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.
Based on the definition of nanotech given above, biotech can be thought of as a subset of nanotech - nature's nanotechnology.. Biotech uses the molecular structures, devices, and systems found in plants and animals to create new molecular products.ased on the definition of nanotech given above, biotech can be thought of as a subset of nanotech - nature's nanotechnology.. Biotech uses the molecular structures, devices, and systems found in plants and animals to create new molecular products.