South China University of Technology

Ben Zhong Tang

Zujin Zhao

Rongrong Hu

Anjun Qin

Zhiming Wang

Shiwu Li

Bo Song

Huijun Liu

Meng Gao

The present invention, belonging to the technical field of biological imaging, discloses a photo-activatable aggregation-induced emission probe with in-situ generation capability, a preparation method therefor and an application thereof. The preparation method is as follows: A bis(2-(2-hydroxybenzylidene)amino)aryl disulfide compound is reacted with thiol to obtain a photo-activatable aggregation-induced emission probe, which has a structure as shown in formula III. In the present invention, the photo-activatable aggregation-induced emission probe is aggregated into a specific organelle, and a 2-(2-hydroxyphenyl)benzothiazole compound having the aggregation-induced emission property is generated through a photo-oxidation reaction. The photo-activatable aggregation-induced emission probe generated in situ of the present invention can effectively overcome the defects of aggregation-induced quenching of traditional fluorescent dyes, and realize organelle-targeted specific photo-activatable fluorescence imaging in living cells, having such advantages as easy preparation, long-term storage, high photo-activation efficiency, large Stokes shift, and strong ability to enter cells.

Preparation method for photo-activatable aggregation-induced emission probe with in-situ generation capability

The disclosure belongs to the technical field of organic photoelectric materials, and discloses carbonyl containing organic electroluminescent materials and use thereof in OLED. The carbonyl containing organic electroluminescent materials have a structure of formula I, wherein Rand Rare different in Formula I, Rand Rare different electron-donating groups of aromatic ring derivatives; Ris an electron-donating groups of hole transport host materials or electron-donating groups of bipolar transport host materials. The luminescent materials of the present disclosure are organic electroluminescent materials based on derivatives of a host material and a benzoyl group. They have both AIE and delayed fluorescence characteristics with high-efficiency solid-state emission, high exciton utilization, and bipolar features. The organic electroluminescent device prepared by the organic electroluminescent materials of the present disclosure has very good performance and broad application prospect in the field of organic electroluminescence.

Electroluminscent material containing carbonyl group, and application thereof to OLED

Provided herein is a narrow-range polyacetylene ester compound and a preparation method. The narrow-range polyacetylene ester compound has a structural formula as represented by formula (I). The method includes: in atmospheric carbon dioxide environment, a bifunctional alkyne monomer, carbon dioxide, and a dihalide monomer perform polymerization reaction by means of a combined action of a catalyzer and alkali, dissolve the product into an organic solvent, then add same to a precipitant for precipitation, collect precipitates, and dry same to the constant weight to obtain the narrow-range polyacetylene ester compound. The reaction is carried out in atmospheric carbon dioxide atmosphere, and carbon dioxide is involved as a monomer in the formation of a polymer. The obtained narrow-range polyacetylene ester compound has good thermal stability and excellent processability. Due to introduction of an aggregation-induced emission group, some polymers show a typical aggregation-induced emission performance. 

Narrow-range polyacetylene ester compound and preparation method therefor

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Guangzhou, China

Ben Zhong Tang