Document Detail


Aggregation-induced emission: phenomenon, mechanism and applications.
MedLine Citation:
PMID:  19597589     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It is textbook knowledge that chromophore aggregation generally quenches light emission. In this feature article, we give an account on how we observed an opposite phenomenon termed aggregation-induced emission (AIE) and identified the restriction of intramolecular rotation as a main cause for the AIE effect. Based on the mechanistic understanding, we developed a series of new fluorescent and phosphorescent AIE systems with emission colours covering the entire visible spectral region and luminescence quantum yields up to unity. We explored high-tech applications of the AIE luminogens as, for example, fluorescence sensors (for explosive, ion, pH, temperature, viscosity, pressure, etc.), biological probes (for protein, DNA, RNA, sugar, phospholipid, etc.), immunoassay markers, PAGE visualization agents, polarized light emitters, monitors for layer-by-layer assembly, reporters for micelle formation, multistimuli-responsive nanomaterials, and active layers in the fabrication of organic light-emitting diodes.
Authors:
Yuning Hong; Jacky W Y Lam; Ben Zhong Tang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-13
Journal Detail:
Title:  Chemical communications (Cambridge, England)     Volume:  -     ISSN:  1364-548X     ISO Abbreviation:  Chem. Commun. (Camb.)     Publication Date:  2009 Aug 
Date Detail:
Created Date:  2009-07-14     Completed Date:  2009-10-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9610838     Medline TA:  Chem Commun (Camb)     Country:  England    
Other Details:
Languages:  eng     Pagination:  4332-53     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Nano Science and Technology Program, Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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MeSH Terms
Descriptor/Qualifier:
Alkynes / chemistry*
Fluorescent Dyes / chemistry*
Molecular Structure
Organic Chemicals / chemistry
Silicon Compounds / chemistry
Solutions / chemistry
Chemical
Reg. No./Substance:
0/1,2,3,4,5-hexaphenylsilole; 0/Alkynes; 0/Fluorescent Dyes; 0/Organic Chemicals; 0/Silicon Compounds; 0/Solutions

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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