Article
Chemistry, Analytical
Linmin Chen, Meihuang Zeng, Jingwen Jin, Qiuhong Yao, Tingxiu Ye, Longjie You, Xi Chen, Xiaomei Chen, Zhiyong Guo
Summary: In this study, a double wing with one body strategy was developed to establish a reduced food antiseptic sensing method using shell-isolated colloidal plasmonic nanomaterials. The cascade reactor generated center dot OH with high oxidative capacity toward acid preservatives, and the introduction of the signal molecule DA improved the sensitivity of the analysis. Additionally, the stable shell-isolated structure enabled a reproducible and quantitative SERS analysis method.
Article
Environmental Sciences
Bin Liu, Qixuan Jiang, Zenghui Qiu, Luo Liu, Ren Wei, Xin Zhang, Haijun Xu
Summary: The degradation mechanisms of nylon 6 (PA6) and polystyrene (PS) microplastics (MPs) were studied using different oxidative agents. The findings confirmed the oxidation and polymer chain scission of the MPs, and emphasized the importance of using multiple analytic methods in tandem to evaluate the degradation of environmental MPs.
Article
Chemistry, Applied
Xin Tian, Yun Qin, Yuning Jiang, Xiaoyu Guo, Ying Wen, Haifeng Yang
Summary: Residue of hydrogen peroxide in food is harmful to human health. Researchers have developed a surface-enhanced Raman scattering (SERS) sensor for detecting hydrogen peroxide using a composite of reduced polyaniline modified gold nanoparticles. The sensor allows quantitative analysis and regeneration of the hydrogen peroxide, making it useful for monitoring residues in food and environmental samples.
Article
Chemistry, Multidisciplinary
Yun Bai, Tunmise Ayode Otitoju, Yun Wang, Qiong Chen, Ting Sun
Summary: A novel PDDA-MXene@AuNP composite was synthesized using the electrostatic self-assembly method. The composite exhibits ultra-sensitive SERS performance for crystal violet and thiram, and can be used as a sensitive SERS-active substrate for monitoring Fenton-like reactions of crystal violet.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Danni Guo, Lixia Zhao, Hui Zhang
Summary: The fabrication of a multifunctional nanoplatform for in situ monitoring of Fenton reaction is important for understanding the reaction process and designing high-performance catalysts. In this study, a hybrid catalyst composed of single-crystalline gold nanoparticles on reduced graphene oxide was prepared, which exhibited both excellent Fenton-like catalytic activity and sensitive surface-enhanced Raman spectroscopy detection performance. This nanoplatform has potential applications in environmental catalysis.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Analytical
Fengtong Zhao, Weipeng Wang, Haodong Zhong, Fei Yang, Wangyang Fu, Yunhan Ling, Zhengjun Zhang
Summary: Quantitative analysis methods using relative Raman scattering intensities can overcome the challenges of SERS substrate inhomogeneity and fluctuating measuring parameters, providing effective and reliable information. By establishing external calibration curves and selecting appropriate label molecules, accurate prediction of molecular composition in multi-component systems and target molecule concentrations can be achieved.
Article
Geochemistry & Geophysics
Fuwei Sun, Tianhu Chen, Xuehua Zou, Haibo Liu, Ziyang Chu, Daobing Shu, Hanlin Wang, Fangju Huang, Dong Chen
Summary: The study found that under different solution chemistry conditions, siderite can activate H2O2 to produce hydroxyl radicals for the degradation of typical micropollutants. The dosage of siderite and H2O2 concentration can affect the generation of hydroxyl radicals, while the presence of different anions and metal ions also has an impact on the reaction.
APPLIED GEOCHEMISTRY
(2021)
Article
Chemistry, Physical
Van-The Vo, Viet-Duc Phung, Sang-Wha Lee
Summary: The study successfully utilized a porous silicon/nanosilver composite as a SERS-active substrate for the ultralow concentration detection of dopamine and serotonin neurotransmitters, demonstrating excellent linear range and detection limit.
