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Science 27 October 1995:
Vol. 270. no. 5236, p. 557
DOI:

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Lipid monolayers are used to construct two-dimensional arrays and as a model for biological membranes. These monolayers exhibit domain structure that can vary as a function of chemical composition, pressure, and temperature; however, information on the detailed domain structure has been difficult to obtain. Hwang et al. (p. 610) have used near-field scanning optical microscopy to image domain boundaries, to measure chemical composition, and to follow the partitioning of a probe material into the different phases. Such features were not visible in far-field epifluorescence microscopy.

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