n = 10) we conducted conventional ultrafiltration during cardiopulmonary bypass; and in group II (n = 10), modified ultrafiltration after completing the cardiopulmonary bypass was used. The data obtained indicate that t

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De Vecchi, Amedeo, Claudia Castelnovo, Luisella Guerra, and Antonio Scalamogna. "Phosphatidylcholine Administration in Continuous Ambulatory Peritoneal Dialysis (CAPD) Patients with Reduced Ultrafiltration." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 9, no. 3 (1989): 207–10. http://dx.doi.org/10.1177/089686088900900312.

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To evaluate the possible role of oral phosphatidylcholine administration in improving peritoneal ultrafiltration sixteen continuous ambulatory peritoneal dialysis (CAPD) patients with a reduced ultrafiltration rate (less than 500 mL/4 h after a standard 3.86% glucose exchange) were studied. Three patients spontaneously stopped phosphatidylcholine due to gastric side effects. Three out of the remaining 13 patients showed a mild increase of standard ultrafiltration, which was not followed by any increase in daily dialysate output. No differences in glucose, sodium, potassium, urea and creatinine

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Gienau, Tobias, Artjom Ehrmanntraut, Matthias Kraume, and Sandra Rosenberger. "Influence of Ozone Treatment on Ultrafiltration Performance and Nutrient Flow in a Membrane Based Nutrient Recovery Process from Anaerobic Digestate." Membranes 10, no. 4 (2020): 64. http://dx.doi.org/10.3390/membranes10040064.

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Membrane filtration of biological suspensions is frequently limited by fouling. This mechanism is well understood for ultrafiltration of activated sludge in membrane bioreactors. A rather young application of ultrafiltration is the recovery of nutrients from anaerobic digestates, e.g., from agricultural biogas plants. A process chain of solid/liquid separation, ultrafiltration, and reverse osmoses separates the digestate into different products: an organic N-P-fertilizer (solid digestate), a recirculate (UF retentate), a liquid N-K-fertilizer (RO retentate) and water. Despite the preceding par

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Dong, Zijun, Lemuel Rivera Fuentes, Sharon Rao, and Peter Kotanko. "Closed Loop Ultrafiltration Feedback Control in Hemodialysis: A Narrative Review." Toxins 16, no. 8 (2024): 351. http://dx.doi.org/10.3390/toxins16080351.

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While life-sustaining, hemodialysis is a non-physiological treatment modality that exerts stress on the patient, primarily due to fluid shifts during ultrafiltration. Automated feedback control systems, integrated with sensors that continuously monitor bio-signals such as blood volume, can adjust hemodialysis treatment parameters, e.g., ultrafiltration rate, in real-time. These systems hold promise to mitigate hemodynamic stress, prevent intradialytic hypotension, and improve the removal of water and electrolytes in chronic hemodialysis patients. However, robust evidence supporting their clini

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Wang, Wei, Hui Ming Huang, De Ming Zhu, Hong Chen, Zhao Kang Su, and Wei Xiang Ding. "Modified ultrafiltration in paediatric cardiopulmonary bypass." Perfusion 13, no. 5 (1998): 304–10. http://dx.doi.org/10.1177/026765919801300504.

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Cardiopulmonary bypass (CPB), a nonphysiological procedure, is associated with haemodilution and the inflammatory response, causing the accumulation of body water and organ dysfunction. The purpose of this study was to evaluate the efficacy of modified ultrafiltration. Forty paediatric patients undergoing cardiac operations were randomized into a control group and a modified ultrafiltration group. Blood cells, protein and cytokine concentrations were recorded for 24 h postoperatively. As the fluid was removed at 50 ml/min, both blood cells and protein were concentrated by modified ultrafiltrat

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Wu, Buyun, Jian Sun, Si Liu, et al. "Relationship among Mortality of Patients with Acute Kidney Injury after Cardiac Surgery, Fluid Balance and Ultrafiltration of Renal Replacement Therapy: An Observational Study." Blood Purification 44, no. 1 (2017): 32–39. http://dx.doi.org/10.1159/000455063.

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Background/Aims: The study aimed to investigate the relationship among mortality of patients with cardiac surgery-associated acute kidney injury (CSA-AKI), fluid balance, and ultrafiltration of renal replacement therapy (RRT). Methods: From January 2009 to October 2015, hospitalized patients with CSA-AKI receiving continuous or prolonged intermittent RRT were screened. The effects of fluid balance and ultrafiltration of RRT on clinical outcome were analyzed. Results: The 30-day mortality of all the 63 patients in the study was 58.6%. Compared with the death group, the survival group had a sign

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Rizaev, Abdumalik Nabiyevich, Umarhodja Bakhramov, Uchkun Vafokulovich Umarov, Gulchehra Rashidkhodjaevna Rikhsikhodjaeva, and Nagima Turdibaevna Khudaiberganova. "ASSESSMENT OF EFFICIENCY OF ULTRAFILTRATION METHOD IN TREATMENT OF OILY WASTEWATERS." Multidisciplinary Journal of Science and Technology 4, no. 4 (2024): 149–53. https://doi.org/10.5281/zenodo.10948081.

