Article
Chemistry, Physical
Francisco Sanchez-Ferez, Teresa Calvet, Merce Font-Bardia, Josefina Pons
Summary: Extensive research has been conducted on the isolation and characterization of Cu(II) coordination polymers, with the role of solvent molecules through intermolecular interactions being a determining factor in the final crystal structure. The study revealed the structures of two Cu(II) concomitant 1D polymers containing piperonylic acid and 4,4'-bipyridine, showcasing different polymeric chain arrangements influenced by the solvent molecules.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Nanoscience & Nanotechnology
Changchun Fan, Long Chen, Rong Jiang, Jiahui Ye, Haoquan Li, Yulin Shi, Yun Luo, Gang Wang, Juan Hou, Xuhong Guo
Summary: ZnFe2O4 spinel magnetic nanoparticles were successfully synthesized and utilized in electrochemical trace detection of Hg(II), Pb(II), Cu(II), and glucose. The modified electrodes showed excellent performance in terms of sensitivity, stability, and repeatability for heavy metal ions and nonenzymatic glucose detection.
ACS APPLIED NANO MATERIALS
(2021)
Article
Crystallography
Ilyas F. Sakhapov, Almaz A. Zagidullin, Alexey B. Dobrynin, Igor A. Litvinov, Dmitry G. Yakhvarov, Mikhail A. Bondarenko, Alexander S. Novikov, Vladimir P. Fedin, Sergey A. Adonin
Summary: The crystal structure of 3,3',5,5'-tetrabromo-4,4'-bipyridine (BrBipy, 1) was determined, and the non-covalent interactions in solid state were investigated using theoretical methods. By using BrBipy as a linker ligand, a 1D coordination polymer {[Co(BrBipy)(NO3)(2)(CH3OH)(2)]} (2) was synthesized and characterized.
Article
Chemistry, Inorganic & Nuclear
Pavel A. Demakov, Alexey A. Ryadun, Vladimir P. Fedin
Summary: A new metal-organic coordination polymer was synthesized and characterized. The compound exhibits a two-dimensional structure and its thermal and luminescent properties were investigated.
Article
Biochemistry & Molecular Biology
Zhiying Shao, Jilai Lu, Jian Ding, Fengjiao Fan, Xinyang Sun, Peng Li, Yong Fang, Qiuhui Hu
Summary: The synthesized chitosan-pectin gel beads showed excellent adsorption performance for removing heavy metals from water. With good structural characteristics, mechanical strength, and stability, CPBs were found to have great reusability and potential for environmental protection and reuse.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemical Research Methods
Danqun Huo, Ya Zhang, Ning Li, Wenhao Ma, Huan Liu, Guoren Xu, Zhihua Li, Mei Yang, Changjun Hou
Summary: In this study, an innovative electrochemical sensor was developed for simultaneous detection of heavy metal ions Cd2+, Hg2+, Cu2+, and Pb2+. The sensor, which used a screen-printed electrode modified with 3DGO and UiO-66-NH2 composite nanomaterials, could conveniently, sensitively, and reliably detect trace amounts of heavy metal ions in food within 150 seconds.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Dalia Saleh, Dalal Alhashmialameer, Samy F. Mahmoud, Safaa Eldin H. Etaiw
Summary: Ultrasonic self-assembly method was used to prepare new nano supramolecular coordination polymers (SCPs). The SCPs showed potent anticancer and anti-pathogenic micro-organisms activities, with higher cytotoxicity against specific cancer cell lines and minimal effect on normal cells. They also exhibited antioxidant activities, erythrocyte hemolysis, DNA binding, and antimicrobial activities.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Analytical
Ivana Skugor Roncevic, Nives Vladislavic, Nabanita Chatterjee, Vesna Sokol, Clive L. Oliver, Boris-Marko Kukovec
Summary: The study synthesized novel cobalt(II) and nickel(II) coordination polymers containing 6-oxonicotinate salts and 4,4'-bipyridine, forming crystal structures through hydrogen bonds and pi-pi interactions. The electrochemical behavior of the isostructural coordination polymers 1 and 2 differed due to the nature of the metal ions (cobalt(II) versus nickel(II)).
Article
Biochemistry & Molecular Biology
Antonia Garypidou, Konstantinos Ypsilantis, John C. Plakatouras, Achilleas Garoufis
Summary: Mixed-ligand tetranuclear supramolecular coordination complexes of Pt(II)-p-biphenyl and bridging ligands derivatives were synthesized and characterized. The crystal structure of one complex was determined using single-crystal diffraction methods. The emission profiles of the tetranuclear complexes were influenced by the length of the bridging ligands and solvent polarity.
