Sweet X-ray spectroscopy

We recently realised that Near-edge X-ray absorption fine-structure (NEXAFS) spectroscopy at the C K-edge can distinguish between different saccharides because minute variations in average C-O bond lengths manifest as detectable shifts of the shape resonances associated with these bonds. This opens up the possibility for novel analytical approaches, for example to identify different types of sugars in drug formulations or foods:

NEXAFS Sensitivity to Bond Lengths in Complex Molecular Materials: A Study of Crystalline Saccharides
A. Gainar, J. S. Stevens, C. Jaye, D. A. Fischer & S. L. M. Schroeder
Journal of Physical Chemistry B 119 (2015), in press.

Paper on XPS of Amino Acids and Peptides

Having made some unexpected impact with our 2009 Surface and Interface Analysis paper on the XPS of saccharides (see here), we are now publishing a conceptually similar paper, this time dealing with the XPS of several amino acids and peptides derived from them:

Quantitative Analysis of Complex Amino Acids and RGD Peptides by X-ray Photoelectron Spectroscopy (XPS)
J.S. Stevens, A.C. de Luca, M. Pelendritis, G. Terenghi, S. Downes, S.L.M. Schroeder
Surface and Interface Analysis (2013), in press.
DOI: to be confirmed