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This paper is devoted to the study of ultrafiltration method in the context of oily wastewater treatment. Oily wastewater is a serious environmental problem and requires effective treatment methods to prevent pollution of water resources. The ultrafiltration method is a promising approach to remove micro- and macromolecular contaminants, including petroleum products, from wastewater. This article discusses the principles of ultrafiltration, the main components of the system and the process of oily wastewater treatment. In addition, the advantages and limitations of the ultrafiltration method a

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Zhao, Zhi Ling, Ying Lin, and Shu Po Liu. "Study on Ultrafiltration Membrane Technology for Water Purification in Zhengzhou." Advanced Materials Research 287-290 (July 2011): 2156–60. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.2156.

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The ultrafiltration membrane technology which has been regarded as the water treatment technology for the human beings in the 21 century develops on the basis of reverse osmosis. The main function of the ultrafiltration membrane technology is to clear liquid, to reject solute concentration and solute fractionation, which can dislodge biological molecules, polymers and colloidal substances. The study introduces the situation of ultrafiltration membrane in treating drinking water in the fundament of the experiment of ultrafiltration membrane technology in Shiyuan water treatment plant in Zhengzh

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Hasanah, Hasanah, Iriani Setyaningsih, and Uju Uju. "Harvesting and Separation Technique of Porphyridium cruentum Polysaccharide Using Ultrafiltration Membrane." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 2 (2016): 110. http://dx.doi.org/10.17844/jphpi.v19i2.13110.

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Red microalga Porphyridium cruentum secreting polysaccharides into its medium culture. Harvesting<br />and separation of polysaccharide of P. cruentum usually use centrifugation and in large scale needs high<br />cost. The use of ultrafiltration membrane can be one of the alternatives for harvesting and separation of<br />P. cruentum polysaccharide. This study aimed to determine the characteristic of membrane and permeat<br />from harvesting and separation of P. cruentum polysaccharide using ultrafiltration. Research consisted of<br />four stages : membrane charac

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Hasanah, Hasanah, Iriani Setyaningsih, and Uju Uju. "Harvesting and Separation Technique of Porphyridium cruentum Polysaccharide Using Ultrafiltration Membrane." Jurnal Pengolahan Hasil Perikanan Indonesia 19, no. 2 (2016): 110. http://dx.doi.org/10.17844/jphpi.v19i2.13454.

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Red microalga Porphyridium cruentum secreting polysaccharides into its medium culture. Harvesting<br />and separation of polysaccharide of P. cruentum usually use centrifugation and in large scale needs high<br />cost. The use of ultrafiltration membrane can be one of the alternatives for harvesting and separation of<br />P. cruentum polysaccharide. This study aimed to determine the characteristic of membrane and permeat<br />from harvesting and separation of P. cruentum polysaccharide using ultrafiltration. Research consisted of<br />four stages : membrane charac

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Rehman, Muneeb Ur, Tariq Rao, Naila Niaz, Shahid Nafees, Naseem Azad, and Muhammad Shoaib Umar. "EFFECT OF MODIFIED ULTRAFILTRATION ON HEMODYNAMICS IN PEDIATRIC CARDIAC SURGERY AT ARMED FORCES INSTITUTE OF CARDIOLOGY/ NATIONAL INSTITUTE OF HEART DISEASES (AFIC/NIHD)." Pakistan Armed Forces Medical Journal 70, Suppl-4 (2021): S757–61. http://dx.doi.org/10.51253/pafmj.v70isuppl-4.6019.

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Objective: To observe the effect of modified ultrafiltration on hemodynamics of pediatric patients. Study Design: A descriptive cross-sectional study. Place and Duration of Study: Pediatric Cardiac Surgery department, AFIC/NIHD Rawalpindi, from Jun 2019 to Dec 2019. Methodology: A total of 60 pediatric patients were included undergoing open-heart surgery with cardiopulmonary bypass, having age ≤6 years and weights ≤15kg. To assess hemodynamics parameters observed were pre modified ultrafiltration and post modified ultrafiltration measurements of haemoglobin level, systolic pr

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Kwong, Mary B. L., George G. Wu, Helen Rodella, Lidia Brandes, and Dimitrios G. Oreopoulos. "Effect of the Peritoneal Dialysate Buffer on UL TRafil Tration: Studies in Normal Rabbits." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 5, no. 3 (1985): 182–85. http://dx.doi.org/10.1177/089686088500500312.

