Study on the pH-Sensitive Secondary Structure of gamma-PGA Embedded with Magnetite Nanoparticles
文献类型：期刊论文
| 作者 | Zhang Ju-hua1,2; Xing Jian-min1; Jiang Yang-yang1,2; Gao Hong-shuai1,2; Liu Hui-zhou1 |
| 刊名 | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 29期号:8页码:2148-2151 |
| 关键词 | FTIR Poly gamma-glutamic acid Magnetic nanospheres pH Zeta potential |
| ISSN号 | 1000-0593 |
| 通讯作者 | Xing, JM |
| 英文摘要 | The conformational transition of poly gamma-glutamic acid (gamma-PGA) embedded with magnetite nanoparticles under various pH conditions was investigated by Fourier transform infrared spectroscopy (FTIR). The secondary structure content was determined through the analysis of amide I bands of Fourier deconvolution spectra, secondary derivative spectra and the Gaussian curve fitting of the original infrared spectra. The results showed that the conformation of the gamma-PGA was affected by solution pH. The total contents of beta-sheet and beta-turn were higher than 65%, while alpha-helix and random coil were low. The content of beta-turn increased with increasing pH, while the beta-sheet decreased. Additionally, the zeta potential results showed that the pH-sensitive secondary structure gamma-PGA had influence on the stability of suspension of magnetic gamma-PGA nanospheres. The minimum value of zeta potential (-35. 4 mV) was obtained at pH 10. 2. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Spectroscopy |
| 研究领域[WOS] | Spectroscopy |
| 关键词[WOS] | ALPHA-AMINO-ACIDS ; L-GLUTAMIC ACID ; AQUEOUS-SOLUTIONS ; INFRARED-SPECTROSCOPY ; BETA-TURNS ; PEPTIDES ; POLYPEPTIDES ; PROTEINS ; CONFORMATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269998800031 |
| 公开日期 | 2013-12-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/6628]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Ju-hua,Xing Jian-min,Jiang Yang-yang,et al. Study on the pH-Sensitive Secondary Structure of gamma-PGA Embedded with Magnetite Nanoparticles[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2009,29(8):2148-2151. |
| APA | Zhang Ju-hua,Xing Jian-min,Jiang Yang-yang,Gao Hong-shuai,&Liu Hui-zhou.(2009).Study on the pH-Sensitive Secondary Structure of gamma-PGA Embedded with Magnetite Nanoparticles.SPECTROSCOPY AND SPECTRAL ANALYSIS,29(8),2148-2151. |
| MLA | Zhang Ju-hua,et al."Study on the pH-Sensitive Secondary Structure of gamma-PGA Embedded with Magnetite Nanoparticles".SPECTROSCOPY AND SPECTRAL ANALYSIS 29.8(2009):2148-2151. |
入库方式： OAI收割
来源：过程工程研究所
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