JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Jing Yang,Yun Yuan,Ruxin Zhang,Chao Liu,Deyi Zhu,Dandan Ji
Industrial wastewater, a byproduct of rapid industrialization, often contains hazardous heavy metal ions such as Cu 2+ , Cr 3+ , posing significant risks to environmental and human health. To address the urgent need for fast and simple detection methods in industrial enterprises, we developed gelatin-poly-ε-caprolactone (GEL-PCL) nanofiber fluorescent sensors, incorporating 1,4-dihydroxyanthraquinone (1,4-DHAQ), for the rapid detection of Cu 2+ , Cr 3+ ions. Electrospinning was used to prepare 1,4-DHAQ@GEL-PCL and 1,4-DHAQ/Cu 2+ @GEL-PCL sensors, leveraging the fluorescence intensity fluctuation behavior between 1,4-DHAQ and the target ions to enable fluorescence-based detection. The sensors were characterized using SEM to confirm nanofiber morphology, and UV–Vis spectroscopy to analyze absorption properties. The sensors demonstrated high sensitivity and selectivity for Cu 2+ , Cr 3+ ions, with detection ranges of 4.8–6.5 × 10 −6 M and 2.7–4.3 × 10 −6 M, respectively. Furthermore, they maintained stable performance over 6 months of storage and showed reliable results in actual tannery wastewater samples, comparable to ICP-MS data. This study highlights the potential of these sensors as environmentally friendly, cost-effective tools for monitoring heavy metal ion concentrations, offering significant contributions to sustainable industrial wastewater management, and meeting the pressing needs of enterprises for efficient and straightforward monitoring solutions.
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DOI
高影响因子
Theranostics
·
2019
·
IF 8.063
Xu-Qi Kang,Gao-Feng Shu,Sai-Ping Jiang,Xiao-Lin Xu,Jing Qi,Fei-Yang Jin,Di Liu,Yong-Hong Xiao,Xiao-Yang Lu,Yong-Zhong Du
The prevalence of antibiotic resistance and lack of alternative drugs have posed an increasing threat to public health. Here, we prepared β-Ga 2 O 3 :Cr 3+ nanoparticles modified with ICAM1-antibody-conjugated TPGS (I-TPGS/Ga 2 O 3 ) as a novel antibiotic carrier for the treatment of drug-resistant infections. Methods : I-TPGS/Ga 2 O 3 were firstly characterized by measuring particle size, morphology, crystal structure, drug loading capacity, and in vitro drug release behaviors. The in vitro antibacterial activities of I-TPGS/Ga 2 O 3 /TIG were evaluated using standard and drug-resistant bacteria. The internalization of I-TPGS/Ga 2 O 3 was observed by fluorescence confocal imaging, and the expression levels of the efflux pump genes of TRKP were analyzed by real-time RT-PCR. In vitro cellular uptake and in vivo biodistribution study were performed to investigate the targeting specificity of I-TPGS/Ga 2 O 3 using HUEVC and acute pneumonia mice, respectively. The in vivo anti-infective efficacy and biosafety of I-TPGS/Ga 2 O 3 /TIG were finally evaluated using acute pneumonia mice. Results : It was found that TPGS could down-regulate the over-expression of the efflux pump genes, thus decreasing the efflux pump activity of bacteria. I-TPGS/Ga 2 O 3 with small particle size and uniform distribution facilitated their internalization in bacteria, and the TPGS modification resulted in a significant reduction in the efflux of loaded antibiotics. These properties rendered the encapsulated tigecycline to exert a stronger antibacterial activity both in vitro and in vivo . Additionally, targeted delivery of I-TPGS/Ga 2 O 3 mediated by ICAM1 antibodies contributed to a safe and effective therapy. Conclusion : It is of great value to apply I-TPGS/Ga 2 O 3 as a novel and effective antibiotic delivery system for the treatment of drug-resistant infections.
