The invention provides diagnostic apparatuses that are advantageously adapted for the Raman spectroscopic analysis of fluid samples, such as biological fluid samples, deposited on test strip substrates. The tests strips may be include a surface-enhanced Raman spectroscopy (SERS) surface for deposition...http://www.google.se/patents/US20070224683?utm_source=gb-gplus-sharePatent US20070224683 - Raman spectroscopic test strip systems