Article
Chemistry, Physical
Simin Zhuo, Weiping Wu, Yingle Liu, Like Zou, Yu Wu, Lot Botha, Abhinav Kumar, Mohd Afzal, Abdullah Alarifi
Summary: In this study, a new Zn(II)-based coordination polymer (CP) was synthesized and characterized, showing potential as a fluorescent sensor and photocatalyst.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Dalia Saleh, Samy F. Mahmoud, Safaa Eldin H. Etaiw
Summary: Nanocrystals of coordination polymers SCP1 and SCP2 were synthesized using ultrasonication. They exhibit intricate structures and various biological activities.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Analytical
Laia L. Fernandez, Julio Bastos-Arrieta, Cristina Palet, Mireia Baeza
Summary: This study describes the implementation of customized graphite electrodes decorated with Hg-NPs for the electrochemical detection of Cd, Pb, and Cu. The results show improved responses towards these analytes compared to bare graphite electrodes. The analytical performance of the sensors was evaluated using square-wave anodic stripping voltammetry and showed good agreement with ICP-MS measurements.
Article
Chemistry, Inorganic & Nuclear
Xian-Ying Duan, Mei-Lin Wei
Summary: A proton-conductive Cu(II) coordination complex was synthesized under hydrothermal condition and characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction analyses. The complex exhibited good proton conductivities at 100 degrees C in the relative humidity range 35-98%.
JOURNAL OF SOLID STATE CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Alessandra Scano, Elisabetta Mereu, Valentina Cabras, Giada Mannias, Alessandra Garau, Martina Pilloni, Germano Orru, Guido Ennas
Summary: In this study, the green preparation of one-dimensional metal coordination polymers was achieved using a sonochemical approach. By ultrasonication, the spacer ligand 4,4'-bipyridine was reacted with chloride or acetate zinc salts in benign solvents such as ethanol and water. The resulting coordination polymers showed antimicrobial activity in the form of nanocrystals with an average crystal size of around 100 nm.
Article
Chemistry, Analytical
Baitong Niu, Biying Yao, Meihua Zhu, Hongxu Guo, Shaoming Ying, Zhangxu Chen
Summary: A novel metal-organic framework material with fern leave-like structure was synthesized through a one-pot hydrothermal reaction, showing effective electrochemical detection ability for trace amounts of heavy metal ions in aqueous solution. The modified electrode demonstrated good stability, repeatability, and practical detection capability.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Alexandra-Gabriela Oancea, Arabela Elena Untea, Catalin Dragomir, Gabriel Lucian Radu
Summary: This study aimed to adapt a simple and rapid method to determine the oxidative stability of milk and quantify malondialdehyde, a lipid oxidation product. By modifying parameters such as incubation time and TBA concentration, the study successfully analyzed the degradation of fatty acids in cow and sheep milk samples, establishing a positive correlation between fatty acid profiles and absorbance values.
APPLIED SCIENCES-BASEL
(2022)
Review
Chemistry, Analytical
Daniel Preda, Iulia Gabriela David, Dana-Elena Popa, Mihaela Buleandra, Gabriel Lucian Radu
Summary: This review provides a comprehensive overview of MIP-modified carbon-based electrodes developed in recent years for antibiotic detection. The preparation and modification procedures of MIPs and electrodes, as well as the performance characteristics and applications for antibiotic quantification from different samples, are discussed.
Article
Biochemical Research Methods
Madalina-Petruta Bucur, Bogdan Bucur, Elena Bacalum, Victor David, Gabriel Lucian Radu
Summary: Mixing organic solvents with enzymes allows for higher total organic solvent content and reduces negative effects on enzyme activity. Acetonitrile/ethanol/water combination has minimal impact on enzymes and insecticides. The proposed analytical method improves selectivity and detection limits for chlorpyrifos-oxon and carbofuran analysis in river waters and soil samples.
ANALYTICAL BIOCHEMISTRY
(2022)
Article
Electrochemistry
Maria-Cristina Radulescu, Madalina-Petruta Bucur, Bogdan Bucur, Gabriel Lucian Radu
Summary: Sensitive and stable electrodes modified with 4-aminothiophenol were developed for heavy metal detection based on coordination bonds. The modification process using diazonium chemistry allows good control and reproducibility. The electrodes showed improved performance with the presence of DPPH in the electrodeposition media.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Biology
Emanuel Vamanu, Florentina Gatea, Ionela Avram, Gabriel Lucian Radu, Sandeep Kumar Singh
Summary: The administration of chokeberry extract in the GIS1 system was found to have a strong antimicrobial effect and the presence of new organic acids as biomarkers. It gradually increased antioxidant status for up to three months and then decreased along with the reduction of Enterobacteriaceae. Butyric acid was generally unaffected by the antimicrobial effect after three months. The controlled use of this extract corrected the dysbiotic pattern resulting from the long-term use of sweeteners.
