Supramolecular Artificial Light‐Harvesting Systems with Aggregation‐Induced Emission

Hu, Yi‐Xiong; Li, Wei‐Jian; Jia, Peipei; Wang, Xu‐Qing; Xu, Lin; Yang, Hai‐Bo

doi:10.1002/adom.202000265

Cited by 82 publications

(33 citation statements)

References 145 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To further explore the potential applications of these novel AIE macromolecules,t he construction of artificial LHSs [19] based on TPE-branched rotaxane dendrimers TG1-TG3 was then investigated. In this study,t he fluorescent dye eosin Y( ESY) was chosen as the fluorescence energy acceptor (Figure 4a).…”

Section: Methodsmentioning

confidence: 99%

Artificial Light‐Harvesting Systems Based on AIEgen‐branched Rotaxane Dendrimers for Efficient Photocatalysis

Wang

Zhang

et al. 2021

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

Aiming at the construction of novel platform for efficient light harvesting, the precise synthesis of a new family of AIEgen‐branched rotaxane dendrimers was successful realized from an AIEgen‐functionalized [2]rotaxane through a controllable divergent approach. In the resultant AIE macromolecules, up to twenty‐one AIEgens located at the tails of each branches, thus making them the first successful example of AIEgen‐branched dendrimers. Attributed to the solvent‐induced switching feature of the rotaxane branches, the integrated rotaxane dendrimers displayed interesting dynamic feature upon the aggregation‐induced emission (AIE) process. Moreover, novel artificial light‐harvesting systems were further constructed based on these AIEgen‐branched rotaxane dendrimers, which revealed impressive generation‐dependent photocatalytic performances for both photooxidation reaction and aerobic cross‐dehydrogenative coupling (CDC) reaction.

show abstract

Section: Methodsmentioning

confidence: 99%

Artificial Light‐Harvesting Systems Based on AIEgen‐branched Rotaxane Dendrimers for Efficient Photocatalysis

Wang

Zhang

et al. 2021

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

show abstract

“…So far, many artificial light‐harvesting systems have been constructed to investigate the energy transfer process mechanism especially the fluorescence resonance energy transfer (FRET) process. [ 3‐4 ] Among them, supramolecular self‐assembly systems including surface‐cross‐linked micelles, [ 5‐7 ] supramolecular polymers, [ 8‐14 ] supramolecular coordination‐driven assemblies, [ 15‐19 ] organic nanocrystals, [ 20‐21 ] supramolecular host‐guest assemblies [ 22‐33 ] have received widespread attention due to their simple molecular design and adjustability of functional assembly, providing more opportunities for people to understand the physical process of light. Due to the convenience of construction and the avoidance of complex synthesis, the construction of a light‐harvesting system using the microenvironment provided by the micelles assembled by surfactants has attracted extensive attention.…”

Section: Background and Originality Contentmentioning

confidence: 99%

An Artificial Light‐Harvesting System with Tunable Fluorescence Color in Aqueous Sodium Dodecyl Sulfonate Micellar Systems for Photochemical Catalysis

Wang

Song

et al. 2021

Chin. J. Chem.

View full text Add to dashboard Cite

Main observation and conclusion In the present work, an artificial light‐harvesting system with fluorescence resonance energy transfer (FRET) is successfully fabricated in aqueous sodium dodecyl sulfonate (SDS) micellar systems. Since the tight and orderly arrangement of dodecyl in the SDS micelles is hydrophobic, tetra‐(4‐pyridylphenyl)ethylene (4PyTPE) can be easily encapsulated into the hydrophobic layer of SDS micelles through noncovalent interaction, which exhibits aggregation‐induced emission (AIE) phenomenon and can be used as energy donor. By using amphoteric sulforhodamine 101 (SR101) fluorescent dye attached to the negatively charged surface of SDS micelles through electrostatic interaction as energy acceptor, the light‐harvesting FRET process can be efficiently simulated. Through the steady‐state emission spectra analysis in the micelle‐mediated energy transfer from 4PyTPE to SR101, the fluorescence emission can be tuned and white light emission with CIE coordinates of (0.31, 0.29) can be successfully achieved by tuning the donor/acceptor ratio. More importantly, to better mimic natural photosynthesis, the SDS micelles with 4PyTPE and SR101 FRET system showed enhanced catalytic activity in photochemical catalysis for dehalogenation of α‐bromoacetophenone in aqueous solution and the photocatalytic reaction could be extended to gram levels.

show abstract

“…[66] However, because the aggregation states of AIE-active molecules strongly affect their emission patterns, control of the assembly and morphology of such aggregates is of great importance, and the necessary control has been achieved by incorporation of macrocyclic elements into AIE systems. [67] For example, in 2014, Tang and coworkers reported an excellent demonstration of the use of host-guest interactions between β-CD and an AIE molecule (tetraphenylethene) to restrict the intramolecular motion of the latter. [68] They prepared fluorescent inclusion complexes that show excellent and biocompatibility and thus have potential applications for cell imaging.…”

Section: Molecular Recognition and Bioimagingmentioning

confidence: 99%

Organic supramolecular aggregates based on water‐soluble cyclodextrins and calixarenes

et al. 2020

View full text Add to dashboard Cite

Macrocycle‐induced formation of pure organic supramolecular aggregates is a challenge that has attracted considerable attention from researchers in the fields of chemistry, biology, and materials science. In particular, aggregation induced by water‐soluble cyclodextrins and calixarenes, which are two classic of macrocycles with a hydrophobic cavity and a hydrophilic external surface, has attracted interest because these host molecules can form aggregates with guest molecules via various noncovalent interactions, including hydrophobic interactions, van der Waals forces, hydrogen bonds, and electrostatic interactions. In this review, we focus mainly on some impressive recent progress, both by our group and other groups, on the construction of cyclodextrin‐ and calixarene‐based organic supramolecular aggregates, control of their topological morphology, and their use for biological applications such as molecular recognition and bioimaging, photodynamic therapy, light‐harvesting energy transfer, and targeted drug delivery. We also discuss shortcomings of the current reported results and future prospects for the development of multifunctional organic supramolecular aggregates for use in various fields.

show abstract

Supramolecular Artificial Light‐Harvesting Systems with Aggregation‐Induced Emission

Cited by 82 publications

References 145 publications

Artificial Light‐Harvesting Systems Based on AIEgen‐branched Rotaxane Dendrimers for Efficient Photocatalysis

Artificial Light‐Harvesting Systems Based on AIEgen‐branched Rotaxane Dendrimers for Efficient Photocatalysis

An Artificial Light‐Harvesting System with Tunable Fluorescence Color in Aqueous Sodium Dodecyl Sulfonate Micellar Systems for Photochemical Catalysis

Organic supramolecular aggregates based on water‐soluble cyclodextrins and calixarenes

Contact Info

Product

Resources

About