Seniors and Depression: The difference between depression and dementia. Depression is a mood disorder; dementias like Alzheimerâs disease, can have similar symptoms but they are different illnesses and have different treatment plans.
From a synthesis standpoint, nanotechnologies can be classified as variations of bottom-up technologies, such as self-assembly, or top-down technologies, such as lithographic methods (Box 1). Many nanotechnologies combine aspects of both strategies.
Nanomaterials research takes a materials science-based approach to nanotechnology, leveraging advances in materials metrology and synthesis which have been developed in support of microfabrication research.Materials with structure at the nanoscale often have unique optical, electronic, or mechanical properties.he goal of any synthetic method for nanomaterials is to yield a material that exhibits properties that are a result of their characteristic length scale being in the nanometer range (~1 â 100 nm).