Tunable star-shaped triphenylamine fluorophores for fluorescence quenching detection and identification of nitro-aromatic explosives† Nakorn Niamnont,ab Nattaporn Kimpitak,a Kanet Wongravee,a Paitoon Rashatasakhon,a Kim K. Baldridge,c Jay S. Siegel*c and Mongkol Sukwattanasinitt*a Author affiliations * Corresponding authors a Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University and Nanotec-CU Center of Excellence on Food and Agriculture, Bangkok 10330, Thailand E-mail: smongkol@chula.ac.th Fax: +66 2 2187598 Tel: +66 2 2187620 b Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand c Organic Chemistry Institute, University of Zurich, Winterthurerstrasse 190, Zurich, Switzerland E-mail: jss@oci.uzh.ch Fax: +41 44 635 6888 Tel: +41 44 635 4201 Abstract Triphenylamine-based fluorophores containing pyrene or corannulene show variable fluorescence quenching sensitivity toward nitro explosives. The most sensitive fluorophore is capable of detecting TNT on the ng cm−2 scale; the array is useful for identifying nitro aromatics. This article is part of the themed collection: Aromaticity You have access to this article Please wait while we load your content... Something went wrong. Try again?