Interdigitated structures

Anhydrous zinc phosphonate Zn(03PCH3) is unreactive with water but reacts with primary amines (chain length up to Cg) and ammonia to form intercalation compounds. The intercalation is shape selective as amines with branching at the a-carbon cannot coordinate to the zinc. Different structures are noted for even and odd carbon chain lengths with odd numbers of carbons in the alkyl chain forming a more efficiently packed interdigitated structure.420... 

These results clearly show that our solvent displacement process leads to the formation of AmB-lipid structures that are different from the ribbon-like ones described by Janoff et al. (11,21) for the same composition. Our observations are consistent with a model of the antibiotic intercalated between the phospholipids in an interdigitated structure for the molar ratio DMPC/DMPG/AmB 7/3/5. The strong interaction between AmB and... 

Figure 4 Micromixers, (a) Interdigital structure of a multilamination micromixer. (b) Principle of split-and-recombine static micromixers. (Source IMM.)...

Bifurcation branching achieves equidistribution by flow symmetry (see Figure 1.72). The outlet arrangement is basically identical with the interdigital feed concept. While the bifurcation concept does not demand the build-up of an additional pressure barrier (see the interdigital structures in Section 1.3.9), besides the pressure drop for the flow passage itself, it poses much higher demands on the structural... 

Luciferin/luciferase reaction to monitor multi-lamellae formation/interdigital structures for biochemical applications... 

FIGURE 10.6 Lamellar structure (a) and interdigitated structure (b) of PpPEs. 

On the transducer side, there have been more recent developments like the Lamb oscillator or the so-called film bulk acoustic resonators (FEAR). Lamb wave devices are related to SAW in terms of using interdigitated structures for transduction. The difference, however, is that in a Lamb wave resonator not only the surface, but the entire bulk of the device oscillates. This makes it much less sensitive against viscous damping. FEAR on the other hand consist of a metal/aluminium nitride/metal sandwich, where bulk waves (thickness oscillations) are induced in the AIN material. Eoth these devices have in com-... 

Certain design configurations of the electrode elements of an electrochemical cell are obvious and logical. For instance, as shown in figure 16.3, concentric ring and disk designs and an interdigitated structure are frequently used for two-electrode systems. For a three-electrode voltammetric or amperometric device, it... 

Figure 16.3 Commonly used microfabricated electrochemical sensor structures (a) a ring and disk structure b) an interdigitated structure.

Detailed x-ray diffraction studies on polar liquid crystals have demonstrated the existence of multiple smectic A and smectic C phases [14,15 and 16]. The first evidence for a smectic A-smectic A phase transition was provided by the optieal microscopy observations of Sigaud etal [17] on binary mixtures of two smectogens. Different struetures exist due to the eompeting effects of dipolar interactions (which can lead to alternating head-tail or interdigitated structures) and sterie effeets (which lead to a layer period equal to the molecular length). These... 

Figure 1. (a, left) Interdigitated structure of PPEs. (b) Lamellar structure of PPEs. 

The interdigitated structures proposed for the SmA of the various salts. Organic moieties are represented by rectangles, alkyl chains by black lines, and counterions by circles. 

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