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Table 2 Effect of drying microarray with helium.

From: Efficiency, error and yield in light-directed maskless synthesis of DNA microarrays

Array 1

Helium before capping (s)

Helium after capping (s)

Coupling efficiency (%)

A

30

30

99.2

B

-

-

95.0

C

-

-

95.0

D

30

30

99.2

Array 2*

   

A

30

30

98.4

B

30

30

98.4

C

-

-

94.1

D

-

-

93.8

Array 3

   

A

15

-

95.6

B

-

30

98.6

C

30

-

95.7

D

30

30

98.4

Array 4

   

A

30

30

99.3

B

-

10

99.0

C

-

30

99.3

D

-

60

99.3

  1. Synthesis parameters: 12 J/cm2, 32 pulses exposure solvent*, 60 seconds coupling with 0.03 M NPPOC-T and 0.25 M DCI, and 120 seconds capping.
  2. *Each sub-experiment of Array 2 uses a different number of pulses of exposure solvent during the 12 J/cm2 exposure: (A) 32, (B) 60, (C) 60, and (D) 120.