Article
Chemistry, Physical
Othmane Essahili, Afaf El Azzaoui, Mohamed Ilsouk, Omar Moudam
Summary: In this study, two beta-diketonate ligands were used to synthesize a series of europium complexes, which were then incorporated into PMMA films to investigate their thermal and long-term photoluminescence stability. The results showed that the stability of the complexes was affected by the structure of the beta-diketonate ligands, highlighting their potential for stable optoelectronic devices.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Multidisciplinary Sciences
Lei Lei, Yubin Wang, Weixin Xu, Renguang Ye, Youjie Hua, Degang Deng, Liang Chen, Paras N. Prasad, Shiqing Xu
Summary: The kinetics of time evolution of X-ray excited afterglow can be manipulated by selectively doping lanthanide activators in core-shell nanostructures. The intensity and spectral characteristics of the afterglow can be enhanced and tuned separately, enabling diverse and time-dependent color evolution. Additionally, a core/multi-shell structure can generate afterglow, upconversion and downshifting simultaneously, allowing for multimode time-dependent multicolor evolutions.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Alvaro Ruiz-Arias, Francisco Fueyo-Gonzalez, Carolina Izquierdo-Garcia, Amparo Navarro, Marta Gutierrez-Rodriguez, Rosario Herranz, Chiara Burgio, Antonio Reinoso, Juan M. Cuerva, Angel Orte, Juan A. Gonzalez-Vera
Summary: Lanthanides have unique photoluminescence properties and are ideal for biological imaging applications. However, photobleaching is a major drawback of photoluminescence imaging microscopy. In this study, a small aqueous-soluble lanthanide antenna was developed to mitigate photobleaching in PLIM microscopy, allowing for more stable imaging.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Keming Zhu, Hanyu Xu, Zhiying Wang, Zuoling Fu
Summary: Based on the excellent lanthanide compatibility of double perovskite La2MgTiO6, light-responsive multifunctional phosphors with four modes (Modes I-IV: Tm-Yb; Er-Yb; Ho-Yb; Er/Tm-Yb) were successfully constructed. The internal mechanism of high-purity and brightness upconversion photoluminescence and the temperature-sensing performance of the different modes were systematically explored. The results demonstrate the potential of these multifunctional phosphors for diverse applications and the design of advanced materials.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Woo Je Chang, Shawn Irgen-Gioro, Suyog Padgaonkar, Rafael Lopez-Arteaga, Emily A. Weiss
Summary: This paper investigates the photosensitization mechanism of Yb3+ and Sm3+ ions in CsPbCl3 perovskite nanocrystals, revealing that the first step of photosensitization is electron transfer, followed by the formation of the emissive species Ln(3+)*. This mechanistic understanding provides a framework for selecting the right combination of host matrix and Ln(3+) species for efficient photosensitization.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Sanchita Karmakar, Adrija Ghosh, Komal Prasad, Faruk Ahamed Rahimi, Darsi Rambabu, Ritesh Haldar, Tapas Kumar Maji
Summary: Five isostructural 1D porous coordination polymers (PCPs) were synthesized and characterized, showing different luminescent properties. These PCPs have the potential for binding and selective sensing of trace Cu-II ions, with one specific PCP able to detect Cu-II ions at a limit of 0.69 +/- 0.02 ppm. Additionally, the luminescence of one PCP can be recovered by introducing a chelating ligand without disrupting its structure, indicating potential applications in sensing.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Hua-Jiang Yu, Haoran Wang, Fang-Fang Shen, Feng-Qing Li, Ying-Ming Zhang, Xiufang Xu, Yu Liu
Summary: The utilization of azobenzene-based photoisomerization has been explored to control the morphology of supramolecular assemblies and regulate biological processes. However, the design of azobenzene-involved nanoconstructs with switchable photoluminescence remains challenging. In this study, a multicomponent nanosystem derived from azobenzene is reported and its function as a supramolecular lanthanide photoswitch is investigated. The mutual cooperation of host-guest complexation and metal-ligand coordination enables the photoswitchable luminescence abilities of azobenzenes, which holds promise for the development of advanced light-responsive smart materials.
