Symposium DD‎,‎ ‎'‎De Novo Carbon Nanomaterials‎'‎ and Symposium EE‎,‎ ‎'‎New Functional Nanocarbon Devices‎'‎ were held April 9‎-13 at the 2012 MRS Spring Meeting in San Francisco‎,‎ California‎.‎ A variety of electronic‎,‎ mechanical‎,‎ optical and chemical properties of carbon nanomaterials derive from its different allotropes including nanotubes‎,‎ fullerenes‎,‎ diamond‎,‎ amorphous carbon and grapheme‎.‎ Applications of such multiscale‎-engineered materials are diverse and range from nano‎-electronics to novel construction materials‎,‎ and could have wide‎-ranging implications to facilitate new technological innovations at the interface of materials science‎,‎ engineering and biology‎.‎ This symposium proceedings volume represents the recent advances in the manufacturing‎,‎ synthesis and modeling of carbon nanomaterials with applications in novel devices‎.‎