Switching the light emission of (4-biphenylyl)phenyldibenzofulvene by morphological modulation: crystallization-induced emission enhancement

Dong, Yongqiang; Lam, Jacky W. Y.; Qin, Anjun; Li, Zhen; Sun, Jingzhi; Sung, Herman H. Y.; Williams, Ian D.; Tang, Ben Zhong

doi:10.1039/b613157c

Cited by 402 publications

(148 citation statements)

References 30 publications

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“…TTAPE can thus be induced to emit light by restricting its intramolecular rotations, which is the exact cause for the AIE effect of its TBEPE cousin (see earlier). [15,20] DNA probing: G1 is a 21-mer ssDNA molecule that mimics the human telomeric sequence. When the DNA molecules are added into a solution of TTAPE in a tris(hydroxymeth-A C H T U N G T R E N N U N G yl)aminomethane (Tris)-HCl buffer solution, the solution starts to luminesce (Figure 2 A).…”

Section: Resultsmentioning

confidence: 99%

Label‐Free Fluorescent Probing of G‐Quadruplex Formation and Real‐Time Monitoring of DNA Folding by a Quaternized Tetraphenylethene Salt with Aggregation‐Induced Emission Characteristics

Hong

Häußler

Lam

et al. 2008

Chemistry A European J

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268

164

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Biosensing processes such as molecular beacons require non-trivial effort to covalently label or mark biomolecules. We report here a label-free DNA assay system with a simple dye with aggregation-induced emission (AIE) characteristics as the fluorescent bioprobe. 1,1,2,2-Tetrakis[4-(2-bromoethoxy)phenyl]ethene is nonemissive in solution but becomes highly emissive when aggregated. This AIE effect is caused by restriction of intramolecular rotation, as verified by a large increase in the emission intensity by increasing viscosity and decreasing temperature of the aqueous buffer solution of 1,1,2,2-tetrakis[4-(2-triethylammonioethoxy)phenyl]ethene tetrabromide (TTAPE). When TTAPE is bound to a guanine-rich DNA strand (G1) via electrostatic attraction, its intramolecular rotation is restricted and its emission is turned on. When a competitive cation is added to the G1 solution, TTAPE is detached and its emission is turned off. TTAPE works as a sensitive poststaining agent for poly(acrylamide) gel electrophoresis (PAGE) visualization of G1. The dye is highly affinitive to a secondary structure of G1 called the G-quadruplex. The bathochromic shift involved in the G1 folding process allows spectral discrimination of the G-quadruplex from other DNA structures. The strong affinity of TTAPE dye to the G-quadruplex structure is associated with a geometric fit aided by the electrostatic attraction. The distinct AIE feature of TTAPE enables real-time monitoring of folding process of G1 in the absence of any pre-attached fluorogenic labels on the DNA strand. TTAPE can be used as a K+ ion biosensor because of its specificity to K+-induced and -stabilized quadruplex structure.

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Section: Resultsmentioning

confidence: 99%

Label‐Free Fluorescent Probing of G‐Quadruplex Formation and Real‐Time Monitoring of DNA Folding by a Quaternized Tetraphenylethene Salt with Aggregation‐Induced Emission Characteristics

Hong

Häußler

Lam

et al. 2008

Chemistry A European J

Self Cite

268

164

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“…[12] In this Communication, we report two trifluoromethyl (CF 3 )-substituted aromatic-amine compounds, diethyl-2,5-bis(4-(trifluoromethyl)phenylamino)terephthalate (AA-1) and diethyl-2,5-bis (3,5-bis(trifluoromethyl)phenylamino)terephthalate (AA-2), that display reversible thermally induced phase transformation accompanied by emission switching between different colors.…”

mentioning

confidence: 99%

Thermally Induced Reversible Phase Transformations Accompanied by Emission Switching Between Different Colors of Two Aromatic‐Amine Compounds

et al. 2009

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“…Tang et al originally presented CIE-active organic compounds. 122 It was suggested that the regulation of intermolecular interactions in solid state is very important to develop CIE properties, boron diiminates with high functionality have a high potential as CIEactive materials. Figure 13 shows a representative example of a CIE-active compound 4 evaluated with X-ray diffraction (XRD) patterns and PL properties in the amorphous state and the crystalline state.…”

Section: ¹1mentioning

confidence: 99%

Creative Synthesis of Organic–Inorganic Molecular Hybrid Materials

Gon

Tanaka

Chujo

2017

Bulletin of the Chemical Society of Japan

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This manuscript describes a series of our research based on the concept of an organicinorganic molecular hybrid material. Homogeneous organicinorganic hybridization is accomplished by mixing organic components and inorganic ones at a molecular level. Based on the strategy, a great number of hybrid materials have been synthesized and brand-new properties have been developed. Organicinorganic hybrid materials insure the realization of the collaboration of organic features and inorganic features. We recently suggested a new concept of organic inorganic hybrid materials named 'element-blocks'. This concept provides the idea that an element-level design and combinations of the functional units can create innovative materials. Herein, we demonstrate synthetic methods and examples of the organicinorganic hybrid materials, and we introduce our recent work based on the concept of element-blocks.

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Switching the light emission of (4-biphenylyl)phenyldibenzofulvene by morphological modulation: crystallization-induced emission enhancement

Cited by 402 publications

References 30 publications

Label‐Free Fluorescent Probing of G‐Quadruplex Formation and Real‐Time Monitoring of DNA Folding by a Quaternized Tetraphenylethene Salt with Aggregation‐Induced Emission Characteristics

Label‐Free Fluorescent Probing of G‐Quadruplex Formation and Real‐Time Monitoring of DNA Folding by a Quaternized Tetraphenylethene Salt with Aggregation‐Induced Emission Characteristics

Thermally Induced Reversible Phase Transformations Accompanied by Emission Switching Between Different Colors of Two Aromatic‐Amine Compounds

Creative Synthesis of Organic–Inorganic Molecular Hybrid Materials

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