Article
Chemistry, Multidisciplinary
Yang Wei, Yue Pan, Enlong Zhou, Ze Yuan, Hao Song, Yilin Wang, Jie Zhou, Jiahui Rui, Mengjiao Xu, Lixin Ning, Zhanning Liu, Hongyu Wang, Xiaoji Xie, Xiaobin Tang, Haiquan Su, Xianran Xing, Ling Huang
Summary: Despite extensive efforts, little progress has been made in combating thermal quenching in luminescent materials. This study demonstrates that controlled annealing can form Frenkel defect in Sc-2(WO4)(3):Ln (Ln=Yb, Er, Eu, Tb, Sm), which acts as an energy reservoir and transfers the stored excitation energy to Ln(3+) upon heating. This discovery opens up new avenues for reliable generation of high-temperature luminescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Malgorzata Gil-Kowalczyk, Renata Lyszczek, Anna Jusza, Ryszard Piramidowicz
Summary: Novel hybrid materials based on PMMA matrix and lanthanide carboxylates were synthesized and analyzed for their potential application in optically active polymer-based optical fibers. The luminescent features of lanthanide complexes were well preserved after introduction into the PMMA host, without significant impact on thermal properties, enabling further processing into optical fibers.
Review
Chemistry, Analytical
Yong Li, Chen Chen, Fangfang Liu, Jinliang Liu
Summary: Fluctuations of intracellular ions, biomolecules, and other conditions play crucial roles in biological processes. Upconversion nanoparticles (UCNPs) show unique properties for biomedical detection. This review summarizes the synthesis, biomedical applications, and future perspectives of UCNPs.
Review
Chemistry, Inorganic & Nuclear
Akhilesh Kumar Singh
Summary: Lanthanide-based luminescent hybrid materials, which consist of organic moieties as sensitizers and inorganic lanthanide ions as activators, have been extensively studied in fields such as sensing, LEDs, security inks, bioimaging, and improving the stability/efficiency of halide perovskite-based optoelectronic devices. Recent developments include near-infrared dye-sensitized hybrid upconverting materials and the use of lanthanide-based hybrid materials to enhance the stability and efficiency of halide perovskite optoelectronic devices.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Materials Science, Ceramics
T. Thor, K. Rubesova, V Jakes, D. Mikolasova, J. Cajzl, J. Havlicek, L. Nadherny, F. Prusa, R. Kucerkova, M. Nikl
Summary: Dense ceramics of Ln:Lu2O3 (Ln = Pr, Eu, Tb, Dy) were successfully obtained using spark plasma sintering (SPS), showing good optical properties and luminescent characteristics. The transparency and light yield of the sintered ceramics were improved by further annealing.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Polymer Science
Qing-Feng Li, Shaohua Sun, Shaowen Chu, Lin Jin, Jin-Tao Wang, Zhenling Wang
Summary: This study successfully constructs a luminescent hydrogel with excellent adhesion performance by utilizing lanthanide complexes induced crosslinking and physical interaction. The addition of lanthanide complexes significantly improves the adhesive strength and mechanical behavior of the hydrogel.
Article
Chemistry, Analytical
Zhuo Wang, Guotao Sun, Jiabo Chen, Yao Xie, Hong Jiang, Lining Sun
Summary: Lanthanide-doped metal-organic frameworks (Y/Yb/Er-MOF) were synthesized using a low-cost solvothermal method. The Y/Yb/Er-MOF showed cooperative upconversion luminescence of Yb3+ and upconversion luminescence of Er3+ (Yb3+-sensitized) when irradiated by a continuous wave 980 nm laser. The RH responsiveness of Y/Yb/Er-MOF was studied to explore its potential application in humidity sensors, and a linear relationship between the response and RH was observed in the range of 11-95%. The Y/Yb/Er-MOF demonstrated good cycle stability and recovery ratio, making it a promising humidity-sensitive material for various applications.
