Article
Spectroscopy
Jie Zhao, Jiawei Zhang, Baojun Hu, Chunyu Gao, Zan Li, Zhiwei Sun, Jinmao You
Summary: A new ratiometric fluorescent probe (APS-NA) was designed and synthesized for the detection of mercury ions in the environment and multiple biological samples. The probe shows a large Stokes shift, high selectivity, high sensitivity and naked eye visualization.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Mimi Fan, Zhihui Pan, Chunjuan Wang, Yang Guo, Jingran Sun, Mingzhu Liu, Bo Peng, Jin Wu, Yanjun Fang
Summary: A novel ratiometric fluorescence probe based on nitrogen-doped blue carbon dots (NCDs) and red gold nanoclusters (Au NCs) was developed for the detection of mercuric ion (Hg2+). A user-friendly fluorescent test paper sensor combined with a smartphone was fabricated for rapid visual and quantitative detection. The probe's ability to selectively bind with Hg2+ on the surface of Au NCs allows for the quenching of red fluorescence while the blue fluorescence of the NCDs remains unchanged, enabling accurate and efficient detection of Hg2+.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Applied
Sumita Subedi, Lok Nath Neupane, Pramod Kumar Mehta, Keun-Hyeung Lee
Summary: A new ratiometric fluorescent chemodosimeter for Hg2+ was developed based on an irreversible reaction of phenylboronic acid with Hg2+, showing selective and sensitive signal behavior to low concentrations of Hg2+ ions. The real-world application demonstrated quantification of Hg2+ ions in groundwater and tap water samples spiked with known amounts of Hg2+ ions, showcasing its potential environmental and biological sensing applications.
Article
Chemistry, Analytical
Shumin Feng, Junrong Zheng, Jinzheng Zhang, Zhisheng Gui, Guoqiang Feng
Summary: Recently, the detection of ferrous ion (Fe2+) in live organisms has gained significant attention due to its vital role in life and its association with ferroptosis and several diseases. In this study, a novel NIR ratiometric fluorescent probe NRF-Fe2+ based on a fluorescence resonance energy transfer (FRET) system using the N-oxide chemistry is reported. The probe exhibits high selectivity and sensitivity for Fe2+ with significant ratiometric fluorescence changes, making it suitable for imaging both exogenous and endogenous Fe2+ in cells with low cytotoxicity. The probe is also successfully applied for imaging Fe2+ in mice and monitoring the level changes of Fe2+ in ferroptosis and drug-induced liver injury.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Chenchen Yang, Yueyue Li, Na Wu, Yinchan Zhang, Wei Feng, Mingming Yu, Zhanxian Li
Summary: In this study, core-shell rare earth upconversion nanoparticles were synthesized and utilized for the fabrication of mercury ion colorimetric nanoprobes with rapid response and low detection limits. These nanoprobes could also be applied for Hg2+ imaging and localization in living cells and lysosomes.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Spectroscopy
Xiao-Lei Xue, Hao Zhang, Gui-Hua Chen, Guan-Hua Yu, Hao-Ran Hu, Shu-Yan Niu, Kun- Peng Wang, Zhi-Qiang Hu
Summary: There is a pressing need for the development of highly sensitive and selective fluorescence probes for ONOO- in mitochondria. In this study, we introduced a ratiometric fluorescent probe COUS, which utilized a coumarin-cyanine hybrid as the fluorophore and C = C bonds as reaction sites of ONOO-. The probe COUS displayed sensitivity and selectivity towards ONOO-, with a large fluorescence emission shift (239 nm) and a low detection limit (41.88 nM). Furthermore, COUS demonstrated mitochondrial targeting ability, and the targeting moiety could dissociate from the probe upon reaction with ONOO-, enabling accurate detection of ONOO- in mitochondria.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Engineering, Environmental
Yue Wang, Li Zhang, Xiaoyue Han, Liangwei Zhang, Xiaoyan Wang, Lingxin Chen
Summary: This article reviews recent advances in fluorescent probes for Hg2+ analysis, focusing on different response modes and design strategies, highlighting their applications in environmental detection and in vivo analysis. Challenges and prospects for fluorescent probes are proposed to guide new design strategies and applications expansion in the future.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Spectroscopy
Linlin Lv, Weiwei Luo, Quanping Diao
Summary: In this study, a novel phenoxazine-based fluorescent probe BPO-N-3 was developed for detecting H2S with high selectivity and sensitivity. The detection mechanism relies on the ratio of green to red fluorescence signals, and the probe demonstrated successful detection of endogenous and exogenous H2S in living cells. This probe serves as a powerful tool for in-depth exploration of H2S function in various physiological processes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Applied
Qin Wang, Dan Li, Nian Rao, Yan Zhang, Yi Le, Li Liu, Lei Huang, Longjia Yan
Summary: The fluorescent probe IDS based on the indole ring was successfully designed and synthesized for selective detection of fluoride ions, with a low detection limit of 1.3 ppb. It was used for fluorescence imaging of F- in HepG2 cells and for detecting fluoride ion concentrations in environmental water samples and urine samples. These applications indicate that IDS is a sensitive probe with potential for research and the diagnosis of endemic fluorosis.
