Article
Engineering, Environmental
Yi Su, Marco Wenzel, Markus Seifert, Jan J. Weigand
Summary: In this study, a highly selective ion-imprinted brewer's spent grain (IIP-BSG) adsorbent was prepared using a high monomer/template molar ratio for efficient removal of uranyl ions from wastewater. The IIP-BSG exhibited high adsorption capacity, selectivity, and reusability, and showed potential for selective separation and concentration of U(VI) from nuclear wastewater and mine water.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Applied
Nadia H. Elsayed, Raedah A. S. Alatawi, M. Monier
Summary: The ion-imprinting strategy was used to develop a UO2(II) imprinted sorbent that can selectively remove UO2(II) ions from water. The sorbent showed high selectivity in multi-ionic solutions and maintained a high efficiency even after multiple regeneration and reuse cycles.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Analytical
Liyin Bu, Chang Su, Qingyuan Song, Ding Jiang, Xueling Shan, Wenchang Wang, Zhidong Chen
Summary: In this study, a rapid, convenient, and cheap method for detecting enrofloxacin was developed by combining a selective molecular imprinting polymer with the electrochemiluminescence method. The use of a zinc-based metal-organic framework and chitosan improved the detection sensitivity. This method can be widely applied in actual samples.
Article
Polymer Science
Aminul Islam, Hina Javed
Summary: A new tailor-fitted graphene oxide-vinyl pyridine ion-imprinted polymer (mGOVP/IIP) was synthesized and applied for the preconcentration and determination of Cu(II). The material showed high sorption capacity, fast kinetics, and good selectivity and regeneration efficiency.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Applied
Nadia H. Elsayed, M. Monier, Raedah A. S. Alatawi, Menier Al-Anazi
Summary: Cellulose was used as raw material for the production of sorbent microspheres for selective separation of uranyl ions. An amidoxime cellulosic derivative (AOCE) was synthesized by Michael addition followed by amidoximation reaction, and microspheres of ion-imprinted U-AOCE sorbent were made by crosslinking the UO22+ polymer complex with glyoxal and eluting the coordinated ions with H+/EDTA. The adsorption capacity of U-AOCE was significantly higher with enhanced adsorption selectivity for UO22+. The primary adsorption process involved coordination between UO22+ and the-NH2 and-OH groups of the amidoxime units.
CARBOHYDRATE POLYMERS
(2023)
Article
Biochemistry & Molecular Biology
Nadia H. Elsayed, M. Monier, Raedah A. S. Alatawi, Menier Al-Anazi, Mody Albalawi, Maher J. Alatawi
Summary: Amino-phenolic chitosan derivative was used to imprint uranyl ions, resulting in a high-efficiency sorbent material (U-APCS) with improved selectivity and adsorption capacity for UO22+. The adsorption mechanism was determined to be chemisorption or coordination, and the adsorption followed a pseudo-second-order kinetic model and a Langmuir isotherm model. Thermodynamic analysis indicated that the adsorption of UO22+ was endothermic and spontaneous.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Aminul Islam, Anjali Chauhan
Summary: A new Cd(II)-imprinting polymer was synthesized and used for the development of a dispersive magnetic solid-phase extraction method for the determination of Cd(II) in environmental samples. The material exhibited promising adsorption capacity and fast kinetics, making it a potential candidate for Cd(II) determination in various samples.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Analytical
Zeynep Gerdan, Yeseren Saylan, Mukden Ugur, Adil Denizli
Summary: The accumulation of metal ions in the body is caused by human activities and industrial uses. Copper, as the third most abundant ion found in the human body, is essential for health but high doses can lead to diseases. Different types of sensors are used to detect metal ions, and in this study, an ion-imprinted polymer-integrated plasmonic sensor was developed for real-time selective detection of copper ions.
Article
Polymer Science
Egla Yareth Bivian-Castro, Abraham Zepeda-Navarro, Jorge Luis Guzman-Mar, Marcos Flores-Alamo, Brenda Mata-Ortega
Summary: The novel [Cuphen(VBA)(2)H2O] complex was used to preorganize a new ion-imprinted polymer (IIP) by leaching Cu(II) from the molecular imprinted polymer (MIP). The characterization results showed that the IIP has higher surface area and is nonsoluble in water and polar solvents. The adsorption capacity of the IIP for copper(II) ions was determined, and the stability of the Cu-IIP complex was found to be higher than the Ni-IIP complex.
