1. Laboratory of Organic Electronics, Department of Science and Technology Linköping University Norrköping 601 74 Sweden
2. Department of Physiology and Pharmacology, Center for Molecular Medicine Karolinska Institute Stockholm 171 76 Sweden
3. Laboratory of Growth Regulators Institute of Experimental Botany of the Czech Academy of Sciences and Faculty of Science of Palacký University Olomouc 78371 Czech Republic
4. Department of Printed Electronics Research Institute of Sweden Norrköping 602 21 Sweden