Supramolecular Self-Assembly and Metal–Ligand-Enhanced Organic Room-Temperature Phosphorescence for Live Cell Imaging DOI
Yu Xia,

Qing-Hong Bai,

Yangming Jiang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

A purely organic supramolecular assembly emitting room-temperature phosphorescence (RTP) was constructed from 1-(3-(bis(pyridin-2-ylmethyl)amino)propyl)-4-(4-bromophenyl)pyridin-1-ium bromide (BP-DPA) by complexing with cucurbit[8]uril (Q[8]) and Zn2+ through a assembly. Benefiting the strong affinity macrocyclic restriction effect of Q[8], emission achieved encapsulating BP-DPA in Q[8] cavity. Notably, secondary formed complex BP-DPA@Q[8]⊂Zn2+, which greatly contributed to enhancement quantum yield lifetime 1.75% 6.25% 0.48 1.25 ms, respectively. Meanwhile, BP-DPA@Q[8] specifically recognizes low detection limit without interference common metal ions, anions, biomolecules. It permeates plasma membrane cells emits specific response signal presence Zn2+. In addition, this material can also be utilized for development portable indicator papers, enabling rapid visualized This work provides route constructing multilevel assemblies RTP, extending biological applications RTP materials offering additional possibilities potential utilization cucurbit[n]uril-based materials.

Language: Английский

Amorphous Aggregation Enhanced Room Temperature Phosphorescence Emission From Naphthalimide Derivative DOI Open Access
Yi Li,

Shiman Tang,

Kaiti Wang

et al.

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

Abstract In recent years, organic room temperature phosphorescence (RTP) materials have been well developed. Especially, when the compounds are doped into a rigid polymeric matrix, their RTP performances can be greatly enhanced. However, dispersibility and stability of difficult to controlled. Herein, an amorphous homo‐polymer ( P1 ) containing naphthalimide units is synthesized further dispersed polyvinyl alcohol (PVA) matrix via solution mixing procedure. The resultant composites P1@PVA exhibit yellow afterglow under temperature. , chromophores constrained in aggregation state. Unlike crystalline state, intermolecular interactions between aggregated enhanced, while π–π interaction weakened. presence PVA, non‐radiative decay synergistically suppressed by external hydrogen bonds internal interactions. As results, much Comparing with PVA compounds, lifetime prolonged as 1.5 folds.

Language: Английский

Citations

0
Supramolecular Self-Assembly and Metal–Ligand-Enhanced Organic Room-Temperature Phosphorescence for Live Cell Imaging DOI
Yu Xia,

Qing-Hong Bai,

Yangming Jiang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 6, 2025

A purely organic supramolecular assembly emitting room-temperature phosphorescence (RTP) was constructed from 1-(3-(bis(pyridin-2-ylmethyl)amino)propyl)-4-(4-bromophenyl)pyridin-1-ium bromide (BP-DPA) by complexing with cucurbit[8]uril (Q[8]) and Zn2+ through a assembly. Benefiting the strong affinity macrocyclic restriction effect of Q[8], emission achieved encapsulating BP-DPA in Q[8] cavity. Notably, secondary formed complex BP-DPA@Q[8]⊂Zn2+, which greatly contributed to enhancement quantum yield lifetime 1.75% 6.25% 0.48 1.25 ms, respectively. Meanwhile, BP-DPA@Q[8] specifically recognizes low detection limit without interference common metal ions, anions, biomolecules. It permeates plasma membrane cells emits specific response signal presence Zn2+. In addition, this material can also be utilized for development portable indicator papers, enabling rapid visualized This work provides route constructing multilevel assemblies RTP, extending biological applications RTP materials offering additional possibilities potential utilization cucurbit[n]uril-based materials.

Language: Английский

Citations

0