Article
Engineering, Environmental
Lu Yang, Jing Wang, Chun-Yang Li, Qisijing Liu, Jin Wang, Jing Wu, Huan Lv, Xue-Meng Ji, Jing-Min Liu, Shuo Wang
Summary: Biotoxins with high toxicity can be transformed into biochemical weapons, posing a significant threat to international public security. A molecular imprinting platform (HMON@MIP) was developed using hollow-structured microporous organic networks (HMONs) as imprinting carriers, enhancing the adsorption performance in terms of specificity, imprinting cavity density, and adsorption capacity. The platform shows promising generalizability by producing various MIP adsorbents through changing the biotoxin template, such as aflatoxin and sterigmatocystin. The developed imprinting platforms have great potential for precise food safety inspection.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemical Research Methods
Yuchen Wang, Mengqin Li, Liangyu Zhu, Yanmei Wang
Summary: In this study, on-line preconcentration and selective determination of trace sulfadiazine (SDZ) in milk and hen egg white samples were successfully achieved using capillary electrophoresis with molecularly imprinted polymer (MIP) coated capillary. The prepared SDZ-MIP-PMOXA coated capillary showed excellent performance in SDZ preconcentration, with a peak area 46 times higher compared to the bare capillary. The method was fully validated with good linearity, low detection limit, accuracy, and robustness. The SDZ-MIP-PMOXA coating also exhibited high selectivity and repeatability. Additionally, the application of the prepared capillary in detecting SDZ in spiked food samples demonstrated good recoveries.
JOURNAL OF CHROMATOGRAPHY A
(2023)
Article
Chemistry, Analytical
Abolfazle Darroudi
Summary: In this research study, thallium(I)-imprinted polymer and vortex-assisted liquid-liquid microextraction methods were used for ultra-preconcentration and extraction of thallium (I) ions in aqueous solution at ultra-trace levels. The method showed a good linear range, low detection limit, and high recovery rate for thallium (I) ions.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Taher Alizadeh, Shahed Zand Karimi
Summary: In this study, a uric-acid selective nano-sized molecularly imprinted polymer (nano-MIP) was successfully synthesized and applied for uric acid determination. The MIP exhibited good solubility in low dielectric solvents and showed higher response to uric acid compared to non-selective materials.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Minoo Barzkar, Alireza Ghiasvand, Mehdi Safdarian
Summary: A new Pb (II) magnetic ion-imprinted polymer (Pb-MIIP) was developed for selective extraction of Pb (II) from water. The MIIP nanostructures were synthesized using iron oxide nanoparticles coated with itaconic acid as a magnetic core, with additional components including a functional monomer, a cross-linker, and an initiator. The synthesis process was confirmed through instrumental and microscopic methods. The Pb (II)-MIIP method exhibited a detection limit of 0.21 μg/L, high recovery (>90%), and low relative standard deviation (<4.9%). The synthesized MIIP showed reusability and successful application in extracting Pb (II) from tap water samples.
Article
Chemistry, Applied
Zhengcan Chen, Xiaojian Ou, Weiwei Jia, Chunli Liu, Jun Zhang, Ting Huo, Xiaoyan Zhang, Yalan Chen, Yuan Sun, Jinian Zhu, Sujun Lu, Peng Zhang, Zhenbin Chen
Summary: A novel smart ion imprinted polymer (SIIP) was prepared by introducing a thermosensitive block segment polymer, PDEA, into the ion imprinted polymer matrix, which showed improved adsorption performance and selectivity compared to the ion imprinted polymer without PDEA block segment. The SIIP demonstrated a higher adsorption capacity and separation degree for ReO4- compared to the ion imprinted polymer without PDEA, and showed a better separation effect for Re in secondary superalloys leaching solution.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Analytical
Yujia Ying, Huilin Li
Summary: Enzymes play a crucial role as biological catalysts in accelerating biochemical reactions in living organisms. This study proposes a convenient method for monitoring enzymatic catalytic processes using native top-down mass spectrometry. By exploring the heterogeneity of the chymotrypsin sample and using tandem mass spectrometry, the researchers were able to monitor covalent and noncovalent enzymatic complexes, substrates, and products during catalysis. The results demonstrate that this method has the potential to be a promising tool for characterizing biocatalysts.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Kang Yang, Shuaibo Shi, Jinyu Wu, Shaolong Han, Shengdi Tai, Shishen Zhang, Kun Zhang
Summary: H2O and D2O are important analogues closely related to various industries and monitoring fields. This study successfully distinguishes and detects H2O and D2O by designing a novel eu(III)-macrocycle with dual emitters, Eu-2a, and conducting fluorescence titration experiments.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Julia Kuligowski, Alvaro Perez-Rubio, Marta Moreno-Torres, Polina Soluyanova, Judith Perez-Rojas, Ivan Rienda, David Perez-Guaita, Eugenia Pareja, Ramon Trullenque-Juan, Jose Castell, Marcha Verheijen, Florian Caiment, Ramiro Jover, Guillermo Quintas
Summary: This study introduces a novel variable selection approach called cluster PLS (c-PLS) to assess the joint impact of variable groups selected based on biological characteristics on the predictive performance of a multivariate model. The usefulness of c-PLS is shown using miRNomic and metabolomic datasets obtained from the analysis of liver tissue biopsies.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Meixue Lai, Lijie Zhong, Siyi Liu, Yitian Tang, Tingting Han, Huali Deng, Yu Bao, Yingming Ma, Wei Wang, Li Niu, Shiyu Gan
