This issue contains selected papers from the Fifth World Congress of Biosensors, Berlin, Germany, June 3-5, 1998, Biosensors '98Biosensors and bioelectronics special issue on "Artificial Biosensing Interfaces (ABI)" Workshop no. 4 : Biomolecular Interaction, Recognition and Dynamics, Sitges, Barcelona, Spain, October 23-25, 1997 / ed. Wolfgang GöpelBiosensors and bioelectronics special issue on "Artificial Biosensing Interfaces (ABI)" Workshop no. 3 : Controlled Immobilization of Recognition Sites in Layer Structures / ed. B. Liedberg, W. Göpel