Article
Chemistry, Analytical
Meizhen Zhang, Jingru Liao, Xianming Kong, Qian Yu, Miao Zhang, Alan X. Wang
Summary: The integration of surface-enhanced Raman scattering (SERS) spectroscopy with magnetic fluid provides a simple and cost-effective method for rapid and sensitive detection of target analytes. The magnetic-plasmonic SERS substrates synthesized in this study by decorating silver nanoparticles onto magnetic Fe3O4 nanoparticles have excellent selectivity and high sensitivity down to the picomolar level, making them a promising approach for the detection of various harmful ingredients in food or the environment.
Article
Chemistry, Multidisciplinary
Zongyu Wu, Binge Deng, Yutong Zhou, Haoqiang Xie, Yumin Zhang, Li Lin, Jian Ye
Summary: In this study, a non-invasive endoscopic technique called surface-enhanced transmission Raman spectroscopy (SETRS) was developed for the precise localization and perioperative surgery navigation of deep lesions. By using ultrabright surface-enhanced Raman spectroscopy (SERS) nanoparticles and a home-built photosafe transmission Raman spectroscopy setup, the authors achieved accurate localization of deep lymph nodes and successfully guided in vivo lymph node biopsy surgery in live rats. This study represents a significant advancement in the translation of TRS techniques for clinical applications and provides insights for the design and implementation of in vivo SERS applications.
Article
Multidisciplinary Sciences
Zhilun Zhao, Chen Chen, Shixuan Wei, Hanqing Xiong, Fanghao Hu, Yupeng Miao, Tianwei Jin, Wei Min
Summary: Raman-active nanoparticles (Rdots) with ultra-brightness and compact sizes are developed for high-resolution imaging of complex biological networks and immunostaining of specific protein targets.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Zhiyang Pei, Jing Li, Chang Ji, Jibing Tan, Zhida Shao, Xiaofei Zhao, Zhen Li, Baoyuan Man, Jing Yu, Chao Zhang
Summary: We have proposed and prepared a cascaded wire-in-cavity-in-bowl (WICIB) structure on flexible polydimethysiloxane to overcome the sensitivity to excitation angles in surface-enhanced Raman scattering (SERS) sensors and enable monitoring of contaminants in complex environments. The WICIB structure serves as a highly sensitive, homogeneous, and stable SERS substrate for conventional detection. Through finite element simulations, it was proven that plasmonic coupling and distribution of the enhanced electromagnetic field occur around the wire and inside the cavity, making it beneficial for polydirectional and in situ detection. By exploiting the triple synergistic enhancement effect and unique optical properties, we successfully achieved the in situ detection of residual pollutant molecules in microdroplets of apple juice and lake water, indicating the great potential of this flexible SERS sensor for on-site environmental monitoring.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Qingqing Li, Hongqi Huo, Ying Wu, Lanlan Chen, Lichao Su, Xuan Zhang, Jibin Song, Huanghao Yang
Summary: Surface-enhanced Raman scattering (SERS) is a feasible and ultra-sensitive method for biomedical imaging and disease diagnosis. The recent developments in SERS active materials and their in vivo imaging and biosensing applications are overviewed, including various SERS substrates and their successful utilization in in vivo imaging, as well as the role of highly sensitive SERS biosensors in disease detection and prevention. Additionally, the review highlights the use of SERS in the identification and resection of microtumors, as well as its potential as a diagnostic and therapeutic platform.
Article
Chemistry, Physical
Rihan Wu, Qihao Jin, Catherine Storey, Jack Collins, Guillaume Gomard, Uli Lemmer, Leigh Canham, Rainer Kling, Andrey Kaplan
Summary: This study explores the SERS detection performance of a composite material consisting of plasmonic nanoparticles embedded in a scaffold of nano-porous silicon. By detecting Methylene Blue using SERS, the advantage of the composite material for detecting concentrations as low as a few picomolars is demonstrated.
