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citrate trisodium

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https://www.readbyqxmd.com/read/28098465/rejection-of-commonly-used-electrolyte-in-asymmetric-flow-field-flow-fractionation-effects-of-membrane-molecular-weight-cut-off-size-fluid-dynamics-and-valence-of-electrolytes
#1
Thilak K Mudalige, Haiou Qu, Sean W Linder
Asymmetric flow field flow fractionation (AF4) is an efficient size based separation technique for the characterization of submicron size particulates. In AF4, membranes having various molecular weight cut-off sizes are used as a barrier to retain particles while allowing carrier fluid containing electrolytes to permeate. Here, we hypothesized that electrolyte rejection by the barrier membrane lead to the accumulation of the electrolytes in the channel during operation. Electrolyte accumulation can cause various adverse effects which can lead to membrane fouling...
January 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28081368/smart-metal-organic-framework-coatings-triggered-anti-biofilm-compound-release
#2
Birgit Claes, Tom Boudewijns, Laurens Muchez, Geert Hooyberghs, Erik V Van der Eycken, Jozef Vanderleyden, Hans P Steenackers, Dirk E De Vos
Metal-organic frameworks (MOFs) have a large potential for delivery of active molecules. Here, a MOF coating is investigated as a smart host matrix for triggered release of anti-biofilm compounds. Besides a coating consisting of the regular Fe-terephthalate MIL-88B(Fe), a new hydrophobic MIL-88B(Fe) coating is synthesized in hydrothermal conditions using palmitic acid as a lattice terminating group. These porous materials are used as a host matrix for the anti-biofilm compound 5-(4-chlorophenyl)-N-(2-isobutyl)-2-aminoimidazole, which has a specific biofilm inhibiting effect at concentrations at which no activity against planktonic cells is detected...
January 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28035151/effect-of-concentration-homogenization-and-stabilizing-salts-on-heat-stability-and-rheological-properties-of-cow-skim-milk-ultrafiltered-retentate
#3
Ganga Sahay Meena, Ashish Kumar Singh, Sanket Borad, Narender Raju Panjagari
Ultrafiltration (UF) of skimmed milk altered the composition of UF retentate and decreased the heat stability. Heat stability further reduced upon its subsequent homogenization or diafiltration. Poor heat stability of UF retentate restricts its processing at elevated temperatures. Therefore, this study was aimed to investigate the effect of protein concentration, homogenization and addition of stabilizing salts on the heat stability and rheological properties of UF retentates. Changes in the heat stability of fivefold homogenized UF retentate (5× HUFR) was studied in the pH range of 6...
November 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28004566/antifouling-manganese-oxide-nanoparticles-synthesis-characterization-and-applications-for-enhanced-mr-imaging-of-tumors
#4
Peng Wang, Jia Yang, Benqing Zhou, Yong Hu, Lingxi Xing, Fanli Xu, Mingwu Shen, Guixiang Zhang, Xiangyang Shi
Antifouling manganese oxide (Mn3O4) nanoparticles (NPs) were synthesized by solvothermal decomposition of tris(2,4-pentanedionato) manganese(III) in the presence of trisodium citrate, followed by surface modification with polyethylene glycol and l-cysteine. The as-prepared nanoparticles have a uniform size distribution, good colloidal stability and good cytocompatibility. The modification of l-cysteine rendered the particles with much longer blood circulation time (half-decay time of 28.4 h) than those without l-cysteine modification (18...