Article
Chemistry, Analytical
Chunwei Yu, Mei Yang, Shuhua Cui, Yuxiang Ji, Jun Zhang
Summary: A novel ratiometric Cu2+-selective probe was constructed based on pyrene derivative, which showed selective recognition and detection of Cu2+ through a turn-on fluorescent response. The formation of a 1:1 metal-ligand complex and the binding mode were confirmed by MS spectra, Job's plot experiment, and H-1 NMR experiment. Satisfactory results were obtained from fluorescence imaging in living cells for Cu2+ detection.
Article
Chemistry, Analytical
Yuan-Jun Tong, Lu-Dan Yu, Nan Li, Qi Fu, Ke Xu, Jiajun Wei, Yu-Xin Ye, Jianqiao Xu, Fang Zhu, Janusz Pawliszyn, Gangfeng Ouyang
Summary: A new strategy for designing a multipurpose ratiometric probe is presented in this study, which can detect the presence of mercury and fluoride ions simultaneously, establishing a successful on-site water monitoring method.
ANALYTICA CHIMICA ACTA
(2021)
Article
Spectroscopy
Xilang Jin, Xuehao Ma, Wei Zhong, Yixin Cao, Huaqi Zhao, Xin Leng, Jingjing Yang, Hongwei Zhou, Mengyao She
Summary: A ratiometric fluorescent probe was developed for monitoring Cu2+ in various samples, and electrospinning technique was used to fabricate a probe-composited fluorescent sensing film for visual and recyclable monitoring of Cu2+, showing great potential for on-site and naked-eye detection of Cu2+ in practical applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Keqin Yang, Li Hou, Zhifang Li, Tianran Lin, Jianniao Tian, Shulin Zhao
Summary: A ratiometric fluorescent nanoprobe for detecting peroxynitrite was successfully constructed, showing selective accumulation in mitochondria and linear detection in the range of 0-6.0 µM. This nanoprobe enables ratiometric fluorescence imaging of endogenous peroxynitrite in cell mitochondria.
Article
Chemistry, Analytical
Hao Guo, Xiaoqiong Wang, Ning Wu, Mengni Xu, Mingyue Wang, Longwen Zhang, Wu Yang
Summary: A novel dual-emission ratiometric fluorescent sensor (CDs@Eu-MOFs) was successfully synthesized for the detection of Hg2+ in environmental water samples, with wide linear range and low detection limit. The sensor showed excellent luminescence performance and good stability in aqueous solution.
ANALYTICA CHIMICA ACTA
(2021)
Article
Biochemistry & Molecular Biology
Linlin Yang, Nan Yang, Pengli Gu, Yihua Zhang, Xianyu Gong, Shichao Zhang, Junwan Li, Liguo Ji, Guangjie He
Summary: A novel ratiometric fluorescent probe (NG-TCF) based on ICT mechanism was developed for monitoring SO2 derivatives. The probe showed fast response rate, good sensitivity, and specific response, making it suitable for imaging SO2 derivatives in living cells.
BIOORGANIC CHEMISTRY
(2022)
Article
Chemistry, Analytical
Junjun Hou, Yan Huang, Lili Fu, Mingzhao Sun, Lingxiao Wang, Runjing Guo, Lingxin Chen, Changjun Lv
Summary: Hydrogen sulfide (H2S), a signaling molecule, plays a beneficial role in lung diseases. However, the changes in endogenous lung H2S levels in chronic pulmonary diseases are unclear. In this study, a fluorescent probe was synthesized for selective imaging of H2S in living cells and mice, and the role of H2S supplementation in the treatment of pulmonary fibrotic diseases was discussed.
ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Qiaoning Wang, Hongdan Wang, Min Lv, Xiaoyan Wang, Lingxin Chen
Summary: Sulfamethoxazole (SMX), a commonly found antibiotic in the environment, is efficiently degraded by a mixed bacteria community including Aeromonas caviae strain GLB-10. In addition to the bioproducts generated by single bacteria, the mixed bacteria produce acetanilide and hydroquinone during SMX degradation. The degradation mechanism of the mixed bacteria is more complex and involves acetylation, sulfur reduction 4S pathway, and ipso-hydrolysis. The molecular mechanism reveals the overexpression of outer membrane proteins and catalase peroxidase, as well as the involvement of 6-hydroxynicotinate 3-monooxygenase.
Article
Chemistry, Applied
Hao Fu, Zhenyu Bai, Ping Li, Xiaoyang Feng, Xueping Hu, Xingliang Song, Lingxin Chen
Summary: This study presents an ingenious sandwich-structured magnetic molecular imprinted electrochemical sensor for the detection and separation of ovalbumin (OVA). By utilizing boronate affinity and signal amplification strategy, the sensor had good selectivity and sensitivity towards OVA with a low detection limit of 3.0 fg/mL. The sensor also demonstrated excellent stability and successfully detected OVA in real red wine samples.
Article
Chemistry, Analytical
Qian Yu, Hoa Duc Trinh, Yeonji Lee, Taejoon Kang, Lingxin Chen, Sangwoon Yoon, Jaebum Choo
Summary: In this study, a silica-encapsulated Au core-satellite (CS@SiO2) nanotag was developed, which exhibited strong and reproducible surface-enhanced Raman scattering (SERS) signal. By combining SERS with enzyme-linked immunosorbent assay (ELISA), a highly sensitive detection of SARS-CoV-2 was achieved. The CS@SiO2 nanotags showed superior performance with a detection limit of 8.81 PFU mL-1, which is 10 times better than conventional ELISA and 100 times better than lateral flow assay strip method. The new CS@SiO2-SERS-ELISA method can significantly reduce the false-negative diagnostic rate for SARS-CoV-2 and contribute to overcoming the current pandemic crisis.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Haojie Cong, Hao Ding, Guoqing Wang, Xiaokun Wang, Lingxin Chen
Summary: In this study, an on-site hypoxanthine (Hx) sensing method was designed using manganese dioxide (MnO2) nanosheets to detect both hydrogen peroxide (H2O2) and uric acid (UA). The proposed method exhibited high sensitivity towards Hx and was successfully used to monitor actual sample spoilage under different storage conditions. A WeChat mini program was developed for on-site evaluation.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Jiaqi Miao, Wan Ji, Jialuo Yu, Jianxia Cheng, Yan Huang, Maryam Arabi, Na Zhou, Bowei Li, Zhiyang Zhang, Lingxin Chen, Xiaoyan Wang
Summary: A triple-emission ratiometric fluorescence sensor was developed for the detection of tetracycline (TC) antibiotics using a carbon dots hybridized glycoprotein ovalbumin stabilized Au nanoclusters nanocomposite (CDs-AuNCs). The sensor showed a wide linear response for TC with a low detection limit, and the fluorescence colors changed visibly under a UV lamp. The sensor was also selective for TC and could be used for TC determination in complicated matrices.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Jianxia Cheng, Zhiyang Zhang, Longfei Zhang, Jiaqi Miao, Yan Chen, Rongfang Zhao, Meichun Liu, Lingxin Chen, Xiaoyan Wang
Summary: A freeze-thaw-ultra-sonication method is proposed to obtain stable colloidal Ag nano-aggregates, which can maintain metal surface charges and adsorption affinity, ensuring excellent SERS stability and sensitivity. By combining with microfluidic devices, a sequential SERS on-line continuous detection method is established for high-throughput detection of multiplex samples. The method has been successfully applied in the sensitive and accurate detection of 5-nitro-8-hydroxyquinoline (5-NQ) with antibacterial and anticancer activities.
