Table 1.

Average lattice parameters and standard deviations (in Å) of mesophases at 25 ± 1 °C in samples prepared and analysed on-chip and in samples prepared using coupled syringes and analysed in glass capillaries. Chips A–D are the same as those in Figure 5.

Sample composition
	MO/5% βOG 55:45 v/v			MO/6.7% βOG 55:45 v/v			MO/8.3% βOG 55:45 v/v			MO/10% βOG 55:45 v/v
Detergent solutions and mesophases formulated on-chipa
	Pn3m	Ia3d	Lαb	Pn3m	Ia3d	Lαb	Pn3m	Ia3d	Lαb	Pn3m	Ia3d	Lαb
Chip A		182 ± 2			185 ± 3	49.2	136 ± 1	215 ± 12	49.9	144 ± 3		49.8
Chip B		187 ± 3	49.1		183 ± 6	48.9	136 ± 1	190	49.7	146 ± 2		49.7
Chip C		181 ± 2	48.9		198 ± 1	49.5	143 ± 3	191	49.9	144 ± 2		49.7
Chip D		179 ± 1			193 ± 2	49.8	141 ± 2	215 ± 3	50.1	145 ± 2		50.0
Detergent solutions formulated off-chip, mesophases formulated on-chipc
Chip E		181 ± 2	48.6
Chip F		182 ± 3	48.9
Chip G										148 ± 3		49.8
Chip H										148 ± 8		49.7
Samples prepared in coupled syringes and analyzed in glass capillaries
CS-1		177 ± 2	48.4
CS-2										173 ± 1		49.9

^aLattice parameters were averaged for each of the four samples on-chip

^bStandard deviations of lattice parameters for Lα phases were <0.5 Å in all cases.

^cFour identical samples were prepared on a single chip. The reported value is the average for the four samples.