NANOSCALE HORIZONS
(2021)
Review
Nanoscience & Nanotechnology
Yajuan Liu, Mei Li, Haisha Liu, Chao Kang, Xiyong Yu
Summary: Nanoparticle-based drug delivery systems have the potential to enhance the properties of drugs by enabling targeted delivery. Monitoring the intracellular behavior of nanoparticles is crucial but challenging. The recent advancements in Raman techniques provide a versatile tool for noninvasive cellular measurements.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2023)
Article
Spectroscopy
Xinyue Song, Xiaohui Ren, Dongyan Tang, Xin Li
Summary: A simple and effective method for obtaining highly sensitive SERS probes by mixing iodide with silver sol is reported in this study. The specific effect of iodide on SERS sensitivity is systematically investigated, and it is found that iodide can effectively promote SERS enhancement for both anionic and cationic analytes, with iodide ion showing a higher activating effect than chloride ion. The prepared SERS-active substrate demonstrates excellent enhancement for rhodamine 6G, with a high Raman enhancement factor and a low detection limit.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Di Liu, Huimin Gao, Wenji Jiang, Su Yan, Hao Liu, Junjie Chen, Sisi Wen, Wei Zhang, Xu Wang, Bing Zhao, Wei Song
Summary: In this study, three-dimensional Ag aerogel-supported Hg single-atom catalysts were used as an efficient SERS substrate for monitoring enhanced oxidase-like reactions. The effect of Hg2+ concentrations on the SERS properties of 3D Hg/Ag aerogel networks was investigated, and an optimized addition of Hg2+ resulted in specific enhancement. The formation of Ag-supported Hg SACs was confirmed using HAADF-STEM imaging and XPS measurement, and the oxidase-like catalytic mechanism of Hg/Ag SACs was revealed using DFT. This research provides a mild synthetic strategy for fabricating Ag aerogel-supported Hg single atoms with promising prospects in various catalytic fields.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Xue Chen, Xiaohui Li, Jinmei Xie, Hao Yang, Aichun Liu
Summary: This study reports a non-invasive method for discriminating multiple myeloma (MM) using label-free serum surface-enhanced Raman scattering (SERS) spectroscopy in combination with multivariate analysis. The results show that the relative concentrations of biomolecules in the serum of MM patients differ from those of healthy controls. By building a discrimination model using SVM, an accuracy of 78.4% was achieved for MM discrimination.
ANALYTICA CHIMICA ACTA
(2022)
Review
Chemistry, Analytical
Jingxing Guo, Ying Liu, Huangxian Ju, Guangming Lu
Summary: This review summarizes and evaluates recent works on surface-enhanced Raman scattering (SERS)-based on-site analysis in the past five years. It provides an overview of the analytical workflow and various application scenes, and discusses future challenges and development trends. The review serves as a guide for researchers and engineers in exploring novel testing strategies for field analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Zengyao Wang, Bin Ai, Yuduo Guan, Yu Wang, Gang Zhang
Summary: The study demonstrates a method of growing Ag nanoislands on large-scale plasmonic nanostructures by simple LED irradiation, with the size and density of the nanoislands being adjustable. This surface modification technique shows promise for high-performance SERS substrates and applications like glucose detection.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Biophysics
Yu Xu, Feng Gu, Shan Hu, Yunjian Wu, Changyu Wu, Yaling Deng, Bing Gu, Zheng Chen, Ying Yang
Summary: Due to the difficulties in detecting invasive fungi through extended culture periods and inconveniences in vitro culture, a non-destructive method called surface-enhanced Raman scattering (SERS) has been developed to quickly identify invasive fungi from clinical specimens. In this study, an MNP@PNIPAMAA hybrid organic-inorganic nano-catcher was created using ultrasonic-initiated polymerization. By using this technique, fungus can be rapidly extracted from complex samples in just 3 seconds, and SERS can be used to instantly identify the isolated fungi with an efficacy rate of about 75%. The entire process takes only 10 minutes. This method is a significant breakthrough for the rapid detection of invasive fungi.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Jung Ho Yu, Idan Steinberg, Ryan M. Davis, Andrey Malkovskiy, Aimen Zlitni, Rochelle Karina Radzyminski, Kyung Oh Jung, Daniel Tan Chung, Luis Dan Curet, Aloma L. D'Souza, Edwin Chang, Jarrett Rosenberg, Jos Campbell, Hadas Frostig, Seung-min Park, Guillem Pratx, Craig Levin, Sanjiv S. Gambhir
Summary: We demonstrate noninvasive and five-plex SERS imaging of nanoparticle accumulation in tumors of living mice using multispectral palettes of gold multicore-near-infrared (NIR) resonant Raman dyes-silica shell SERS (NIR-SERRS) nanoparticle oligomers. The method allows for ratiometric imaging of tumors by varying the administered ratio of nanoparticles, simulating the detection of multiple biomarkers with different expression levels in the tumor environment. This approach surpasses the multiplicity limit of previous preclinical tumor imaging methods while maintaining sufficient sensitivity for in vivo imaging, enabling noninvasive assessment of multiple biological targets within the tumor microenvironment in living subjects.
