Table II.

A summary of boronic acid-based sensors

Compound No.	Sensor Target	Binding Constants (Ka)	Study conditions
19, 20a–c	Glucose	23 M−1 to 37 M−1	λex: 460 nm, λem: 510 nm, in phosphate buffer, pH = 7.4
21, 20a–c	Glucose	14 M−1	λex: 414 nm, λem: 644 nm, in phosphate buffer, pH = 7.4
22, 20a–c	Glucose	around 100 M−1	λex: 460 nm, λem: 604 nm, in phosphate buffer, pH = 7.4
26	gluconic acid	107 M−1	UV studies in 75% methanol/HEPES buffer, pH = 7.4
27	sorbitol	1060 M−1 (5 fold over fructose)	λex = 365 nm, λem = 420 nm, in50% MeOH/aqueous phosphate buffer, pH = 7.4
28a	glucose	1472 M−1 (43 fold over fructose)	λex = 370 nm, λem = 430 nm, in aqueous phosphate buffer, pH = 7.4
30	ribose	2400 M−1 (24 fold over fructose, 8 fold over galactose, and 12 fold over glucose)	λex = 565 nm, λem = 597 nm, in90% DMSO/phosphate buffer, pH = 7.4
34	D-mannitol	enantioselectivity (KR/KS) of 1:20000 in binding with D-mannitol	λex = 373 nm, λem = 421 nm, in52% CH3OH/aqueous buffer, pH = 8.3.
37	D-glucose	D-glucose (24800 ± 1200 M 1) to L-glucose (11900 ± 1600 M 1)	λex = 285 nm, λem = 480 nm, in50% CH3OH/water, pH =11.7
44	heparin	Heparin (3 × 107 M−1) over dextran (3 × 103 M−1), hyaluronic acid (2 × 103 M−1), chondroitin (4 × 106 M−1), and ovalbumine (1 × 106 M−1).	λem = 510 nm, in HEPES buffer