About the Authors

Alexandra Hebar

Affiliation MC Toxicology Consulting GmbH, Vienna, Austria

Christiane Koller

Affiliation Marinomed Biotechnologie GmbH, Vienna, Austria

Jan-Marcus Seifert

Affiliation Marinomed Biotechnologie GmbH, Vienna, Austria

Monika Chabicovsky

MC@toxicology.cc

Affiliation MC Toxicology Consulting GmbH, Vienna, Austria

Angelika Bodenteich

Affiliation Marinomed Biotechnologie GmbH, Vienna, Austria

Andreas Bernkop-Schnürch

Affiliation ThioMatriX, Innsbruck, Austria

Andreas Grassauer

Affiliation Marinomed Biotechnologie GmbH, Vienna, Austria

Eva Prieschl-Grassauer

Affiliation Marinomed Biotechnologie GmbH, Vienna, Austria

Competing Interests

Authors AG and EPG are co-founders of Marinomed Biotechnologie GmbH. AG and EPG are inventors of a patent (#WO2009027057; “Antiviral composition comprising a sulfated polysaccharide”) held by Marinomed Biotechnologie GmbH that relates to the content of the manuscript. CK, JMS and AB are employed by Marinomed Biotechnologie GmbH. Authors AH and MC are employed by MC Toxicology Consulting GmbH being non-clinical consultants to Marinomed. Author ABS is employed by ThioMatriX, a contract research organization that performed one of the published studies (in vitro permeation study). This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: EPG AG MC AB. Performed the experiments: CK JS ABS. Analyzed the data: MC ABS EPG. Wrote the paper: AH MC.