Article
Chemistry, Analytical
Pramod Kumar Mehta, Hyojin Park, Eun-Taex Oh, Heon Joo Park, Keun-Hyeung Lee
Summary: In this study, a reversible fluorescent sensor was synthesized for the turn-on monitoring of Hg2+ in water, and a fluorescent sensing method was developed for the selective detection of CH3Hg+ over Hg2+. The sensor showed rapid response (<30 s), high sensitivity and/or selectivity, low detection limits (107 nM), and significant enhancement of fluorescence for CH3Hg+.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Applied
Huanhuan Li, Qiyi Bei, Wenhao Zhang, Murugavelu Marimuthu, Md. Mehedi Hassan, Suleiman A. Haruna, Quansheng Chen
Summary: An ultrasensitive fluorescence sensor was developed using three-dimensional upconversion nanoclusters and aptamer-modulated thymine-Hg2+-thymine strategy. The sensor showed good selectivity and anti-interference, making it suitable for identifying Hg2+ in spiked samples.
Article
Nanoscience & Nanotechnology
Wei Xiao, Wenjuan Xu, Wanjin Huang, Yu Zhou, Zhenhuan Jin, Xiaoping Wei, Jianping Li
Summary: BiOBrxI1-x/Ti3C2 Schottky heterojunction nano-composites were prepared and used as a sensitive material in a photoelectrochemical sensor for mercury ion detection. The method showed high sensitivity and good detection performance.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Wei Yao, Yingchen Hua, Zhihong Yan, Chunxian Wu, Feiyan Zhou, Yi Liu
Summary: In this study, sulfhydryl functionalized carbon quantum dots (HS-CQDs) were synthesized and used for rapid and sensitive detection of mercury ions (Hg2+) through fluorescence quenching. The HS-CQDs sensor showed a linear response in the concentration range of 0.45 μM to 2.1 μM with a detection limit of 12 nM, and it exhibited satisfactory results when detecting Hg2+ in real samples. This suggests the potential for practical application of the sensor in environmental analysis.
Article
Chemistry, Multidisciplinary
Linyang Li, Junlian Chen, Chuanbao Xiao, Yihao Luo, Nianbing Zhong, Quanhua Xie, Haixing Chang, Dengjie Zhong, Yunlan Xu, Mingfu Zhao, Qiang Liao
Summary: The rapid development of modern agricultural practices in the past 50 years has resulted in a significant increase in the emission of non-biodegradable and highly biotoxic ions into the hydrosphere. Excessive intake of these ions, including essential trace elements such as Cu2+ and F-, can have severe consequences on human health. To address this issue, photo-electrochemical (PEC) online sensors have been developed, which offer advantages such as low energy consumption, miniaturization, simplicity, and fast response. However, there is a lack of publicly available systematic review on recent advances in PEC ion sensors since January 2017. This review focuses on the strategies to enhance the sensitivity, selectivity, and limit of detection for PEC ion sensors, discussing the materials, substrates, electronic transfer, and performance of various PEC sensors, and highlighting the challenges and potential future research avenues for the development of high-performance PEC sensors.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Analytical
Yingzi Qian, Yu Li, Yu Qin, Dechen Jiang, Hong-Yuan Chen
Summary: Potassium-selective polymer dots (K-Pdots) were used for the first time in photoelectrochemical (PEC) analysis, demonstrating sensitive and specific detection of potassium ions. The successful PEC analysis highlighted the efficacy of this strategy and suggested its potential universal application in metal ion detection, which could advance the development of PEC sensors in ion analysis.
