Comparison of 20nm silver nanoparticles synthesized with and without a gold core: Structure, dissolution in cell culture media, and biological impact on macrophages - Munusamy, P; Wang, C; Engelhard, MH; Baer, DR; Smith, JN; Liu, C; Kodali, V; Thrall, BD; Chen, S; Porter, AE; Ryan, MP (Biointerphases, 2015)