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)