| 光谱学与光谱分析 |
|
|
|
|
|
| Infrared Spectroscopy Investigation on Conformational Change of Silk Fiber Induced by Gaseous Organic Acids Existing in Museum |
| LUO Xi-yun1, 2, MA Wen-ting1, WU Jin-qing1, GENG Jin-pei3, LI Xiao-yu3, LI Xiu-yong3, DU Yi-ping1* |
1. Shanghai Key Laboratory of Functional Materials Chemistry and Research Centre of Analysis and Test, East China University of Science and Technology, Shanghai 200237, China
2. Conservation & Archaeology Laboratory, Shanghai Museum, Shanghai 200050, China
3. Entry-Exit Inspection and Quarantine Bureau of Yantai Technology Center, Yantai 264000, China |
|
|
|
|
Abstract Study on the impact of pollutants on cultural materials in storing or displaying micro-environment in museum is considered as very important for the preservation of cultural relics and its aging prevention. This paper applied the Fourier transform infrared (attenuated total reflection) technique to assess silk structural changes under volatile organic acids (formic acid/acetic acid)，which usually come from decorative materials emission and commonly exist in the surface or around cultural materials. The focus of this work was on investigating the changes of peptide bond in the area of amide Ⅰ-amide Ⅲ , as well as the peptide chains (GlyAla)n characteristic region. The structural and conformational changes in silk fiber treated with gaseous formic and acetic acid were assessed. The results indicate that both the gaseous acids can weaken the intermolecular hydrogen bond in fiber peptide, based on the spectral changes in the increased intensity of amide Ⅰ (1 617 cm-1) , the narrowing amide Ⅱ peak (1 515 cm-1), the increased intensity of random coil conformation in amide Ⅲ peak (1 230 cm-1), and the decreased fiber crystallinity as well. The obvious secondary structural conformation occurred when the concentration of gaseous formic acid reached 8.1 mg·m-3 in simulated environment. The conformational transformation was supported by the observation of the rapidly reduced random coil conformation, the increased short peptide chains (GlyAla)n with β-sheet conformation characteristic peak (1 000, 975 cm-1), and the enhanced fiber crystallinity degree as well. In contrast, gaseous acetic acid has less impact on the amide Ⅰ and amide Ⅱ bond based on the spectral changes, but it did promote random coil conformation and decreased fiber crystallinity. This work also provides a potential application of the infrared spectroscopy in non-destructive investigation of silk in-situ.
|
|
Received: 2011-08-29
Accepted: 2011-11-28
|
|
|
|
Corresponding Authors:
DU Yi-ping
E-mail: yipingdu@ecust.edu.cn
|
|
[1] Weschler C J. Atmos. Environ., 2009, 43: 153.
[2] Weschler C J, Nazaroff W W. Atmos. Environ., 2008, 42: 9018.
[3] Glisovic A, Salditt T. Appl. Phys., 2007, 87: 63.
[4] Andreas Barth. Biochim. Biophys. Acta, 2007, 1767: 1073.
[5] Shao J Z, Zheng J H, LIU J Q, et al. J. Appl. Polym. Sci., 2005, 96: 1999.
[6] Taddei P, Monti P. Biopolymers, 2005, 78: 249.
[7] Kweon H Y, Ha H C, Um I C, et al. J. Appl. Polym. Sci., 2001，80: 928.
[8] CHEN Xin, SHAO Zheng-zhong, Knight D P, et al(陈 新, 邵正中, Knight D P, 等). Acta Chimica Sinica(化学学报), 2002, 60: 2203.