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We studied an animal model to test the ultrafiltration capability of three different peritoneal dialysis solutions: Brand A, containing lactate and manufactured in Canada, Brand B, containing acetate and manufactured in U.S.A. and Brand C also containing acetate and manufactured in France. Solutions with 1.5 g0/o and 4.25 g0/o glucose concentrations were tested. We found no significant difference in the amount of ultrafiltration produced with the three brands when glucose concentration was 1.5 g0/o. However with glucose concentration of 4.25 g 0/o ultrafiltration was significantly lower with t

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LaLone, Brian J., Mark W. Turrentine, Ko Bando, et al. "Modified Ultrafiltration After Congenital Heart Surgery: A Veno–Venous Method Using a Dual-Lumen Hemodialysis Catheter." Journal of ExtraCorporeal Technology 32, no. 2 (2000): 95–103. http://dx.doi.org/10.1051/ject/2000322095.

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Perfusion practice surveys on modified ultrafiltration show most clinicians reporting the use of arterial to venous cannulation. With an arterial–venous (A–V) approach, the patient’s blood is accessed in a retrograde direction from the cardiopulmonary bypass aortic cannula, and the hemoconcentrated blood is returned to a catheter placed at a systemic venous return site. To avoid possible hazards of these arterial–venous techniques, we developed a veno–venous (V–V) modified ultrafiltration circuit and method that: (1) uses an 11.5 F dual-lumen hemodialysis catheter placed at a right atrial cann

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Armiyati, Yunie, Suharyo Hadisaputro, Shofa Chasani, and Untung Sujianto. "High Ultrafiltration Increasing Intradialytic Blood Pressure on Hemodialysis Patients." South East Asia Nursing Research 3, no. 1 (2021): 8. http://dx.doi.org/10.26714/seanr.3.1.2021.8-15.

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The increase in blood pressure when the patient is undergoing hemodialysis is experienced by patients with intradialytic hypertension. This condition can be very dangerous for the patient, must be prevented and needs to be controlled. Prevention can be done by controlling variables that can affect intradialytic blood pressure, including ultrafiltration during hemodialysis. This study aims to analyze the relationship between ultrafiltration (ultrafiltration goal, ultrafiltration rate) and intradialytic blood pressure. This research was a descriptive-analytic study with a cross-sectional design,

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Wang, Hai Chao, and Xiao Ling Lei. "Problems and Prospects of Water-Supply by Ultrafiltration." Key Engineering Materials 727 (January 2017): 837–40. http://dx.doi.org/10.4028/www.scientific.net/kem.727.837.

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General problems and prospects for water-supply using ultrafiltration technology are considered. The limits for application of this technology are indicated. The industrial water ultrafiltration plants appeared in the end of the XX century. Later in 2006 year the biggest in Europe plant purifying 250,000 m^3 of water per day by ultrafiltration was put into operation in Moscow. World experience shows that in large-scale station for purifying water the technology using combination of traditional methods with ozone treatment and sorption, and then membrane ultrafiltration is very useful.

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Rusthoven, Esther, Raymond T. Krediet, Hans L. Willems, Leo A. Monnens, and Cornelis H. Schröder. "Sodium Sieving in Children." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 25, no. 3_suppl (2005): 141–42. http://dx.doi.org/10.1177/089686080502503s37.

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Sodium sieving is a consequence of dissociation between the amount of water and sodium transported over the peritoneal membrane. This dissociation occurs in the presence of aquaporin-mediated water transport. Sieving of sodium can be used as a rough measure for aquaporin-mediated water transport. Icodextrin contains glucose polymers, inducing ultrafiltration by colloid osmosis. Therefore, aquaporins play a minor role in ultrafiltration, which is confirmed by the absence of sodium sieving. Icodextrin is very suitable for the daytime dwell in children on a nightly intermittent peritoneal dialysi

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Lilia, Mazari, and Abdessemed Djamal. "Impact of the Precoagulation Performance of the Ultrafiltration Process in the Tertiary Treatment for Recycling of Urban Sewage." Current Environmental Management 6, no. 3 (2020): 188–95. http://dx.doi.org/10.2174/2212717806666190719102835.

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Background: Ultrafiltration membrane processes have become an established technology in the treatment and reuse of secondary effluents. Nevertheless, membrane fouling arises as a major obstacle in the efficient operation of these systems. Aim/Objective: This study evaluates the factors affecting pretreatment conditions for combination ultrafiltration membrane processes for reuse of secondary effluent from the sewage treatment plant. The objective of this work is to study the precoagulation effect on the removal of organic matter from secondary effluent from the wastewater treatment plant Regha

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Li, Dekun, Zhi Li, Fei Peng, et al. "Ultrafiltration Process Yield Study on Aqueous Solution of Total Ginsenosides." Natural Product Communications 17, no. 5 (2022): 1934578X2210941. http://dx.doi.org/10.1177/1934578x221094110.

