DICP OpenIR
A polyoxometalate-based supramolecular chemosensor for rapid detection of hydrogen sulfide with dual signals
Guo, Yongxian1; Gong, Yanjun1; Qi, Lubin1; Gao, Yan'an2; Yu, Li1
KeywordPolyoxometalate Supramolecular Chemosensor Rapid Detection Hydrogen Sulfide Dual Signals
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
2017
ISSN0021-9797
DOI10.1016/j.jcis.2016.09.047
Volume485Pages:280-287
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical
WOS Research AreaChemistry
WOS KeywordRATIOMETRIC FLUORESCENT-PROBE ; OPTICAL-LIMITING PROPERTIES ; LIVING CELLS ; HOLLOW SPHERES ; H2S ; CUS ; SENSOR ; FILMS ; GAS
AbstractHydrogen sulfide (H2S) has been verified as an important biological mediator in human physiological activities, but its rapid and accurate detection is remaining a challenge. Based on our early work, Eu-containing polyoxometalate/ionic liquid-type gemini surfactant hybrid nanoparticles fabricated by EuW10O36.32H(2)O (Eu-POM) and 1,2-bis(3-hexadecylimidazolium-1-yl) ethane bromide ([C-16-2-C(16)im]Br-2) via ionic self-assembly (ISA) strategy, we modified the hybrids with copper (II) ion and used them as a novel turn-off supramolecular fluorescence probe for H2S immediate response. Although copper (II) ions can cause decrease of the fluorescence intensity, the probe with moderate amount of copper (II) still has a high performance in emission property. The copper (II) ion-modified supramolecular sensor (CSS) shows dual signals in the fluorescence intensity and absorbance for H2S detection, and the detection limit is about 1.25 mu M. Furthermore, CSS displays high selectivity for H2S in the presence of other anions and species (e.g. Cl-, Br-, I-, SO42-, SO32-, S2O32-, AC(-), H2O2, HCO3-, L-cysteine, homocysteine and L-glutathione), and also have potential for preferential imaging in vivo. Besides, the fluorescence quenching mechanism of CSS in the presence of H2S was explored. CuS generated by the reaction between Cu2+ and H2S was testified to act as a quencher, and the nonradiative resonance energy transfer mechanism was speculated to be responsible for fluorescence quenching. It is anticipated that the as-prepared CSS will be used as an efficient chemosensor for the rapid detection of H2S, which is critical for the diagnosis of some diseases, e.g. Alzhermer's disease, Down's syndrome, and diabetes, etc. (C) 2016 Elsevier Inc. All rights reserved.
Language英语
WOS IDWOS:000385900400034
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169933
Collection中国科学院大连化学物理研究所
Corresponding AuthorYu, Li
Affiliation1.Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Guo, Yongxian,Gong, Yanjun,Qi, Lubin,et al. A polyoxometalate-based supramolecular chemosensor for rapid detection of hydrogen sulfide with dual signals[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,485:280-287.
APA Guo, Yongxian,Gong, Yanjun,Qi, Lubin,Gao, Yan'an,&Yu, Li.(2017).A polyoxometalate-based supramolecular chemosensor for rapid detection of hydrogen sulfide with dual signals.JOURNAL OF COLLOID AND INTERFACE SCIENCE,485,280-287.
MLA Guo, Yongxian,et al."A polyoxometalate-based supramolecular chemosensor for rapid detection of hydrogen sulfide with dual signals".JOURNAL OF COLLOID AND INTERFACE SCIENCE 485(2017):280-287.
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