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作者：Dezhi Qin . Li Zhang . Xian Du . Yabo Wang . Qiuxia Zhang 文题：Simple and green synthesis of protein-conjugated CdS nanoparticles and spectroscopic study on the interaction between CdS and zein 期刊：J Nanopart Res 年卷：2016 18: 254 |
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quantum2007: 金币+10, ★★★★★最佳答案 2016-12-01 16:40:14
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Web of Science™ 第 1 页 (记录 1 -- 1) 上一页 (不活动) [ 1 ] 下一页 (不活动) 打印此页 第 1 条，共 1 条 标题: Simple and green synthesis of protein-conjugated CdS nanoparticles and spectroscopic study on the interaction between CdS and zein 作者: Qin, DZ (Qin, Dezhi); Zhang, L (Zhang, Li); Du, X (Du, Xian); Wang, YB (Wang, Yabo); Zhang, QX (Zhang, Qiuxia) 来源出版物: JOURNAL OF NANOPARTICLE RESEARCH 卷: 18 期: 9 文献号: 254 DOI: 10.1007/s11051-016-3568-x 出版年: AUG 29 2016 Web of Science 核心合集中的 "被引频次": 0 被引频次合计: 0 使用次数 (最近 180 天): 3 使用次数 (2013 年至今): 3 引用的参考文献数: 46 摘要: The present study demonstrates the role of zein molecules in synthesizing CdS nanoassemblies through protein-directed, green synthetic approach. Zein molecules can as capping ligand and stabilizing agent to regulate the nucleation and growth of CdS nanocrystals, and the obtained products are organic-inorganic nanocomposites. The analysis of surface charge and conductivity indicates that strong electrostatic force restricts mobility of ions, which creates a local supersaturation surrounding the binding sites of zein and reduces the activated energy of nucleation. The interaction between Cd2+/CdS and zein molecules was systematically investigated through spectroscopy techniques. Fourier transform infrared (FTIR) spectra were used to envisage the binding of the functional groups of zein with the surface of CdS nanoparticles. Ultraviolet visible (UV-Vis) and photoluminescence (PL) spectra results show that Cd2+/CdS might interact with the aromatic amino acids of protein molecules and change its chemical microenvironment. The quantum-confined effect of nanocrystals is confirmed by optical absorption spectrum due to the small size (3-5 nm) of CdS particles. The data of circular dichroism (CD) spectra indicate that the formation of CdS nanocrystals could lead to the conformational change of zein molecules. Moreover, the possible mechanism of CdS nanocrystals growth in zein solution was also discussed. The weak interactions such as Van der Waals, hydrophobic forces and hydrogen bonds in zein molecules should play a crucial factor in the self-assembly of small nanoparticles. 入藏号: WOS:000382752100001 语种: English 文献类型: Article 作者关键词: CdS; Zein; Nanocrystals; Biomimetic; Spectroscopy KeyWords Plus: SECONDARY STRUCTURE; GOLD NANOPARTICLES; BOVINE HEMOGLOBIN; FACILE SYNTHESIS; NANOCRYSTALS; NANOCOMPOSITES; ANTIBACTERIAL; NANOSPHERES; MAIZE; LIGHT 地址: [Qin, Dezhi; Zhang, Li; Du, Xian; Wang, Yabo; Zhang, Qiuxia] Pingdingshan Univ, Coll Chem & Environm Engn, Pingdingshan 467000, Peoples R China. 通讯作者地址: Qin, DZ (通讯作者),Pingdingshan Univ, Coll Chem & Environm Engn, Pingdingshan 467000, Peoples R China. 电子邮件地址: dezhiqin@163.com 出版商: SPRINGER 出版商地址: VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS Web of Science 类别: Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary 研究方向: Chemistry; Science & Technology - Other Topics; Materials Science IDS 号: DV2LN ISSN: 1388-0764 eISSN: 1572-896X 29 字符的来源出版物名称缩写: J NANOPART RES ISO 来源出版物缩写: J. Nanopart. Res. 来源出版物页码计数: 11 基金资助致谢: 基金资助机构 授权号 Key Project of Henan Province Higher Educational Science and Technology Program 15A150070 Nature Science Foundation of Pingdingshan University PDSU-QNJJ-2013003 This work was supported by the Key Project of Henan Province Higher Educational Science and Technology Program (15A150070) and the Nature Science Foundation of Pingdingshan University (PDSU-QNJJ-2013003). We also thank the referees for helpful comments. 关闭 Web of Science™ 第 1 页 (记录 1 -- 1) |
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