One-step construction of bifunctional nanoprobes for NIR afterglow and T2-weighted MR imaging

Zhu, Yaqi; Yang, Jian; Wang, Mingwei; Meng, Yangqi; Jiang, Rongyun; Zhu, Hancheng; Yan, Duanting; Xu, Changshan; Liu, Yuxue

doi:10.1016/j.ceramint.2022.02.291

Cited by 4 publications

(2 citation statements)

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“…This may be due to the fact that the existence of the charged groups attached to the surface of ZGGO:Ni 2+ nanoparticles in the SLS solution can lead to the electrostatic interaction between nanoparticles and the occurred agglomeration sinking. 48 The previous result suggests that ZGGO:Ni 2+ nanoparticles have potential application in in vivo bioimaging for tumor with acid environment. 49 Here, 5 mm pork tissue was employed.…”

Section: Resultsmentioning

confidence: 95%

“…However, for the colloidal solution containing SLS, merely after standing for 12 h, its upper part became transparent, suggesting the precipitation of nanoparticles occurred. This may be due to the fact that the existence of the charged groups attached to the surface of ZGGO:Ni 2+ nanoparticles in the SLS solution can lead to the electrostatic interaction between nanoparticles and the occurred agglomeration sinking 48 . The previous result suggests that ZGGO:Ni 2+ nanoparticles have potential application in in vivo bioimaging for tumor with acid environment 49 .…”

Section: Resultsmentioning

confidence: 97%

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Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles

et al. 2022

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In this study, Zn 2(1−x) Ni 2x Ga 3 Ge 0.75 O 8 (x = 0.0002, 0.001, 0.002, 0.010, 0.020, and 0.030) nanoparticles with broadband NIR-II emissions were synthesized by a hydrothermal synthesis combined with a vacuum annealing. For the Ni 2+doped ZGGO samples (x = 0-0.03), with increasing concentration, the particle shape gradually becomes spherical and the average particle size decreases from 124.4 to 74.2 nm. Meanwhile, for the ZGGO:Ni 2+ 0.01 nanoparticles, the asymmetrically broad emission peak around 1290 nm, which is the superposition of the two peaks locating at 1280 and 1450 nm, can be observed and the afterglow time exceeds 30 min. Based on the spectral data, luminescence decay curves, first-principles calculations, and Tanabe-Sugano theory, it is found that Ni 2+ ions can occupy not only tetrahedral but also octahedral Zn 2+ sites (locating in anti-site defects pair) in the spinel ZGGO host, and they have the contributions to the 1450 and 1280 nm emission peaks, respectively. Furthermore, the surface-modified ZGGO:Ni 2+ nanoparticles exhibited good stability in the H 2 O and HSA (5% human serum albumin, pH = 7.4) solutions and the occurred agglomeration sinking in the SLS (simulate lysosomal solution, pH = 4.7) solution. Compared to the narrow-band NIR-II emitting persistent luminescence nanoparticles (ZGGO:Cr 3+ ,Er 3+ and ZGGO:Cr 3+ ,Nd 3+ ), broadband NIR-II emitting persistent luminescence nanoparticles (ZGGO:Ni 2+ NIR-II) possess stronger persistent luminescence intensity and can effectively avoid the water absorption of biological tissues. Our results suggest that ZGGO:Ni 2+ persistent luminescence nanoparticles have a potential to become optical probes for deep-tissue autofluorescence-free bioimaging in the biomedical field.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 97%

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles

et al. 2022

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Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

Yang

Gai

Ding

et al. 2023

Advanced Optical Materials

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adom.202202382.the stored excitation energy in energy traps, which can be released by thermal stimulation. [2] Obviously, the process is very different from the real-time excited fluorescence (FL). Usually, the excitation source can be X-ray, ultraviolet (UV), and visible (Vis) light, and there is no need for continuous external light irradiation, while the PL may locate in UV, Vis, or near-infrared (NIR) spectral regions. [3] Especially, Vis emissions are easy to be modulated for colorful light, and NIR emissions in the biological window (≈650-1800 nm) offer deep tissue penetration and prevented autofluorescence. [3a,4] According to the outstanding luminescent properties, enormous opportunities in diverse application fields have been discovered, mainly including long-lasting tumor optical imaging and therapy, [5] security and anti-counterfeiting, [6] optical information and data storage, [7] photocatalysis, [8] fingerprint recognition, [6c] analysis and sensing, [1c,4a,9] as well as the potential applications of synaptic plasticity [10] and light-emitting diodes. [11] Retrieved from Web of Science, > 6800 articles by tracing the themes "afterglow" or "persistent luminescence" or "longlasting luminescence" have been published during the last decade (i.e., ≈2012-2022). Diverse categories of persistent luminescent materials have been developed, such as organic materials, [12] carbon dots, [13] metal-organic frameworks, [14] doped inorganic crystals et al. [2,15] Among them, organic afterglow materials, usually named as organic room temperature phosphorescence materials have recently drawn extensive attention due to the advantage of sustainable resources, low cost, and safety. [16] Based on the composition, organic afterglow materials can be mainly divided into organic small molecules, polymers, and organic-inorganic hybrids, which are normally related to the radiative transition from the lowest excited triplet state (T 1 ) to the ground state (S 0 ). Thus, methods for enhancing the intersystem crossing (ISC) rate are reasonable for realizing highly efficient afterglow, such as introducing heavy atoms, paramagnetic molecules, aromatic carbonyls, heteroatoms, and crystal engineering. [17] Recently, organic room-temperature phosphorescence with a high quantum yield above 56% and long afterglow lifetime longer than 22 s has been achieved by using suitable inorganic framework. [18] Additionally, color-tunable

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The optimized size distribution and NIR persistent luminescence of Zn2Ga2.98-4/3Hf Ge0.75O8:Cr0.02 nanoparticles via high-valence ion doping

Bao,

Li,

Yang

et al. 2024

Journal of Luminescence

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One-step construction of bifunctional nanoprobes for NIR afterglow and T2-weighted MR imaging

Cited by 4 publications

References 42 publications

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

The optimized size distribution and NIR persistent luminescence of Zn2Ga2.98-4/3Hf Ge0.75O8:Cr0.02 nanoparticles via high-valence ion doping

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One-step construction of bifunctional nanoprobes for NIR afterglow and T2-weighted MR imaging

Cited by 4 publications

References 42 publications

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn2(1−x)Ni2xGa3Ge0.75O8 nanoparticles

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn2(1−x)Ni2xGa3Ge0.75O8 nanoparticles

Recent Progress in Inorganic Afterglow Materials: Mechanisms, Persistent Luminescent Properties, Modulating Methods, and Bioimaging Applications

The optimized size distribution and NIR persistent luminescence of Zn2Ga2.98-4/3Hf Ge0.75O8:Cr0.02 nanoparticles via high-valence ion doping

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Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles

Doping and luminescence mechanisms of broadband NIR‐II emitting Zn₂₍₁₋_x₎Ni₂_xGa₃Ge_0.75O₈ nanoparticles