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Ultrafiltration membrane separation is a technology used to separate large and small molecules in solution by using the principle of membrane screening. This technology can retain the effective components of traditional Chinese medicine extract, remove macromolecular impurities and endotoxin, and meet the requirements of high quality, high efficiency, and low pollution in the modern production of traditional Chinese medicine. The study investigated the impact of 100 KDa molecular weight prepared from different ultrafiltration membrane on the ginsenosides ingredient composition of ginsenosides

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Kuhn, Ryan C., and Kevin H. Oshima. "Hollow-fiber ultrafiltration ofCryptosporidium parvumoocysts from a wide variety of 10-L surface water samples." Canadian Journal of Microbiology 48, no. 6 (2002): 542–49. http://dx.doi.org/10.1139/w02-049.

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An optimized hollow-fiber ultrafiltration system (50 000 MWCO) was developed to concentrate Cryptosporidium oocysts from 10-L samples of environmental water. Seeded experiments were conducted using a number of surface-water samples from the southwestern U.S.A. and source water from four water districts with histories of poor oocyst recovery. Ultrafiltration produced a mean recovery of 47.9% from 19 water samples (55.3% from 39 individual tests). We also compared oocyst recoveries using the hollow-fiber ultrafiltration system with those using the Envirochek filter. In limited comparison tests,

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Emery, Robert W., Jan Hommerding, Ann M. Emery, Arlen R. Holter, and Goya V. Raikar. "Use of Peripheral Ultrafiltration in the Postoperative Cardiac Surgery Patient." Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery 2, no. 1 (2007): 33–35. http://dx.doi.org/10.1097/imi.0b013e31802f43c6.

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Background After cardiac surgery, most patients have development of third-space fluid retention, commonly treated with diuretics. In some patients diuretics are ineffective. In this subset, a simplified system for ultrafiltration was used for fluid extraction. Methods After obtaining permission from the institutional review board, the hospital charts of the first 30 patients having ultrafiltration were retrospectively reviewed to abstract data on fluid extraction and patient outcomes. Data are expressed as mean ± standard deviation. Results From April 2004 through January 2006, 30 patients wer

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Egan, Lindsey, Patricia A. Connolly, Deanna Fuller, et al. "Detection of Histoplasma capsulatum Antigenuria by Ultrafiltration of Samples with False-Negative Results." Clinical and Vaccine Immunology 15, no. 4 (2008): 726–28. http://dx.doi.org/10.1128/cvi.00493-07.

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ABSTRACT Patients with histoplasmosis may test falsely negative for Histoplasma capsulatum antigenuria. In some cases antigen is present at levels below the assay's detection limit, and ultrafiltration could improve sensitivity. Antigen was detected following ultrafiltration in 73.8% of falsely negative specimens versus 2% of controls. Ultrafiltration improved sensitivity with a small reduction in specificity.

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Mongero, Linda B., Eric A. Tesdahl, Alfred Stammers, and Samuel Weinstein. "The influence of ultrafiltration on red blood cell transfusion during cardiopulmonary bypass." Perfusion 34, no. 4 (2018): 303–9. http://dx.doi.org/10.1177/0267659118821026.

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Background: Ultrafiltration during cardiopulmonary bypass (CPB) reduces fluid overload and inflammatory mediators in open-heart surgery and is thought to reduce the risk of red blood cell (RBC) transfusion. We evaluated its effectiveness in reducing RBC transfusions in a large population undergoing cardiac surgery, among patients in general as well as by gender. Methods: We analyzed 40,650 propensity-matched adult cardiac surgery cases conducted over a 61-month period at 195 hospitals. We assessed the risk of intraoperative transfusion (⩾1 unit RBC) according to body surface area (BSA)-normali

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Cavallini, Nicola, Anders Wieslander, and Magnus Braide. "Substituting Citrate for Lactate in Peritoneal Dialysis Fluid Improves Ultrafiltration in Rats." Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 29, no. 1 (2009): 36–43. http://dx.doi.org/10.1177/089686080902900106.

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Background Exposure to peritoneal dialysis (PD) fluid induces an inflammatory response in the peritoneal cavity. Blockers of complement and coagulation have improved ultrafiltration in animal models of PD. Citrate is a clinically established anticoagulant that also blocks complement activation. Objective The aim of the present study was to evaluate the effects on ultrafiltration of a gradual substitution of citrate for lactate in an experimental model of PD. Methods Fractions (0, 5, 10, and 15 mmol/L) of the 40 mmol/L lactate buffer of filter-sterilized 2.5% glucose PD fluid were replaced by c

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