Article
Chemistry, Multidisciplinary
Josiah Shondo, Salih Veziroglu, Tim Tjardts, Tamim Bin Sarwar, Yogendra Kumar Mishra, Franz Faupel, Oral Cenk Aktas
Summary: A 4N-in-1 hybrid substrate concept for ultra-sensitive and reliable photo-induced-enhanced Raman spectroscopy is proposed, which shows a significant enhancement and high detection sensitivity. The substrate also exhibits superior photocatalytic degradation performance and reusability.
Review
Instruments & Instrumentation
Qingsheng Bai, Yongguang Yin, Yanwanjing Liu, Haowen Jiang, Mengxin Wu, Weidong Wang, Zhiqiang Tan, Jingfu Liu, Myeong Hee Moon, Baoshan Xing
Summary: Due to the increased applications of engineered elemental metal nanoparticles (EMNPs) in recent years, their release into the environment has gained attention. The on-line coupling of flow field-flow fractionation with inductively coupled plasma mass spectrometry (F4-ICPMS) has been well established for the characterization of EMNPs in complex matrices of environmental samples. This review focuses on the specific advantages of the F4 method and recent advances in the application of F4-ICPMS techniques in examining the occurrence and transformation of EMNPs in the environment.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Article
Environmental Sciences
Li Li, Su-Juan Yu, Rong-Gang Zheng, Peng Li, Qing-Cun Li, Jing-Fu Liu
Summary: The synthesized nanocomposite Ag-D201 showed high efficiency in removing iodide from water, and its adsorption capacity was influenced by pH and water matrix. The synergistic mechanism for iodide adsorption by Ag-D201 was proposed, including the Donnan membrane effect caused by D201 resin, chemisorption of iodide by AgNPs, and catalytic effect of AgNPs.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Ruohua Qu, Mi Chen, Jingfu Liu, Qiting Xie, Na Liu, Fei Ge
Summary: Studies have shown that silver nanoparticles (AgNPs) have a negative impact on ATP generation of aquatic organisms, leading to decreased ATP content and metabolic disturbances. AgNPs compete with adenosine diphosphate and inorganic phosphate for binding sites on chloroplast ATPase, reducing substrate binding efficiency. Additionally, AgNPs significantly inhibit multiple ATP-related metabolic pathways. These findings are of great significance for understanding the mechanism of energy supply and metabolic regulation in aquatic organisms under nanoparticle stress.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Environmental Sciences
Sujuan Yu, Hao Liu, Rui Yang, Wenjing Zhou, Jingfu Liu
Summary: This study systematically investigated the aggregation and stability of selenium nanoparticles (SeNPs) under various water conditions using alginate-coated SeNPs (Alg-SeNPs) and polyvinyl alcohol-coated SeNPs (PVA-SeNPs) as models. The results showed that Alg-SeNPs underwent apparent aggregation in the presence of calcium and lanthanum ions, while PVA-SeNPs remained highly stable. Natural organic matter enhanced the stability of Alg-SeNPs in monovalent electrolytes but accelerated their attachment in polyvalent electrolytes. The long-term stability experiments demonstrated that both Alg-SeNPs and PVA-SeNPs increased in aggregation size over time, indicating their potential suspension or settling in water.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Engineering, Environmental
Zhimin Fan, Huachao Zhao, Kaifeng Wang, Wei Ran, Jie-Fang Sun, Jingfu Liu, Rui Liu
Summary: Electrochemical reduction (ER) is a promising method for pollutant removal, but its application is limited by slow reaction kinetics and side reactions. In this study, the role of interfacial hydrophilicity in determining ER performance was investigated. It was found that a hydrophobic Pd/C electrocatalyst hindered the diffusion of water and pollutants, leading to decreased mass transfer and decontamination efficiency. However, this dilemma could be overcome by increasing hydrophilicity with hydrophilic polymers, resulting in a significant improvement in the activity and efficiency of the electrocatalyst.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zongshan Zhao, Yanhen Wu, Wei Ran, Huachao Zhao, Xiaotian Yu, Jie-fang Sun, Guangzhi He, Jingfu Liu, Rui Liu, Guibin Jiang
Summary: In this study, AuFe3@Pd/gamma-Fe2O3 nanosheets were developed as an in situ regenerable and highly active hydrogenation catalyst. The Pd monolayer sites could be fully regenerated under ambient conditions, initiated by center dot OH radicals from gamma-Fe2O3 nanosheets. The nanosheets exhibited high activity in hydrogenating the carbon-halogen bond and withstand ten rounds of regeneration.
