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Letter

Nature Materials 5, 118–122 (1 February 2006) | doi:10.1038/nmat1571

An X-ray computed tomography imaging agent based on long-circulating bismuth sulphide nanoparticles

Oded Rabin , J. Manuel Perez , Jan Grimm , Gregory Wojtkiewicz & Ralph Weissleder

Nanomaterials have become increasingly important in|[nbsp]|the development of new molecular probes for in|[nbsp]|vivo imaging, both experimentally and clinically. Nanoparticulate imaging probes have included semiconductor quantum dots, magnetic and magnetofluorescent nanoparticles, gold nanoparticles and nanoshells, among others.