Article
Chemistry, Applied
Vladislav M. Korshunov, Daria A. Metlina, Victor O. Kompanets, Alexey A. Melnikov, Ricardo O. Freire, Gustavo S. Silva, Sergey Chekalin, Ilya Taydakov
Summary: A series of /3-diketonate Eu3+ complexes with minor variations in the chemical structure of the diketone ligand were systematically studied. Their photophysical properties were investigated using UV-Vis absorption and femtosecond transient absorption spectroscopy. It was found that changing the fluorinated chain length of the /3-diketone ligand and the ancillary ligands significantly affects the relaxation processes and electronic energy transfer pathways in the coordination compound.
Article
Chemistry, Inorganic & Nuclear
Anuj Dalal, Kapeesha Nehra, Anjli Hooda, Sitender Singh, Shri Bhagwan, Devender Singh, Sumit Kumar
Summary: This study reports the synthesis and photoluminescence performance of a series of heteroleptic europium complexes with fluorinated chromophoric ligand and 2,2'-bipyridine or their derivatives as ancillary ligand. The structure and photoluminescence properties of the synthesized complexes were analyzed using various spectroscopic techniques. The experimental and theoretical results from LUMPAC software show that the prepared complexes exhibit red emissive nature and can be used as red light emitting materials in various display devices.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Optics
Huidong Tang, Tao Zhang, Longzhu Li, Yuwei Chen, Feifei Li
Summary: Eu3+-doped La2Ti6O15 nanoparticles were prepared via sol-gel process and demonstrated excellent luminescence and thermal stability. These phosphors show bright red luminescence and high efficiency in blue and near-UV excitation regions, making them potential candidates for high-power warm white-LED applications.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Kapeesha Nehra, Anuj Dalal, Anjli Hooda, Sitender Singh, Devender Singh
Summary: Highly red luminescent octacoordinated complexes were successfully synthesized by coordinating Eu(III) ion with auxiliary ligands. Spectroscopic characterization revealed the red luminescent properties of the complexes, indicating effective sensitization of the trivalent europium ion. Various parameters were calculated from the photoluminescence emission data, and color parameters suggested the red luminous behavior of the synthesized complexes. The research findings indicate the potential applications of these complexes in solid state lighting, OLEDs, and flat panel displays.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Applied
You-Yu Wang, Li Song, Jian-Teng Wang, Yi-Ming Zhou, Ze-Qi Dai, Wei Liu, Jia-Yu Guo, Hang-Yan Shen, Wen-Xiang Chai
Summary: A thin film-based fluorescence sensor for rapid and accurate detection of ammonia was developed using a ternary europium (III) complex probe. The sensor exhibited highly sensitive and selective response to ammonia, achieving a low limit of detection of 2.740 x 10(-6) ppm.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiao-Peng Hu, Wei Deng, Hong-Lin Lu, Jin Tong, Shu-Yan Yu
Summary: Two novel bis-(beta-diketonate) ligands were designed and synthesized for self-assembly with transition and lanthanide metals to form luminescent supramolecular coordination compounds. Spectroscopic techniques were used to characterize two neutral dinuclear supramolecular assemblies and investigate their photophysical properties. X-ray crystallography revealed the molecular arrangement of one of the complexes.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Franz A. Mautner, Florian Bierbaumer, Roland C. Fischer, Ana Torvisco, Ramon Vicente, Merce Font-Bardia, Annia Tubau, Saskia Speed, Salah S. Massoud
Summary: These complexes exhibit different coordination numbers, with Tb-9 and Eu-10 complexes showing characteristic bands predicted from Tb(III) and Eu(III) ions in the solid-state luminescence spectra. The Overall Quantum Yield measured at the excitation wavelength of 371 nm yielded 1.04% for 9 and up to 34.56% for 10.
