Plasmonic substrates for multiplexed protein microarrays with femtomolar sensitivity and broad dynamic range NATURE COMMUNICATIONS Tabakman, S. M., Lau, L., Robinson, J. T., Price, J., Sherlock, S. P., Wang, H., Zhang, B., Chen, Z., Tangsombatvisit, S., Jarrell, J. A., Utz, P. J., Dai, H. 2011; 2