Article
Chemistry, Multidisciplinary
Jocasta Avila, Chiara Corsini, Cintia M. Correa, Martin Rosenthal, Agilio Padua, Margarida Costa Gomes
Summary: This Perspective highlights the pathways to prepare porous ionic liquids using easily accessible materials for reduced environmental impact. The study demonstrates that suspensions of porous solids are stable in eutectic mixtures, which indicates their potential in preparing porous ionic liquids. Porous ionic liquids maintain the wide electrochemical window observed in their precursor pure ionic liquids, making them suitable for green electrochemical reactions, especially those involving gases with enhanced solubility in the porous suspensions. Furthermore, their capacity as gas-rich media suggests potential sustainable biomedical and pharmaceutical applications, provided that non-toxic, biocompatible ionic liquids and porous solids are utilized.
Article
Chemistry, Multidisciplinary
Xuantong Sun, Xi Wang, Fengqiang Sun, Mingwei Tian, Lijun Qu, Patsy Perry, Huw Ovens, Xuqing Liu
Summary: A green chemistry strategy has been developed to separate and regenerate waste textiles at the molecular level, aiming to reduce the large amount of waste textiles generated by the fast fashion industry. This strategy also provides a new source of fibers to address fossil fuel reserve shortages caused by chemical fiber industries and global food shortages caused by natural fiber production.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Organic
Gaurav Badhani, Abhisek Joshi, Subbarayappa Adimurthy
Summary: The study introduces a metal-free method for the synthesis of imines using oxygen as the terminal oxidant, achieving oxidative coupling of amines and alcohols to form C-N, C-S, and C-C bonds. This method features mild reaction conditions and broad applicability.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Toshiyuki Itoh, Yumiko Takagi
Summary: Biocatalysis is an important tool in organic synthesis, chemical compound degradation, and biosensor applications. Laccases, as copper-containing oxidases, catalyze the conversion of polyphenols or amine derivatives using molecular oxygen. In recent years, there has been a growing interest in utilizing laccase-mediated reactions in ionic liquids for selective oxidative chemical conversions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Biochemical Research Methods
Slavica Razic, Slobodan Gadzuric, Tatjana Trtic-Petrovic
Summary: Ionic liquids, known as designer solvents, have unique physicochemical properties and are used in sample pretreatment in analytical sciences. Validating newly proposed analytical methods using ionic liquids is crucial to demonstrate their reliability and accuracy. Additionally, this article discusses potential toxicity of ionic liquids.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Binglan Wu, Xueying Zhan, Peng Yu, Jun Meng, Marshet Getaye Sendeku, Fekadu Tsegaye Dajan, Ning Gao, Wenjia Lai, Ying Yang, Zhenxing Wang, Fengmei Wang
Summary: A novel In4/3P2Se6 nanosheet photocatalyst was synthesized and found to exhibit high yield and selectivity for the simultaneous production of hydrogen gas and N-benzylidenebenzylamine in water and acetonitrile solvents.
Article
Multidisciplinary Sciences
Cheng Wang, Zirui Qiao, Yulan Tian, Haijun Yang, Huaqiang Cao, Anthony K. Cheetham
Summary: Imines can be synthesized directly from phenylmethanol and ben-zylamine (or aniline) using carbon nanostructures as metal-free catalysts, yielding imines with up to 98% yield and water as the only by-product. The catalytic mechanism involves the reduction of O-2 to O-2(center dot-) by the unpaired electrons in carbon catalysts, triggering the oxidative coupling reaction to form imines, while the holes in the carbon catalysts receive electrons from the amine to restore the spin states. This work provides a new avenue for synthesizing carbon catalysts and has great potential for industrial applications.
Article
Chemistry, Multidisciplinary
Sanjit Mondal, Soumya Ranjan Das, Lipipuspa Sahoo, Sudipta Dutta, Ujjal K. Gautam
Summary: This article presents a unique property of carbon quantum dots (CQDs) that they can capture large amounts of molecular oxygen from the air and the quantity can be controlled by light irradiation. Research shows that the adsorption of oxygen by CQDs is tunable, and the oxygen enrichment enhances the photocatalytic efficiency of CQDs towards oxidation of benzylamines in the air compared to existing photocatalysts.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Lifang Chen, Yuhang Xiong, Hao Qin, Zhiwen Qi
Summary: This review summarizes the recent progress in experimental and theoretical studies on the dehydration of carbohydrates to produce 5-hydroxymethylfurfural (HMF) using ionic liquids (ILs) and deep eutectic solvents (DESs) as catalysts or solvents. It also provides an overview of catalytic transformations of HMF to downstream products using ILs and DESs. The challenges and prospects of ILs and DESs for the production of HMF and its derivatives from biomass are discussed.