Article
Chemistry, Applied
Idris Juma Al-Busaidi, Rashid Ilmi, Danyang Zhang, Jose D. L. Dutra, Willyan F. Oliveira, Nawal K. Al Rasbi, Liang Zhou, Wai-Yeung Wong, Paul R. Raithby, Muhammad S. Khan
Summary: Three new europium(III) complexes have been synthesized and characterized, with the phenyl-ethynyl-bipyridine ligand showing impressive performance in red organic light emitting diodes. The contribution of each ligand to the sensitized Eu(III) photoluminescence has been analyzed. An energy transfer mechanism for the sensitized Eu(III) emission has been proposed and discussed using experimental and theoretical data.
Article
Chemistry, Inorganic & Nuclear
Xiao Meng, Bo Song, Jinhua Zou, Zhiyuan Dong, Jingli Yuan
Summary: In this study, an organic dye-conjugated beta-diketonate-Eu3+ complex was developed as a luminescent probe for detecting and discriminating biothiols. The complex emits long-lived red emission upon reaction with biothiols and also generates different luminescent derivatives. This probe allows for quantitative detection and discrimination of GSH and Cys/Hcy.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Hwan-Woo Park, Daewon Han, Jong-Pil Ahn, Se-hoon Kim, Yoon-Joong Kang, Young Gil Jeong, Do Kyung Kim
Summary: The core-shell structure of poly(St-co-MAA) nanoparticles containing beta-diketonate Eu3+ complexes was successfully synthesized. The nanoparticles exhibited highly monodispersed distribution and near-neutral surface charges. They can serve as a substitute for red luminescent organic dyes for intracellular trafficking and cellular imaging.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Optics
Zafar Abbas, Ashis K. Patra
Summary: In this study, a sensitive and selective optical detection strategy for anthrax spore biomarker based on DPA-sensitized lanthanide luminescence was developed. The DPA-sensitized lanthanide luminescence allowed for simple, rapid, sensitive, and selective detection of anthrax spores.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Applied
Andrey A. Knyazev, Maksim E. Karyakin, Aleksandr S. Krupin, Yuriy G. Galyametdinov
Summary: Luminescent adducts of Eu(III) tris(beta-diketonate) with 1,10-phenanthroline were synthesized and their properties were characterized. Sensitization of Eu(III) ion by various beta-diketones was evaluated. The synthesized compounds were found to form optically isotropic vitrified films with high light transmittance and efficient luminescence, showing potential as luminescent temperature sensors.
Article
Materials Science, Ceramics
Yanan Li, Shujie Gai, Hui Zhu, Jian Yin, Wenyuan Guo, Maxim S. Molokeev, Xiangyang Lu, Mao Xia, Zhi Zhou
Summary: In this study, the strategy of replacing Ge4+ with smaller Si4+ was adopted to selectively occupy the site of Bi3+ activator in the small ring and achieve near-infrared light-emitting in Zn-2(Ge,Si)O-4. The designed phosphor exhibited a broad near-infrared emission range from blue to NIR by controlling the crystal field engineering. This work provides new insights for the development of Bi3+-activated near-infrared emitting phosphors and sheds light on the potential near-infrared luminous mechanism of Bi3+.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Toushique Ahmed, Amit Chakraborty, Animesh Paul, Sujoy Baitalik
Summary: We designed and characterized four ternary lanthanide tris-(beta-diketonate) complexes. The photophysical behaviors of the complexes were investigated using absorption and emission spectroscopy, and the crystal structures were confirmed by single crystal X-ray diffraction. The results showed that the introduction of the terpyridyl-based ancillary ligand resulted in distinctive luminescence responses from the four lanthanide metal ions.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
You-Yu Wang, Li Song, Shi-Yue Tang, Ze-Qi Dai, Jia-Yu Guo, Hang-Yan Shen, Wen Xiang Chai
Summary: A new fluorescent amine probe has been designed and synthesized, which shows strong red emission and can be used for the development of a highly sensitive sensor for aniline and methylamine.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Mengmeng Guo, Na Luo, Yueling Bai, Zhenggang Xue, Qingmin Hu, Jiaqiang Xu
Summary: A porous heterostructure WO3-C/In2O3 was designed and prepared for a miniature H2 sensor, which showed higher response value, lower operating temperature, fast response-recovery speed, and low limit of detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Feng Hu, Hui Hu, Yuting Li, Xiaohui Wang, Xiaowen Shi
