Structure and reactivity of water at biomaterial surfaces.
Download e-book for iPad: The bond length is derived from the determined coordinates. The determined C-metal bond length for CO adsorption on metallic surfaces plotted as a function of the covalent radius of the substrate atom.
The dashed line is a guide to the eye through the data, the error bars are those of the determination. Adsorption of organic molecules on metals The simplest adsorbed organic molecule to have been studied is acetylene, C2H2, on Ni and Cu This orientation locates one C atom approximately in the fcc-hollow site and the other in the hcp-hollow see fig.
Cohesion and Structure of Surfaces - download pdf or read online
The unit cell contains two inequivalent Ge adatoms and is illustrated in fig. I, w reduction of the total energy by saturation of dangling bonds and an increase in the total energy due to an increase in surface strain.
The Si adatoms, released by the formation of vacancies, saturate three dangling bonds each. However, the creation of these vacancies increases the surface strain.
Physicochemical properties of interfacial water profoundly influence the biological response to materials in a surprisingly straightforward manner when key measures of biological activity sensitive to interfacial phenomena are scaled against water adhesion tension tau O of contacting surfaces. Adsorption to hydrophobic surfaces is driven by the reduction of interfacial energetics concomitant with replacement of water molecules at the surface by adsorbed solute surface dehydration.
Protein-adsorbing hydrophobic surfaces are inefficient contact activators of the blood coagulation cascade whereas protein-repellent hydrophilic surfaces are efficient activators of blood coagulation.
Mammalian cell attachment is a process distinct from protein adsorption that occurs efficiently to hydrophilic surfaces but inefficiently to hydrophobic surfaces. National Center for Biotechnology Information , U. Didn't get the message? Add to My Bibliography.
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Generate a file for use with external citation management software. Adv Colloid Interface Sci. Abstract Molecular self association in liquids is a physical process that can dominate cohesion interfacial tension and miscibility.