Concept

Hydroxyle

Publications associées (131)

Functional, Hyperbranched Polyesters Via Baylis-Hillman Polymerization

Harm-Anton Klok, Frederik Roman Wurm, Sanhao Ji

Hyperbranched polyesters are among the most common hyperbranched polymers. One of the interesting features of hyperbranched polyesters is that they contain unreacted hydroxyl and carboxylic acid groups at the linear and terminal structural units, which can ...

2012

Photocatalytic production of O-1(2) and (OH)-O-center dot mediated by silver oxidation during the photoinactivation of Escherichia coli with TiO2

César Pulgarin, Andrzej Sienkiewicz

Ag loaded TiO2 was applied in the photocatalytic inactivation of Escherichia coil under ultraviolet (UV) and visible (Vis) light irradiations. Ag enhanced the TiO2 photodisinfecting effect under Vis irradiation promoting the formation of singlet oxygen and ...

Elsevier2012

Versatile Route to Synthesize Heterobifunctional Poly(ethylene glycol) of Variable Functionality for Subsequent Pegylation

Jutta Christine Wandrey, Redouan Mahou

Pegylation using heterotelechelic poly(ethylene glycol) (PEG) offers many possibilities to create high-performance molecules and materials. A versatile route is proposed to synthesize heterobifunctional PEG containing diverse combinations of azide, amine, ...

Mdpi Ag2012

Removal of the antiviral agent oseltamivir and its biological activity by oxidative processes

Urs von Gunten, Kristin Schirmer, Silvio Canonica

The antiviral agent oseltamivir acid (OA, the active metabolite of Tamiflu) may occur at high concentrations in wastewater during pandemic influenza events. To eliminate OA and its antiviral activity from wastewater, ozonation and advanced oxidation proces ...

2012

Self-Assembled Electrical Biodetector Based on Reduced Graphene Oxide

Klaus Kern, Subramanian Sundaram, Kannan Balasubramanian, Ravi Shankar Sundaram

Large-scale fabrication of graphene-based devices is an aspect of great importance for various applications including chemical and biological sensing. Toward this goal, we present here a novel chemical route for the site-specific realization of devices bas ...

2012

Influence of Doping Level on the Electrochemical Oxidation of Formic Acid on Boron Doped Diamond Electrodes

Christos Comninellis, Stéphane Fierro

The influence of the boron doping level in boron doped diamond electrodes (BDD) on the electro-generation of active intermediates (hydroxyl radicals and hydrogen peroxide) involved in the oxidation of organic compounds has been studied. It is shown that th ...

2011

Effect of Dissolved Organic Matter on the Transformation of Contaminants Induced by Excited Triplet States and the Hydroxyl Radical

Urs von Gunten, Silvio Canonica

Dissolved organic matter (DOM) has recently been shown to reduce the transformation rate of various aqueous organic contaminants submitted to oxidation by excited triplet states, apparently by inhibiting the transformation of oxidation intermediates. The m ...

2011

Exploring the Scope of the Baylis-Hillman Reaction for the Synthesis of Side-Chain Functional Polyesters

Harm-Anton Klok, Sanhao Ji

The BaylisHillman reaction provides a protective-group-free strategy to heterobifunctional polyesters, which can be further modified via various post-polymerization modification reactions. This contribution explores the BaylisHillman polymerization of 1,3- ...

2011

Copper-Catalyzed Tyrosine Nitration

Hubert Girault, Liang Qiao, Yu Lu

Tyrosine nitration, often observed during neurodegenerative disorders under nitrative stress, is usually considered to be induced chemically either by nitric oxide and oxygen forming nitrogen dioxide or by the decomposition of peroxynitrite. It can also be ...

2011

Periplasmic Binding Proteins as Optical Modulators of Single-Walled Carbon Nanotube Fluorescence: Amplifying a Nanoscale Actuator

Ardemis Anoush Boghossian

The authors use glucose-binding protein (GBP) to mech. actuate a fluorescent single-walled carbon nanotube (SWNT), resulting in reversible exciton quenching in response to glucose. The GBP is covalently conjugated with carboxylated poly(vinyl alc.)-wrapped ...

2011

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