Astrid Sigel has studied languages and is an editor of the Metal Ions in Biological Systems series since Volume 11. Together with Hans G. Seiler, Astrid and Helmut Sigel have also edited the Handbook on Toxicity of Inorganic Compounds (1988) and the Handbook on Metals in Clinical and Analytical Chemistry (1994), and together with Ivano Bertini the Handbook on Metalloproteins (200 I) (all titles, Marcel Dekker).
Helmut Sigel is Emeritus Professor (2003) of Inorganic Chemistry at the University of Basel, Switzerland. He serves on various editorial and advisory boards, is involved in European research networks, and has lectured worldwide; he published over 300 articles on metal ion complexes of nucleotides, nucleotide analogues, coenzymes, and other ligands of biological relevance. He was named Protagonist in Chemistry (2002) by lnorganica Chimica Acta (issue 339); among further honors are the P Ray Award (Indian Chemical Society, of which he is also an Honorary Fellow), the Uerner Award (Swiss Chemical Society), a Doctor of Science honoris causa degree (Kalyani University, India), appointments as Visiting Professor (e.g., Austria , China, UK) and Endowed Lectureships.
Roland K. O. Sigel is Assistant Professor (2003) of Inorganic Chemistry at the University of Zurich, Switzerland, endowed with a Forderungsprofessur of the Swiss National Science Foundation. He received his doctoral degree summa cum laude (1999) from the University of Dortmund, Germany, working with Bernhard Lippert; thereafter he spent nearly three years at Columbia University, New York, USA, in the group of Anna Marie Pyle (now Yale University); during the six years abroad he received several fellowships from various sources. His research focuses on the structural and catalytic roles of metal ions in ribozymes, especially group II introns and on related topics.
