Special issue on “Molecular Sensors and Molecular Logic Gates”

This issue of Frontiers of Chemical Science and Engineering highlights recent progress toward fluorescent probes that was originally conceived to coincide with 7th Conference on Molecular Sensors and Molecular Logic Gates(MSMLG 2020)to celebrate the career of Seiji Shinkai and hosted by Anthony Czarnik at the University of Nevada in Reno.Sadly,that meeting was cancelled due to the pandemic associated with COVID-19.However,this collection of research and review papers will now serve as an introduction to MSMLG 2022 which will be in Dublin,Ireland on 7–10 June 2022,where Thorfinnur Gunnlaugsson will be the local host.The collection of papers contained in this special issue covers in vitro and in vivo applications and illustrates the potential for practical sensing and imaging of disease-related species.