Luminescent Marker for GSR: Evaluation of the Acute Oral and Inhalation Toxicity of the MOF [Eu(DPA)(HDPA)].

The metal-organic framework (MOF) [Eu(DPA)(HDPA)] (where DPA is dipicolinic acid) has been previously reported as an efficient marker for gunshot residues (GSRs). Since this marker will be in contact with various shooters, industrial workers, and the environment, however, it is important to identify its toxicity. In this work, the oral and the inhalation acute toxicities of the MOF [Eu(DPA)(HDPA)] (also called R-Marker) were evaluated in young Wistar rats using Guidelines 423 (oral) and 436 (inhalation) from the Organisation for Economic Co-operation and Development (OECD).