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branch- The repeated units of the dendrimer
between the core and
surface that multiplies the number of surfaces
each generation. The branches play a
key roll in defining the
chemical environment and void spaces of the interior of the
dendrimer.
convergent synthesis- The method
of
dendrimer synthesis where branches are synthesized and then brought
together to
make higher generations and finally attached to a core.
core- The center of the dendrimer where the
branches are attached.
The core determines the initial degree of
branching and contributes to the internal
properties of the dendrimer.
dendrimer- A
synthetic,
three-dimensional macromolecule formed using a nanoscale
fabrication
process. A dendrimer is built up from monomers, with new branches added
in
steps until a tree-like structure is created (dendrimer comes from
the Greek dendra,
meaning tree).
dendron- A dendrimer that radiates from
fewer than all of its branch points at the core. Often half a dendrimer.
divergent synthesis- The method of dendrimer synthesis where
branches are synthesized from the core outward in successive generations
generation- The number of synthesis
cycles that the
dendrimer has gone through. first round brings the dendrimer to Generation=0.0 (G0),
the
next to G1, etc?
hyperbranched polymer- A
polymer
that is highly branched (as opposed to linear). Dendrimers are the
most
controlled and well defined hyperbranched polymer.
nanotechnology- The creation and usage of stuctures in the
range of 1-100 X 10-9 meters in size.
PAMAM-
Poly(AMido
AMine)-Refers to the linkages between generations of
the first type of dendrimer, synthsized by Dr. Donald A. Tomalia.
surface- The outermost layer of the
dendrimer where the
branches terminate. The surface defines much
of the dendrimer's chemical
properties and reactivity.
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