Article
Chemistry, Multidisciplinary
Taemin Kim, Dong Il Park, Sojin Kim, Dibya Yadav, Sugyeong Hong, Sun Hee Kim, Hyo Jae Yoon, Kyoungsuk Jin
Summary: This study reports an electrochemical reductive amination method for sustainable synthesis. Cu metal electrodes achieved Faradaic efficiencies of about 83%. The origin of protons during the electrochemical reductive amination process was scrutinized through experiments with deuterated solvent and additional proton sources. CW-EPR analysis captured the radical intermediate species formed during the catalytic cycle, advancing the mechanistic understanding of electrochemical reductive amination.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yao Fang, Xuhui Wei, Haifeng Liu, Shugong Gao, Kun Jia, Junwei Wang, Jiazang Chen
Summary: The correlation between photoinduced hole extraction and the Fermi level promotes the mineralization of contaminants by facilitating electron transfer from a semiconductor to the solution. We have developed a fixed-bed photocatalyst based on a homogeneous contact that enhances oxygen reduction through interfacial electron transfer and collision between dissolved oxygen and catalytic sites. This photocatalyst configuration also reduces competitive light absorption by contaminants and cocatalysts. The efficient electron transfer synergistically promotes the generation of hydroxyl radicals for mineralization.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Chi Zhang, Meiling Shao, Dongqing Wu, Zhongyi Li, Muzhi Zhao, Xiangfei Zhang, Bin Zhai, Yunjun Luo, Xiaoyu Li
Summary: In this study, two novel azide ionic liquids (AILs) were designed and synthesized for highly efficient azidation reactions of polymers under mild conditions. Compared with traditional methods, both AILs exhibited higher reaction rates and better functional group tolerance, and they could also serve as both reagents and solvents. Theoretical simulations revealed that the excellent performance of AILs was attributed to the presence of ion pairs and the crucial role of E3 moieties. Additionally, the AILs could be easily regenerated after the reaction, providing a safer, greener, and more efficient synthesis route for azide polymers.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Xia Zhao, Zhi Wang, Xiujuan Qi, Siwei Song, Shi Huang, Kangcai Wang, Qinghua Zhang
Summary: Six new energetic complexes with good thermal stabilities and excellent specific impulses were synthesized and characterized in this study. They exhibited great potential as promoters for the development of green hypergolic bipropellants, showing high catalytic activity and short ignition delay time in hypergolic reactions. Their isostructural characteristics also made them ideal candidates for studying structure-performance relationships.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Kun Wu, Xin-Yi Liu, Pei-Wen Cheng, Yong-Liang Huang, Ji Zheng, Mo Xie, Weigang Lu, Dan Li
Summary: Interfacial charge transfer on the surface of heterogeneous photocatalysts plays a crucial role in determining the efficiency of reactive oxygen species (ROS) generation and aerobic oxidation reactions. In this study, we used reticular chemistry in metal-organic frameworks (MOFs) to design a series of isostructural Ni-8-MOFs with linearly bridged bipyrazoles as organic linkers. These crystalline Ni(8)-MOFs demonstrated improved charge separation and transfer efficiency under visible-light irradiation due to the electron-accepting capacity tuning of the pyrazole-bridging units. Among them, JNU-214, which contained a benzoselenadiazole unit, exhibited the highest photocatalytic performance in the aerobic oxidation of benzylamines.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Mark. N. Kobrak, Dmytro Nykypanchuk, Camiel H. C. Janssen
Summary: Mixtures of trihexylamine and cyclic carboxylic acids were used as solvents for extracting zinc salts from water. The choice of zinc salt anions represented a range of solvation properties, and their influence on extraction was investigated. Small-angle x-ray scattering was used to study the liquid structure. The results showed that extraction was strongly affected by the Hofmeister effect, but the local liquid structure was not sensitive to the solvation properties of the anions. Unlike similar studies, the strength of the Hofmeister effect did not change with the composition of the mixtures. (c) 2023 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ambra M. Fiore, Gaspare Varvaro, Elisabetta Agostinelli, Annarosa Mangone, Elvira De Giglio, Roberto Terzano, Ignazio Allegretta, Maria Michela Dell'Anna, Saverio Fiore, Piero Mastrorilli
Summary: Weakly magnetic hematite nanoparticles were synthesized at 400 degrees C and proved to be an efficient and recyclable catalyst for the hydrogenation of nitroarenes.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Antonio Monopoli, Michele Casiello, Caterina Fusco, Lucia D'Accolti, Francesco Iannone, Angelo Nacci
Summary: A new expeditious synthesis of tetramethyl salvianolic acid F is proposed using a sequential double Heck coupling catalyzed by palladium nanoparticles in ionic liquids. This method achieves a high overall yield of 66% and allows for the synthesis of unnatural salvianolic-like compounds with potential bioactivity.
