Stable Isotope Tracer To Determine Uptake and Efflux Dynamics of ZnO Nano- and Bulk Particles and Dissolved Zn to an Estuarine Snail - Khan,FR; Laycock,A; Dybowska,A; Larner,F; Smith,BD; Rainbow,PS; Luoma,SN; Rehkaemper,M; Valsami-Jones,E (ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013)