|
| [1] |
CHENG Jia-wei1, 2，LIU Xin-xing1, 2*，ZHANG Juan1, 2. Application of Infrared Spectroscopy in Exploration of Mineral Deposits: A Review[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 15-21. |
| [2] |
LI Jie, ZHOU Qu*, JIA Lu-fen, CUI Xiao-sen. Comparative Study on Detection Methods of Furfural in Transformer Oil Based on IR and Raman Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 125-133. |
| [3] |
GAO Feng1, 2, XING Ya-ge3, 4, LUO Hua-ping1, 2, ZHANG Yuan-hua3, 4, GUO Ling3, 4*. Nondestructive Identification of Apricot Varieties Based on Visible/Near Infrared Spectroscopy and Chemometrics Methods[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 44-51. |
| [4] |
LIU Jia, ZHENG Ya-long, WANG Cheng-bo, YIN Zuo-wei*, PAN Shao-kui. Spectra Characterization of Diaspore-Sapphire From Hotan, Xinjiang[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 176-180. |
| [5] |
BAO Hao1, 2，ZHANG Yan1, 2*. Research on Spectral Feature Band Selection Model Based on Improved Harris Hawk Optimization Algorithm[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 148-157. |
| [6] |
YANG Cheng-en1, 2, LI Meng3, LU Qiu-yu2, WANG Jin-ling4, LI Yu-ting2*, SU Ling1*. Fast Prediction of Flavone and Polysaccharide Contents in
Aronia Melanocarpa by FTIR and ELM[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 62-68. |
| [7] |
GUO Ya-fei1, CAO Qiang1, YE Lei-lei1, ZHANG Cheng-yuan1, KOU Ren-bo1, WANG Jun-mei1, GUO Mei1, 2*. Double Index Sequence Analysis of FTIR and Anti-Inflammatory Spectrum Effect Relationship of Rheum Tanguticum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2024, 44(01): 188-196. |
| [8] |
SUN Wei-ji1, LIU Lang1, 2*, HOU Dong-zhuang3, QIU Hua-fu1, 2, TU Bing-bing4, XIN Jie1. Experimental Study on Physicochemical Properties and Hydration Activity of Modified Magnesium Slag[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3877-3884. |
| [9] |
LI Xiao-dian1, TANG Nian1, ZHANG Man-jun1, SUN Dong-wei1, HE Shu-kai2, WANG Xian-zhong2, 3, ZENG Xiao-zhe2*, WANG Xing-hui2, LIU Xi-ya2. Infrared Spectral Characteristics and Mixing Ratio Detection Method of a New Environmentally Friendly Insulating Gas C5-PFK[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3794-3801. |
| [10] |
HU Cai-ping1, HE Cheng-yu2, KONG Li-wei3, ZHU You-you3*, WU Bin4, ZHOU Hao-xiang3, SUN Jun2. Identification of Tea Based on Near-Infrared Spectra and Fuzzy Linear Discriminant QR Analysis[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3802-3805. |
| [11] |
LIU Xin-peng1, SUN Xiang-hong2, QIN Yu-hua1*, ZHANG Min1, GONG Hui-li3. Research on t-SNE Similarity Measurement Method Based on Wasserstein Divergence[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3806-3812. |
| [12] |
BAI Xue-bing1, 2, SONG Chang-ze1, ZHANG Qian-wei1, DAI Bin-xiu1, JIN Guo-jie1, 2, LIU Wen-zheng1, TAO Yong-sheng1, 2*. Rapid and Nndestructive Dagnosis Mthod for Posphate Dficiency in “Cabernet Sauvignon” Gape Laves by Vis/NIR Sectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3719-3725. |
| [13] |
WANG Qi-biao1, HE Yu-kai1, LUO Yu-shi1, WANG Shu-jun1, XIE Bo2, DENG Chao2*, LIU Yong3, TUO Xian-guo3. Study on Analysis Method of Distiller's Grains Acidity Based on
Convolutional Neural Network and Near Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3726-3731. |
| [14] |
DANG Rui, GAO Zi-ang, ZHANG Tong, WANG Jia-xing. Lighting Damage Model of Silk Cultural Relics in Museum Collections Based on Infrared Spectrum[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(12): 3930-3936. |
| [15] |
LUO Li, WANG Jing-yi, XU Zhao-jun, NA Bin*. Geographic Origin Discrimination of Wood Using NIR Spectroscopy
Combined With Machine Learning Techniques[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2023, 43(11): 3372-3379. |
|
|
|
|