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DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
·
2026
·
IF 3.8
Xiangming Li,Jiaming Yuan,Qinghong Meng,Xuejiao Wang,Wanjun Yu,Zhijun Xu,Ji-Guang Li
To develop Cr 3+ -activated broadband near-infrared (NIR) phosphors emitting beyond 780 nm with a full-width at half-maximum (FWHM) > 150 nm for multifunctional applications, novel Y 3− x Ca x Ga 3 Al 2− x Si x O 12 : y Cr 3+ were developed by Ca 2+ /Si 4+ co-substitution in the Y 3 Ga 3 Al 2 O 12 garnet host. Both higher Ca 2+ /Si 4+ substitution and greater Cr 3+ incorporation weaken the crystal field strength, red-shift and broaden the Cr 3+ emission band, and shorten the fluorescence decay. Accordingly, the emission maximum and FWHM of this series can be effectively modulated over 708−827 nm and 78−208 nm, respectively. Further, the satisfactory luminescence (output power of 30.31 mW and photoelectric conversion efficiency of 10.75% at a 100 mA drive) and imaging performance of the as-fabricated device using the typical x = 1.5/ y = 0.03 sample demonstrated that this phosphor is a candidate material for the construction of pc-NIR-LED, which can be practically deployed in a range of scenarios, including night-vision imaging, food-quality inspection, and non-invasive bioimaging.
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高影响因子
MACROMOLECULAR RAPID COMMUNICATIONS
·
2013
·Vol. 35
·期 3
·323-329
·
IF 4.929
Xuejuan Wan,Haiyang Liu,Shen Yao,Tianqi Liu,Youwei Yao
Stimuli-responsive poly( N -isopropylacrylamide) nanogel with covalently labeled rhodamine B urea derivatives (P(NIPAM- co -RhBUA)) is utilized as a sensitive fluorescent probe for Cr 3+ in aqueous solution, and its thermo-induced tunable detection capacity is investigated. At 20 °C, non-fluorescent nanogel can selectively bind with Cr 3+ over some other metal ions, leading to prominent fluorescence OFF–ON switching due to the recognition of RhBUA with Cr 3+ . Upon heating above the phase transition temperature, enhanced fluorescence intensity is observed (≈61-fold increase at 45 °C) for the nanogel in the presence of Cr 3+ , accompanied with an improved detection sensitivity, which suggest that hydrophobic microenvironment generated in the collapsed nanogel plays an active role for their detection performance.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 8
·2814-2823
·
IF 5.7
Yixin Sun,Mengmeng Shang,Yining Wang,Yiying Zhu,Xiaole Xing,Peipei Dang,Jun Lin
Near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) are the ideal light source for next-generation NIR spectroscopy, and developing novel NIR phosphors with high performance is crucial to achieve a wide range of NIR pc-LED applications. In this work, NIR luminescent material Y2Mg2Al2Si2O12 (YMAS):2%Cr3+ with good quantum efficiency (79%) and excellent thermal stability (88%@100 °C) is prepared. Under 430 nm light excitation, YMAS:2%Cr3+ emits 620–1100 nm NIR light with a full-width at half maximum (FWHM) of 153 nm. Fluorescence decay curves, photoluminescence (PL) spectra, 7 K PL spectra, the Rietveld refinement, 27Al solid-state nuclear magnetic resonance (ss-NMR) spectra and time-resolved emission spectroscopy (TRS) confirm that Cr3+ has two different luminescence centers in the YMAS lattice. Benefiting from the site elimination strategy, the double luminescence centers are proven to be derived from Cr3+ ions occupying the two sites [Al1O6] and [Al2O4]. The NIR packaging device prepared using YMAS:2%Cr3+ has outstanding NIR output power and photovoltaic conversion efficiency as high as 45.7 mW@100 mA and 16.7%@100 mA, respectively. Owing to the excellent performance of the YMAS:2%Cr3+ sample, it presents excellent practical performance in plant growth, bioimaging, non-destructive testing and night vision.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2025
·
IF 3.6
Qinghong Meng,Jiaming Yuan,Wanjun Yu,Xiangming Li,Yaping Wang,Zhijun Xu,Ji-Guang Li
To meet the diverse requirements of the near-infrared (NIR) phosphor-converted light-emitting-diodes (NIR pc-LEDs) in various fields, high-performance broadband NIR-emitting phosphors are attracting growing interest. A novel garnet-type Gd 2 CaAl 3‒ y GaZrO 12 : y Cr 3+ (GCAGZ: y Cr) NIR phosphor with satisfactory luminescence efficiency and thermal stability was discovered in this work. The typical GCAGZ:0.04Cr phosphor exhibited highly efficient (IQE = 93.3 %, EQE = 20.0 %) broadband NIR emission with peaking at ∼748 nm (full-width at half-maximum ∼102 nm) and excellent thermal stability (88.3 %@423 K) under 450 nm light excitation, owing to the wide band gap of the garnet host, the relatively weak crystal field environment, and the exceedingly weak electron-phonon coupling effect. The NIR pc-LED device constructed by coating this GCAGZ:0.04Cr phosphor on a 450 nm blue LED chip presented outstanding NIR output power (∼44.8 mW) and photoelectric conversion efficiency (19.8 %) under a driving current of 100 mA, showing that this phosphor has huge potential utilized in the construction of NIR pc-LED applied in plant growth lighting, night vision, and non-invasive medical diagnosis.
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高影响因子
JOURNAL OF LUMINESCENCE
·
2023
·
IF 3.6
Yonglin Chen,Haoyi Wu,Yanmei Li,Yihua Hu
In this study, a Li 3 Mg 2 SbO 6 :Cr 3+ phosphor was prepared by high-temperature solid-phase reaction. The phosphors doped with 0.03Cr 3+ showed broadband emission at 805 nm, a wide spectral band of 200 nm at 435 nm excitation, an internal quantum efficiency of 80.8%, and the integrated emission intensity at 423 K of Li 3 Mg 2 SbO 6 :Cr 3+ is about 50% of that at room temperature . The phosphors conversion (pc) - light-emitting diodes (LEDs) with broadband near-infrared (NIR) emission were prepared using the Li 3 Mg 2 SbO 6 :Cr 3+ phosphor coating on blue LED chips. They achieved 10.4% photoelectric efficiency and 60.2 mW NIR output power at 210 mA. All results showed that the Li 3 Mg 2 SbO 6 :Cr 3+ phosphors had considerable potential in NIR spectroscopy applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Zixuan Wu,Xinxin Han,Yayun Zhou,Ke Xing,Sheng Cao,Li Chen,Ruosheng Zeng,Jialong Zhao,Bingsuo Zou
High performance broadband Near-infrared (NIR) phosphors with high efficiency and excellent thermal stability are highly demanded for constructing the next generation of NIR radiation sources. Herein, a broadband NIR emitting fluoride phosphor K 2 NaInF 6 :Cr 3+ peaking at 774 nm with a Full width at half maximum (FWHM) of 116 nm (1906 cm −1 ) was demonstrated. A high Internal quantum efficiency (IQE) value of 70.2% can be obtained in the as-synthesized K 2 NaInF 6 :Cr 3+ phosphor. Additionally, benefiting from the relatively weak electron phonon coupling effect, the phosphor also exhibits excellent anti-thermal quenching behavior with the emission intensity at 150 °C retaining 78.3% of that at room temperature. A high power NIR pc-LED with NIR radiant flux of 492.85 mW@1050 mA is obtained by combing the as-synthesized K 2 NaInF 6 :Cr 3+ phosphor and a blue LED chip. Utilizing this high power NIR pc-LED as NIR radiation source, high-resolution human hand veins imaging is realized with the assistance of a NIR camera, which indicates that K 2 NaInF 6 :Cr 3+ phosphor has high potential in biological applications.
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高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 32
·12451-12457
·
IF 5.7
Chaowei Yang,Xikun Zou,Mengqi Lyu,Mingkai Wei,Ziyi Wang,Xiaoyu Shuang,Xuejie Zhang,Bin Dong,Xinming Li,Yan Cong,Mingtao Zheng,Maxim S. Molokeev,Bingfu Lei
Far-red light plays a crucial role in plant growth, development, and flowering as a light signal. However, efficiently obtaining far-red light that well-matches the plant-photosensitive pigment Pfr remains a significant challenge in indoor agriculture. In this study, a far-red phosphor, BaGd2Al2Ga2GeO12:Cr3+(BGAGG:Cr3+), was successfully synthesized, using a high-temperature solid-phase method. Under 450 nm excitation, its emission maximum is at 712 nm with a full width at half maximum (FWHM) of 92 nm, which well-matches with Pfr. Combined with a blue LED chip, this phosphor was used to create a pc-LED device for bok choy and Micro-Tom cultivation experiments. Under the irradiation of far-red light, the biomass of bok choy increased by 39%, and the flowering and fruiting of Micro-Tom was promoted, demonstrating its potential in plant lighting applications.
