N-doped carbon dots under Xenon lamp irradiation: Fluorescence red-shift and its potential mechanism

Hu, Haijuan; Tian, Xinmeng; Gong, Yixuan; Ren, Guolan; Liang, Jiangong

doi:10.1016/j.saa.2019.03.020

Cited by 10 publications

(1 citation statement)

References 40 publications

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“…The ideal photostability may be ascribed to that a large number of hydrophilic groups on the surface of CDs can improve their stability in an aqueous solution, thereby enhancing the fluorescence stability [109]. Similarly, the fluorescence intensity of the CDs rich in the carboxyl group and hydroxyl group with 3-aminobenzoic acid exhibited overall stability by laser irradiation from 7 to 180 min [110]. Recently, the pH-induced hydrophilic CDs synthesized by using CA and m-aminophenol as precursors possessed high photostability and tunable LW fluorescence (Figure 5A).…”

Section: Photostabilitymentioning

confidence: 99%

Recent progress of emitting long-wavelength carbon dots and their merits for visualization tracking, target delivery and theranostics

Li¹,

Huang²,

Yuan³

et al. 2023

Theranostics

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As a novel strategy for in vivo visualization tracking and monitoring, carbon dots (CDs) emitting long wavelengths (LW, 600-950 nm) have received tremendous attention due to their deep tissue penetration, low photon scattering, satisfactory contrast resolution and high signal-to-background ratios. Although, the mechanism of CDs emitting LW remains controversial and what properties are best for in vivo visualization have not been specifically elucidated, it is more conducive to the in vivo application of LW-CDs through rational design and ingenious synthesis based on the appreciation of the luminescence mechanism. Therefore, this review analyzes the current tracer technologies applied in vivo and their advantages and disadvantages, with emphasis on the physical mechanism of emitting LW fluorescence for in vivo imaging. Subsequently, the general properties and merits of LW-CDs for tracking and imaging are summarized. More importantly, the factors affecting the synthesis of LW-CDs and its luminescence mechanism are highlighted. Simultaneously, the application of LW-CDs for disease diagnosis, integration of diagnosis and therapy are summarized. Finally, the bottlenecks and possible future directions of LW-CDs in visualization tracking and imaging in vivo are detailly discussed.

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Section: Photostabilitymentioning

confidence: 99%