Achieving persistent room-temperature phosphorescence from phenanthridone derivatives by molecular engineering DOI

Hongzhuo Wu,

Deliang Wang, Jianquan Zhang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(38), P. 15527 - 15534

Published: Jan. 1, 2024

A facile design strategy based on molecular engineering is proposed for the first time to achieve a series of PTD derivatives with tunable persistent RTP properties through substituent effects.

Language: Английский

Aggregation‐Assisted Three‐Photon Fluorescence Resonance Energy Transfer Boosts Phosphorescence for Deep‐Tissue Time‐Resolved Intravital Brain Imaging DOI

Bingshun Wu,

Yifei Li,

Lan Liu

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Abstract Three‐photon phosphorescence microscopic bioimaging holds promise for deep‐tissue time‐resolved brain imaging with high spatial resolution and contrast. However, developing probes bright strong second near‐infrared (NIR‐II) three‐photon absorption suitable biological applications remains a formidable challenge. Herein, kind of fluorescence resonance energy transfer (FRET)‐based nanoparticles (NPFA‐PorPt NPs) is proposed by co‐encapsulation absorbing aggregation‐induced emission luminogen (NPFA), phosphorescent platinum octaethylporphyrin (PorPt) using 1,2‐distearoyl‐sn‐glycero‐3‐phosphoethanolamine‐N‐[methoxy(polyethylene glycol)‐2000] as the encapsulation matrix. NPFA well designed to display superior properties in NIR‐II region its overlaps PorPt, allowing efficient PorPt nanoparticles. The optimal NPFA‐2%PorPt NPs boosted 350‐fold compared that pure aggregates upon same excitation. excited enables be successfully applied vivo muscle vascular deep penetration, resolution, contrast, even small capillaries tissue can recognized. This study paves way development highly multiphoton‐absorbing biomedical applications.

Language: Английский

Citations

0

Stimulus‐Responsive Emission via Dynamic Triplet Energy Transfer in Organic Room‐Temperature Phosphorescence Glass DOI

Zixuan Xu,

Wenbin Chen,

Keyao Chen

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Abstract Dynamic organic room‐temperature phosphorescence (RTP) glasses with color tunability offer significant potential for practical applications due to their high transparency and excellent machinability. In this study, efficient dynamic RTP properties are used as triplet donors, combined commercially available chromophores singlet/triplet acceptors, successfully fabricate a series of host‐guest doping color‐tunable afterglow responses external stimuli. The energy transfer mechanisms, including triplet‐to‐singlet resonance Dexter‐type triplet‐to‐triplet transfer, confirmed using state‐of‐the‐art femtosecond time‐resolved transient absorption spectroscopy. These demonstrate transparency, good machinability, responsiveness study highlights in large‐area glass fabrication, data encryption, flexible displays. This work not only provides simple design principle developing novel materials but also promotes the information encryption optoelectronics.

Language: Английский

Citations

0

Diagnostic and Therapeutic Optical Imaging in Cardiovascular Diseases DOI Creative Commons
Weiran Pang,

Chuqi Yuan,

Tianting Zhong

et al.

iScience, Journal Year: 2024, Volume and Issue: 27(11), P. 111216 - 111216

Published: Oct. 22, 2024

Cardiovascular disease (CVD) is one of the most prevalent health threats globally. Traditional diagnostic methods for CVDs, including electrocardiography, ultrasound, and cardiac magnetic resonance imaging, have inherent limitations in real-time monitoring high-resolution visualization cardiovascular pathophysiology. In recent years, optical imaging technology has gained considerable attention as a non-invasive, high-resolution, solution study diagnosis CVD. This review discusses latest advancements, applications techniques imaging. We compare advantages over traditional modalities especially scrutinize such coherence tomography, photoacoustic fluorescence summarize their investigations atherosclerosis, myocardial infarction, heart valve disease, etc. Additionally, we discuss challenges like deep-tissue high spatiotemporal resolution adjustment, existing solutions multimodal integration, artificial intelligence, enhanced probes. article aims to drive further development technologies provide more precise efficient tools early diagnosis, pathological mechanism exploration, treatment

Language: Английский

Citations

3

Growth regulation of an easily crystallized organic long-persistent luminescence system with in situ anti-counterfeiting applications DOI
Duo Liu, Yakun Song, Hao Wang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(29), P. 10942 - 10949

Published: Jan. 1, 2024

A new method to regulate the growth of OLPL-doped materials, focusing on easily crystallizable doping systems for in situ anti-counterfeiting ‘paper-ink’ strategy applications.

Language: Английский

Citations

2

Achieving persistent room-temperature phosphorescence from phenanthridone derivatives by molecular engineering DOI

Hongzhuo Wu,

Deliang Wang, Jianquan Zhang

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(38), P. 15527 - 15534

Published: Jan. 1, 2024

A facile design strategy based on molecular engineering is proposed for the first time to achieve a series of PTD derivatives with tunable persistent RTP properties through substituent effects.

Language: Английский

Citations

1