Article
Chemistry, Applied
Hongqi Chen, Wei Tang, Yunchun Liu, Lun Wang
Summary: In this study, a quantitative image analysis method based on cyanine dye-upconversion nanoparticles composite luminescent nanoprobe for the detection of nitrite was developed. The method showed fast response time, low sample consumption, and powerful data support, and was successfully applied for the analysis of nitrite in environmental water and food samples.
Article
Chemistry, Analytical
Wei Tang, Ruo Mi, Lun Wang, Hongqi Chen
Summary: The system combines quantitative image analysis with magnetic separation technology, showing low background interference and high separation efficiency, making it suitable for application in biology.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Engineering, Chemical
Marina Vukovic, Ivana Dinic, Paula Jardim, Smilja Markovic, Ljiljana Veselinovic, Marko Nikolic, Lidija Mancic
Summary: This paper reports the successful synthesis of hexagonal NaYF4:Yb,Er mesocrystals using mild sonochemical methods at low temperature. The formation process of crystal structures is investigated and it is found that the pure beta phase can be obtained after 2 hours of pulsed sonication. The transition from the alpha phase to the beta phase is concluded to be a result of dissolution-recrystallization process based on the analysis of nanoparticle morphology.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Analytical
Ross Birch, Jochen Bruckbauer, Marta Gajewska, Grzegorz Cios, Robert Pal, Lewis E. MacKenzie
Summary: This research indicates that the molecular weight and relative amount of PVP can greatly influence the morphology and diameter of NaYF4:Yb,Er upconversion nanoparticles (UCNPs). Reducing the quantity of PVP can result in a greater range of UCNP diameters and the production of unexpected rhombus-shaped UCNPs. The study highlights the importance of carefully considering PVP content in the synthesis of UCNPs.
METHODS AND APPLICATIONS IN FLUORESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Huaze Zhu, Yongqiang Yang, Yuyang Kang, Ping Niu, Xiangdong Kang, Zhiqing Yang, Hengqiang Ye, Gang Liu
Summary: Integrating upconversion materials with visible light active photocatalysts can enhance the efficiency of photocatalysts. The interface contact between upconversion material and photocatalyst has potential influence on the properties and performance of the system. By modulating the microstructures through annealing process, the hydrogen evolution activity of the photocatalyst was greatly increased.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Pawel Mazierski, Juganta K. Roy, Alicja Mikolajczyk, Ewelina Wyrzykowska, Tomasz Grzyb, Pablo Nicolas Arellano Caicedo, Zhishun Wei, Ewa Kowalska, Adriana Zaleska-Medynska, Joanna Nadolna
Summary: The NaYF4-Er-Yb-TiO2 photocatalyst synthesized by hydrothermal process exhibits Er3+ and F- surface doping at the TiO2 crystal boundaries and UCPs particles, with the predicted electronic structure indicating that the formation of new Er-4f states is crucial for its photocatalytic performance. Luminescence spectroscopy measurements reveal up-conversion energy transfer from Yb3+ to Er3+ ions in UCPs particles.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Xiaoxiong Zhang, Xiaohong Qin, Wenjun Zhang
Summary: A mixture of NaYF4:Yb, Er and nitrogen-doped graphene quantum dots (N-GQDs) was synthesized using a simple one-pot hydrothermal method, displaying different luminescent colors under different light irradiation wavelengths. The synthesized mixture, when integrated into a polyvinyl alcohol (PVA) matrix, forms a transparent luminescent film with potential applications in anti-counterfeiting packaging.
Article
Optics
Nattha Buatong, Balaji Rao Ravuri, Wisanu Pecharapa
Summary: Multicomponent nanoheterostructures that combine upconverting materials and semiconductor nanocrystals have gained increasing interest in recent years. The interaction between these components can improve the properties of existing materials and induce new materials with enhanced electronic properties. In this study, a new nanoheterostructure composed of NaYF4:Yb,Er decorated with AgInS2 nanocrystals was synthesized via a thermal decomposition reaction. The combination of upconverting and semiconducting materials in the NaYF4:Yb,Er/AgInS2 nanoheterostructure exhibited photoactivity under NIR irradiation. Compared to pure AgInS2 nanocrystals, the NaYF4:Yb,Er/AgInS2 nanoheterostructure showed stronger light absorption characteristics in the visible region.
