ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Zhichao Liu,Xulong Lv,Yanjie Liang,Qian Chen,Peng Zhang,Doudou Zhang,Xingliang Luo,Xuhui Xu
Deep ultraviolet (UV) mechanoluminescence (ML) materials hold broad application prospects in bright-field visualization detection, solid-blind imaging, and information storage due to their shorter emission wavelengths. However, current research on deep UV ML materials primarily focuses on trap control to suppress their reuse. Here, we enhance the deep UV ML of Gd 3+ ions by constructing a 4f-5d coupling between Pr 3+ ions and the 6 P 7/2 energy level of Gd 3+ ions in the wide-bandgap Lu 3 Al 2 Ga 3 O 12 with a garnet structure. The results suggest that the deep UV ML in Lu 3 Al 2 Ga 3 O 12 : Pr 3+ , Gd 3+ is trap-independent, and its self-recovery property originates from the continuous triboelectric charge transfer between polydimethylsiloxane and the ML particles. Sterilization experiments using deep UV ML against pathogenic E. coli highlight the potential of deep UV ML materials for continuous sterilization applications.
研究领域:
材料科学
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光学材料
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力致发光
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固态物理
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抗菌技术
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2018
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IF 3.789
Pan Sun,Kun Huang,Huizhou Liu
Understanding the essence of the specific salt effect on the enhancement of the transport of metal ions across the liquid/liquid interface during the process of solvent extraction is of crucial importance for the development of a new approach to extract and selectively separate various valuable metals from complex aqueous solutions. However, some abnormal experimental phenomena involved in the salt effect on the liquid/liquid solvent extraction could not be understood only from the conventional interpretation based on the salting-out ability of salt ions. The knowledge into the microscopic mechanism behind the specific salt effect was urgent. Herein, as an example, the effect of adding various salts on the extraction performance of rare earth ion Pr3+ using trioctylphosphine oxide (TOPO) as the organic extractant was investigated. It was revealed that the difference in the interface propensity of different salt anions enriched at the organic–aqueous two-phase interface played a crucial role in promoting the interaction of TOPO molecules with Pr3+ ions, despite the occurrence of the salting-out effect of those salt anions with the increase of their concentrations in aqueous solutions. The interfacial interaction mechanism obtained by molecular dynamics simulations revealed that both the interface propensity and the salting-out ability of the coexisting salt anions contributed to the enhancement in the extraction of Pr3+ into the TOPO organic phase. However, when the concentrations of coexisting salts in aqueous solutions were low enough, the extraction of Pr3+ was mainly dominated by the interface propensity of those added salt anions but not their salting-out ability. With the increase in the concentration of salts, the salting-out effect gradually became significant and, therefore, began to join with the interface propensity of salt anions to co-dominate the transport of Pr3+ ions across the liquid/liquid interface. The present study highlights the microscopic nature of the salt effect on promoting the extraction of rare earth ions and suggests that the interaction of organic extractant molecules with rare earth ions at liquid/liquid interface was dependent not only upon the salting-out ability of the coexisting salt ions but also their interface propensity.
研究领域:
化学
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材料科学
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环境科学
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物理化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF LUMINESCENCE
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2024
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IF 3.3
Chenglong Xia,Jiahui Yang,Bingyang Zeng,Chunmiao Cui,Haoyuan Weng,Yue Guo,Xiaoguang Liu,Ling Li
This study successfully synthesized Na 5 Y(WO 4 ) 4 doped with Sm³⁺, Pr³⁺, and Tb³⁺ using a high-temperature solid-state method. Photoluminescence spectra revealed that Na 5 Y(WO 4 ) 4 :Sm³⁺ phosphors emits a strong red glow at 646 nm under the excitation of 405 nm, and has an extremely high quantum yield, suggesting their suitability for plant growth LED lighting applications. In contrast, Na 5 Y(WO 4 ) 4 :Pr³⁺ phosphors displayed a lower efficiency but still aligned well with the red-wavelength absorption spectra of plants. Additionally, Na 5 Y(WO 4 ) 4 :Tb³⁺ phosphors demonstrated strong green emission under UV light, indicating potential applications in fingerprint detection. The Site Occupancy Theory (SOT) was utilized to explain the preferential occupation of dopant ions, showing that Sm³⁺ and Tb³⁺ preferred Y1 sites, whereas Pr³⁺ favored Na2 sites.
