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Table 1 FTIR spectrum assignments

From: Biocompatible ι-carrageenan-γ-maghemite nanocomposite for biomedical applications – synthesis, characterization and in vitro anticancer efficacy

Functional groups

Wavelength (cm −1 ) of corresponding functional groups ( ι -car)

 

ι -car- γ - Fe 2 O 3 composite

Hydroxyl

3000 - 3600

3451

-3364

C-H stretch

2900 - 2700

2916

-2934

Ester sulfate

1220 - 1260

1260

-1259

3,6 anhydrogalactose

928 - 933

894-

917

G4S

840 - 850

848-

846

3,6 anhydrogalactose – 2- sulfate

800 - 805

804-

816

Fe –O stretch

500 - 400

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417