Photophysical properties of polyphenylphenyl compounds in aqueous solutions and application of their nanoparticles for nucleobase sensing
文献类型：期刊论文
| 作者 | Xu, Xinjun1; Chen, Shiyan2; Li, Lidong1; Yu, Gui2; Di, Chong'an2; Liu, Yunqi2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2008 |
| 卷号 | 18期号:22页码:2555-2561 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/b801984c |
| 英文摘要 | Abnormal photoluminescent properties of polyphenylphenyl compounds 6,7-dicyano-2,3-di-[4-( 2,3,4,5-tetraphenylphenyl)phenyl] quinoxaline (CPQ) and 6,7-dimethyl-2,3-di-(4-(2,3,4, 5-tetraphenylphenyl) phenyl) quinoxaline (MPQ) in aqueous solutions have been investigated. Photoluminescent emissions of CPQ and MPQ in tetrahydrofuran (THF)-water mixtures do not change monotonously with increasing their effective concentration in solution. This phenomenon is different from both aggregation-induced emission quenching and aggregation-induced emission enhancement, and can be ascribed to the results of combinational effects of intramolecular rotation, intermolecular hydrogen bonds, and solvent viscosity and hydration. We also observed that organic nanoparticles of CPQ and MPQ are formed in the aqueous solutions. Based on detection of the fluorescence of CPQ nanoparticles in aqueous solutions when introducing nucleobases, we report for the first time the application of organic nanoparticles for nucleobase sensing and found that CPQ nanoparticles can recognize the nucleobases with a sensitivity of guanine > adenine > thymine >= cytosine. These findings elucidate the photoluminescent behavior of polyphenylphenyl compounds in aqueous solutions and provide an approach to apply fluorescent organic nanoparticles for biosensing instead of metal and inorganic nanoparticles. |
| 语种 | 英语 |
| WOS记录号 | WOS:000256073500005 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/63931]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Lidong |
| 作者单位 | 1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xinjun,Chen, Shiyan,Li, Lidong,et al. Photophysical properties of polyphenylphenyl compounds in aqueous solutions and application of their nanoparticles for nucleobase sensing[J]. JOURNAL OF MATERIALS CHEMISTRY,2008,18(22):2555-2561. |
| APA | Xu, Xinjun,Chen, Shiyan,Li, Lidong,Yu, Gui,Di, Chong'an,&Liu, Yunqi.(2008).Photophysical properties of polyphenylphenyl compounds in aqueous solutions and application of their nanoparticles for nucleobase sensing.JOURNAL OF MATERIALS CHEMISTRY,18(22),2555-2561. |
| MLA | Xu, Xinjun,et al."Photophysical properties of polyphenylphenyl compounds in aqueous solutions and application of their nanoparticles for nucleobase sensing".JOURNAL OF MATERIALS CHEMISTRY 18.22(2008):2555-2561. |
入库方式： OAI收割
来源：化学研究所
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