Summary: Arsenic contamination in water bodies is a significant health risk. This study developed a chitosan-catechol modified electrode for rapid and accurate detection of trace amounts of arsenic. The modified electrode demonstrated good detection capability and resistance to ionic interference, making it suitable for in situ detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Yantao Zhang, Qian Liu, Tao Tian, Chunhua Xu, Pengli Yang, Lianju Ma, Yi Hou, Hui Zhou, Yongjun Gan
Summary: In this study, a lysosome-targeting buffering fluorogenic probe (Lyso-BFP) was designed and synthesized, demonstrating excellent photostability, pH specificity, and responsiveness to lysosomal acidification in living cells. The performance of Lyso-BFP in pH sensing was attributed to the inhibition of the photo-induced electron transfer process. Lyso-BFP allowed for wash-free imaging and long-term real-time monitoring of lysosome pH changes based on its off-on fluorescence behavior and buffer strategy.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Wei Cai, Wenbo Sun, Jiayue Wang, Xiaokui Huo, Xudong Cao, Xiangge Tian, Xiaochi Ma, Lei Feng
Summary: In this study, a near-infrared fluorescent probe HCBG was developed for imaging of alpha-GLC. HCBG exhibited excellent selectivity and sensitivity towards alpha-GLC in complex bio-samples, and showed good cell permeability for in situ real-time imaging. Through the high-throughput screening system established by HCBG, a natural alpha-GLC inhibitor was successfully isolated and identified. This study provides a novel fluorescence visualization tool for discovering and exploring the biological functions of diabetes-related gut microbiota, and a high-throughput screening approach for alpha-GLC inhibitor.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Trey W. Pittman, Xi Zhang, Chamindie Punyadeera, Charles S. Henry
Summary: Heart failure is a growing epidemic and a significant clinical and public health problem. Researchers have developed a portable and affordable diagnostic device for heart failure that can be used at the point-of-care, providing a valid alternative to current diagnostics approaches.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Anders O. Tjell, Barbara Jud, Roland Schaller-Ammann, Torsten Mayr
Summary: An optical hydrogen peroxide sensor based on catalytic degradation and the detection of produced oxygen is presented. The sensor offers higher resolution and better sensitivity at lower H2O2 concentrations. By removing O2 from the sample solution, a more sensitive O2 sensor can be used for measurement. The sensor has been successfully applied in a flow-through cell to measure H2O2 concentration in different flow rates.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Seong Jae Kim, Ji-hun Jeong, Gaabhin Ryu, Yoon Sick Eom, Sanha Kim
Summary: Surface-enhanced Raman spectroscopy (SERS) is a high-sensitivity, label-free detection method with various analytical applications. Researchers have developed a hydrophobic SERS substrate based on engineered carbon nanotube arrays (CNT-SERS) and studied the role of structural design at both micro and nanoscales. The substrate demonstrated controlled self-enrichment capability and enhanced sensitivity, with a significant increase in the SERS signal. The study also proposed a theoretical model and a concentration strategy inspired by plants for analyte deposition on microarrays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Dan Zhao, Renjun Jiang, Xiaoqiang Liu, Subbiah Alwarappan
Summary: In this study, a novel ternary composite material was constructed by assembling cerium vanadate nanorods on reduced graphene oxide-microcrystalline cellulose nanosheets, and it was used for real-time monitoring of the concentration of superoxide anions in vivo. The ternary composite showed excellent conductivity, large surface area, and abundant active sites, leading to a wider linear range, high sensitivity, low detection limit, and fast response time for superoxide anion detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Tengfei Wang, Liwen Wang, Guang Wu, Dating Tian
