Bolaamphiphiles and Dyes on Solid Surfaces

One or two additional functional groups introduced via other a-hydrosulfide bolaamphiphiles can be characterized by measurements of the contact angle 0a of water and hexadecane (= HD) droplets, depending on the hydrophobicity and the position of the end groups (Table 1). They also attest to the short-range 

A series of dyes were dissolved in fluid surface monolayers or were covalently attached to the surface several typical examples follow and other examples and possible applications are discussed in Ulman s book.  

The fluidity of LB monolayers on solid supports was characterized by measuring the long-range ( 10 xm) translational diffusion of dissolved fluorescent lipids using fluorescence pattern photobleaching recovery (FPPR). In this technique, an area of the membrane is illuminated with a spatially striped intensity. After irreversibly photobleaching, fluorescence recovery occurs, as unbleached molecules from nonilluminated stripes move into the illuminated stripes . In fluid-like LB films, translational diffusion coefficients 

Finally, the unavoidable fullerenes were, of course, immobilized on solid surfaces. Fullerene, Ceo, and fullerene epoxide formed stable monolayers on water. The limiting molecular surface area was 95 A and a UV/VIS spectrum with bands around 300 nm was observed in LB multilayers on quartz.  

27 Various reactive head groups which have been covalently bound on the surface of SAMs. See text and references. 

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