keyword
MENU ▼
Read by QxMD icon Read
search

electrolyte and acid-base

keyword
https://www.readbyqxmd.com/read/28933805/perioperative-administration-of-buffered-versus-non-buffered-crystalloid-intravenous-fluid-to-improve-outcomes-following-adult-surgical-procedures
#1
REVIEW
Sohail Bampoe, Peter M Odor, Ahilanandan Dushianthan, Elliott Bennett-Guerrero, Suzie Cro, Tong J Gan, Michael Pw Grocott, Michael Fm James, Michael G Mythen, Catherine Mn O'Malley, Anthony M Roche, Kathy Rowan, Edward Burdett
BACKGROUND: Perioperative fluid strategies influence clinical outcomes following major surgery. Many intravenous fluid preparations are based on simple solutions, such as normal saline, that feature an electrolyte composition that differs from that of physiological plasma. Buffered fluids have a theoretical advantage of containing a substrate that acts to maintain the body's acid-base status - typically a bicarbonate or a bicarbonate precursor such as maleate, gluconate, lactate, or acetate...
September 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28933496/amphoteric-water-as-acid-and-base-for-protic-ionic-liquids-and-their-electrochemical-activity-when-used-as-fuel-cell-electrolytes
#2
Muhammed Shah Miran, Tomohiro Yasuda, Ryoichi Tatara, Md Abu Bin Hasan Susan, Masayoshi Watanabe
Amphoteric water was mixed with equimolar amounts of a super-strong acid, trifluoromethanesulfonic acid (TfOH), and a super-strong base, 1,8-diazabicyclo[5.4.0]-7-undecene (DBU). Bulk physicochemical and electrochemical properties of the mixtures were compared with those of the best ever reported protic ionic liquid (PIL), diethylmethylammonium trifluoromethanesulfonate ([dema][TfO]), which has excellent physicochemical properties as a fuel cell electrolyte. The acidic mixture ([H3O][TfO]) behaved as a protic ionic liquid, while the basic mixture ([DBU]OH) showed incomplete proton transfer...
September 21, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28914359/changes-in-acid-base-and-ion-balance-during-exercise-in-normoxia-and-normobaric-hypoxia
#3
Olaf Lühker, Marc Moritz Berger, Alexander Pohlmann, Lorenz Hotz, Tilmann Gruhlke, Marcel Hochreiter
PURPOSE: Both exercise and hypoxia cause complex changes in acid-base homeostasis. The aim of the present study was to investigate whether during intense physical exercise in normoxia and hypoxia, the modified physicochemical approach offers a better understanding of the changes in acid-base homeostasis than the traditional Henderson-Hasselbalch approach. METHODS: In this prospective, randomized, crossover trial, 19 healthy males completed an exercise test until voluntary fatigue on a bicycle ergometer on two different study days, once during normoxia and once during normobaric hypoxia (12% oxygen, equivalent to an altitude of 4500 m)...
September 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28893316/intraosseous-blood-samples-for-point-of-care-analysis-agreement-between-intraosseous-and-arterial-analyses
#4
Milla Jousi, Simo Saikko, Jouni Nurmi
BACKGROUND: Point-of-care (POC) testing is highly useful when treating critically ill patients. In case of difficult vascular access, the intraosseous (IO) route is commonly used, and blood is aspirated to confirm the correct position of the IO-needle. Thus, IO blood samples could be easily accessed for POC analyses in emergency situations. The aim of this study was to determine whether IO values agree sufficiently with arterial values to be used for clinical decision making. METHODS: Two samples of IO blood were drawn from 31 healthy volunteers and compared with arterial samples...