Summary: In this study, a covalent organic framework material TaTp-COF with porous and uniform spheres was successfully prepared via hydrothermal reaction, and it was found to significantly enhance the aggregation-induced emission (AIE) of berberine. The unique emission properties of berberine on TaTp-COF were studied and utilized for the sensitive detection of berberine.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Lin Li, Yilei Ding, Lei Xu, Shuoran Chen, Guoliang Dai, Pengju Han, Lixin Lu, Changqing Ye, Yanlin Song
Summary: In this study, a novel TTI based on a ratiometric fluorescent nanosensor is designed, which has the advantages of high accuracy and low cost. Experimental and theoretical investigations confirm its pH responsiveness and demonstrate its good sensitivity and reliability. By monitoring the total volatile basic nitrogen, this TTI can accurately predict food spoilage and can be adaptively modified for different types of food. The TTI based on this nanosensor enables visual monitoring of food quality.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Fangju Chen, Xueting Wang, Wei Chen, Chenwen Shao, Yong Qian
Summary: Lung cancer is the second most common malignant tumor worldwide. Drug resistance in lung cancer leads to treatment failure and recurrence in majority of patients. This study developed a fluorescent prodrug that can be activated in cancer cells to release drugs, and its signal can be tracked by imaging. It shows a unique autophagy-driven ferroptosis effect, indicating its potential for targeting drug-resistant cancer cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Weichao Li, Qiming Yuan, Zhangcheng Xia, Xiaoxue Ma, Lifang He, Ling Jin, Xiangfeng Chu, Kui Zhang
Summary: This study developed a high-performance gas sensor for formaldehyde detection by modifying ZnSnO3 with ZnO QDs and SnO2 QDs. The modified sensor showed improved sensing response and lower working temperature. The presence of ZnO QDs formed rich heterojunctions, increased surface area, and provided oxygen deficiency for formaldehyde sensing reaction, thus enhancing the sensor performance. This research provides an alternative method to enhance the sensing properties of MOS by QDs modification.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Joung-Il Moon, Eun Jung Choi, Younju Joung, Jin-Woo Oh, Sang-Woo Joo, Jaebum Choo
Summary: A novel nanoplasmonic substrate was developed for biomedical applications, which showed strong hot spots for detecting biomarkers at low concentrations. The substrate, called AuNPs@M13, was made by immobilizing 60 nm gold nanoparticles onto the surface of an M13 bacteriophage scaffold. It demonstrated higher sensitivity and lower limit of detection compared to commercially available assays.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Ning Li, Ya Zhang, Ying Xu, Xiaofang Liu, Jian Chen, Mei Yang, Changjun Hou, Danqun Huo
Summary: The molecular subtype of breast cancer guides treatment and drug selection. Invasive tests can promote cancer cell metastasis, so the development of high-performance, low-cost diagnostic tools for cancer prognosis is crucial. Liquid biopsy techniques enable noninvasive, real-time, dynamic, multicomponent, quantitative, and long-term observations at the cellular, genetic, and molecular levels. A Cu-Zr metal-organic framework (MOF) nanoenzyme with monatomic Cu attachment has been synthesized and proven to have high catalytic performance. The sensor constructed using this nanoenzyme shows potential for accurate classification of breast cancer serum samples.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Chemistry, Analytical
Jeongmin Kim, Hyemin Kim, Seunghyun Park, Hyeonaug Hong, Yong Jae Kim, Jiyong Lee, Jaeho Kim, Seung-Woo Cho, Wonhyoung Ryu
Summary: This study presents a method to fabricate independently functioning microneedle (MN) electrodes with narrow intervals for high precision electrochemical sensing. The optimized mixture of photocurable polymer and single-wall carbon nanotubes was used to mold single composite MNs, which were then attached to pre-patterned electrodes. Plasma etching and electropolymerization were performed to enhance the electrochemical activity, and Prussian blue and glucose oxidase were electrodeposited on the MNs for glucose detection. The MN electrodes showed good sensitivity and linearity, and the feasibility of glucose detection was demonstrated in an in vivo mouse study.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)