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. 2021 Mar 11;11:5763. doi: 10.1038/s41598-021-85050-7

Table 1.

Summary of peak positions, full-width-at-half-maximum (FWHM) values, and % relative areas of β-turn (underlined), α-helix (italicized), and β-sheet (bolded) structural motifs in the Amide I region of BSA absorbed on various HA/CHA microstructures and in control on lyophilized BSA.

Peak position (cm−1) FWHM (cm−1) Relative area (%) Peak Assignment
Long-needle (LN)
1686 29 4.0 β-turn
1659 42 19.3 α-helix
1635 48 29.4 β-sheet
Plate-like (PL)
1684 32 5.2 β-turn
1657 38 12.6 α-helix
1639 58 39.3 β-sheet
Flower-like (FW)
1686 30 4.2 β-turn
1654 47 36.2 α-helix
1627 59 19.8 β-sheet
Short-needle (SN)
1684 28 4.1 β-turn
1661 40 15.9 α-helix
1639 49 33.0 β-sheet
Lyophilized BSA
1686 30 4.7 β-turn
1657 43 21.4 α-helix
1636 50 27.3 β-sheet