SURFACES AND INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Elena V. Solovyeva, Olga V. Odintsova, Vasilisa O. Svinko, Daria V. Makeeva, Denis V. Danilov
Summary: Two routes for the preparation of HA@AgNPs nanocomposites were investigated using commercially available HA and Creighton colloidal silver. The nanocomposites were evaluated using various techniques and it was found that the position of the phosphate band in Raman spectra can be used as a marker of successful HA loading with AgNPs. The HA@AgNPs nanocomposites exhibited localized surface plasmon resonance and can be used for optical control of bone healing and identification of analytes involved in bone metabolism.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Shengfu Zhi, Jinling Shi, Aihui Liang, Zhiliang Jiang
Summary: Two-dimensional MXeneTi(3)C(2) nanosheets were successfully prepared by in-situ generation of HF etching Ti3AlC2 under microwave irradiation. The nanosheets sol of MXene@Au, which is doped with gold nanoclusters and has excellent stability and strong catalysis, was synthesized without CO as a product residue reducer. MXene@Au nanosol can catalyze mandelic acid-HAuCl4 to produce gold nanoparticles, which can be traced via resonance Rayleigh scattering (RRS) and surface-enhanced Raman scattering (SERS). A high sensitivity, selectivity, and facile SERS/RRS dual-mode biosensing assay platform has been constructed for isocarbophos (ICP) by coupling the dual-mode nanocatalytic indicator reaction with the aptamer reaction.
Article
Chemistry, Inorganic & Nuclear
Dan Li, Zepeng Zhao, Junliang Guo, Rujun Shen, Feigao Xu
Summary: Magnetic nano Fe3O4/CeO2/TiO2 composites were synthesized and their Fenton catalytic activity for the degradation of AO-7 dye under UV light was studied. The best activity was observed in the composite with a weight ratio of 1:1:1 (Fe1Ce1Ti1). The Fe1Ce1Ti1 composite showed good reusability and the .OH free radicals were mainly formed on its surface.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yufeng Zhu, Shouchun Ma, Yang Yang, Jiaqi Li, Yuqing Mei, Li Liu, Tongjie Yao, Jie Wu
Summary: The study established a Z-scheme electron transfer pathway by preparing Fe2(MoO4)3/MoO3 heterojunction, and achieved a synergistic effect between heterogeneous Fenton reaction and photocatalytic reaction by utilizing H2O2 as a medium, leading to enhanced degradation efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Yajie Wang, Jinke Wang, Lingwei Ma, Chenhao Ren, Dawei Zhang, Li Ma, Mingxian Sun
Summary: This study proposed a novel strategy for on-site detection and quantitation of corrosion inhibitors using SERS detection and PLSR algorithm. SERS intensities were linearly correlated with inhibitor concentrations, showing good predictive ability and quantification performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Chongning Li, Xue He, Hui Li, Yang Xiao, Xiaona Xu, Caina Jiang, Guiqing Wen, Zhiliang Jiang
Summary: A new covalent organic framework loaded gold nanocluster (AuCOF) with strong catalytic activity was prepared, which can catalyze the reduction of HAuCl4 to form gold nanoparticles (AuNP) with surface enhanced Raman scattering (SERS) and resonance Rayleigh scattering (RRS) effects. The aptamer of estradiol (E2) can adsorb on the AuCOF surface to suppress its catalytic performance, and desorb from the surface to recover the catalysis upon selective binding to E2.
MICROCHEMICAL JOURNAL
(2023)
Review
Spectroscopy
Jiyeon Kim, Kyunjong Sim, Seungsang Cha, Jeong-Wook Oh, Jwa-Min Nam
Summary: SERS technology, using metallic nanoparticles and plasmonic nanostructures, has been extensively studied and applied in various fields, with challenges in reproducibility and quantification. Single-particle SERS analysis helps understand the mechanism behind SERS signals, particularly in studying single-particle SERS and molecular SERS.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
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)