研究领域:
材料科学
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光学
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农业科学
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法医学
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2021
·
IF 6.057
Zipeng Yin,Ling Zhu,Zijian Lv,Meijin Li,Dianping Tang
Persistent luminescent nanoparticles (PLNPs) are a class of materials with excellent optical properties , which can continue to emit light for a long time after removing the excitation light source. This feature enables PLNPs to be used for development of biological detection modes without autofluorescence background. In this study, we prepared Zn 2 GeO 4 : Mn 2+ , Pr 3+ (ZGOMP) nanorods through a one-pot hydrothermal method . Using the pH-responsive luminescence behavior of ZGOMP, we developed an autofluorescence-free biosensor using ZGOMP as a probe and gluconic acid as a quencher to detect prostate-specific antigen (PSA). Hybridization chain reaction (HCR) and magnetic separation system were introduced in the design to achieve efficient signal amplification. Under the optimal conditions, the as-designed autofluorescence-free sensing platform showed high selectivity , and showed a good luminescence response to PSA within the linear range of 0.001–10 ng/mL at a detection limit of 0.64 pg/mL. The excellent analytical performance shows that the current strategy provides an effective platform for clinical sample analysis.
研究领域:
生物传感
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纳米技术
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分析化学
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医学诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2013
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IF 5.008
Lining Sun,Yannan Qiu,Tao Liu,Jin Z. Zhang,Song Dang,Jing Feng,Zhijuan Wang,Hongjie Zhang,Liyi Shi
A series of ternary lanthanide β-diketonate derivatives covalently bonded to xerogels (named as Ln-DP-xerogel, Ln = Sm, Yb, Nd, Er, Pr, Ho) by doubly functionalized alkoxysilane (dbm-Si) was synthesized in situ via a sol-gel process. The properties of these xerogel materials were investigated by Fourier-transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), diffuse reflectance (DR) spectroscopy, thermogravimetric analyses, and fluorescence spectroscopy. The data and analyses suggest that the lanthanide derivatives have been covalently grafted to the corresponding xerogels successfully. Of importance here is that, after excitation with visible light (400–410 nm), the xerogels all show characteristic visible (Sm3+) as well as near-infrared (NIR; Sm3+, Yb3+, Nd3+, Er3+, Pr3+, Ho3+) luminescence of the corresponding Ln3+ ions, which is attributed to the energy transfer from the ligands to the Ln3+ ions via an antenna effect. Exciting with visible light is advantageous over UV excitation. Furthermore, to the best of our knowledge, it is the first observation of NIR luminescence with visible light excitation from xerogels covalently bonded with the Sm3+, Pr3+, and Ho3+ derivatives. Compared to lanthanide complexes (Ln = Er, Nd, Yb) functionalized periodic mesoporous organosilica (PMO) materials that exhibit similar optical properties reported in our previous work, the Ln-DP-xerogel (Ln = Sm, Yb, Nd, Er, Pr, Ho) in this case offer advantages in terms of ease of synthesis and handling and potentially low cost for emerging technological applications. Development of near-infrared luminescence of the lanthanide materials with visible light excitation is of strong interest to emerging applications such as chemosensors, laser systems, and optical amplifiers.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry B
·
2023
·Vol. 11
·期 12
·2745-2753
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IF 7
Hang Zhao,Liang Zhang,Jinsuo Lu,Shouning Chai,Jinliu Wei,Yuning Yu,Ruoyan Miao,Lvling Zhong
Bacterial infections caused by the growth and reproduction of pathogenic bacteria on wounds are one of the main reasons that hinder wound healing. Antibacterial wound dressings protect wounds from bacterial infections. Herein, we developed a polymeric antibacterial composite film using polyvinyl alcohol (PVA) and sodium alginate (SA) as the substrate. The film used praseodymium-doped yttrium orthosilicate (Y2SiO5: Pr3+, YSO-Pr) to convert visible light into short-wavelength ultraviolet light (UVC) to kill bacteria. The YSO-Pr/PVA/SA showed upconversion luminescence in photoluminescence spectrometry tests, and the emitted UVC inhibited Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli and Pseudomonas aeruginosa) bacteria in antibacterial tests. In vivo animal tests showed that YSO-Pr/PVA/SA is effective and safe for inhibiting bacteria in real wounds. The in vitro cytotoxicity test further confirmed the good biocompatibility of the antibacterial film. In addition, YSO-Pr/PVA/SA exhibited sufficient tensile strength. Overall, this study demonstrates the potential of upconversion materials for use in medical dressings.
研究领域:
材料科学
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生物医学工程
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伤口护理
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抗菌技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）