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Viviana Vergaro, Francesca Baldassarre, Federica De Castro, Danilo Migoni, Maria Michela Dell'Anna, Piero Mastrorilli, Francesco Paolo Fanizzi, Giuseppe Ciccarella
Summary: This study evaluated the therapeutic efficacy of low-intensity visible light responsive nanocolloids of a Pt-based drug in an in vitro cancer cell model. The results showed that the light-stimuli responsive nanoformulation significantly enhanced the bio activity of the drug and demonstrated promising delivery capabilities in 3D in vitro spheroids.
BIOINORGANIC CHEMISTRY AND APPLICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Antonio Monopoli, Giovanni Ventura, Andrea Aloia, Fulvio Ciriaco, Angelo Nacci, Tommaso R. Cataldi, Cosima D. Calvano
Summary: This study explored the rational design of matrix for enhanced sensitivity and overall performance of matrix-assisted laser desorption/ionization mass spectrometry. Various matrices with different functionalities and substituents were synthesized and tested across different sample types. The results demonstrated improved performance in terms of ionization capability and interference-free spectra, especially for the analysis of phospholipids and neutral lipids.
Article
Chemistry, Physical
Ambra Maria Fiore, Giuseppe Romanazzi, Cristina Leonelli, Piero Mastrorilli, Maria Michela Dell'Anna
Summary: Biodiesel obtained from the transesterification of vegetable oils contains polyunsaturated fatty esters which negatively affect its oxidation stability. Catalytic partial hydrogenation can upgrade biodiesel by converting polyunsaturated fatty esters into monounsaturated methyl oleate. In this study, polymer-supported palladium and nickel nanoparticles were tested as catalysts for upgrading biodiesels under mild conditions. The palladium catalyst showed high activity but poor selectivity, while the nickel catalyst exhibited lower activity but higher selectivity. The recyclability tests demonstrated that the nickel-based system can retain its activity and selectivity for at least five subsequent runs, providing an opportunity for waste biomass valorization.
Article
Chemistry, Multidisciplinary
Biagia Musio, Stefano Todisco, Marica Antonicelli, Cristiano Garino, Marco Arlorio, Piero Mastrorilli, Mario Latronico, Vito Gallo
Summary: The analytical method based on NMR described in this paper is used to authenticate saffron samples by detecting adulterants and distinguishing between organic and conventional cultivation practices. This methodology proves to be sensitive to minor metabolic variations in saffron composition caused by adulterants, with both turmeric and safflower detectable at a concentration of 5% in aqueous extracts. The study also reveals a lower limit of detection for safflower in organic extracts at 20%.
APPLIED SCIENCES-BASEL
(2022)
Article
Multidisciplinary Sciences
Caterina Fusco, Michele Casiello, Pasquale Pisani, Antonio Monopoli, Fiorenza Fanelli, Werner Oberhauser, Rosella Attrotto, Angelo Nacci, Lucia D'Accolti
Summary: Photoreduction of CO2 with sunlight using a low-cost catalytic system based on steel slag modified with nanostructured palladium was investigated, and resulted in the conversion of CO2 into methanol and hydrogen.
SCIENTIFIC REPORTS
(2022)
Article
Food Science & Technology
Maria Tufariello, Lorenzo Palombi, Antonino Rizzuti, Biagia Musio, Vittorio Capozzi, Vito Gallo, Piero Mastrorilli, Francesco Grieco
Summary: This study investigated the effects of different yeast strains on the chemical and volatile profiles of rose wine and sparkling wine. The results showed that using autochthonous yeast strains significantly influenced the composition of sparkling wine, leading to distinct aroma and metabolome compared to commercial yeast strains.
Article
Chemistry, Physical
Valentina Petrelli, Giuseppe Romanazzi, Cecilia Mortalo, Cristina Leonelli, Mauro Zapparoli, Elvira De Giglio, Cosima Damiana Calvano, Maria Michela Dell'Anna, Piero Mastrorilli
Summary: A nitrogen-doped polymer supported cobalt catalyst (Co-pol) was synthesized and used as an active and recyclable catalyst for nitroarene reduction. The catalysis was truly heterogeneous and prevented hydrodehalogenation. STEM and EDS analyses confirmed the presence of cobalt(0) nanoparticles as the active species. Nitrogen atoms in the catalytic support played a beneficial role in the catalytic activity.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Valentina Petrelli, Maria Michela Dell'Anna, Piero Mastrorilli, Veronica Viola, Michelina Catauro, Antonio D'Angelo
Summary: Hybrid materials composed of organic and inorganic components at the nanometer or molecular level have been studied for their potential applications in the biological and medical fields. This study focuses on the synthesis and characterization of a sol-gel-derived hybrid material consisting of silica, polyethylene glycol, and the antioxidant flavonoid quercetin. The structural and biological properties of the hybrid systems were investigated by varying the concentrations of quercetin and polyethylene glycol, and results showed a controlled release of quercetin over time, indicating its potential use in drug delivery.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Inorganic & Nuclear
Ambra Maria Fiore, Valentina Petrelli, Christophe Fliedel, