Article
Chemistry, Applied
Yan Zhuang, Houchao Shan, Zepeng Zhang, Shufeng Li, Qian Zhu, Zhihao Si, Shuai Yang, Zhen Yang, Di Cai, Peiyong Qin
Summary: A novel triazine-based covalent organic polymer named TTRZ was designed and synthesized for highly selective detection of aromatic nitro-compounds, exhibiting strong fluorescence intensity. The mechanism of quenching effect of TTRZ by TNP was explained, and TTRZ was shown to be an excellent candidate for the detection of TNP.
Article
Chemistry, Multidisciplinary
Juan-Juan Shao, Jian-Ling Ni, Yu Liang, Guang-Jun Li, Li-Zhuang Chen, Fang-Ming Wang
Summary: Two new titanium metal organic framework materials have been synthesized by solvothermal method. These materials exhibit high porosity and strong blue fluorescence, making them suitable as multi-responsive fluorescence sensors for Fe(III) and Cr(VI), and capable of detecting trace amounts of Ag+ in water with good water and thermal stability.
Article
Chemistry, Multidisciplinary
Ekta P. Asiwal, Divyesh S. Shelar, Chaturvedi S. Gujja, Sudesh T. Manjare, Suresh D. Pawar
Summary: A novel nickel-based luminescent MOF was synthesized for the selective detection of Fe2+ and Fe3+. The Ni-MOF showed high sensitivity to Fe3+ with a quick fluorescence reaction time, allowing for rapid distinction between Fe2+ and Fe3+.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Applied
Xin Fang, Yong Liu, Wang-Kang Han, Xiaodong Yan, Ya-Xiang Shi, Liang-Hui Chen, Yuqin Jiang, Jiangwei Zhang, Zhi-Guo Gu
Summary: TFBD-Py-COF is a novel LCOF with high selectivity in detection, capable of fluorescence chemo-sensing of nitro-pesticides with a detection limit of 4.0 x 10(-2) ppm. Additionally, TFBD-Py-COF exhibits reversible acidochromic behaviors and selective quenching by Fe3+.
Article
Chemistry, Multidisciplinary
Haitao Hong, Ni Wu, Mingxi Han, Zhiyong Guo, Hongbing Zhan, Shaowu Du, Banglin Chen
Summary: CTFs are a type of porous organic material that have become increasingly popular in research fields such as gas separation, heterogeneous catalysis, etc., due to their heteroatom effect and unique chemical stability. The DPA-CTF material studied in this research showed promising potential as a chemical sensor for nitroaromatic compounds and Fe3+ ions, exhibiting high sensitivity and detection performance.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Dong-Yue Wang, Wen-Jing Wang, Ren Wang, Sun-Chang Xi, Bin Dong
Summary: A covalent triazine framework (FL-CTF) composed of electron-donating thiophene units and electron-accepting benzothiadiazole units was synthesized successfully. The material exhibited high selectivity and sensitivity towards Fe3+ metal ions, making it a promising fluorescent sensor for practical applications. Detection limit of 0.78 mu M was achieved, demonstrating the potential for sensitive and selective detection of Fe3+ ions.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Argha Chakraborty, Sayantan Sarkar, Probal Nag, Rishi Ranjan, Sivaranjana Reddy Vennapusa, Suman Mukhopadhyay
Summary: An ether-linked covalent triazine polymer, SMCOP-2, was synthesized and found to be a highly versatile material for addressing various environmental issues. SMCOP-2 exhibited good fluorescence emission in water, but its fluorescence declined in the presence of carcinogenic dichromate ions, making it a turn-off fluorescence sensor with a low limit of detection for detecting dichromate ions. SMCOP-2 also changed color from yellow to reddish brown in the presence of acid vapor, enabling it to be used as an effective colorimetric sensor for detecting acid vapors.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Review
Chemistry, Multidisciplinary
Jiawei Wang, Yibiao Jin, Mingdang Li, Shujuan Liu, Kenneth Kam-Wing Lo, Qiang Zhao
Summary: Enzyme activity detection is crucial for early diagnosis of diseases and drug screening. Time-resolved luminescence assays, with their high accuracy and signal-to-noise ratios, have been widely used. Responsive probes based on metal complexes and metal-free organic compounds have been developed for time-resolved bioimaging and biosensing due to their long luminescence lifetimes, high quantum yields, and photostability.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiaoyong Zhai, Yao Kou, Lijuan Liang, Pengyu Liang, Pingru Su, Yu Tang
Summary: In this study, highly stable and dual-emission lanthanide metal-organic frameworks (Ln-MOFs) were designed and synthesized using photoresponsive organic ligands. Among them, Eu-L showed a sensitive response to tetracycline and could be used as a promising fluorescence sensor for tetracycline detection. Luminescence test papers and composite films derived from Eu-L enabled on-site and real-time determination of tetracycline compounds in aqueous solutions.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Zhi-Gang Wang, Tao Ding, Jie Fei
Summary: A new Zn2+ metal organic framework with high structural stability and adsorption properties has been synthesized, which can be used for gas separation and ion detection.
DALTON TRANSACTIONS
(2023)
Article
Engineering, Environmental
Bing -Bing Lu, Zhi-Xin Xing, Yong-Shun Bao, Fei Ye, Ying Fu
Summary: In this study, a new resorcin[4]arene-based metal-organic framework was synthesized and utilized for luminescent detection of herbicides. The metal-organic framework exhibited excellent stability and showed significant enhancement or decrease in luminescence intensity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Sheng Wen-Wen, Sun Chen, Hu Jin-Song
Summary: A zinc-based fluorescent organic framework with excellent stability was successfully synthesized using a polyfunctional groups ligand. The complex showed high sensitivity for detecting 2,4,6-trinitrophenol and Fe3+ ion with good selectivity even in the presence of other interfering metal cations. Furthermore, it exhibited good recyclability and the extinction mechanisms of luminescence were explored.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Sheeba Khan, Sanjay K. Mandal
Summary: Novel metal-organic coordination networks functionalized with amino acids were synthesized for the selective sensing of perrhenate ion (ReO4-) in water with high luminescent properties. These neutral sensors demonstrated excellent selectivity, stability, and recyclability, providing a new approach for environmental monitoring.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Shiying Liu, Wei Liu, Yiliang Sun, Weisheng Liu
Summary: The in situ doping method was used to construct Ln-MOFs with excellent luminescent properties. A novel Bi-MOF was constructed and doped with different lanthanide metal ions to achieve high luminescence quantum yields. The doped MOFs showed potential for temperature sensing and color change applications.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ever Velasco, Guoyu Zhang, Simon J. Teat, Kui Tan, Saif Ullah, Timo Thonhauser, Jing Li
Summary: Luminescent metal-organic frameworks are alternative sensors that offer selective and sensitive detection of chemical species such as benzaldehyde. The interactions between benzaldehyde and the metal-organic framework result in luminescence quenching, which is attributed to an electron-transfer process. This study provides insights into the detection mechanism and properties of benzaldehyde using a zinc-based LMOF.
INORGANIC CHEMISTRY
(2023)
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)