Summary: This study presents a method for constructing wearable sweat electrolyte sensors using carbon fiber-based solid-contact ion-selective electrodes (SC-ISEs). By using carbon fibers extracted from commercial cloth as electrode material, the cost and reproducibility issues of flexible SC-ISEs were addressed. The results showed that the carbon fiber-based SC-ISEs exhibited reversible voltammetric and stable impedance performances, and had high reproducibility of standard potentials between normal and bending states.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Yang, Ying Liu, Min Deng, Peipei Wang, Dan Cheng, Songjiao Li, Longwei He
Summary: A near-infrared fluorescent probe has been developed to accurately measure the levels of peroxynitrite (ONOO-) in the endoplasmic reticulum (ER) in acute lung injury (ALI). The probe demonstrated rapid response, high selectivity, good sensitivity, and enhanced fluorescence intensity in response to ONOO-. It was successfully used to detect changes in ONOO- levels and showed significant increases in an ALI cell model and an ALI mouse model.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yanping Wang, Yuemei Chen, Kejun Li, Jinrong Zhou, Xin Yuan, Mei Zhang, Ke Huang
Summary: In this work, a portable analytical system based on point discharge chemical vapor generation atomic emission spectrometry (PD-CVG-AES) coupling with gold filament enrichment was designed. The highly sensitive analysis of Hg2+ indirectly realized the detection of ascorbic acid (AA). The measurement is based on the fact that Ag+ can decrease the concentration of Hg2+ by forming Ag-Hg amalgam in the presence of the reductant SnCl2, while AA can pre-reduce Ag+ to Ag0, leading to the generation of silver nanoparticles (Ag NPs). The developed novel analytical strategy broadens the application of microplasma-based AES and offers a higher level of sensitivity compared to current AA detection techniques.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yundi Huang, Bo Song, Kaiwen Chen, Deshu Kong, Jingli Yuan
Summary: This study developed two lysosome-targetable background-free TGL probes for efficient and accurate detection of 1O2, which can be used for monitoring endogenous 1O2 concentrations in lysosomes and discriminating variability induced by different photosensitizers. Furthermore, a smart luminescent sensor film was successfully prepared for on-site 1O2 production detection during PDT processes, offering a promising clinical monitoring tool for skin diseases.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Wei Lang, Jia-Mei Qin, Qian-Yong Cao
Summary: A novel polymer-based probe P1 was successfully synthesized for fluorescently ratiometric sensing of H2S with high selectivity and sensitivity. A smartphone sensing platform was constructed to conduct visual quantitative detection of H2S. P1 can be employed in evaluating the level fluctuations of H2S in living cells, testing water samples/wine samples, and monitoring food freshness.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Yuanyuan Qin, Shuda Liu, Shuyun Meng, Dong Liu, Tianyan You
Summary: The study developed a split aptamer-based sandwich-type ratiometric biosensor for the detection of 17 beta-estradiol (E2) using photoelectrochemical and electrochemical assays. The biosensor utilized split aptamer fragments to recognize E2 and trigger a hybridization chain reaction, resulting in the production of double-stranded DNA labeled with CdTe quantum dots. This DNA complex was able to sensitize CdTe quantum dots and generate response signals for E2 detection. The developed biosensor demonstrated high sensitivity and accuracy with two linear ranges and low detection limits.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Siriwan Teepoo, Jongjit Jantra, Khaunnapa Panapong, David Taiwo Ajayi
Summary: A novel immunochromatographic assay based on hyperbranched Au plasmonic blackbodies with a smartphone readout was developed for rapid and sensitive detection of leucomalachite green residues in fish and shrimp products.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Andrea L. Larraga-Urdaz, Borja Moreira-Alvarez, Jorge Ruiz Encinar, Jose M. Costa-Fernandez, Maria Luisa Fernandez-Sanchez
Summary: A major challenge in the 21st century is the development of point-of-care diagnostic tools. In this study, a highly sensitive and simple bioassay using AuNPs and MNAzymes was developed for rapid detection and quantification of miRNA-4739. The proposed strategy shows potential for breast cancer diagnosis.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Xiaohan Zhao, Anyu Wang, Lingzi Zhai, Jiuhe Gao, Sizhe Lyu, Yingshan Jiang, Tian Zhong, Ying Xiao, Xi Yu
Summary: A novel method using polystyrene-coated magnetic nanoparticles for extracting monohydroxy polycyclic aromatic hydrocarbons from urine samples was investigated. The proposed method is simple, sensitive, and efficient, with desirable sensitivity for analyzing low-abundance metabolites in large volumes of complex urine samples.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Dongjuan Wang, Xiuqian Ding, Jinling Xie, Juan Wang, Guanhao Li, Xin Zhou
Summary: In this study, a three-in-one sensor was developed for real-time detection of biogenic amines (BAs) with high sensitivity and selectivity. The sensor showed multimodal responses and could be used to fabricate portable devices for on-site non-destructive assessment of food spoilage indicators.
ANALYTICA CHIMICA ACTA
(2024)
Article
Chemistry, Analytical
Jinting Meng, Zihao Xu, Shasha Zheng, Hongqun Yang, Tianfu Wang, Hong Wang, Yingwei Zhang
Summary: This study demonstrates the development of a cascade signal amplification system using a multi-pedal DNA walker and strand displacement reactions for the electrochemical detection of miRNA-155. The biosensor exhibited high sensitivity, selectivity, and the potential for clinical applications.
ANALYTICA CHIMICA ACTA
(2024)