Concept

Phosphoric acids and phosphates

Publications associées (23)

Cellulose phosphorylation comparison and analysis of phosphorate position on cellulose fibers

David Lyndon Emsley, Jayasubba Reddy Yarava, Michel Bardet, Julien Bras

Chemical modifications of cellulose fibers as pretreatment for cellulose nanofibrils (CNF) production have been investigated to improve the production process and the quality of obtained cellulosic nanomaterial. In this study, phosphorylation of cellulose ...

ELSEVIER SCI LTD2020

Dissimilarities in polyphosphate accumulation between Shewanella loihica and the model bacterium Shewanella oneidensis

Julien Maillard

Polyphosphate plays an important role in the physiological adaptation of bacteria during growth and development, as well as in their response to nutritional and environmental stresses. Moreover, polyphosphate accumulation is of environmental relevance and ...

2019

Halide removal from waters by silver nanoparticles and hydrogen peroxide

Urs von Gunten

The objective of this study was to remove halides from waters by silver nanoparticles (AgNPs) and hydrogen peroxide (H2O2). The experimental parameters were optimized and the mechanism involved was also determined. The AgNP/H2O2 process proved efficacious ...

Elsevier2017

Mycobacterium tuberculosis Phosphate Uptake System Component PstA2 Is Not Required for Gene Regulation or Virulence

John McKinney, Anna De Graff Tischler

The Mycobacterium tuberculosis genome encodes two complete high-affinity Pst phosphate-specific transporters. We previously demonstrated that a membrane-spanning component of one Pst system, PstA1, was essential both for M. tuberculosis virulence and for r ...

Public Library of Science2016

P-NEXFS analysis of aerosol phosphorus delivered to the Mediterranean Sea

Athanasios Nenes, Kalliopi Violaki

Biological productivity in many ocean regions is controlled by the availability of the nutrient phosphorus. In the Mediterranean Sea, aerosol deposition is a key source of phosphorus and understanding its composition is critical for determining its potenti ...

Blackwell Publishing Ltd2014

Understanding what limits biological phosphorus removal at Uster’s wastewater treatment plant

This study aims at better understanding what limits the biological phosphate removal at Uster’s wastewater treatment plant (WWTP). Two hypotheses were proposed to explain the limited biological phosphate removal observed at Uster’s WWTP: (i) A heterogeneou ...

2014

A microfluidic approach to synthesizing high-performance microfibers with tunable anhydrous proton conductivity

Philippe Renaud, Arnaud Bertsch, Mohammad Mahdi Hasani-Sadrabadi, Fatemeh Sadat Majedi, Jules John Vandersarl

Here, we demonstrate a new approach for the synthesis of ion exchange microfibers with finely tuned anhydrous conductivity. This work presents microfluidics as a system to control the size and phosphoric acid (PA) doping level of the polybenzimidazole (PBI ...

Royal Society of Chemistry2013

Biphasic Model Describing Soybean Oil Epoxidation with H2O2 in Continuous Reactors

Albert Renken

Epoxidized soybean oil (ESBO) is produced in industry by reacting soybean oil, at 60-70 degrees C, with hydrogen peroxide in the presence of formic or acetic acid. A small amount of sulphuric or phosphoric acid is necessary to catalyze the oxidation of the ...

2012

Influence of chelating agents on the tribocorrosion of tungsten in sulphuric acid solution

Michel Declercq, Didier Bouvet, Stefano Mischler, Jelena Stojadinovic

The corrosion and tribocorrosion of tungsten in 0.01 M H2SO4, without and with the presence of lactic acid and phosphoric acid as chelating agents was studied here. ...

2011

Development and Understanding of Novel Compounds Designed as Potential MRI Contrast Agents

Hugues Jaccard

The two last decades have witnessed the appearance and the successful development of magnetic resonance imaging (MRI) contrast agents (CAs). Though MRI, which has become an essential medical diagnostic tool, can be performed without contrast agents, its ra ...

EPFL2011

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