Pancakes in tubes: Coronenes, a class of planar π‐conjugated molecules, organize in 1D structures when using single‐walled carbon nanotubes (SWCNTs) as templates (see picture). Coronene columns with coaxial stacking in SWCNTs exhibit characteristic fluorescence spectra that significantly differ from those of isolated coronene molecules and three‐dimensional crystals and that are related to their well‐ordered 1D structure.

No abstract

Pancakes in tubes: Coronenes, a class of planar π‐conjugated molecules, organize in 1D structures when using single‐walled carbon nanotubes (SWCNTs) as templates (see picture). Coronene columns with coaxial stacking in SWCNTs exhibit characteristic fluorescence spectra that significantly differ from those of isolated coronene molecules and three‐dimensional crystals and that are related to their well‐ordered 1D structure.

Single-walled carbon nanohorns (SWNHs) intravenously administered to mice did not show severe toxicity during a 26-week test period, which was confirmed by normal gross appearance, normal weight gain and the lack of abnormality in the tissues on histological observations of the mice. SWNH biodistribution was influenced by chemical functionalization. Accumulation of SWNH in the lungs reduced as SWNH hydrophilicity increased; however, the most hydrophilic SWNHs modified with bovine serum albumin (BSA) were most likely to be trapped in the lungs, suggesting that the BSA moiety enhanced macrophage phagocytosis in the lungs. Clearance of some of the hydrophobic SWNHs from the lungs was observed, the mechanism of which is briefly discussed.

No abstract