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Science 20 December 1996:
Vol. 274. no. 5295, pp. 1983 - 0
DOI: 10.1126/science.274.5295.1983d
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Lipids and other molecules with polar head groups and long tails can form monolayer (Langmuir) films on a water surface, but making multilayers requires transfer to a solid substrate. Kuzmenko et al. (p. 2046) have made multilayers at an air-water interface by incorporating a small basic molecule to stabilize the interaction between long-chain molecules with acidic head groups. Structural studies showed that the type of multilayers formed under compression depended on the relative handedness of the two molecules--if both were right handed, trilayers with a crystalline segment were formed, but if the molecules had different handedness, amorphous bilayers with poor chain packing were formed.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)