Microscopic Observation of Ice Crystal Surface Containing Adsorbed Silane Coupling Agents.

Analysis of ice crystal growth for a crystal surface containing adsorbed antifreeze proteins

The adsorption of antifreeze protein (AFP) molecules to the ice crystal surface during melt growth from an AFP solution results in disturbance of the growth kinetics at the surface interface. In this paper, the growth pattern related to the potential for crystal growth as well as the crystal surface topography have been studied. The crystal shape and size were found to be strongly dependent on ...

[Silane coupling agents].

Surface Reactions on Thin Layers of Silane Coupling Agents

The reactivity of immobilized functional groups in thin layers of (3-aminopropy1)triethoxy~ilane (APS), (3-mercaptopropyl)trimethoxy~ilane, (3-bromopropyl)trimethoxysilane, and (8-bromoody1)trimethoxysilane on oxidized aluminum substrates was studied with reflection-adsorption infrared spectroscopy (RAIR), optical ellipsometry and contact-angle measurements. Mass changes on the surface associat...

Synthesis and antimicrobial activity of quaternary ammonium silane coupling agents.

Fourteen novel silane coupling agents with a quaternary ammonium group introduced into the molecule, [CH(2)=CHCH(2)N(+)(CH(3))(C(n)H(2n+1))(CH(2))(3)Si(OCH(3))(3)]X(-) (n-X, n=10-18, X=Cl, Br, or I), were synthesized with the aim of using these agents to make material surfaces antimicrobial for a long period of time. Measurements of the minimum inhibitory concentrations (MIC) against 12 kinds o...

Photolysis of Molecules Adsorbed on Single Crystal Surface

The studies in the VUV and soft-x-ray surface photophysics and photochemistry in the microscopic level using monochromatic synchrotron radiation is a new research category. In this article we employed the techniques of photon-stimulated desorption (PSD) of positive/negative ions and photoelectron spectroscopy (PES) to study the photolysis of molecules adsorbed on single crystal surface by monoc...