Article
Engineering, Environmental
Qingsheng Bai, Qingcun Li, Jingfu Liu
Summary: We developed an effective method for determining the particle number, size, and species of dominant AgCNPs in soils. AgCNPs were extracted efficiently from soils using ultrasonication wand-assisted tetrasodium pyrophosphate extraction. Multistep selective dissolution of Ag NPs, AgCl NPs, and whole Ag NPs/AgCl NPs/Ag2S NPs was achieved by different reagents. The concentrations and sizes of AgCNPs in the extracts were determined, and Ag2S NPs were found to be the main form of AgCNPs in the soils.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Hai -Yuan Chi, Xiao-Xia Zhou, Min-Rong Wu, Wan-yu Shan, Jing-fu Liu, Jin-quan Wan, Bing Yan, Rui Liu
Summary: This study investigates the effect of constructing a magnetic mesoporous SiO2 shell on the surface of nanoscale zero-valent iron (nZVI). The results show that this structure can regulate the electron transfer pattern, avoid the formation of iron oxide layers, and improve the efficiency of active hydrogen production.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Xiaoyu Zhao, Wei Ran, Zixuan Wang, Jiefang Sun, Rui Liu, Jingfu Liu
Summary: This article investigated the structural transformation of Pd shells on Au nanocubes in different electrolytes at various electrochemical windows. It was found that Pd sites are stable under basic and neutral conditions but experience severe structure evolution under acidic conditions. Pd atoms react with H+ under acidic conditions to form Pd ions, which are easily coreduced with Au ions into surface alloys.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Xiaotian Hua, Wenxuan Wang, Wei Ran, Guangzhi He, Jingfu Liu, Rui Liu
Summary: Metal nitrides, especially TiN, can effectively modulate the electronic states of Pd sites and enhance their catalytic performance in hydrodechlorination reactions, making them promising supports for highly efficient Pd catalysts.
Article
Engineering, Environmental
Peng Li, Yujian Lai, Rong-gang Zheng, Qing-cun Li, Xueying Sheng, Sujuan Yu, Zhineng Hao, Ya-qi Cai, Jingfu Liu
Summary: A novel method combining TMAH digestion and DCM dissolution has been developed to extract small microplastics and nanoplastics embedded in soils, sediments, and sludges. The feasibility of this method has been verified and it shows promise for evaluating small solid-embedded microplastic and nanoplastic pollution.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Xue-ying Sheng, Yu-jian Lai, Su-juan Yu, Qing-cun Li, Qing-xiang Zhou, Jing-fu Liu
Summary: Plastic has been shown to release nanoparticles (NPs) into the atmosphere when exposed to sunlight, which poses a continuous health risk to the respiratory system. This study presents a simple and reliable method for quantifying atmospheric polystyrene (PS) NPs using pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). The method demonstrated excellent reproducibility and high sensitivity, with a detection limit as low as 15 pg/m(3) for PS NPs. The method can be used for routine monitoring of atmospheric PS NPs and assessing their risk to human health.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Environmental
Zelin Wu, Zhaokun Xiong, Wen Liu, Rui Liu, Xuezhen Feng, Bingkun Huang, Xinhao Wang, Yixuan Gao, Hong Chen, Gang Yao, Bo Lai
Summary: Accurate control of catalytic activity and mechanism, as well as understanding the correlation between structure, activity, and selectivity in Fenton-like chemistry, is crucial for designing efficient catalysts for sustainable water decontamination. In this study, size-dependent catalysts with single cobalt atoms, atomic clusters, and nanoparticles were prepared to investigate the change in catalytic activity and mechanism in peroxymonosulfate-based Fenton-like chemistry. The results showed that the catalytic activity and durability varied with the size of the metal active centers, and the contributions of radical and nonradical mechanisms were modulated by reducing the metal size. Density functional theory calculations revealed the evolution of catalytic mechanisms in size-dependent systems at different Gibbs free energies for reactive oxygen species generation. The findings of this study provide an in-depth understanding of the effects of metal size in Fenton-like chemistry and can guide the design of intelligent catalysts for specific water purification applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Zhenpeng Huang, Jihang Yu, Wenbo Li, Xuan Tang, Yanglong Guo, Yun Guo, Li Wang, Sheng Dai, Rui Liu, Wangcheng Zhan