December 27, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27979117/structure-of-starch-aerogel-as-affected-by-crosslinking-and-feasibility-assessment-of-the-aerogel-for-an-anti-fungal-volatile-release
#5
Negar Abhari, Ashkan Madadlou, Ali Dini
Starch suspensions were crosslinked with trisodium citrate for either 0 or 17h, gelled and then freeze-dried to corresponding aerogels. The aerogel from the 17h-crosslinked suspension was loaded with the antifungal compound, trans-2-hexenal, and coated with the surfactant, sorbitan monooleate. Aerogel hardness was increased by the citrate-mediated crosslinking, whereas its adhesiveness decreased. Starch gelation decreased the crystallinity index (CrI) from 59% to ≈23%; however, the pre-gelation crosslinking resulted in a higher CrI value (i...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27914092/synthesis-characterization-and-study-of-in-vitro-cytotoxicity-of-zno-fe3o4-magnetic-composite-nanoparticles-in-human-breast-cancer-cell-line-mda-mb-231-and-mouse-fibroblast-nih-3t3
#6
Gunjan Bisht, Sagar Rayamajhi, Biplab Kc, Siddhi Nath Paudel, Deepak Karna, Bhupal G Shrestha
Novel magnetic composite nanoparticles (MCPs) were successfully synthesized by ex situ conjugation of synthesized ZnO nanoparticles (ZnO NPs) and Fe3O4 NPs using trisodium citrate as linker with an aim to retain key properties of both NPs viz. inherent selectivity towards cancerous cell and superparamagnetic nature, respectively, on a single system. Successful characterization of synthesized nanoparticles was done by XRD, TEM, FTIR, and VSM analyses. VSM analysis showed similar magnetic profile of thus obtained MCPs as that of naked Fe3O4 NPs with reduction in saturation magnetization to 16...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27859427/citrate-buffered-dialysis-solution-citrasate-allows-avoidance-of-anticoagulation-during-intermittent-hemodiafiltration-at-the-cost-of-decreased-performance-and-systemic-biocompatibility
#7
Pavlina Richtrova, Jan Mares, Lukas Kielberger, Ladislav Trefil, Jaromir Eiselt, Tomas Reischig
Reportedly, citrate-based dialysis solution enables heparin dose tapering or even complete exclusion, particularly in postdilution hemodiafiltration (HDF). The aim of the study was to verify this strategy in predilution setting and to assess its short-term safety, efficacy, and biocompatibility. Ten regular hemodialysis patients were assigned to predilution HDF on acetate- and citrate-based dialysis solutions (0.8 mmol/l trisodium citrate) at random order. Acetate HDF was performed using routine dose of heparin while citrate HDF was heparin free...
November 10, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27709880/tempo-oxidized-nanocellulose-fiber-directed-stable-aqueous-suspension-of-plasmonic-flower-like-silver-nanoconstruct-for-ultra-trace-detection-of-analytes
#8
Kallayi Nabeela, Reny Thankam Thomas, Jyothi B Nair, Kaustabh Kumar Maiti, Krishna Gopa Kumar Warrier, Saju Pillai
Synthesis of shape-tuned silver (Ag) nanostructures with high plasmon characteristics has drawn significant importance in in-vitro diagnostic applications. Herein, we report a simple aqueous synthetic route using TEMPO-oxidized nanocellulose fibers (T-NCF) and trisodium citrate (TSC) that results in anisotropically grown flower-like Ag nanoconstruct (AgNF). A detailed investigation of the concentration and sequence of the addition of reactants on the formation of these anisotropic Ag structure is presented...
October 6, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27689722/microfluidic-synthesis-of-ag-cu2o-core-shell-nanoparticles-with-enhanced-photocatalytic-activity
#9
Sha Tao, Mei Yang, Huihui Chen, Mingyue Ren, Guangwen Chen
A microfluidic-based method for the continuous synthesis of Ag@Cu2O core-shell nanoparticles (NPs) has been developed. It only took 32s to obtain Ag@Cu2O core-shell NPs, indicating a high efficiency of this microfluidic-based method. Triangular Ag nanoprisms were employed as the cores for the overgrowth of Cu2O through the reduction of Cu(OH)4(2-) with ascorbic acid. The as-synthesized samples were characterized by XRD, TEM, SEM, HAADF-STEM, EDX, HRTEM, UV-vis spectra and N2 adsorption-desorption. The characterization results revealed that the as-synthesized Ag@Cu2O core-shell NPs exhibited a well-defined core-shell nanostructure with a polycrystalline shell, which was composed of numbers of Cu2O domains epitaxially growing on the triangular Ag nanoprism...
January 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27670267/the-clock-trial-a-double-blinded-randomized-controlled-trial-trisodium-citrate-30-and-minocycline-3-mg-ml-plus-edta-30-mg-ml-are-effective-and-safe-for-catheter-patency-maintenance-among-ckd-5d-patients-on-hemodialysis
#10
Marcus V S João Luiz, Cristoforo Scavone, Carmen Tzanno
Introduction Poor blood flow rate (PF) is highly prevalent among CKD 5D patients with long-term central venous catheters. Heparin catheter lock solutions are commonly used to maintain catheter patency, however the incidence of PF remains high. The purpose of the CLOCK Trial was to evaluate two catheter lock solutions on reduction of PF incidence. Methods Seventy-five CKD 5D patients on high-efficiency hemodialysis at the Integrated Centre of Nephrology (Guarulhos, Brazil) were randomized 1:1:1 to receive a lock solution combining minocycline 3 mg/mL with the anticoagulant/chelation agent EDTA 30 mg/mL (M-EDTA) or heparin 1000 IU/mL (H) or trisodium citrate 30% (TSC) vs...
