Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
The interfacial stress of self-assembled monolayers on Au exposed to buffers of various pH values and ionic strengths is measured as a function of the liquid environment. The method uses two thiol-modified Au-covered silicon cantilevers and a differential method to compensate for thermal and refractive index changes of the liquid environment. Increasing pH and ionic strength leads to a bending, i.e., a compressive stress, of a mercaptohexadecanoic acid-covered cantilever compared to a hexadecanethiol-covered reference cantilever. In addition, the interfacial stress is found to be highly dependent on the surface density of the ionizeable mercaptohexadecanoic acid molecules when they are coadsorbed with hexadecanethiols on Au.
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
A.B. McLean, R.H. Williams
Journal of Physics C: Solid State Physics
S. Cohen, T.O. Sedgwick, et al.
MRS Proceedings 1983
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures