Abstract
Invited for this month's cover are collaborators from the University NOVA of Lisbon/FCT, The University of Trás-os-Montes e Alto Douro (both in Portugal), and the University of La Rioja (Spain). The cover picture is devoted to the nano-tetracycline composites based on gold and silver nanoparticles that are able to detect aluminium (III) in water and can be used as antibacterial delivery tools. For more details, read the full text of the article at 10.1002/open.201600016.