Characterization of Individual Nanoparticles with Nanoprojectile-SIMS
نویسندگان
چکیده
The uniqueness of nanoparticles, NPs, due to their functionalities not present in bulk size is well documented. A nuanced understanding of their functionalities depends on their accurate characterization. Generally the analysis is done on an ensemble of NPs. However, there is likely some variation in the NP population and ensemble averaging can limit insight into the relationships between size, composition, and chemical reactivity of NPs. This is especially the case for very small NPs where minor changes in size, shape, or composition can significantly affect chemical reactivity. We have developed an innovative methodology for analyzing individual NPs, in particular objects of 2-50 nm in size.
منابع مشابه
Characterization of individual nano-objects with nanoprojectile-SIMS.
Secondary ion mass spectrometry (SIMS) applied in the event-by-event bombardment/detection mode is uniquely suited for the characterization of individual nano-objects. In this approach, nano-objects are examined one-by-one, allowing for the detection of variations in composition. The validity of the analysis depends upon the ability to physically isolate the nano-objects on a chemically inert s...
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