Spectroscopy and Spectral Analysis, Volume. 41, Issue 9, 2782(2021)
Interaction and Thermal Stability of Oxidized Carboxymethyl Cellulose/Collagen Based on Two-Dimensional Infrared Spectroscopy
Figures & Tables(8)
Fig. 2. FITR spectra (a) and enlarge spectra (b) of collagen cross-linked with OCMC
Fig. 3. 2D synchronous (a) and asynchronous (b) spectra of collagens cross-linked by OCMC
Fig. 4. Temperature-dependent infrared spectra and enlarge spectra of native collagen (a, b) and cross-linked collagen (c, d)
Fig. 5. Temperature-dependent 2D synchronous and asynchronous infrared spectra of native (a, b) and cross-linked collagen (c, d)
Table 1. Cross-peaks intensities and the response order of cross-linked collagens
View tableView in ArticleTable 1. Cross-peaks intensities and the response order of cross-linked collagens
序号 Φ(ν1, ν2) Ψ(ν1, ν2) 响应顺序 1 Φ(1 730, 1 610)>0 Ψ(1 730, 1 610)>0 1 730 cm-1先于1 610 cm-1 2 Φ(1 730, 1 435)>0 Ψ(1 730, 1 435)<0 1 435 cm-1先于1 730 cm-1 3 Φ(1 500, 1 320)>0 Ψ(1 500, 1 320)>0 1 500 cm-1先于1 320 cm-1 4 Φ(1 435, 1 236)>0 Ψ(1 435, 1 236)<0 1 236 cm-1先于1 435 cm-1 5 Φ(1 320, 1 236)>0 Ψ(1 320, 1 236)>0 1 320 cm-1先于1 236 cm-1 1 500 cm-1>1 320 cm-1>1 236 cm-1>1 435 cm-1>1 730 cm-1>1 610 cm-1
Table 2.
AⅢ/A 1 455 values of native and cross-linked collagens at various temperaturesView tableView in ArticleTable 2.
AⅢ/A 1 455 values of native and cross-linked collagens at various temperatures样品 AⅢ/A1 455 25 ℃ 35 ℃ 45 ℃ 55 ℃ 65 ℃ 75 ℃ 95 ℃ 105 ℃ 115 ℃ 125 ℃ C0 0.980 1.012 0.950 0.886 0.882 0.878 0.874 0.771 0.667 0.663 C5 1.016 1.049 0.951 0.900 0.885 0.870 0.881 0.875 0.858 0.845
Table 3. Cross-peaks intensities and the response order of native and cross-linked collagens
View tableView in ArticleTable 3. Cross-peaks intensities and the response order of native and cross-linked collagens
样品 序号 Φ(ν1, ν2) Ψ(ν1, ν2) 响应顺序 胶原 1 Φ(1 655, 1 555)>0 Ψ(1 655, 1 555)~0 无法判断 2 Φ(1 655, 1 455)>0 Ψ(1 655, 1 455)>0 1 655 cm-1先于1 455 cm-1 3 Φ(1 655, 1 240)>0 Ψ(1 655, 1 240)<0 1 240 cm-1先于1 655 cm-1 4 Φ(1 555, 1 455)>0 Ψ(1 555, 1 455)>0 1 555 cm-1先于1 455 cm-1 5 Φ(1 555, 1 240)>0 Ψ(1 555, 1 240)<0 1 240 cm-1先于1 555 cm-1 6 Φ(1 500, 1 240)<0 Ψ(1 500, 1 240)<0 1 500 cm-1先于1 240 cm-1 改性胶原 1 Φ(1 730, 1 655)<0 Ψ(1 730, 1 755)<0 1 730 cm-1先于1 655 cm-1 2 Φ(1 730, 1 320)>0 Ψ(1 730, 1 320)<0 1 320 cm-1先于1 730 cm-1 3 Φ(1 655, 1 555)>0 Ψ(1 655, 1 555)~0 无法判断 4 Φ(1 610, 1 500)>0 Ψ(1 610, 1 500)>0 1 610 cm-1先于1 500 cm-1 5 Φ(1 500, 1 435)>0 Ψ(1 500, 1 435)>0 1 500 cm-1先于1 435 cm-1 6 Φ(1 435, 1 240)<0 Ψ(1 435, 1 240)<0 1 435 cm-1先于1 240 cm-1 7 Φ(1 320, 1 240)<0 Ψ(1 320, 1 240)>0 1 240 cm-1先于1 320 cm-1 胶原: 1 500 cm-1>1 240 cm-1>1 655 cm-1, 1 555 cm-1>1 455 cm-1 改性胶原: 1 610 cm-1>1 500 cm-1>1 435 cm-1>1 240 cm-1>1 320 cm-1>1 730 cm-1>1 655, 1 555 cm-1
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Zhen-hua TIAN, Jing-xuan HE, Ying WANG, Lian DUAN, Cong-hu LI. Interaction and Thermal Stability of Oxidized Carboxymethyl Cellulose/Collagen Based on Two-Dimensional Infrared Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2782
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Category: Research Articles
Received: Dec. 21, 2020
Accepted: --
Published Online: Oct. 29, 2021
The Author Email: TIAN Zhen-hua (tian_amb@163.com)
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