Article
Chemistry, Inorganic & Nuclear
Chengxiang Chu, Chengyue Zou, Yue Qiu, Danqun Huo, Yuanyi Deng, Xianfeng Wang, Guoren Xu, Changjun Hou
Summary: The rapid and sensitive detection of heavy metal ions is crucial for food safety and the environment. Carbon quantum dots-based probes, M-CQDs, and P-CQDs, were developed for the detection of Hg2+ using fluorescence resonance energy transfer and photoinduced electron transfer mechanisms. The M-CQDs exhibited fluorescence quenching, while the P-CQDs showed fluorescence enhancement upon the addition of Hg2+. Paper-based chips modified with M/P-CQDs were successfully used for visual Hg2+ sensing, enabling real-time detection in tap water and river water samples.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Parvathy O. Chandrasekaran, Ajayakumar Aswathy, Kiran James, Kannankutty Kala, Mohanan T. Ragi, Narayanapillai Manoj
Summary: In this study, a molecular chameleon with D-pi-A architecture, PRAA, was synthesized and utilized as a fluorescent sensor for toxic metal ions. Its selectivity towards Ag+, Hg2+, and Pb2+ ions can be adjusted by solvent polarity. The mechanism of binding and stoichiometry of interaction were established through experimental and theoretical methods. PRAA's potential as a probe for detecting Ag+ and Hg2+ ions in aqueous solutions using an anionic surfactant medium was convincingly demonstrated.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Article
Chemistry, Analytical
Xuan Wang, Chenfei Xu, Yuxian Wang, Wei Li, Zhengbo Chen
Summary: The research team developed an electrochemical sensor based on T-Hg2+-T coordination, which can accurately and sensitively detect Hg2+. The sensor has a wide linear range and low detection limit, and successfully detected Hg2+ in river water samples, demonstrating its potential for environmental monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Songlin Yang, Kaisu Li, Na Sun, Jingwei Liu, Qiongli Luo, Ying Zhang, Lei Wang, Shuangyan Wu, Mingchang Zhu
Summary: In this study, a water-stable lanthanide metalorganic framework ratiometric fluorescence sensor was developed for the efficient and sensitive detection of ciprofloxacin. The sensor exhibited good selectivity, sensitivity, and recoverability, making it a promising strategy for the development of simple and effective ratio sensors.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Die Wang, Luminita Marin, Xinjian Cheng
Summary: In this study, fluorescent small molecule BODIPY and chitosan-based polymer sensors were synthesized, which can effectively detect and quench Hg2+, Hg+, Fe3+, and Fe2+. These sensors also have the ability to remove heavy metal ions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Physical
Valter Kiisk, Michal Novotny, Margus Kodu, Siim Pikker, Tea Avarmaa, Jan Remsa, Jan Lancok, Martin Vrnata, Raivo Jaaniso
Summary: Many research activities focus on functional luminescent materials based on metal oxides and trivalent rare earth ions. Specific applications require optimizing material preparation, annealing, and excitation-detection techniques. In this study, pulsed laser deposition was used to obtain thin TiO2 films containing 1 at% of samarium or neodymium impurity ions. The effects of pulsed laser annealing on their structure and luminescent properties were investigated.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Mengjie Li, Yang Chen, You Zhou, Jiapeng Wang, Ying Wu
Summary: A sensitive photoelectrochemical biosensor was developed for the detection of potential heavy metal pollutant mercury ion. The biosensor, based on Nb.BtsI-assisted Hg2+ cycle strategy and MB-dsDNA intercalation complex, exhibited low background noise, high sensitivity, and excellent accuracy.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Analytical
Miao Zhong, Shengyuan Yang, Lei Chen, Chen Liu, Jiao Shi, Hao Liang, Xilin Xiao, Le Li, Jinquan Liu
Summary: A novel fluorescent sensing method for highly sensitive detection of Hg2+ was developed using a triple-helix molecular switch (THMS) and exonuclease III (Exo III)-assisted signal amplification. The method showed a linear detection range of 0.01-50 nM and could detect Hg2+ at concentrations as low as 1.04 pM. It demonstrated potential applications in environmental and food monitoring.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Catia Correia, Jose Martinho, Ermelinda Macoas
Summary: Carbon dots doped with Eu3+ ions were synthesized and their interaction and luminescence properties were characterized by vibrational spectroscopy and UV-vis excitation spectroscopy. The Eu3+ ions are strongly coordinated with the carboxylate groups at the surface of the Cdots and incorporated within the nanographene network in the carbon core. The luminescence of the Cdots is strongly quenched by Hg2+ and Ag+, and a ratiometric sensor can be built using their luminescence intensities ratio.
