Upconversion Luminescence of Gd2O3:Ln3+ Nanorods for White Emission and Cellular Imaging via Surface Charging and Crystallinity Control

Wu, Ming-Ting; Guan, Guijian; Yao, Bingqing; Teng, Choon-Peng; Liu, Shuhua; Tee, Si Yin; Ong, Boon Chong; Dong, Zhi Li; Han, Ming‐Yong

doi:10.1021/acsanm.8b02315

Cited by 22 publications

(10 citation statements)

References 60 publications

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“…A schematic representation of each mechanism is shown in Figure 1. The UC-ETU is the most common path to obtain UC photoluminescence [34]. In this process, both the sensitizer and activator must be in the crystal lattice as doping ions.…”

Section: Down-and Up-conversion Emission Processesmentioning

confidence: 99%

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

et al. 2021

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In the last decade, the publications presenting novel physical and chemical aspects of gadolinium-based oxide (Gd2O3) and oxysulfide (Gd2O2S) particles in the micro- or nano-scale have increased, mainly stimulated by the exciting applications of these materials in the biomedical field. Their optical properties, related to down and upconversion phenomena and the ability to functionalize their surface, make them attractive for developing new probes for selective targeting and emergent bioimaging techniques, either for biomolecule labeling or theranostics. Moreover, recent reports have shown interesting optical behavior of these systems influenced by the synthesis methods, dopant amount and type, particle shape and size, and surface functionality. Hence, this review presents a compilation of the latest works focused on evaluating the optical properties of Gd2O3 and Gd2O2S particles as a function of their physicochemical and morphological properties; and also on their novel applications as MRI contrast agents and drug delivery nanovehicles, discussed along with their administration routes, biodistribution, cytotoxicity, and clearance mechanisms. Perspectives for this field are also identified and discussed.

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Section: Down-and Up-conversion Emission Processesmentioning

confidence: 99%

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

et al. 2021

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“…Однако для наноматериалов, допированных РЗИ, также может наблюдаться и противоположное явлениенеобычное увеличение времени затухания люминесценции ионов Ln 3+ [59,60]. Увеличение времени жизни 5 D 0 -состояния иона Eu 3+ может быть обусловлено влиянием кристаллического окружения матрицы и изменением постоянной кристаллической решетки [2,39].…”

Section: симметрия локального окружения рзи в нанокристаллахunclassified

“…Кроме того, эти наночастицы не были подвержены фотообесцвечиванию, что способствовало проведению длительной микроскопии. Впоследствии идея биовизуализации с применением ап-конверсионных наночастиц была реализована с использованием других оксисульфидных и оксидных наноматериалов (например, Y 2 O 3 : Yb/Er и Gd 2 O 3 : Yb/Er [179,180]).…”

Section: оптическаяunclassified

Люминесцентные Наноматериалы, Допированные Редкоземельными Ионами, И Перспективы Их Биомедицинского Применения (Обзор)

Бажукова¹,

Пустоваров²,

Мышкина³

et al. 2020

Журнал Технической Физики

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Luminescent nanomaterials doped with rare-earth elements are characterized by such physicochemical properties as long-lived luminescence, large Stokes or anti-Stokes shifts, narrow emission bands, high photostability and low toxicity. These materials can be considered as a new generation of biosensors along with conventional molecular probes, such as organic dyes, quantum dots and chelate-based lanthanide probes. In recent years there has been significant interest in the study of functional nanomaterials based on rare earth elements. The purpose of this paper is to provide an overview of recent advances in the development of luminescent inorganic nanoparticles doped with rare earth elements which could be used for biomedical applications.

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“…From the latest research in upconversion luminescent materials, lanthanide doping oxide-based materials exhibit great advantages attributed to their low phonon energy, superior chemical stability, and brilliant durability. Gadolinium oxide is a promising oxide luminescent matric owning to its low photon energy, high physical durability, good thermal stability, as well as similar ionic radius with doped ions. , Moreover, doping of rare ions in Gd 2 O 3 has proven to be useful in achieving high efficiency luminescence; tunable emission color; and the application of biologic imaging, photovoltaic cells, anticounterfeiting techniques, etc. − …”

Section: Introductionmentioning

confidence: 99%

Low Power High Purity Red Upconversion Emission and Multiple Temperature Sensing Behaviors in Yb³⁺,Er³⁺ Codoped Gd₂O₃ Porous Nanorods

Zheng

Sun

et al. 2020

ACS Sustainable Chem. Eng.

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Lanthanide ion doped upconversion nanomaterials have attracted great interest because of their extensive application, especially in color display and temperature sensing. However, control synthesis of lanthanide ion doped upconversion nanomaterials with high color purity and excellent temperature sensing properties remain a great challenge. Herein, the first preparation of Yb 3+ ,Er 3+ codoped Gd 2 O 3 porous nanorods not only achieve high purity red upconversion under low pump power but also possess superior temperature sensing performance. By utilizing a single NIR 980 nm laser, the high purity red and orange emission with high color purity of 99.7%, 99.6% are simultaneously realized under low power of 10 mW, respectively. Furthermore, excellent temperature sensing performing, integrating ultrahigh absolute sensitivity (S a ), outstanding relative sensitivity (S r ), and good signal discriminability (ΔE ≈ 1059 cm −1 ) is implemented in single Gd 2 O 3 :Yb 3+ ,Er 3+ nanorods based on the fluorescence intensity ratio (FIR) technique from stark sublevels of Er 3+ ions. Particularly, the maximum S a and S r of the thermally coupled level (TCL) pair by (G 1+ G 2 )/G 4 is 1.86% (at 558 K) and 1.51% (at 298 K), which is superior to the sensitivity based on traditional TCL pair by stark levels of 2 H 11/2 / 4 S 3/2 . Additionally, experimental results demonstrate that the values of S a and S r from the stark sublevels are proportional to energy spacing (ΔE), overcoming the dilemma between relative sensitivity and absolute sensitivity based on traditional TCL pairs. This work opens a new avenue toward constructing high purity emission and multiple temperature sensing performing materials.

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Upconversion Luminescence of Gd₂O₃:Ln³⁺ Nanorods for White Emission and Cellular Imaging via Surface Charging and Crystallinity Control

Cited by 22 publications

References 60 publications

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

Люминесцентные Наноматериалы, Допированные Редкоземельными Ионами, И Перспективы Их Биомедицинского Применения (Обзор)

Low Power High Purity Red Upconversion Emission and Multiple Temperature Sensing Behaviors in Yb³⁺,Er³⁺ Codoped Gd₂O₃ Porous Nanorods

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Upconversion Luminescence of Gd2O3:Ln3+ Nanorods for White Emission and Cellular Imaging via Surface Charging and Crystallinity Control

Cited by 22 publications

References 60 publications

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

An Overview of Gadolinium-Based Oxide and Oxysulfide Particles: Synthesis, Properties, and Biomedical Applications

Люминесцентные Наноматериалы, Допированные Редкоземельными Ионами, И Перспективы Их Биомедицинского Применения (Обзор)

Low Power High Purity Red Upconversion Emission and Multiple Temperature Sensing Behaviors in Yb3+,Er3+ Codoped Gd2O3 Porous Nanorods

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Product

Resources

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Upconversion Luminescence of Gd₂O₃:Ln³⁺ Nanorods for White Emission and Cellular Imaging via Surface Charging and Crystallinity Control

Low Power High Purity Red Upconversion Emission and Multiple Temperature Sensing Behaviors in Yb³⁺,Er³⁺ Codoped Gd₂O₃ Porous Nanorods