Article
Chemistry, Multidisciplinary
Jun Du, Jinliang Liu, Ying Chen, Yuefeng Zhao, Yuhao Li, Yuqing Miao
Summary: A fast and facile preparation strategy for bismuth-based upconversion nanomaterials has been reported, which improves the crystallinity and upconversion luminescence intensity. The temperature measurement range has also been extended by optimizing the doping ratio and adjusting the synthetic solvent strategy. This method provides a feasible strategy for the construction of novel fluorescent temperature probes.
Article
Materials Science, Multidisciplinary
L. J. Borrero-Gonzalez, Selene Acosta, Carla Bittencourt, Maja Garvas, Polona Umek, L. A. O. Nunes
Article
Optics
Paulo R. S. Santos, Dariston K. S. Pereira, Israel F. Costa, Iran F. Silva, Hermi F. Brito, Wagner M. Faustino, Albano N. Carneiro Neto, Renaldo T. Moura Jr, Maria H. Araujo, Renata Diniz, Oscar L. Malta, Ercules E. S. Teotonio
JOURNAL OF LUMINESCENCE
(2020)
Article
Engineering, Environmental
Olena Artiushenko, Vladimir Zaitsev, Wendy S. Rojano, Gabriel A. Freitas, Michael Nazarkovsky, Tatiana D. Saint'Pierre, Jiang Kai
Summary: The composition of the immobilized layer in organomineral materials is crucial for metal adsorption properties. A rationally designed surface-assembling synthesis of organo-silica with covalently immobilized DPA fragments has shown to be efficient in quantitatively recovering almost all Rare Earth elements from multielement solutions. The adsorbent demonstrated excellent performance with over 97% REEs recovery in consecutive adsorption/desorption cycles, making it a promising option for REEs recovery from acidic leaching solutions.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Review
Biochemistry & Molecular Biology
Jose Miranda de Carvalho, Cassio Cardoso Santos Pedroso, Matheus Salgado de Nichile Saula, Maria Claudia Franca Cunha Felinto, Hermi Felinto de Brito
Summary: Microwave-assisted synthesis is a rapid and efficient method for producing luminescent inorganic materials with high homogeneity and diverse morphology.
Article
Biochemistry & Molecular Biology
Alex Santos Borges, Jose Diogo L. Dutra, Gabriel Silva Santos, Renata Diniz, Jiang Kai, Maria Helena Araujo
Summary: The preparation and photoluminescent properties of a new Eu complex were reported. The complex was characterized and modeled at both experimental and theoretical levels, showing good agreement in terms of structure and emission properties.
JOURNAL OF MOLECULAR MODELING
(2021)
Article
Materials Science, Multidisciplinary
L. G. Merizio, E. Bonturim, R. U. Ichikawa, I. G. N. Silva, V. C. Teixeira, L. C. V. Rodrigues, H. F. Brito
Summary: A rapid and green MASS method was developed for synthesizing persistent luminescent materials, reducing synthesis time to less than 5% of the traditional method. The luminescent material prepared by MASS method showed higher emission intensity and improved optical properties, significantly enhancing luminescence efficiency. Furthermore, in-situ XANES analysis was conducted to understand the reduction process of Eu3+ under CO(g) atmosphere.
