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.
The primary goals for research of nano-bio-technologies in drug delivery include: 1  More specific drug targeting and delivery, 2  Reduction in toxicity while maintaining therapeutic effects, 3  Greater safety and biocompatibility, and. 4  Faster development of new safe medicines.