TY - GEN AU - Johnson, M E AU - Bustos, A R Montoro AU - Hanna, S K AU - Petersen, E J AU - Murphy, K E AU - Yu, L L AU - Nelson, B C AU - Winchester, M R C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2017-10-01 04:10:00 DO - https://doi.org/10.6028/NIST.SP.1200-24 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2017 TI - Sucrose density gradient centrifugation for efficient separation of engineered nanoparticles from a model organism, Caenorhabditis elegans: ER -