Molecular water accumulation on silica measured by land-contrast interferometry with picometer height resolution
Optics
2009-08-06 v1 Chemical Physics
Abstract
We observed water film accumulation on silica surfaces in the air to 2 picometer resolution using optical land-contrast (LC) interferometry. The land-contrast approach is non-destructive and allows real-time measurement of thickness variation of small molecular films on a surface. Water accumulation rates are observed to be different on bare or protein monolayer coated silica surfaces. This suggests that water contributes false signals to mass-sensitive biosensors for protein microarray.
Keywords
Cite
@article{arxiv.0908.0550,
title = {Molecular water accumulation on silica measured by land-contrast interferometry with picometer height resolution},
author = {Xuefeng Wang and Ming zhao and David D Nolte},
journal= {arXiv preprint arXiv:0908.0550},
year = {2009}
}