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A sulfonated cyclodextrin-p-phenylene vinylene derivative-Nile red ternary nano-supramolecular light-harvesting system and its preparation method

A technology of p-phenylene vinylene and sulfonated cyclodextrin, which is applied in the field of nano-supramolecular light harvest to achieve the effects of good water solubility, broad application prospects and high-efficiency energy transfer

Inactive Publication Date: 2019-03-19
NANKAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is still a challenge to construct an efficient light-harvesting system in the aqueous phase.

Method used

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  • A sulfonated cyclodextrin-p-phenylene vinylene derivative-Nile red ternary nano-supramolecular light-harvesting system and its preparation method
  • A sulfonated cyclodextrin-p-phenylene vinylene derivative-Nile red ternary nano-supramolecular light-harvesting system and its preparation method
  • A sulfonated cyclodextrin-p-phenylene vinylene derivative-Nile red ternary nano-supramolecular light-harvesting system and its preparation method

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Embodiment

[0037] A ternary nanosupramolecular light-harvesting system of sulfonated cyclodextrin-p-phenylene vinylene derivative-Nile red, in which the binary supramolecular assembly constructed by sulfonated cyclodextrin-imidazole-modified p-phenylene vinylene As a donor, Nile Red is loaded into a hydrophobic assembly as an acceptor, and the chemical structure of its building blocks is as follows:

[0038]

[0039] The preparation method of the ternary nano supramolecular light harvesting system of sulfonated cyclodextrin-imidazole modified p-phenylene vinylene-Nile red comprises the following steps:

[0040] Step 1, preparation of imidazole-modified p-phenylene vinylene;

[0041] Step 2, preparation of sulfonated cyclodextrin-imidazole modified p-phenylene vinylene binary supramolecular fluorescent nanoparticle solution;

[0042] Step 3, loading the dye acceptor Nile Red into the binary supramolecular fluorescent nanoparticle solution.

[0043] See attached figure 1, in the abov...

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Abstract

The invention provides an SCD-phenylenevinylene derivative-Nile red ternary nano supermolecular light harvesting system and a preparation method thereof. The chemical structural formula of the system construction unit is shown in the description. The SCD-phenylenevinylene derivative-Nile red ternary nano supermolecular light harvesting system and the preparation method thereof have the advantages that imidazole-modified phenylenevinylene has good aggregation-induced emission characteristic, aggregation-induced quenching cannot occur under high concentration, and the imidazole-modified phenylenevinylene can be taken as an energy donor; the cyclodextrin can reduce the critical aggregation concentration of the imidazole-modified phenylenevinylene and improve the aggregation-induced emission property of the imidazole-modified phenylenevinylene, so that the light harvesting system has excellent water solubility; hydrophobic dye Nile red can be loaded to the fluorescent nanoparticles constructed by the SCD-imidazole-modified phenylenevinylene, can be taken as a receptor to realize efficient energy transfer and has a relative wide application prospect in simulating natural photosynthesis.

Description

technical field [0001] The invention belongs to the technical field of nanometer supramolecular light harvesting, in particular to a ternary nanometer supramolecular light harvesting system of sulfonated cyclodextrin (SCD)-imidazole modified p-phenylene vinylene (OPV-I)-Nile red. Background technique [0002] In nature, green plants and some photosynthetic bacteria efficiently capture, transfer, and store solar energy to achieve photosynthesis. In photosynthetic organisms, tightly packed chlorophyll molecules absorb light, and subsequently, light-induced energy transfer occurs between chlorophyll molecules, and the excited energy is transferred to the reaction center and converts light energy into chemical energy. In recent years, a large number of researchers have simulated the light harvesting process in nature, and achieved efficient and rapid energy transfer from donor to acceptor through the mechanism of fluorescence resonance energy transfer, see: (1) Xu, Z.; Peng, S ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/06
CPCC09K11/06C09K2211/1007C09K2211/1033C09K2211/1044C09K2211/1088
Inventor 刘育李晶晶陈湧
Owner NANKAI UNIV
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