Although accurate values of surface and interfacial energies, and hence of the Dupr茅 energy of adhesion y, can seldom be calculated from first principles, y for smooth elastomers in contact has been derived from experimental measurements of adherence (at equilibrium the stress intensity factor for ...
The water contact angle measurement is not able to give a numerical value for surface free energy. Tocalculate the surface free energy, measurements with at least two probe liquids are required. The surface free energy calculations are based on the modeling of the interfacial tension between the ...
Controlling the Orientation of Electrospun Nanofibers for Tissue Engineering Learn More In order to improve solvent evaporation, air flow can be introduced in the electrospinning chamber at a desired speed. This parameter, in combination with a slightly negative pressure in the chamber, is more frequen...
the main limitation of this study is the fact that we have not been able to finely tune the work function and electron affinity of a particular BDD surface. Thus, further investigation is still needed to better understand the complex interplay of the interfacial factors of the BDD and physicoch...
Figure 7. Aggregation mechanisms: (a) the potential energy surface for a protein folding process. The competing basins of attractions are populated by the folding intermediates which have higher energy than the native folded protein. The native basin of attraction is a low-lying critical point, po...
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The energy required to break chemical bonds at the interface can also be an information quantity.It is expressed as the work of adhesion and is formally equal to the product of the previously defined adhesion strength and the distance between the separating surface and the substrate after the coa...
To correctly describe the molecular details of the interface, it needs to be determined how molecules are oriented, and what the influence is of interfacial electrostatic fields and H-bonding on the orientational distribution. Here, we revisit the relations betweenβ2andχ2and show, by means of ...