Table 1. Labelling efficiency (%) of breast cancer cells (MDA-MB-231) and endothelial cells (2H11) obtained with a PA flow cytometry.

Cells	Spasers	Incubation time (min)
		10	30	60
Cancer	Conjugated	37	76	89
	Non-conjugated	1	2.1	11
Endothelial	Conjugated	1	4.5	8
	Non-conjugated	—	2	7