Publication

Multiple scanning electrochemical microscopy mapping of tyrosinase in micro-contact printed fruit samples on polyvinylidene fluoride membrane

Publications associées (32)

Asymmetric Elimination Reaction on Chiral Metal Surfaces

Harald Brune, Roland Widmer, Samuel Thomas Stolz, Martina Danese, Daniele Passerone

The production of enantiopure materials and molecules is of uttermost relevance in research and industry in numerous contexts, ranging from nonlinear optics to asymmetric synthesis. In the context of the latter, dehalogenation, which is an essential reacti ...

Wiley-V C H Verlag Gmbh2021

The Solvent Effect on H2O2 Generation at Room Temperature Ionic Liquid|Water Interface

Hubert Girault

H2O2 is a versatile chemical and can be generated by the oxygen reduction reaction (ORR) in proton donor solution in molecular solvents or room temperature ionic liquids (IL). We investigated this reaction at interfaces formed by eleven hydrophobic ILs and ...

2021

Evaluation of secondary electron intensities for dopant profiling in ion implanted semiconductors: a correlative study combining SE, SIMS and ECV methods

Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Philippe Wyss, Franz-Josef Haug, Mario Joe Lehmann, Audrey Marie Isabelle Morisset

This study evaluates the secondary electron (SE) dopant contrast in scanning electron microscopy (SEM) and helium ion microscopy (HIM) on boron implanted silicon sample. Complementary techniques like secondary ion mass spectrometry and electrochemical capa ...

IOP PUBLISHING LTD2021

Imaging Catalysis: Operando Investigation of the CO2 Hydrogenation Reaction Dynamics by Means of Infrared Thermography

Emad Oveisi, Loris Giovanni Lombardo, Andreas Züttel, Kun Zhao, Robin Tobias Andreas Mutschler, Emanuele Moioli

Infrared thermography is a powerful tool to investigate the dynamic evolution of temperature in chemical reactions. The CO2 hydrogenation reaction is an ideal model reaction to assess the presented technique due to its high exothermicity. Various dynamic e ...

AMER CHEMICAL SOC2020

Modeling, predicting and mining metabolism at atom-level resolution

Jasmin Maria Hafner

Living organisms can catalyze many thousands of biochemical reactions that they use to convert energy and matter, which provides them with the essentials for life. The sum of these chemical reactions happening in an organism is called metabo-lism. Understa ...

EPFL2020

In-core dosimetry for the validation of neutron spectra in the CROCUS reactor

Pavel Frajtag, Andreas Pautz, Vincent Pierre Lamirand, Axel Guy Marie Laureau, Yifeng Jiang

The present article describes the preliminary validation study of simulated in-core and reflector n eutron spectra in preparation of oncoming experimental programs in the zero-power reactor CROCUS at EPFL. For this purpose, a set of activation foils were i ...

E D P SCIENCES2020

Montmorillonite clay-modified disposable ink-jet-printed graphene electrode as a sensitive voltammetric sensor for the determination of cadmium(II) and lead(II)

Hubert Girault, Andreas Stephan Lesch, Victor Costa Bassetto, Milica Jovic, Léopoldine Guenang Sonfack

This work describes a new sensitive sensor for the simultaneous electrochemical determination by square wave anodic stripping voltammetry of Cd2+ and Pb2+ ions in aqueous solution, based on a disposable ink-jet-printed graphene electrode (IPGE) modifed by ...

2020

Oxygen evolution reaction: Bifunctional mechanism breaking the linear scaling relationship

Alfredo Pasquarello, Patrick Gono

The bifunctional mechanism for the oxygen evolution reaction (OER) involving two distinct reaction sites is studied through the computational hydrogen electrode method for a set of catalyst materials including rutile TiO2(110), anatase TiO2(101), SnO2(110) ...

2020

Algorithms and flowchart for the design of synthetic biochemical networks

Homa Mohammadi Peyhani

New drugs are needed to assure effective therapies for previously untreated diseases, emerging diseases, and personalized medicine, but the process of drug development is complex, costly, and time-consuming. This is especially problematic considering that ...

EPFL2020

Online Aerosol Chemical Characterization by Extractive Electrospray Ionization-Ultrahigh-Resolution Mass Spectrometry (EESI-Orbitrap)

Julia Schmale, Imad El Haddad

Current mass spectrometry techniques for the online measurement of organic aerosol (OA) composition are subjected to either thermal/ionization-induced artifacts or limited mass resolving power, hindering accurate molecular characterization. Here, we combin ...

AMER CHEMICAL SOC2020

Integrated proteogenomic deep sequencing and analytics accurately identify non-canonical peptides in tumor immunopeptidomes

Didier Trono, Marion Leleu, Evaristo Jose Planet Letschert, George Coukos, Ioannis Xenarios, Laia Simo Riudalbas, Delphine Yvette L Grun, Alexandre Harari, Markus Müller, Lin Zhang, Marion Arnaud, Florian Huber

Efforts to precisely identify tumor human leukocyte antigen (HLA) bound peptides capable of mediating T cell-based tumor rejection still face important challenges. Recent studies suggest that non-canonical tumor-specific HLA peptides derived from annotated ...

Nature Research2020

Near-infrared reversible photoswitching of an isolated azobenzene-stilbene dye

Eduardo Carrascosa Casado, Gabriel Da Silva

Photoswitching of a charged azobenzene-stilbene dye is investigated through laser excitation in a tandem ion mobility mass spectrometer. Action spectra associated with E -> Z and Z -> E photoisomerisation of the stilbene group exhibit bands at 685 and 440 ...

Elsevier2020