Assignment

Wave number

(cm⁻¹)

Aurein

Aurein-SPM

Aurein-CHOL

Aurein-DOPC

Aurein-DPPC

OH/NH

3400 - 3100

3280

3283

3278

3280

3290

C-H

3100 - 2800

3059:2955

2920:2852

2942

2920:2855

2919:2854

C=O

1800 - 1700

1723

1731

1728

Amide I

1700 - 1600

1648

1651

1646

1654

1652

Amide II

1600 - 1500

1535

1537

1534

1540

1537

Amide III

1350 - 1250

1274

Phosphate

1260 - 1050

1194

1198

1184

${\text{NH}}_4^{+}$

1000 - 700

970:702

970

972:706