Publications de Anne Thérèse Sigstam

Viruses at solid-water interfaces: A systematic assessment of interactions driving adsorption

Tamar Kohn, Anne Thérèse Sigstam, Meret Aeppli, Antonius Magdi Hakeem Armanious, Dominik Refardt

Adsorption to solid-water interfaces is a major process governing the fate of waterborne viruses in natural and engineered systems. The relative contributions of different interaction forces to adsorption and their dependence on the physicochemical propert ...

Amer Chemical Soc2016

On the cause of the tailing phenomenon during virus disinfection by chlorine dioxide

Tamar Kohn, Qingxia Zhong, Anne Thérèse Sigstam, Moritz Brennecke, Andreas Rohatschek

This study investigates the mechanisms underlying the deviation from Chick-Watson kinetics, namely a tailing curve, during the disinfection of viruses by chlorine dioxide (ClO2). Tailing has been previously reported, but is typically attributed to the deca ...

Elsevier2014

Mechanistic insight into virus disinfection : influence of virus characteristics, solution composition and surface interactions

Anne Thérèse Sigstam

EPFL2014

Subtle differences in virus composition affect disinfection kinetics and mechanisms

Tamar Kohn, Brian Pecson, Krista Rule Wigginton, Anne Thérèse Sigstam, Michele Cascella

Viral disinfection kinetics have been studied in depth, but the molecular-level inactivation mechanisms are not understood. Consequently, it is difficult to predict the disinfection behavior of non-culturable viruses, even when related, culturable viruses ...

American Society for Microbiology2013

Virus inactivation mechanisms: impact of disinfectants on virus function and structural integrity

Tamar Kohn, Krista Rule Wigginton, Brian Pecson, Anne Thérèse Sigstam, Franziska Sara Bosshard

Oxidative processes are often harnessed as tools for pathogen disinfection. Although the pathways responsible for bacterial inactivation with various biocides are fairly well understood, virus inactivation mechanisms are often contradictory or equivocal. I ...

Amer Chemical Soc2012

Inactivation of bacteriophage MS2 with potassium ferrate(VI)

Tamar Kohn, Anne Thérèse Sigstam, Timothy Strathmann

Ferrate [Fe(VI); FeO42-] is an emerging oxidizing agent capable of controlling chemical and microbial water contaminants. Here, inactivation of MS2 coliphage by Fe(VI) was examined. The inactivation kinetics observed in individual batch experiments was wel ...

Amer Chemical Soc2012

UV radiation induces genome-mediated, site-specific cleavage in viral protein

Tamar Kohn, Yury Tsybin, Laure Menin, Hisham Ben Hamidane, Krista Rule Wigginton, Anne Thérèse Sigstam, Michele Cascella

Much research has been dedicated to understanding the molecular basis of UV damage to biomolecules, yet many questions remain regarding the specific pathways involved. Here we describe a genome-mediated mechanism that causes sitespecific virus protein clea ...

2012