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The defects created by scanning probe lithography (SPL) under ambient conditions in CVD grown graphene were investigated using atomic force microscopy, micro-Raman (μ-RS) and micro-X-ray photoelectron spectroscopy (μ-XPS). Topographically, both protrusion and depression structures with distinguishable tribological properties were produced simultaneously. However, the key aspects of the spectroscopy...
Study of local anodic oxidation (LAO) of single layer graphene (SLG) supported on thin oxide buffered silicon template is reported. Centimeter scaled SLG sheet grown through chemical vapor deposition on Cu foil is transferred onto patterned silicon template covered with thin oxide steps. LAO are performed on the supported SLG through contact mode atomic force microscopy in ambient condition. LAO bumps...
An increasing number of studies have been devoted to studying the respiratory toxicity of carbon nanomaterials, but little information is known, thus far, on the biodistribution of these nanomaterials after inhalation or intratracheal instillation. We synthesized and labeled a polyhydroxylated derivative of fullerene C 60 (OH) x (x=22,24) with 99m Tc. With single photon emission...
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