Interfacial binding properties

M.T. Rojas, R. Koniger, J.R Stoddart, A.E. Kaifer, Supported Monolayers Containing Preformed Binding Sites - Synthesis and Interfacial Binding Properties of a Thiolated /S-Cyclodextrin Derivative , J. Am. Chem. Soc., 117, 336 (1995)... 

Understanding those components that influence the interfacial binding properties in protein/protein and protein/ligand interactions is of basic importance in protein chemistry. In this report, we have defined a system that should allow the dissection of those chemical properties that influence primary interactions via an evaluation of the transition-state thermodynamic components. 

Rojas, M.T. Kaifer, A.E. Molecular recognition at the electrode-solution interface. Design, self-assembly, and 127. interfacial binding properties of a molecular sensor. J. 

To mimic the mechanical behavior of the native tissue is a basic assumption to facilitate the biointegration and function of the substitute. Incorporation of fibers to the biomaterial matrix opens the way to inhomogeneity, anisotropy, nonlinearity, and viscoelasticity features. Provided that interfacial binding between matrix and fibers in the composite goes on, mechanical properties could be tailored by varying the amount and orientation of fibers embedded, to suit the purpose applications, whether it s related to hard or soft tissue substimtes. Individual fibers, no matter how small and isolated compared to fibrous structure, could affect mechanical properties. To be effective, fibers principal direction should be considered and controlled. 

Finally, It Is Important to note that the results and discussion presented here correspond to tribological properties of adsorbed bottle bmsh systems, measured on a microscopic scale under boundary conditions in the absence of interfacial wear. In macroscopic tribological settings in which the polymer Is removed at the sliding interface through shearing action, a more complex relationship between friction and molecular architecture is anticipated because of the contribution of interfacial binding and adsorption kinetics. Additional differences in the relationship between friction and structure are also likely for surfaces at which PEG moieties have been directly attached. 

These relationships predict the binding Hquid content for wet agglomeration with an accuracy of only ca 30%. The Hquid content required to agglomerate a particular feed material depends, for example, on the interfacial properties of the system (45). Typical values of moisture content required for hailing a variety of materials are listed in Table 2. Very accurate information on the optimum Hquid content to agglomerate a particular feed material must be obtained from experimental tests. 

The outlined properties make the biphenyl system ideal for the study of interfacial phenomena and apphcations as stable intermediate binding sites for catalytic systems. 

This broad class of hydrolases constitutes a special category of enzymes which bind to and conduct their catalytic functions at the interface between the aqueous solution and the surface of membranes, vesicles, or emulsions. In order to explain the kinetics of lipolysis, one must determine the rates and affinities that govern enzyme adsorption to the interface of insoluble lipid structures -. One must also account for the special properties of the lipid surface as well as for the ability of enzymes to scooC along the lipid surface. See specific enzyme Micelle Interfacial Catalysis... 

Here, a brief summary is provided of the current understanding of the electronic structure properties of the hetero junction interface. We start with the basic picture of the energetics (Sec. 2.1), based on the offset between the frontier orbitals of the two polymer species this offset triggers the dissociation of the photogenerated exciton if the exciton binding energy cb 0.5 eV can be overcome. To refine this picture, explicit electronic structure calculations are necessary, which pose a formidable challenge for the interfacial systems under consideration. Secs. 2.2 and 2.3 summarize recent efforts in this direction [41,43,44,56]. 

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