abundantly present in the 4.54-billion-year-old earth system. Therefore, ever since
life first appeared on this planet, natural NMs and living things have coevolved.
2.3
Classification of Nanomaterials
NMs are classified based on dimensionality (Fig. 2.2), composition, uniformity,
morphology, and agglomeration (Royal 2004; Buzea et al. 2007).
2.3.1 Dimensionality
(a) 0D nanomaterials: Zero-dimension NMs are those materials that are measured
within the nanoscale. Examples of zero-dimensional NMs are NPs and
nanopores.
Fig. 2.2 Classification of nanomaterials based on dimensionality
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life first appeared on this planet, natural NMs and living things have coevolved.
2.3
Classification of Nanomaterials
NMs are classified based on dimensionality (Fig. 2.2), composition, uniformity,
morphology, and agglomeration (Royal 2004; Buzea et al. 2007).
2.3.1 Dimensionality
(a) 0D nanomaterials: Zero-dimension NMs are those materials that are measured
within the nanoscale. Examples of zero-dimensional NMs are NPs and
nanopores.
Fig. 2.2 Classification of nanomaterials based on dimensionality
2 Nanomaterials; Applications; Implications and Management
27