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高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yaowu Wang,Nan Lin,Yiheng Yue,Jianfeng Wang,Yinyan Li,Zhenping Wu,Shiqing Xu,Gongxun Bai
Near-infrared (NIR) phosphors have emerged as novel luminescent materials across various fields due to their unique advantages of high penetration and invisibility. However, there is currently a lack of intelligent NIR phosphors that can achieve multimode stimuli responsive for sensing applications. In this study, we employed a high-temperature solid-phase reaction to incorporate Pr3+ into Cr3+-doped gallate magnetite SrGa12O19 phosphor, yielding a multimode luminescent intelligent NIR phosphor. Also, due to the inherent cation vacancies and defects in the matrix, the material not only exhibits brighter photoluminescence but also exhibits distinct NIR mechanoluminescence at a lower load. Notably, Pr3+-doped SrGa12O19:Cr3+ also demonstrates extended persistent luminescence and thermoluminescence effects. Finally, we combined the phosphor with the blue LED chip to develop a new multifunctional NIR pc-LED. Leveraging NIR’s unique penetrating ability, it can persist in biological tissues for prolonged periods, enabling optical inspection and offering a novel approach to password protection for anticounterfeiting measures. This intelligent NIR phosphor solution significantly expands the application potential of NIR light in food quality assessment and analysis.
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高影响因子
INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Yun Wang,Zhiyuan Pan,Sihan Feng,Lijie Gao,Xuejiao Wang,Qi Zhu,Ji-Guang Li
Near-infrared (NIR)-emitting phosphors with high quantum efficiency and thermal stability are crucial to NIR pc-LEDs. Garnet-structured (GdLuCa)(Al4–zSiCrz)O12 (z = 0.01–0.2) and (Gd2–xLuCax)(Al4.95–xSixCr0.05)O12 (x = 0.2–1.0) new phosphors with promising NIR luminescence under blue light excitation were designed and fabricated by a solid-state reaction in this work. It was analyzed that the Ca2+, Cr3+, and Si4+ ions would replace Gd3+ in [GdO8], Al1 in [Al1O6], and Al2 in [Al2O4], respectively, and the optimal Cr3+ content is z = 0.05, above which concentration quenching would occur via an electric dipole–dipole interaction. Increasing Ca2+/Si4+ substitution up to x = 1.0 led to luminescence enhancement by a factor of up to 1.85 and internal/external quantum efficiency (%) increment from ∼25.9/10.7 to 63.4/27.5, and all of the phosphors showed excellent thermal stability (I423 K/I298 K ≥ 87.6%). The luminescence properties of Cr3+ were discussed in detail through systematic investigation of the effects of Cr3+ and Ca2+/Si4+ contents on the crystal structure, local coordination, and crystal field. With the NIR pc-LED device integrated from the optimal phosphor (x = 1.0) and a blue LED chip, electroluminescence manifested potential applications in night vision and medical diagnosis.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Chao Li,Ying Li,Yi Xu,Jiyou Zhong
Near-infrared (NIR) phosphors as crucial components of NIR light sources have multifunctional and smart spectroscopy applications, prompting an increasing research interest in developing efficient and stable NIR materials. Focusing on this issue, the present study explored the luminescent properties of Cr 3+ -doped Ca 3 ZnMGe 3 O 12 (M = Zr, Hf, Sn and Ti) garnet family. These materials exhibit an emission peak falls within the range of 785–805 nm with a full width at half maximum (FWHM) varying from 114 to 123 nm. Among them, the Ca 3 ZnZrGe 3 O 12 :Cr 3+ phosphor shows the highest photoluminescence quantum yield (PLQY = 60.3 %) and an excellent thermal stability ( I 423K / I 298K = 77.51 %). Moreover, the performance of a prototype Ca 3 ZnZrGe 3 O 12 :Cr 3+ -containing NIR pc-LED device was estimated, which achieves an NIR output of 23.46 mW and a photonic efficiency of 14.09 % under 100 mA driving current. Non-destructive examination can be realized using this light source, demonstrating the good potential of the material in NIR spectroscopy applications.
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高影响因子
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