Table 2: Langmuir isotherm parameters for RNA, DNA, and ssDNA binding by unwashed sorbents.


RNA DNA ssDNA

Material α (ng/ μg · μg) k (ng −1) × 10 −3 Chi 2 St. Error α (ng/ μg · μg) k (ng −1) × 10 −3 Chi 2 St. Error α (ng/ μg · μg) k (ng −1) × 10 −3 Chi 2 St. Error
Unwashed Sorbents
NS* 410 550
N5 165 46.7 381 3.45 1530 38.3 105 4.81 75.7 4.72 136 1.39
P5 204 6.91 691 3.91 9.14 0.661 187 6.34 62.6 0.512 25.7 0.607
P10 104 7.92 552 3.50 9.26 0.698 561 9.71 38.2 0.478 45.9 0.810
CuEDA 690 6.03 2920 7.09 118 8.53 852 4.33 147 1.12 407 2.41
ZnEDA 301 1.95 234 2.26 55.8 4.14 422 10.5 104 0.707 75.4 1.14
MM5 97.6 17.7 200 2.08 9.13 0.614 110 1.33 57.6 177 200 2.08
HX2M2B 375 8.18 1421 4.95 114 8.27 60.3 3.62 256 1.78 327 2.67
CF2M2B 571 9.18 3580 8.83 26.2 1.91 118 1.60 158 1.06 141 1.83
DEN 279 31.8 960 5.73 N/A† N/A N/A N/A 94.8 0.563 634 3.71
ChTS 255 42.9 1520 5.75 N/A† N/A N/A N/A 7.43 0.467 5.64 0.284
Washed Sorbents
N5 300 6.13 124 1.64 61.4 4.48 1315 8.48 157 1.10 41.7 0.952
CuEDA 167 30.2 924 3.60 60.6 4.41 905 6.17 N/A† N/A N/A N/A
HX2M2B 220 82.1 247 2.06 8.78 0563 344 11.1 113 0.728 16.4 0.604
DEN 165 202 1260 3.35 184 13.3 213 6.81 176 1.22 90.4 1.43

*NS is the base sorbent from previous work [ 58 ].
†Insufficient data for generation of an isotherm; DEN ∼100% bound, ChTS ∼0% bound, CuEDA.
∼0% bound