Summary: This study focuses on the surface structure of PtFe nanoparticles on PtFe/CeO2-x catalysts and its impact on the activity and water resistance for propane oxidation. The PtFe/CeO2-O catalyst exhibited superior performance due to the cooperation among metallic Pt sites, active oxygen species, and FeOx nanoclusters. The findings of this study provide valuable insights for the development of efficient bimetallic catalysts to eliminate volatile organic compound pollutants.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Review
Chemistry, Analytical
Claudia Campanale, Silvia Galafassi, Francesca Di Pippo, Iulian Pojar, Carmine Massarelli, Vito Felice Uricchio
Summary: Biodegradable plastic mulches (BDMs) have the potential to be an eco-friendly alternative to conventional plastic mulches in agriculture. However, their long-term impacts on soil ecosystems are still uncertain, and further research is needed. Incorporating BDMs into the soil may stimulate microbial activity, but there is also a risk of incomplete degradation and release of residual microplastics and additives.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Xuechi Yin, Sijie Liu, Deepak Kukkar, Jianlong Wang, Daohong Zhang, Ki-Hyun Kim
Summary: The lateral flow immunoassay strip is a classic and dominant tool in point-of-care detection, known for its portability and simplicity. However, current colored nanomaterials used as signal labels in LFIA have limited sensing potential, leading to the recognition of composite nanoparticles as alternatives to enhance sensitivity, signal readout diversity, anti-matrix interference, and cost-effectiveness.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Yaxin Cao, Longyi Shao, Timothy P. Jones, Wenjing Deng, M. Santosh, Pengju Liu, Cheng-Xue Yang, Yaowei Li, Daizhou Zhang, Kelly Berube
Summary: The toxicity of fibrous particles in ambient air can be higher than other types of particles. Microfibers can be organic or inorganic and their presence in the atmosphere as a result of human activity raises concerns for environmental and public health. Accurate collection, identification, and understanding of the health hazards associated with these fibers are crucial for mitigation strategies and protection of public health.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Chenchen Xie, Chen Meng, Huilin Liu, Baoguo Sun
Summary: The development of food hazard factor (FHF) detection has been moving towards on-site inspection and mobile law enforcement, calling for simple, fast, and affordable analysis technology to ensure food safety and quality. This review comprehensively summarizes the progress in research on smartphone-assisted MIP optosensors, focusing on the key issues of accuracy and sensitivity.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Guillem Peris-Pastor, Cristian Azorin, Jose Grau, Juan L. Benede, Alberto Chisvert
Summary: Green Analytical Chemistry plays an important role in every stage of method development, including sample preparation. Extraction techniques have evolved from conventional ones to a variety of miniaturized techniques in order to enhance analytical performance and ensure safety for operators and the environment. Green metric tools are used to evaluate the impact and sustainability of methods, with AGREEprep selected as the most suitable tool for evaluating published methods in various applications. The miniaturization of sample preparation strategies has led to the use of less and safer solvents, reduced waste generation and energy consumption, and improved portability and throughput.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Helena Hruskova, Roman Reminek, Frantisek Foret
Summary: This review article summarizes the progress and recent studies in offline electromigration preparative techniques between 2018 and 2023. It covers various techniques including electrophoresis, free-flow electrophoresis, isoelectric focusing, and isotachophoresis, providing theoretical aspects, trends, and solutions to existing limitations in each technique.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Mayank Garg, Nicole Pamme
Summary: This review focuses on the removal strategies of templates from molecularly imprinted polymers (MIPs) used in diagnostic biosensors. Chemical-based and electrochemical-based template extraction approaches are summarized and evaluated, providing guidance for researchers in the fields of analytical chemistry, diagnostics, and materials science for the design of MIP-based sensors.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Ivneet Banga, Anirban Paul, Nathan Kodjo Mintah Churcher, Ruchita Mahesh Kumar, Sriram Muthukumar, Shalini Prasad
