| Study on the pH-Sensitive Secondary Structure of gamma-PGA Embedded with Magnetite Nanoparticles | |
| Zhang Ju-hua1,2; Xing Jian-min1; Jiang Yang-yang1,2; Gao Hong-shuai1,2; Liu Hui-zhou1; Xing, JM | |
| 2009-08-01 | |
| Source Publication | SPECTROSCOPY AND SPECTRAL ANALYSIS
 |
| ISSN | 1000-0593 |
| Volume | 29Issue:8Pages:2148-2151 |
| Abstract | 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. |
| Keyword | Ftir Poly Gamma-glutamic Acid Magnetic Nanospheres Ph Zeta Potential |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.3964/j.issn.1000-0593(2009)08-2148-04 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ALPHA-AMINO-ACIDS ; L-GLUTAMIC ACID ; AQUEOUS-SOLUTIONS ; INFRARED-SPECTROSCOPY ; BETA-TURNS ; PEPTIDES ; POLYPEPTIDES ; PROTEINS ; CONFORMATION |
| WOS Research Area | Spectroscopy |
| WOS Subject | Spectroscopy |
| WOS ID | WOS:000269998800031 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6628 |
| Collection | 湿法冶金清洁生产技术国家工程实验室 |
| Corresponding Author | Xing, JM |
| Affiliation | 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 |
| Recommended Citation 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,&Xing, JM.(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. |
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| File Name/Size | DocType | Version | Access | License | ||
| 20131216-13-复件 BJ012（359KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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