September 11, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28892718/insight-into-the-effects-of-modifying-chromophores-on-the-performance-of-quinoline-based-dye-sensitized-solar-cells
#5
Mao Mao, Jian-Bo Wang, Xiu-Lin Liu, Guo-Hua Wu, Xia-Qin Fang, Qin-Hua Song
A series of organic dyes based on quinoline as an electron-deficient π-linker, were designed and synthesized for dye sensitized solar cells (DSSC) application. These push-pull conjugated dyes, sharing same anchoring group with distinctive electron-rich donating groups such as N,N-diethyl (DEA-Q), 3,6-dimethoxy carbazole (CBZ-Q), bis(4-butoxyphenyl)amine (BPA-Q), were synthesized by Riley oxidation of CH3 followed by Knoevenagel condensation of the corresponding aldehyde precursors 2a-c with cyanoacrylic acid...
September 4, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28888605/effects-of-profound-acidemia-on-the-dynamic-glucose-and-insulin-response-and-plasma-potassium-and-phosphorus-concentrations-during-an-intravenous-glucose-tolerance-test-in-neonatal-calves
#6
F M Trefz, I Lorenz, P D Constable
Acidemia and electrolyte imbalances such as hyperkalemia are common in neonatal calves with diarrhea. Acidemia negatively affects the cellular response to insulin and may therefore result in deranged glucose, potassium, and phosphorus homeostasis. The primary aim of this study was to compare indices that characterize the dynamic glucose and insulin response between acidemic and nonacidemic neonatal diarrheic calves and a healthy control group during an intravenous glucose tolerance test (IVGTT) that consisted of i...
September 6, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28883678/mobile-clinical-decision-support-system-for-acid-base-balance-diagnosis-and-treatment-recommendation
#7
Mensur Mandzuka, Edin Begic, Dusanka Boskovic, Zijo Begic, Izet Masic
INTRODUCTION: This paper presents mobile application implementing a decision support system for acid-base disorder diagnosis and treatment recommendation. MATERIAL AND METHODS: The application was developed using the official integrated development environment for the Android platform (to maximize availability and minimize investments in specialized hardware) called Android Studio. RESULTS: The application identifies disorder, based on the blood gas analysis, evaluates whether the disorder has been compensated, and based on additional input related to electrolyte imbalance, provides recommendations for treatment...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28869339/anodic-dissolution-of-al-current-collectors-in-unconventional-solvents-for-high-voltage-electrochemical-double-layer-capacitors
#8
Jakob Krummacher, Lars Henning Hess, Andrea Balducci
This study investigated the anodic dissolution of Al current collectors in unconventional electrolytes for high voltage electrochemical double layer capacitors (EDLC) containing adiponitrile (ADN), 3-cyanopropionic acid methyl ester (CPAME), 2-methyl-glutaronitrile (2-MGN) as solvent, and tetraethylammonium tetrafluroroborate (Et4NBF4) and tetraethylammonium bis(trifluoromethanesulfonyl)imide (Et4NTFSI) as conductive salts. In order to have a comparison with the state-of-the-art electrolytes, the same salts were also used in combination with acetonitrile (ACN)...
September 4, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28867390/capillary-moving-boundary-isotachophoresis-with-electrospray-ionization-mass-spectrometric-detection-and-hydrogen-ion-used-as-essential-terminator-methodology-for-sensitive-analysis-of-hydroxyderivatives-of-s-triazine-herbicides-in-waters
#9
Zdena Malá, Petr Gebauer
Capillary isotachophoresis (ITP) is an electrophoretic technique offering high sensitivity due to permanent stacking of the migrating analytes. Its combination with electrospray-ionization mass-spectrometric (ESI-MS) detection is limited by the narrow spectrum of ESI-compatible components but can be compensated by experienced system architecture. This work describes a methodology for sensitive analysis of hydroxyderivatives of s-triazine herbicides, based on implementation of the concepts of moving-boundary isotachophoresis and of H(+) as essential terminating component into cationic ITP with ESI-MS detection...
