industry doc http://www.biolinscientific.com/zafepress.php?url=/pdf/Q-Sense/Application%20Notes/QS_AN_405-22-1_-qcm-d-as-screening-tool-for-protein-adsorption-on-container-systems-1.pdf informal overview http://www.labtimes.org/labtimes/trick/tricks/2011_07.lasso research pubs http://www.jbc.org/content/280/27/25558.full http://www.ncbi.nlm.nih.gov/pubmed/6670734