Controllable aggregation and reversible ph sensitivity of aunps regulated by carboxymethyl cellulose
文献类型：期刊论文
| 作者 | Tan, Junjun1,2; Liu, Ruigang1; Wang, Wen1,2; Liu, Wenyong1,2; Tian, Ye1,2; Wu, Min3; Huang, Yong1,3,4 |
| 刊名 | Langmuir
 |
| 出版日期 | 2010-02-02 |
| 卷号 | 26期号:3页码:2093-2098 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la902593e |
| 通讯作者 | Liu, ruigang(rgliu@iccas.ac.cn) |
| 英文摘要 | A ph-sensitive gold nanoparticle/cysteamine/carboxymethyl cellulose (au-ca/cmc) dispersion system was prepared by it simple approach. gold nanoparticles (aunps) were first synthesized by directly reducing chloroauric acid (haucl(4)) with sodium carboxymethyl cellulose (cmc). then the aunps were decorated by in electrostatic compound of cysteamine hydrochloride (ca) and sodium carboxymethyl cellulose (cmc) through ligand exchange to get the assembly of au-ca/cmc. the au-ca/cmc dispersion system exhibits strongly reversible ph-responsive behavior with the aggregation of aunps caused by the combined action of the chain conformation change of cmc and electrostatic interactions between ca and cmc at different ph values. finally, the reversible aggregation mechanism of aunps in the au-ca/cmc dispersion system has been investigated by transmission electron microscopy (tem) and ultraviolet-visible spectroscopy (uv-vis spectroscopy). this study provides it new method to fabricate a stimuli-responsive system free from complicated organic synthesis without using a toxic reducing agent. |
| WOS关键词 | GOLD NANOPARTICLES ; BIOLOGICAL APPLICATIONS ; OPTICAL-PROPERTIES ; CONTROLLED-RELEASE ; AU NANOPARTICLES ; POLYELECTROLYTE ; TEMPERATURE ; HYDROGELS ; NANOCOMPOSITES ; FABRICATION |
| WOS研究方向 | Chemistry ; Materials Science |
| WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000273831700111 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2408584 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu, Ruigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Tech Inst Phys & Chem, Natl Engn Res Ctr Plast, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Chem, Lab Cellulose & Lignocellulos Chem, Guangzhou 510650, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Junjun,Liu, Ruigang,Wang, Wen,et al. Controllable aggregation and reversible ph sensitivity of aunps regulated by carboxymethyl cellulose[J]. Langmuir,2010,26(3):2093-2098. |
| APA | Tan, Junjun.,Liu, Ruigang.,Wang, Wen.,Liu, Wenyong.,Tian, Ye.,...&Huang, Yong.(2010).Controllable aggregation and reversible ph sensitivity of aunps regulated by carboxymethyl cellulose.Langmuir,26(3),2093-2098. |
| MLA | Tan, Junjun,et al."Controllable aggregation and reversible ph sensitivity of aunps regulated by carboxymethyl cellulose".Langmuir 26.3(2010):2093-2098. |
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来源：中国科学院大学
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