Light-Triggered Self-Assembly of a Spiropyran-Functionalized Dendron into Nano-/Micrometer-Sized Particles and Photoresponsive Organogel with Switchable Fluorescence
文献类型：期刊论文
| 作者 | Chen, Qun1,2; Feng, Yu1,2; Zhang, Deqing1; Zhang, Guanxin1; Fan, Qinghua1; Sun, Shuna1; Zhu, Daoben1 |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2010-01-08 |
| 卷号 | 20期号:1页码:36-42 |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.200901358 |
| 英文摘要 | The synthesis, self-assembly, and spectroscopic investigation of spiropyran (SP)-functionalized dendron 1 are reported. Under UV light irradiation assembly of 1 into nano-/microparticles occurs due to the transformation of the closed form of SP into the open merocyanine (MC) form. The formation of these nano-/microparticles is confirmed by transmission electron microscopy (TEM) and dynamic light scattering (DLS) experiments in addition to the confocal laser scanning microscopy (CLSM) measurements. These nano-/microparticles exhibit relatively strong red emission. It is interesting to note that the direct cooling of the toluene/benzene solution of 1 to 0 degrees C lead to gel formation. Multivalent pi-pi interactions due to the dendron 1 may be the driving-force for the gelation. The UV light irradiation cannot destroy the gel phase, and in fact, the gel-gel transition is successfully realized. The purple blue gel exhibits relatively strong red fluorescence; moreover, the fluorescence can be reversibly switched by alternating UV and visible light irradiation. The results clearly indicate that the MC form after aggregation becomes more stable and fluorescent. |
| 语种 | 英语 |
| WOS记录号 | WOS:000274044900004 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71135]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, Qun |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Labs Organ Solids & Mol Recognit & Funct, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Qun,Feng, Yu,Zhang, Deqing,et al. Light-Triggered Self-Assembly of a Spiropyran-Functionalized Dendron into Nano-/Micrometer-Sized Particles and Photoresponsive Organogel with Switchable Fluorescence[J]. ADVANCED FUNCTIONAL MATERIALS,2010,20(1):36-42. |
| APA | Chen, Qun.,Feng, Yu.,Zhang, Deqing.,Zhang, Guanxin.,Fan, Qinghua.,...&Zhu, Daoben.(2010).Light-Triggered Self-Assembly of a Spiropyran-Functionalized Dendron into Nano-/Micrometer-Sized Particles and Photoresponsive Organogel with Switchable Fluorescence.ADVANCED FUNCTIONAL MATERIALS,20(1),36-42. |
| MLA | Chen, Qun,et al."Light-Triggered Self-Assembly of a Spiropyran-Functionalized Dendron into Nano-/Micrometer-Sized Particles and Photoresponsive Organogel with Switchable Fluorescence".ADVANCED FUNCTIONAL MATERIALS 20.1(2010):36-42. |
入库方式： OAI收割
来源：化学研究所
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