Article
Engineering, Environmental
Yinan Li, Jianxin Fu, Lin Peng, Xun Sun, Guoqing Wang, Yunqing Wang, Lingxin Chen
Summary: The extensive occurrence of small plastic particles in the environment and our foods, and the resulting hazardous effects to nature and people have become a global concern. A new strategy using an olive oil-based emulsion has been developed to efficiently remove microplastics and nanoplastics. This emulsion can adsorb onto plastic particles and successfully remove them from seawater, tea leaves, soil, and toothpaste.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Jing Ding, Min Lv, Qiaoning Wang, Dong Zhu, Qing-Lin Chen, Xiao-Qiang Li, Chang-Ping Yu, Xiangrong Xu, Lingxin Chen, Yong-Guan Zhu
Summary: The impact of tire tread particles (TPs) on soil fauna remains poorly understood. However, this study found that TPs affect the gut microbiota, intestinal histopathology, and metabolites of soil worms through both particulate- and leachate-induced effects, with leachates exerting stronger effects. Furthermore, the study demonstrated that brand-specific toxicity and leachate compositions play a dominant role in TP toxicity.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Chemistry, Analytical
Yuhao Wen, Dani Sun, Yue Zhang, Zhong Zhang, Lingxin Chen, Jinhua Li
Summary: Environmental protection and food safety are important for human society, and there is a need for analytical methods to detect pollutants in food. Molecular imprinting-based ratiometric fluorescence (MI-RFL) sensors, with advantages such as selectivity, sensitivity, and convenience, have gained interest in analytical determination. This review summarizes recent advances in MI-RFL sensors for environmental and food analysis, including fluorescence sources, sensing principles, new imprinting techniques, and analytical applications. Challenges and perspectives for improving sensitivity/visualization and extending applications are also discussed.
Article
Materials Science, Biomaterials
Xiaoyue Han, Yanlong Xing, Xinyu Song, Kun Dou, Fabiao Yu, Lingxin Chen
Summary: This study developed a fluorescent probe called CyO-Disu for specific sensing of glutathione (GSH) variation in live cells and mice models, providing direct evidence of GSH concentration changes during the progression of hepatocellular carcinoma (HCC). The probe could potentially serve as a powerful tool for early diagnosis and precise treatment of HCC using GSH as a reliable biomarker.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Materials Science, Biomaterials
Jianxin Fu, Lan Zhang, Keyu Xiang, Yu Zhang, Guoqing Wang, Lingxin Chen
Summary: Poor management and disposal of plastic materials and the accumulation of microplastics in the environment and foods have raised public concern. The study found that a concurrent exposure to antibiotics and microplastics resulted in accumulation in detoxification organs, such as the liver and kidney. The presence of microplastics contaminated with antibiotics caused enhanced hepatic damage, oxidative stress, and inflammatory responses, which may lead to liver diseases.
BIOMATERIALS SCIENCE
(2023)
Article
Chemistry, Analytical
Ying Chen, Rong-chao Mei, Yun-qing Wang, Lui Lui, Ling-xin Chen
Summary: By preparing core-satellite Au nanoparticles and coating them on the surface of a glass capillary, SERS nanotips were formed and further functionalized. These nanotips were able to detect the pH value and O2 content in the intracellular environment. This study solves the bottleneck issues faced by traditional granular SERS probes for cell analysis, providing a new analytical tool for detection and analysis of single cell environment.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Biomaterials
Shang Shi, Yunqing Wang, Rongchao Mei, Xizhen Zhao, Xifang Liu, Lingxin Chen
Summary: A novel microneedle formulation, called MNs, was developed for sensitive analysis of drug release and diffusion behavior in dermal interstitial fluid (ISF) using surface-enhanced Raman scattering (SERS). The study found that drug diffusion in ISF had no directional preference and was driven by concentration gradient. This research provides a new tool for in situ and real-time detection of molecules in ISF, which is significant for the development and evaluation of MN-based therapeutic systems.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Engineering, Environmental
Jing Ding, Zhaoqin Liang, Min Lv, Xiuyu Li, Shuang Lu, Suyu Ren, Xiaoyong Yang, Xiaoqiang Li, Chen Tu, Dong Zhu, Lingxin Chen
Summary: This study investigates the effects of soil aging on the toxicity of microplastics to soil fauna. The results show that soil aging slightly alters the surface properties and morphology of microplastics, and significantly affects the release of additives. Additionally, a less diverse microbial community is formed on the surface of microplastics compared to the surrounding soils. Aged microplastics have a significant impact on the reproduction of soil worms, particularly those aged in soil with manure, and disrupt their gut microbiota. Changes in biofilm features and leaching properties of microplastics during aging are the main contributing factors to these shifts. This study provides preliminary insights into the role of soil aging in the toxicity of microplastics to soil fauna.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