Review
Biochemistry & Molecular Biology
Madalina-Petruta Bucur, Maria-Cristina Radulescu, Gabriel Lucian Radu, Bogdan Bucur
Summary: Ultrasound generates high-energy behaviour in liquids by creating cavities through large pressure variations, resulting in (bio)chemical effects and material modification. Although numerous cavity-based treatments have been reported in food processes, the transition from research to industrial applications is hindered by specific engineering factors such as combining multiple ultrasound sources, more powerful wave generators, or tank geometry. This review focuses on the challenges and developments of cavity-based treatments for the food industry, using two representative raw materials (fruit and milk) with significantly different properties. Both active compound extraction and ultrasound-based food processing techniques are taken into consideration.
Article
Biochemistry & Molecular Biology
Sandra A. V. Eremia, Camelia Albu, Gabriel L. Radu, Marian Ion
Summary: In recent years, the wine industry has been interested in the presence of melatonin in wines. This study focused on optimizing the extraction process for melatonin in wines using various methods such as SPE, QuEChERS, and DLLME. The HPLC-FL method was adapted and validated for melatonin analysis, and results showed that the DLLME method was the most effective. Melatonin levels in Feteasca Neagra and Cabernet Sauvignon wines were found to vary depending on the winemaking process.
Article
Biochemistry & Molecular Biology
Sandra A. V. Eremia, Camelia Albu, Gabriel-Lucian Radu, Andreia Alecu, Elena Brinduse
Summary: Previously, the main antioxidant role in wine was attributed to polyphenolic compounds, but the discovery of melatonin in wines opened up a new area of research due to its potential synergistic effects with other antioxidants. By treating wines with different melatonin concentrations during the pre-stage of winemaking, the study found an increase in antioxidant compound concentrations, an intensification in enzyme activity, and a modification in gene expression, leading to red wines with increased antioxidant activity.
Article
Biochemistry & Molecular Biology
Elena Neagu, Gabriela Paun, Camelia Albu, Sandra Ana-Maria Victoria Eremia, Gabriel Lucian Radu
Summary: Recently, there has been growing interest in developing phytochemical alternatives to prevent and treat type 2 diabetes by inhibiting digestive enzymes that reduce or prevent glucose absorption. This study analyzed the inhibitory activities of alpha-amylase and alpha-glucosidase by polyphenolic compound-rich extracts of Artemisia abrotanum and Symphytum officinale obtained through membrane technologies. The extracts showed potential as complementary therapy for type 2 diabetes management, with high quantities of polyphenols and flavones, along with significant inhibitory activities against the enzymes.
Article
Biochemistry & Molecular Biology
Elena Neagu, Gabriela Paun, Camelia Albu, Oana Teodora Apreutesei, Gabriel Lucian Radu
Summary: This study analyzed the potential of Artemisia absinthium, Artemisia vulgaris, and Trigonella foenum-graecum herbs in treating diabetes and inflammatory diseases. The extracts of these herbs showed significant inhibitory activity, indicating their potential as natural remedies.
Review
Chemistry, Analytical
Gabriel-Lucian Radu, Simona Carmen Litescu, Alin Enache, Camelia Albu, Sandra A. V. Eremia
Summary: In recent years, new sensor-based technologies have been developed to meet the demand for rapid and accurate analysis of food and environment. Electrochemical sensors, especially those incorporating molecularly imprinted polymers (MIPs) and graphene, have gained considerable attention due to their portability, ease of use, low costs, and enhanced properties such as improved sensitivity and selectivity. This review provides an overview of the recent research on the use of MIPs and graphene in electrochemical sensors for food and environmental analyses, discussing their pros and cons and suggesting potential future developments in the field.
Article
Chemistry, Analytical
Daniel Preda, Maria Lorena Jinga, Iulia Gabriela David, Gabriel Lucian Radu
Summary: A new method using a molecularly imprinted polymer (MIP)-modified pencil graphite electrode (PGE) is proposed for the determination of antiplatelet drug dipyridamole (DIP) in pharmaceuticals. The modified electrode (MIP_PGE) was prepared by electropolymerization of caffeic acid (CA) in the presence of DIP and subsequent DIP extraction with ethanol. The method showed higher sensitivity and lower detection limits compared to a bare PGE.
Article
Chemistry, Multidisciplinary
Iuliana Peste-Ras Marcu, Gabriel Lucian Radu
Summary: This study assessed the effect of peel and seed removal on five Romanian tomato varieties and found that both procedures resulted in significant losses of nutritional and physical-chemical properties, with peeling having a greater impact.
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Iuliana Peste-Ras Marcu, Gabriel Lucian Radu
Summary: Peeling and seed removal of tomato fruits lead to significant losses in nutritional and physical-chemical properties, with peeling having a more pronounced effect on hydrogen potential pH and dry substance content.
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)