Luminescent Sensors Based on the Assembly of Coinage Metal Nanoclusters

Ren, Chenyu; Shu, Tong; Du, Xin; Yang, Linzhi; Su, Lei; Zhang, Xueji

doi:10.3390/chemosensors10070253

Cited by 2 publications

(3 citation statements)

References 95 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[66,77] The assembly of ligand-protected mono LP-MNCs into superstructures depends on the structure of the ligands and the homogeneity and shape of the mono LP-MNCs. [32,77,78] Starting from the primary structure of the ligands, interactions between LP-MNCs construct the secondary structure of the ligand shell layer on the nuclear surface, while further interactions between the coordination of adjacent nanoclusters lead to the tertiary structure, which is also defined as superstructure (Figure 1c). [79] LP-CuNCs follow the same principles as LP-MNCs in the general structures, but they also show some unique properties.…”

Section: Basics Of Cu Nanoclustersmentioning

confidence: 99%

Ligand Design in Atomically Precise Copper Nanoclusters and Their Application in Electrocatalytic Reactions

Liu,

Yu,

Lun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

Metal nanoclusters (MNCs) are compositionally well‐defined and also structurally precise materials with unique molecule‐like properties and discrete electronic energy levels. Atomically precise ligand‐protected Cu nanoclusters (LP‐CuNCs) are one category of typical MNCs that usually demonstrate unique geometric and electronic structures to serve as electrocatalysts. However, the synthesis, application, as well as structure‐performance relationship of LP‐CuNCs are not adequately studied. Significantly, the ligands are essential to the geometric structure, crystal structure, size, and electronic structure of LP‐CuNCs, which determine their physiochemical properties and applications. In this review, significant progress in the ligand design of LP‐CuNCs, and their application in electrocatalytic reactions is introduced. The general basics of ligand‐protected MNCs (LP‐MNCs) are first introduced and the functions of ligands are emphasized. Subsequently, a series of different ligands for LP‐CuNCs including thiolates, phosphines, alkynyl, polymers, and biomolecules are highlighted. Thereafter, their applications in different electrocatalytic reactions are discussed. It is believed that this review will not only inspire the design and synthesis of novel LP‐CuNCs, but also contribute to the extension of their applications in electrocatalytic reactions and the establishment of accurate structure‐performance relationships.

show abstract

Section: Basics Of Cu Nanoclustersmentioning

confidence: 99%

Ligand Design in Atomically Precise Copper Nanoclusters and Their Application in Electrocatalytic Reactions

Liu,

Yu,

Lun

et al. 2023

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…24 For example, Wang and Tang et al developed a new AIE molecule under a new photoactivatable mechanism of photo-induced crystallization with emission enhancement, with emission enhancement by self-assembling into a regular arrangement under UV light irradiation. 24 Inspired by the luminescence mechanism of AIEgens, many other methods aiming to prevent intramolecular motions have been developed, such as fabricating 2D metal nanoparticle platforms 25 and supramolecular assemblies. 26−32 From a structural viewpoint, cucurbit[n]urils (CB[n]s), which possess high binding affinity toward a variety of cationic or neutral guests through hydrophobic and electrostatic interaction, 33−37 can be expected to effectively prevent aggregation-caused quenching by providing macrocyclic fence, suppressing the quenching of the triplet, suppressing the vibrational deactivation of the excited state through host−guest interactions, restricting molecular motions of the encapsulated luminescence silent dyes to undergo various luminescent emissions.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Inspired by the luminescence mechanism of AIEgens, many other methods aiming to prevent intramolecular motions have been developed, such as fabricating 2D metal nanoparticle platforms and supramolecular assemblies. − From a structural viewpoint, cucurbit[ n ]urils (CB[ n ]s), which possess high binding affinity toward a variety of cationic or neutral guests through hydrophobic and electrostatic interaction, − can be expected to effectively prevent aggregation-caused quenching by providing macrocyclic fence, suppressing the quenching of the triplet, suppressing the vibrational deactivation of the excited state through host–guest interactions, restricting molecular motions of the encapsulated luminescence silent dyes to undergo various luminescent emissions . For instance, we constructed a supramolecular luminescent nanosystem by anthracene-conjugated bromophenylpyridinium salt and CB[8], capable of phototunable transformation from fluorescence to phosphorescence in different organelles .…”

Section: Introductionmentioning

confidence: 99%

Photo-Controlled Nano-Supramolecular Size and Reversible Luminescent Behaviors Based on Cucurbit[7]uril Cascaded Assembly

Fu,

Shi,

Liu

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Supramolecular luminescent material with switchable behavior and photo-induced aggregation with emission enhancement is a current research hot spot. Herein, a size-tunable nano-supramolecular assembly with reversible photoluminescent behavior was constructed by noncovalent polymerization of diarylethene-bridged bis(coumarin) derivative (DAE-CO), cucurbit[7]uril (CB[7]), and β-cyclodextrin-grafted hyaluronic acid (HACD). Benefiting from the macrocyclic confinement effect, the guest molecule DAE-CO was included into the cavity of CB[7] to give enhanced fluorescence emission of the resulting DAE-CO⊂CB[7]2 with longer lifetime at 432 nm to 1.43 ns, thereby further enhancing fluorescence output and lifetime (1.46 ns) when further assembled with HACD, compared with the free DAE-CO (0.95 ns). In addition, DAE-CO, DAE-CO⊂CB[7]2, and DAE-CO⊂CB[7]2&HACD all possessed characteristics of aggregation-induced emission and reversible photo-switched structural interconversion, exhibiting an obvious photophysical activation phenomenon of self-aggregation into larger nanoparticles with increase in fluorescence emission intensity, lifetime, and size after irradiation, which could be increased step by step with the alternating irradiation of 254 nm (5 min) or >600 nm (30 s) repeated 7 times. These supramolecular assemblies were successfully used in the tumor cells’ targeted imaging and anti-counterfeiting because of the capability of HACD for recognizing specific receptors overexpressed on the surface of tumor cells and the excellent photo-regulated switch ability of DAE-CO, providing an approach of constructing photo-induced emission-enhanced luminescent materials.

show abstract

Luminescent Sensors Based on the Assembly of Coinage Metal Nanoclusters

Cited by 2 publications

References 95 publications

Ligand Design in Atomically Precise Copper Nanoclusters and Their Application in Electrocatalytic Reactions

Ligand Design in Atomically Precise Copper Nanoclusters and Their Application in Electrocatalytic Reactions

Photo-Controlled Nano-Supramolecular Size and Reversible Luminescent Behaviors Based on Cucurbit[7]uril Cascaded Assembly

Contact Info

Product

Resources

About