Article
Chemistry, Physical
Leonardo H. C. Francisco, Renan P. Moreira, Maria C. F. C. Felinto, Veronica C. Teixeira, Hermi F. Brito, Oscar L. Malta
Summary: This study presents the development of SrAl2O4:Eu2+,Dy3+ phosphors prepared by the Pechini method, functionalized by incorporating a Eu3+ beta-diketonate complex within a SiO2-R network. The functionalized materials showed absorption shifts and emission band intensification, indicating effective interactions between the components. The modified materials exhibited increased absorption range and persistence decay time under near band gap excitation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Michael Nazarkovsky, Bozena Czech, Alicja Zmudka, Viktor M. Bogatyrov, Olena Artiushenko, Vladimir Zaitsev, Tatiana D. Saint-Pierre, Rafael C. Rocha, Jiang Kai, Yutao Xing, Wellington D. G. Goncalves, Amanda G. Veiga, Maria Luiza M. Rocco, Syed Hamza Safeer, Mariia Galaburda, Victor Carozo, Ricardo Q. Aucelio, Richard J. Caraballo-Vivas, Olena Oranska, Jairton Dupont
Summary: Novel colorized zinc oxide-nanosilica composites were synthesized and analyzed, showing a direct correlation between ZnO concentration and color/optical properties. The most active sample had a higher ZnO concentration and exhibited significant visible light absorbance and luminescence. XPS studies revealed the formation of nanocomposites and impurities in ZnO that contributed to the optical and catalytic behavior, confirming the potential for wastewater detoxification.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Materials Science, Biomaterials
Zahid Ullah Khan, Mayara Klimuk Uchiyama, Latif Ullah Khan, Koiti Araki, Hiro Goto, Maria Claudia Franca Cunha Felinto, Ana Olivia de Souza, Hermi Felinto de Brito, Magnus Gidlund
Summary: The study focused on the development of water-dispersible Eu3+/Mn2+ co-doped ZnSe@ZnS core/shell QDs as bionanoprobes for biomedical applications, evaluating their biocompatibility, fluorescence behavior, and cellular uptake and exocytosis. By co-incorporating Eu3+/Mn2+ codopants, the QDs exhibited tunable emission colors and enhanced emission intensity, with high cell viability and no cell activation observed. The QDs were internalized by cells predominantly through macropinocytosis and lipid raft-mediated endocytic pathways, showing color-tunable fluorescence and increasing intensity over time.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Nanoscience & Nanotechnology
Attiq Ur Rehman, Latif Ullah Khan, Hermi Felinto de Brito, Zahid Ullah Khan, Asad Muhammad Khan
Summary: This study utilized modified CTAB to synthesize water dispersible phosphor materials, expanding the possibilities of size and shape control and reducing the usage of lanthanides while maintaining the overall properties of the phosphor materials.
APPLIED NANOSCIENCE
(2022)
Article
Optics
Lucca Blois, Albano N. Carneiro Neto, Oscar L. Malta, Hermi F. Brito
Summary: The understanding of intramolecular energy transfer (IET) processes in photoluminescent Eu3+ chelates is crucial for the design of new efficient emitting devices, sensors, optical thermometers, etc. This study presents theoretical simulations of the transients related to the ligand and lanthanide excited states, showing that the introduction of the (7)F1 thermal state significantly affects all transients, especially the predicted curve of the ligand S-1 state, which can be experimentally measured.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Analytical
Juliana da S. Padilha, Marcelo F. M. F. Azevedo, Jarol R. Miranda-Andrades, Anna De Falco, Jiang Kai, Ricardo Q. Aucelio
Summary: In this study, an Eu(III) beta-diketonate complex was synthesized and used as a photoluminescent probe to determine methylmercury (CH3Hg+). The probe showed a linear correlation between its luminescence suppression and the concentration of CH3Hg+, making it a selective and pre-concentration functional tool for the analysis of produced water samples.
Article
Pharmacology & Pharmacy
Bianca A. da Silva, Michael Nazarkovsky, Helmut Isaac Padilla-Chavarria, Edith Alejandra C. Mendivelso, Heber L. de Mello, Caue de S. C. Nogueira, Rafael dos S. Carvalho, Marco Cremona, Volodymyr Zaitsev, Yutao Xing, Rodrigo da C. Bisaggio, Luiz A. Alves, Jiang Kai
Summary: The study focused on the synthesis and biocompatibility analysis of doped nanoparticles with potential cancer treatment applications. These nanoparticles exhibited good crystallinity and uniform distribution of rare earth oxides.
Article
Chemistry, Multidisciplinary
Cesar S. Cunha, Oscar L. Malta, Huayna Terraschke, Hermi F. Brito
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Zubair Ahmed, Harold C. Avila, Rafael S. Carvalho, Jiang Kai, J. A. L. C. Resende, Elisa Bandini, Andrea Barbieri, Marco Cremona
NEW JOURNAL OF CHEMISTRY
(2020)