Bottom-up assembly of hydrogels from bacteriophage and Au nanoparticles: the effect of cis- and trans-acting factors. - Souza GR; Yonel-Gumruk E; Fan D; Easley J; Rangel R; Guzman-Rojas L; Miller JH; Arap W; Pasqualini R (PloS one, 2008)