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Schematic representation of the hypothetical binding of polyamine polymer to the surface of CNTs.
Notes: The thin layer of PAMAM polymer is visible by transmission electron microscopy as a cloudy matter absorbed on the CNT’s surface (black arrows). Aggregates of CNTs indicate that the polyamine polymer is able to interact with multiple CNTs leading to a complex and not homogeneous mixture.
Abbreviations: CNTs, carbon nanotubes; PAMAM, polyamidoamine dendrimer.