September 26, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27623980/relevance-of-non-nutritional-calories-in-mechanically-ventilated-critically-ill-patients
#11
E Bousie, D van Blokland, H J W Lammers, A R H van Zanten
BACKGROUND/OBJECTIVES: Overfeeding in critically ill patients is associated with many complications. Propofol, dextrose infusion and citrate dialysis provide non-nutritional calories (NNCs), potentially causing overfeeding. The relevance of NNCs for total caloric intake has not been systematically studied. SUBJECTS/METHODS: We retrospectively studied adult mechanically ventilated intensive care unit (ICU) patients receiving enteral nutrition with or without supplemental parenteral nutrition...
December 2016: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27600608/taste-masking-of-azithromycin-by-resin-complex-and-sustained-release-through-interpenetrating-polymer-network-with-functionalized-biopolymers
#12
A Michael Rajesh, Kiritkumar Mangaldas Popat
OBJECTIVE: The objective was to evaluate taste masking of azithromycin (AZI) by ion exchange resins (IERs) and the formation of covalent semi interpenetrating polymer network (IPN) beads using chitosan (CS) and sodium carboxylated agarose (SCAG) for sustained release of drug. METHODS: Methacrylic acid (MAA)-based IERs were prepared by suspension polymerization method. Drug release complexes (DRCs) were prepared by different drug:resin ratios i.e. 1:1, 1:2 and 1:4...
September 7, 2016: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/27594526/cyano-bridged-trimetallic-coordination-polymer-nanoparticles-and-their-thermal-decomposition-into-nanoporous-spinel-ferromagnetic-oxides
#13
Mohamed B Zakaria, Md Shahriar A Hossain, Muhammad J A Shiddiky, Mohammed Shahabuddin, Ekrem Yanmaz, Jung Ho Kim, Alexei A Belik, Yusuke Ide, Ming Hu, Satoshi Tominaka, Yusuke Yamauchi
The synthesis of a novel family of cyano-bridged trimetallic coordination polymers (CPs) with various compositions and shapes has been reported by changing the compositional ratios of Fe, Co, and Ni species in the reaction system. In order to efficiently control the nucleation rate and the crystal growth, trisodium citrate dihydrate plays an important role as a chelating agent. After the obtained cyano-bridged trimetallic CPs undergo thermal treatment in air at three different temperatures (250, 350, and 450 °C), nanoporous spinel metal oxides are successfully obtained...
October 10, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27592325/freedom-solo-associated-thrombocytopaenia-is-valve-dependent-and-not-due-to-in-vitro-pseudothrombocytopaenia
#14
Olaf Stanger, Brigitta Gahl, Michael Grabherr, Richard Krausler, Sarah Longnus, Andreas Meinitzer, Janne Cadamuro
BACKGROUND: Use of the Freedom SOLO (FS) stentless aortic bioprosthesis is limited by a unique and as yet unexplained severe decrease in postoperative platelet count in the absence of FS-related excess bleeding or thromboembolism. We investigated whether anticoagulant-associated pseudothrombocytopaenia could explain this complication. METHODS: Thirty consecutive patients (mean age 75.4±7.7 years, 11 [36.7%] female) underwent elective aortic valve replacement (AVR) with either the stented bovine Mitroflow (MF, n=18) or the stentless bovine FS (n=12) aortic valve bioprostheses...
August 16, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27573387/comparative-effectiveness-of-30%C3%A2-trisodium-citrate-and-heparin-lock-solution-in-preventing-infection-and-dysfunction-of-hemodialysis-catheters-a-randomized-controlled-trial-citrim-trial
#15
Franklin Correa Barcellos, Bruno Pereira Nunes, Luciana Jorge Valle, Thiago Lopes, Bianca Orlando, Cintia Scherer, Marcia Nunes, Gabriela Araújo Duarte, Maristela Böhlke
BACKGROUND: Central venous catheters (CVC) are the only option when hemodialysis is needed for patients without definitive vascular access. However, CVC is associated with complications, such as infection, thrombosis, and dysfunction, leading to higher mortality and expenditures. The aim of this study was to compare the effectiveness of 30 % trisodium citrate (TSC30 %) with heparin as CVC lock solutions in preventing catheter-related bloodstream infections (CRBSI) and dysfunction in hemodialysis patients...
August 29, 2016: Infection
https://www.readbyqxmd.com/read/27507442/textural-and-cargo-release-attributes-of-trisodium-citrate-cross-linked-starch-hydrogel
#16
Negar Abhari, Ashkan Madadlou, Ali Dini, Ozra Hosseini Naveh
An alkaline starch suspension was charged with citric acid and incubated for different durations (0, 8.5 or 17h). The suspension was then supplemented with caffeine and gelatinized to fabricate hydrogels which were subsequently stored for varying periods (0, 24 or 48h). Charging of the well-dissolved alkaline starch suspension with citric acid decreased at first both the flow index and consistency coefficient (K); however, starch cross-linking over time by the generated trisodium citrate increased the K value...
January 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27476331/polyvinyl-polypyrrolidone-attenuates-genotoxicity-of-silver-nanoparticles-synthesized-via-green-route-tested-in-lathyrus-sativus-l-root-bioassay
#17
Kamal K Panda, V Mohan M Achary, Ganngam Phaomie, Hrushi K Sahu, Narasimham L Parinandi, Brahma B Panda
The silver nanoparticles (AgNPs) were synthesized extracellularly from silver nitrate (AgNO3) using kernel extract from ripe mango Mengifera indica L. under four different reaction conditions of the synthesis media such as the (i) absence of the reducing agent, trisodium citrate (AgNPI), (ii) presence of the reducing agent (AgNPII), (iii) presence of the cleansing agent, polyvinyl polypyrrolidone, PVPP (AgNPIII), and (iv) presence of the capping agent, polyvinyl pyrrolidone, PVP (AgNPIV). The synthesis of the AgNPs was monitored by UV-vis spectrophotometry...
August 2016: Mutation Research. Genetic Toxicology and Environmental Mutagenesis
https://www.readbyqxmd.com/read/27474552/chitosan-based-polymer-matrix-with-silver-nanoparticles-decorated-multiwalled-carbon-nanotubes-for-catalytic-reduction-of-4-nitrophenol
#18
Saad M Alshehri, Turki Almuqati, Naif Almuqati, Eida Al-Farraj, Norah Alhokbany, Tansir Ahamad
A novel catalyst for the reduction of 4-nitrophenol (4-NP) was prepared using carboxyl group-functionalized multiwalled carbon nanotubes (MWCNTs), polymer matrix, and silver nanoparticles (AgNPs). The AgNPs were prepared by the reduction of silver nitrate by trisodium citrate in the MWCNTs-polymer nanocomposite; the size of the synthesized AgNPs was found to be 3nm (average diameter). The synthesized nanocomposites were characterized using several analytical techniques. Ag@MWCNTs-polymer composite in the presence of sodium borohydride (NaBH4) in aqueous solution is an effective catalyst for the reduction of 4-NP...
October 20, 2016: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27433721/controlled-deposition-of-gold-nanoparticles-on-titania-support
#19
Dung The Nguyen, Kyo-Seon Kim
In our research, the commercial TiO2 (Degussa P25) was modified with gold nanoparticles (Au NPs) by reduction reaction with trisodium citrate. A remarkable influence of pH on particle size, size distribution and dispersion of Au on TiO2 support was observed. The size of Au NPs on TiO2 surface decreased with increase in the pH of the precursor solution. The increase of pH involved a transformation of [AuCl4]- complexes to [Au(OH)xCl(4-x)]- complexes which could induce strong Au-TiO2 interactions, resulted in uniform dispersion of Au NPs...
February 2016: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/27411455/determinants-of-calcium-infusion-rate-during-continuous-veno-venous-hemofiltration-with-regional-citrate-anticoagulation-in-critically-ill-patients-with-acute-kidney-injury
#20
De-Lin Liu, Li-Feng Huang, Wen-Liang Ma, Qi Ding, Yue Han, Yue Zheng, Wen-Xiong Li
BACKGROUND: It is unclear that how to decide the calcium infusion rate during continuous veno-venous hemofiltration (CVVH) with regional citrate anticoagulation (RCA). This study aimed to assess the determinants of calcium infusion rate during CVVH with RCA in critically ill patients with acute kidney injury (AKI). METHODS: A total of 18 patients with AKI requiring CVVH were prospectively analyzed. Postdilution CVVH was performed with a fixed blood flow rate of 150 ml/min and a replacement fluid flow rate of 2000 ml/h for each new circuit...
July 20, 2016: Chinese Medical Journal
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