Article
Biochemistry & Molecular Biology
T. M. Dung Cao, T. T. Giang Le, Sylvia Turrell, Maurizio Ferrari, Quang Vinh Lam, T. T. Van Tran
Summary: NaYF4:Er,Yb upconversion luminescent nanoparticles were prepared by hydrothermal methods with MA grafting for hydrophilic properties, showing high stability and emission intensity suitable for screen printing applications.
Article
Chemistry, Physical
Christian Wurth, Bettina Grauel, Monika Pons, Florian Frenzel, Philipp Rissiek, Kerstin Rucker, Markus Haase, Ute Resch-Genger
Summary: This study systematically analyzed the dependence of UC luminescence quantum yield on the dopant concentration in solid NaYF4:Yb,Er/NaYF4:Lu upconversion core/shell nanocrystals. The results showed that high Yb3+ concentrations can increase the particle absorption cross section and brightness of UCNC, while high Er3+ concentrations can decrease the luminescence brightness.
Article
Chemistry, Physical
Shuanglong Ye, Lei Lei
Summary: This study successfully prepared lanthanide-doped cubic NaYF4 core and core/shell nanocrystals and found that the thickness of the shell can be adjusted by changing the reaction temperature. The cubic NaYF4: 20Yb2Er@NaYF4 core/shell nanocrystals exhibited excellent temperature sensing performance.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Zhe Wang, Xueshuang Li, Shengyan Yin, Xingyuan Guo, Weiping Qin
Summary: Monodisperse cubic NaYF4: 20%Yb, 2%Er nanoparticles were synthesized successfully using high-temperature thermal decomposition method. The crystal structure of the nanoparticles changed from cubic to hexagonal phase with the increase in Eu3+ concentration, resulting in decreased upconversion luminescent intensities. Energy transfer between Er3+ and Eu3+ ions was observed with near infrared light excitation.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yang Lou, Siqi Wu, Guanlong Wang, Xiaoli Dong, Xiufang Zhang
Summary: The low utilization of solar energy can be improved by using up-conversion photoluminescence to enhance photocatalytic ability. In this study, a new photocatalyst, NaYF4: Yb, Tm nanoparticles (NYT) embedded in NH2-MIL-125(Ti) (NYT@NH2-MIL-125(Ti)), was developed to efficiently degrade pollutants under full-spectrum illumination. The photocatalytic activity of NYT@NH2-MIL-125(Ti) was significantly enhanced compared to NH2-MIL-125(Ti). This work deepens the understanding of constructing high-efficiency photocatalysts with broad spectrum response and promotes the application of photocatalysis in water pollution control.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Physical
Qi Luo, Jian Yu, Xueshuang Deng, Ming Cao, Shifang Ma, Qiongxin Hua, Dan Xue, Fenghui An
Summary: This study aims to improve the efficiency of perovskite solar cells (PSCs) by using a spectral conversion film component with antireflection properties. By applying a specific nanorod/nanosphere-based thin film, the device efficiency is improved, and the light transmittance is optimized, resulting in enhanced photovoltaic performance.
Article
Chemistry, Inorganic & Nuclear
Xuhua Liang, Jun Fan, Yanyan Zhao, Ruyi Jin
Summary: The study successfully fabricated UCNP@MSNs-FA nanoparticles with excellent UCL property and tumor-targeting capability by modifying the surface with folic acid. The composite exhibited good biocompatibility, high drug loading content, and encapsulation efficiency for DOX, along with sustained drug release in a slightly acidic microenvironment. Additionally, the UCNP@MSNs-FA system showed specific cytotoxicity to FR-positive cells, indicating its potential for targeted anti-cancer drug delivery and cell imaging to enhance therapeutic efficacy.
JOURNAL OF CLUSTER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zhennan Wu, Huiwen Liu, Tingting Li, Jiale Liu, Jun Yin, Omar F. Mohammed, Osman M. Bakr, Yi Liu, Bai Yang, Hao Zhang
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Multidisciplinary
Jiale Liu, Ye Tian, Zhennan Wu, Lin Ai, Yi Liu, Jianli Cui, Weili Yu, Hao Zhang, Bai Yang
Article
Chemistry, Physical
Bekir Turedi, Kwang Jae Lee, Ibrahim Dursun, Badriah Alamer, Zhennan Wu, Erkki Alarousu, Omar F. Mohammed, Namchul Cho, Osman M. Bakr
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Multidisciplinary
Zhennan Wu, Yonghua Du, Jiale Liu, Qiaofeng Yao, Tiankai Chen, Yitao Cao, Hao Zhang, Jianping Xie
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Multidisciplinary
Zhennan Wu, Qiaofeng Yao, Osburg Jin Huang Chai, Nan Ding, Wen Xu, Shuangquan Zang, Jianping Xie
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Bihan Zhang, Zhennan Wu, Yitao Cao, Qiaofeng Yao, Jianping Xie
Summary: Increasing surface charge effectively improves stability of hydrophilic gold nanoclusters in solution, with sulfonic thiolate ligands showing promising results. This strategy can enhance stability under various conditions, making it suitable for biomedical and catalytic applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Jiale Liu, Ye Tian, Lin Ai, Zhennan Wu, Dong Yao, Yi Liu, Bai Yang, Hao Zhang
Review
Chemistry, Multidisciplinary
Zhihe Liu, Zhennan Wu, Qiaofeng Yao, Yitao Cao, Osburg Jin Huang Chai, Jianping Xie
Summary: This review article focuses on the correlation between the structures, physical and chemical properties of metal nanoclusters and their applications, highlighting the basic principles of structure- and property-oriented applications of metal nanoclusters. It provides guidance for the design of metal nanoclusters with desirable properties to meet application needs.
Article
Chemistry, Multidisciplinary
Xiufeng Wu, He Shao, Yuan Zhong, Lifang Li, Wenda Chen, Biao Dong, Lin Xu, Wen Xu, Donglei Zhou, Zhennan Wu, Hongwei Song, Xue Bai
Summary: By engineering the lattice symmetry of perovskite and combining NO3- ion passivation and Ca2+ ion doping, highly luminescent and robust alpha-CsPbI3 nanocrystals with excellent stability, photoluminescence quantum yield, and conductivity are obtained. These nanocrystals are suitable for use in light-emitting diode devices.
Review
Chemistry, Multidisciplinary
Feng Jiang, Zhennan Wu, Min Lu, Yanbo Gao, Xin Li, Xue Bai, Yuan Ji, Yu Zhang
Summary: The appearance of metal halide perovskites allows for efficient and broadband emission in single-component materials. The characteristics of self-trapped excitons and ns(2) ions play important roles in achieving broadband emission.
ADVANCED MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Yuan Zhong, Zhennan Wu, Yu Zhang, Bin Dong, Xue Bai
Summary: This review summarizes recent advances in the chiroptical properties of lanthanide complexes, covering multiple scales from isolated mononuclear individuals, discrete polynuclear oligomers, to infinite hierarchical assemblies. The basic concept and important parameters for the assessment of CPL activity are introduced. The discussion includes mononuclear lanthanide complexes coordinated with different types of antennas, as well as unique chirality transfer and induction in achiral lanthanide complexes. The chiroptical properties in discrete polynuclear lanthanide oligomers and infinite hierarchical lanthanide assemblies are systematically discussed, along with the state-of-the-art applications of CPL-active lanthanide complexes.
Review
Chemistry, Multidisciplinary
Yan Xiao, Zhennan Wu, Qiaofeng Yao, Jianping Xie
Summary: Metal nanoclusters (MNCs) are small metal-organic aggregates with molecule-like properties, particularly strong and bright luminescence, making them useful in biosensing and bioimaging applications. Aggregation-induced emission is a feasible mechanism for controlling the luminescence of MNCs. Despite the lack of a systematic summary in current literature, research on the design and practicality of luminescent MNCs for biomedical applications is advancing.
Review
Chemistry, Multidisciplinary
Qiaofeng Yao, Zhennan Wu, Zhihe Liu, Yingzheng Lin, Xun Yuan, Jianping Xie
Summary: "Thiolate-protected noble metal nanoclusters exhibit molecule-like properties, behaving as molecular entities and displaying structurally sensitive molecular reactivity to ions, molecules, and other nanoclusters. Their molecular interactions and reactions are crucial for applications in various fields, yet there is a lack of systematic summary in the current literature. Advances in synthesis and characterization techniques allow for the production of noble metal nanoclusters with molecular purity and precise atomic resolution, revealing active sites for molecular interactions and reactions. Understanding and utilizing these interactions and reactions in synthesis, self-assembly, and applications can increase the acceptance of metal nanoclusters in various fields."
Article
Materials Science, Multidisciplinary
Zhennan Wu, Qiaofeng Yao, Shuangquan Zang, Jianping Xie
ACS MATERIALS LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Huiwen Liu, Zhennan Wu, Jieren Shao, Dong Yao, Hang Gao, Yi Liu, Weili Yu, Hao Zhang, Bai Yang