Summary: Breathomics is an emerging field that focuses on analyzing exhaled breath to diagnose and monitor respiratory diseases. Electrochemical sensors, with their high sensitivity, selectivity, and low cost, play a significant role in breathomics and can be integrated into portable devices for point-of-care diagnosis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Fabjola Bilo, Paola Cirelli, Laura Borgese
Summary: This review explores the application of X-ray fluorescence (XRF) spectrometry for elemental analysis of particulate matter (PM) in air quality monitoring. It discusses the fundamentals of XRF, experimental configurations, PM sampling devices and substrate, sample preparation strategies, qualitative and quantitative analysis, as well as the challenges faced by XRF in becoming a reliable analytical technique for PM analysis.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Hakim Faraji
Summary: The dispersive liquid-liquid microextraction (DLLME) technique is widely popular in analytical chemistry due to its high efficiency, cost-effectiveness, and simplicity. Recent advancements have addressed the limitations of DLLME, incorporating greener solvents, innovative dispersion strategies, and simplified procedures. These changes have made DLLME a more sustainable and efficient technique.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Sherin F. Hammad, Inas A. Abdallah, Alaa Bedair, Reda M. Abdelhameed, Marcello Locatelli, Fotouh R. Mansour
Summary: Carbon nanomaterials (CNMs) have excellent capabilities in terms of adsorption, enhanced oxidation, and photocatalysis, attracting widespread attention in different fields. Metal-organic frameworks (MOFs) have been widely used due to their regular network structure, porous nature, and large specific surface area. However, the instability of MOFs in aqueous solutions limits their applications in chemical sensing. Recent studies have focused on increasing the stability of MOFs in water-based matrices through chemical modifications using CNMs.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Alexandra Pape, Oliver J. Schmitz
Summary: Low temperature plasmas based on dielectric barrier discharges have emerged as a recent development in ion source research. These ion sources are applicable to heat-sensitive analytes and can ionize a wide range of compounds. Despite intensive research on important parameters such as configuration, shape, size, and materials in the past two decades, the actual ionization mechanism for all plasma gases has not been fully elucidated. This review provides an overview of atmospheric pressure ion sources, with a focus on plasma and dielectric barrier discharge based ion sources, summarizing the reactions occurring in the plasma and discussing the applications developed by different research groups.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Hai Xiong, Fengli Li, Linyu Zeng, Qiyu Lei
Summary: This review provides an overview of the emerging trends in the use of functional COF nanomaterials as biosensors for DNA/RNA detection. It summarizes the construction of DNA/RNA hybridized COF nanoprobes and their potential applications in bioanalyte detection, biosensing, biomarker imaging, and clinical biomedicine.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Bing Yan
Summary: This article summarizes the recent progress in logic gate computing and operation based on multiple luminescence response and chemical sensing for lanthanide functionalized MOF hybrid systems. The article first describes multi-color luminescence and the subsequent multiple luminescence response. The basic concept of logic gate operation and the advantages of lanthanide-based hybrid materials are then introduced. Reports on logic gate operation using pure lanthanide MOFs are provided, followed by a detailed summary of logic gate operations using lanthanide functionalized MOF hybrid materials. Additionally, the article discusses the practical luminescent detection of analytes by correlating the luminescence responsive signals and the concentration of different analytes. Finally, the article concludes with a prospect for this topic.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
Review
Chemistry, Analytical
Brij Mohan, Gurjaspreet Singh, Rakesh Kumar Gupta, Pawan Kumar Sharma, Alexander A. Solovev, Armando J. L. Pombeiro, Peng Ren
Summary: Porous materials, particularly hydrogen-bonded organic frameworks (HOFs), have gained significant attention due to their versatile applications and unique properties such as well-defined crystalline structure and easy regeneration processes. This article provides a comprehensive overview of HOFs, including synthesis methods, hydrogen bonding motifs, recent advancements, and potential applications, offering valuable guidance for further exploration in this dynamic field.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2024)