August 30, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28864823/rechargeable-aqueous-zinc-manganese-dioxide-batteries-with-high-energy-and-power-densities
#10
Ning Zhang, Fangyi Cheng, Junxiang Liu, Liubin Wang, Xinghui Long, Xiaosong Liu, Fujun Li, Jun Chen
Although alkaline zinc-manganese dioxide batteries have dominated the primary battery applications, it is challenging to make them rechargeable. Here we report a high-performance rechargeable zinc-manganese dioxide system with an aqueous mild-acidic zinc triflate electrolyte. We demonstrate that the tunnel structured manganese dioxide polymorphs undergo a phase transition to layered zinc-buserite on first discharging, thus allowing subsequent intercalation of zinc cations in the latter structure. Based on this electrode mechanism, we formulate an aqueous zinc/manganese triflate electrolyte that enables the formation of a protective porous manganese oxide layer...
September 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/28858373/electrolyte-acid-base-and-hemoglobin-oxygen-affinity-alterations-following-irradiation-and-storage-of-canine-packed-red-blood-cells
#11
Saya A Press, Edward S Cooper, Jason W Stull
BACKGROUND: Irradiation of RBC before transfusion is required to prevent transfusion-associated graft-versus-host disease for human patients undergoing hematopoietic stem cell transplantation. Additional applications for irradiated blood may exist in oncologic surgery. The effect of irradiation on canine packed RBC (pRBC) is unknown. OBJECTIVES: The aim of this study was to explore and characterize the in vitro electrolyte, acid-base, and oxygen-carrying capacity changes to pRBC immediately following irradiation and during storage...
August 31, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28854743/examining-the-effect-of-dietary-electrolyte-balance-energy-source-and-length-of-feeding-of-nitrogen-free-diets-on-ileal-endogenous-amino-acid-losses-in-broilers
#12
S A Adedokun, A J Pescatore, M J Ford, J P Jacob, A Helmbrecht
The effect of dietary electrolyte balance (DEB), energy source (ES), and length of feeding of nitrogen-free diet (NFD) on ileal endogenous amino acid (EAA) loss in mg/kg dry matter intake (DMI) was evaluated in broiler chickens. In Experiment 1, 720 chickens consisting of 15 replicate cages with 6 chickens/replicate were used. Treatments were arranged in a 2 × 2 × 2 factorial and consisted of 4 NFD with 2 levels (low or high) of DEB and 2 ES [corn starch (CS) or dextrose (DX)], and 2 sampling time-points (diets were fed for either 72 h (d 16 to 19) or 120 h (d 16 to 21)...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28853540/size-controllable-gold-nanopores-with-high-sers-activity
#13
Hai-Ling Liu, Jiao Cao, Sumaira Hanif, Chun-Ge Yuan, Jie Pang, Rastislav Levicky, Xing-Hua Xia, Kang Wang
Nanopore structures have been successfully employed in next generation DNA sequencing. For more complicated protein which normally contains 20 different amino acids, identifying the fluctuation of ionic current caused by different amino acids appears inadequate for protein sequencing. Therefore, it is highly desirable to develop size-controllable nanopores with optical activity that can provide additional structural information. Herein, we discovered the novel nanopore properties of the self-assembled ultramicroelectrodes originally developed by Bard and coworkers...
August 30, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28841515/comparison-of-phthalic-acid-removal-from-aqueous-solution-by-electrochemical-methods-optimization-kinetic-and-sludge-study
#14
Vishal Kumar Sandhwar, Basheshwar Prasad
In this work, comparative study between electrochemical processes such as electrocoagulation (EC), peroxi-coagulation (PC) and peroxi-electrocoagulation (PEC) was performed for the removal of phthalic acid (PA) and chemical oxygen demand (COD) from aqueous medium. Initially, acid treatment was studied at various pH (1-3) and temperature (10-55 °C). Subsequently, the supernatant was re-treated by electrochemical processes such as EC, PC and PEC separately. Independent parameters viz. pH, current density (CD), electrolyte concentration (m), electrode gap (g), H2O2 concentration and electrolysis time (t) were optimized by Central Composite Design (CCD) for these electrochemical processes...
August 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28835067/-brief-disserting-on-the-balance-of-internal-environment-in-burn-disease
#15
C M Han, X G Wang
The essential internal environment in human being involves water, electrolyte, and acid-base balance, which is the basis of balance and stability of internal environment in other systems. For burn patients, the balance of internal environment, referring to metabolism, nutrition, inflammatory response, and immunoreaction, is one of the most important aspects in burn disease. This paper aims to briefly elaborate the balance of internal environment after burn, with the purpose to promote the basic and clinical research in this field...
August 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28833697/effect-of-intravenously-administered-crystalloid-solutions-on-acid-base-balance-in-domestic-animals
#16
REVIEW
W Muir
Intravenous fluid therapy can alter plasma acid-base balance. The Stewart approach to acid-base balance is uniquely suited to identify and quantify the effects of the cationic and anionic constituents of crystalloid solutions on plasma pH. The plasma strong ion difference (SID) and weak acid concentrations are similar to those of the administered fluid, more so at higher administration rates and with larger volumes. A crystalloid's in vivo effects on plasma pH are described by 3 general rules: SID > [HCO3-] increases plasma pH (alkalosis); SID < [HCO3-] decreases plasma pH (alkalosis); and SID = [HCO3-] yields no change in plasma pH...
September 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28832508/highly-efficient-and-stable-organic-solar-cells-via-interface-engineering-with-a-nanostructured-itr-go-pfn-bilayer-cathode-interlayer
#17
Ding Zheng, Lili Zhao, Pu Fan, Ran Ji, Junsheng Yu
An innovative bilayer cathode interlayer (CIL) with a nanostructure consisting of in situ thermal reduced graphene oxide (ITR-GO) and poly[(9,9-bis(3'-(N,N-dimethylamion)propyl)-2,7-fluorene)-alt-2,7-(9,9-dioctyl) fluorene] (PFN) has been fabricated for inverted organic solar cells (OSCs). An approach to prepare a CIL of high electronic quality by using ITR-GO as a template to modulate the morphology of the interface between the active layer and electrode and to further reduce the work function of the electrode has also been realized...
August 23, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28827663/chilling-temperature-remodels-phospholipidome-of-zea-mays-seeds-during-imbibition
#18
Agathe Noblet, Juliette Leymarie, Christophe Bailly
Global warming is a major agricultural issue in the Northern hemisphere where higher temperatures are expected to be associated with restricted water availability. In Europe, for maize, earlier and further northward sowings are forecasted in order to avoid water deficit periods in the crop life cycle. However these conditions may compromise seed germination and stand establishment since they will take place at cold temperatures. It is urgent to better understand the molecular bases of response of germinating maize seeds to cold in order to design genotypes adapted to these novel agricultural practices...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28820531/phytic-acid-assisted-electrochemically-synthesized-three-dimensional-o-p-functionalized-graphene-monoliths-with-high-capacitive-performance
#19
Han-Yu Li, Lang Liu, Zhi-Wei Zhang, Shu-Shen Wang, Yao Yu, Lin Liu, Yue Wu
Three-dimensional functionalized graphene monoliths (3DFGMs) have attracted intensive attention as energy storage materials due to their unique interconnected porous structure, good electrical conductivity, excellent mechanical strength, and pseudocapacitive characteristic. Herein, we report a facile, green and low-cost strategy through a simple, one-step electrochemical process in a phytic acid solution to fabricate a 3DFGM. The 3D porous structure and functionalization of graphene can be obtained simultaneously...
August 31, 2017: Nanoscale
https://www.readbyqxmd.com/read/28814497/extracellular-acid-base-balance-and-ion-transport-between-body-fluid-compartments
#20
REVIEW
Julian L Seifter, Hsin-Yun Chang
Clinical assessment of acid-base disorders depends on measurements made in the blood, part of the extracellular compartment. Yet much of the metabolic importance of these disorders concerns intracellular events. Intracellular and interstitial compartment acid-base balance is complex and heterogeneous. This review considers the determinants of the extracellular fluid pH related to the ion transport processes at the interface of cells and the interstitial fluid, and between epithelial cells lining the transcellular contents of the gastrointestinal and urinary tracts that open to the external environment...
September 2017: Physiology
keyword
keyword
94125
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"