Article
Chemistry, Analytical
Siqi Zhang, Wei Shi, Kai-Bin Li, De-Man Han, Jing-Juan Xu
Summary: In this study, an ultrasensitive and label-free method for detecting DNA adenine methyltransferase (Dam) and CpG methyltransferase (M.SssI) was developed using the nanopore technique coupled with DNA cascade signal amplification reactions. The method showed high sensitivity and excellent specificity for the detection of methyltransferases.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yizhong Shen, Chunlei Zhu, Yunlong Wei, Huanhuan Chen, Zeyu Wu, Yingwang Ye, De-Man Han
Summary: A portable ratiometric fluorescence sensor integrated with a smartphone was developed for the visual point-of-care testing of hypochlorite (ClO-). The sensor showed a low detection limit and a wide linear range, and enabled the rapid onsite detection of ClO- in real samples.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Yizhong Shen, Yunlong Wei, Chunlei Zhu, Jinxuan Cao, De-Man Han
Summary: Developing efficient and portable biosensors for accurate onsite detection of food contaminants is crucial for ensuring food safety and human health. Integration of smartphone and ratiometric fluorescent strategies offers a potential solution for rapid, low-cost, reliable, and easily implementable visual detection of food contaminants, even in resource-limited areas.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Physical
Liya Fan, Jaka Sunarso, Xiao Zhang, Xianqiang Xiong, Li He, Lixia Luo, Fangling Wang, Ziwei Fan, Chenglin Wu, Deman Han, Ngie Hing Wong, Yong Wang, Guihua Chen, Wei Chen
Summary: This study addresses the performance challenge of coupling CuWO4 with an electrocatalyst. By coupling it with NiWO4, the composite exhibits high electrocatalytic activity and excellent photostability. The composite also shows a negative shift in onset potential and a higher photocurrent density compared to the pure CuWO4 photoanode.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Rongrong Li, Cunbin Du, Chenglin Wu, Xianlang Chen, Zijian Wang, Xu Wang, Haoran Guo, Xia Ying, Deman Han, Xinzhi Chen
Summary: For insoluble drug compounds, co-solvent is a useful dissolution technology. This study investigated the dissolution of homovanillic acid (HVA) in pure and mixed solvents at different temperatures. The solubility was found to vary in different solvents, and the analysis of solute-solvent interactions provided an explanation for this. Different correlation models were evaluated for their applicability to the studied solvents.
JOURNAL OF CHEMICAL AND ENGINEERING DATA
(2022)
Article
Biochemical Research Methods
Wei Shi, Xiaobin Zhang, Xinya Kong, Jiaxue Fu, Siqi Zhang, Kaibin Li, Deman Han
Summary: This paper introduces a selection strategy for the efficiency evaluation of hydrophobic charge-induction ligands, using various indicators to assess the efficiency of adsorbents. The experimental results indicate significant differences in efficiency between different types and densities of ligands under static and dynamic adsorption conditions.
JOURNAL OF CHROMATOGRAPHY A
(2022)
Article
Astronomy & Astrophysics
Yu-Peng Chen, Shu Zhang, Long Ji, Shuang-Nan Zhang, Peng-Ju Wang, Ling-Da Kong, Zhi Chang, Jing-Qiang Peng, Qing-Cang Shui, Jian Li, Lian Tao, Ming-Yu Ge, Jin-Lu Qu
Summary: MAXI J1816-195 is a newly discovered accreting millisecond pulsar with peculiar characteristics, including a mild deviation from the conventional blackbody model and a detected hard X-ray shortage. Compared with other millisecond pulsars and atoll bursters, MAXI J1816-195 stands out as a rather unique system.
ASTROPHYSICAL JOURNAL LETTERS
(2022)
Article
Chemistry, Physical
Zhenjun Song, Deman Han, Meiding Yang, Jian Huang, Xiji Shao, Hongdao Li
Summary: Formic acid plays a significant role in the pharmaceutical and chemical industries, but current synthesis methods have drawbacks such as toxic waste and complex separation processes. This study proposes a direct hydration reaction on a magnesia-silver composite for formic acid production, and the feasibility is verified through calculations.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Rongrong Li, Yuxue Yue, Xianlang Chen, Renqin Chang, Jiaxin Zhang, Bo Zhao, Jieyu Zhang, Di Cai, Yihan Zhu, Deman Han, Jia Zhao, Xiaonian Li
Summary: Here, we report a strategy that uses graphdiyne as a carrier to prepare single-cluster catalysts for the semi-hydrogenation of acetylene in the presence of ethylene. Experimental results and computational screening show that the Pd-3 trimer anchored on graphdiyne is a durable and selective catalyst, providing a new method for designing precise and efficient hydrogenation catalysts at the atomic scale.
