Security Crystals: NIR-To-NIR Upconverting Nanoparticles for Fingerprint Identification and DNA Extraction Posted on June 30, 2023 By sdargoltz William M. Cross, Ph.D. South Dakota School Mines Technol; 99pp; 2023 Access article Chemistry, Crime Scene Investigation and Reconstruction, Fingerprints / Friction Ridge, Seized Drugs/Controlled Substances, Trace Evidence Tags:NIJ