Hi! A phospholipid is a fat molecule that consists of a head and two tails. The "head" is a compound molecule that contains a phosphate ion and a glycerol molecule. The "tails" consist of a chain of linked carbon atoms that have hydrogen atoms stuck to either side of the carbon chain. (There is an excellent diagram of a phospholipid at
https://www.boundless.com/biology/textbooks/boundless-biology-textbook/biological-macromolecules-3/lipids-55/phospholipids-300-11433/)
I would like a set of phospholipid models that can be put together - a sphere for the head and sticks for the tails - in such a way that they can be assembled into a sheet of connected phospholipids. By inverting one of these sheets and connecting it to another non-inverted sheet, the models can be assembled into a phospholipid bilayer. Further, I would like to insert into this bilayer model other objects representing proteins that embed themselves into actual phospholipid bilayers. An excellent visual representation of what I have in mind can be found in the 14th cell of the slide presentation at
http://slideplayer.com/slide/9661909/.
My goal is to have a set of 3D-printable pieces that a blind student could assemble to represent a 3-dimensional model of a phospholipid bilayer so as to convey the concepts a sighted person understands when looking at some of the images I've linked.