Article
Chemistry, Analytical
Siqi Zhang, Huahao Shao, Kai-Bin Li, Wei Shi, Yichao Wang, De-Man Han, Jinggang Mo
Summary: A novel fluorescence assay based on hyperbranched rolling circle amplification (HRCA) and DNA walkers was proposed to detect ultrasensitive CpG methyltransferase (M.SssI) and DNA adenine methyltransferase (Dam) activity. The biosensor showed high sensitivity due to the dual-amplification strategy of HRCA and DNA walkers. M.SssI and Dam methyltransferase could be detected with limits of detection (LOD) of 0.0004 U/mL and 0.001 U/mL, respectively. The sensing system was also applied to analyze endogenic Dam methyltransferase in real samples such as E. coli cell lysate.
ANALYTICA CHIMICA ACTA
(2023)
Article
Engineering, Chemical
Wei Shi, Shun-Nan Zhu, Hong Xu, Kai-Bin Li, Si-Qi Zhang, Tian-Yi Zhang, Chao-Ying Fang, Xiao-Bin Zhang, De-Man Han
Summary: This study explored the potential of dual-ligand hydrophobic charge induction chromatography for simultaneous recovery of bovine serum albumin and bovine immunoglobulin G. Results showed that dual-ligand mode had stable coupling efficiency ratio and broke through the adsorption capacity limit of single-ligand mode. It exhibited good adsorption performance for both components, confirming its effectiveness as a strategy for biological separation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Analytical
Mao Shen, Wei Li, Fengzao Chen, Lei Chen, Yuxiang Chen, Suqing Chen, Shibin Ren, Deman Han
Summary: A ratiometric electrochemical sensor for the detection of bisphenol A (BPA) was developed using Ag@Fe3O4-rGO composite modified glassy carbon electrode. The sensor demonstrated a linear detection range of 0.1-10.0 μM (R2 = 0.997) and a detection limit of 0.028 μM (S/N = 3), with good selectivity, reproducibility, and stability. Additionally, the sensor was successfully applied to the detection of BPA in real water samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Jia-Wei Wang, Wei Chen, De-Man Han, Jian-Rong Chen
Summary: Highly efficient CuInS2/WO3 hybrid heterostructures were fabricated using a solvothermal reaction to remove tetracycline hydrochloride (TCH) from water sources via an efficient photo-Fenton reaction. The study systematically characterized the phase structures and morphology of the as-fabricated CuInS2/WO3 hybrid heterostructures. The experiments demonstrated that an S-scheme mechanism was critical for the highly efficient photo-Fenton degradation of TCH.
Article
Chemistry, Physical
Zijian Wang, Jiaxin Zhang, Lele Yan, Bo Zhao, Lin Zheng, Haoran Guo, Yuxue Yue, Deman Han, Xianlang Chen, Rongrong Li
Summary: In this study, ruthenium nanoparticles (Ru NPs) containing vacancies inserted into porous carbon (Ru@C-2) were synthesized in situ and used as a highly efficient catalyst for the hydrogenation of 4-chloronitrobenzene (4-CNB). The appropriate Ru vacancies were found to affect the charge distribution of the Ru@C-2 catalyst, promote electron transfer, increase active sites, and improve the activity and stability of the catalyst. This study provides enlightenment for the development of new 4-CNB hydrogenation catalysts.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Yun-Jie Yu, Wei Li, Shi-Bin Ren, Xian-Jing Zhou, De-Man Han
Summary: Integrating covalent organic framework (COF)-metal organic framework (MOF) hybrid materials is an effective way to develop a ratiometric fluorescence method. In this study, lanthanide organic frameworks were grown on the surface of a COF, resulting in a COF-MOF with high thermal and chemical stability. The COF-MOF exhibited dual emissions and fluorescence resonance energy transfer (FRET) process from the COF to MOF, making it suitable for ratiometric fluorescence detection of phosphate.
NEW JOURNAL OF CHEMISTRY
(2023)
