In this work, we have demonstrated debundling of Molydenum-sulphur-iodine nanowires simply by diluting dispersions of nanowires in isopropanol. Using atomic force microscopy, we observe the bundle diameter distribution to decrease dramatically as a function of concentration. In addition, a significant population of individual nanowires is present at all concentrations. This population increases with decreasing concentration until one quarter of all dispersed objects are individual nanowires at a concentration of 4 x 10(-3) Mg/ml. The partial concentration of individual nanowires also increases with decreasing concentration but actually peaks at a concentration of similar to 4x 10(-3) mg/ml. This represents an optimum concentration for finding individual nanowires. (c) 2006 Elsevier B.V. All rights reserved.