ICCAS OpenIR
Photophysical properties of polyphenylphenyl compounds in aqueous solutions and application of their nanoparticles for nucleobase sensing
Xu, Xinjun1; Chen, Shiyan2; Li, Lidong1; Yu, Gui2; Di, Chong'an2; Liu, Yunqi2
2008
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume18Issue:22Pages:2555-2561
AbstractAbnormal 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.
DOI10.1039/b801984c
Indexed BySCI
Language英语
WOS IDWOS:000256073500005
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63932
Collection中国科学院化学研究所
Corresponding AuthorLi, Lidong
Affiliation1.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
Recommended Citation
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.
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