. 2016 Sep 20;44(21):10377–10385. doi: 10.1093/nar/gkw845

Table 1. A comparison between our Na⁺ aptamer sensor and representative crown ether based sensors.

Sensors	LOD (mM Na⁺)	Selectivity over K⁺	Selectivity over Li⁺	Ref.
This work	0.4	10-fold	>100-fold
Crown ether	0.1	15-fold	∼4-fold	(57)
Crown ether	<2.7	∼10	∼2-fold	(58)
Crown ether	<5	3.4-fold	NA	(59)

NA = No data available.

Table 1. A comparison between our Na+ aptamer sensor and representative crown ether based sensors.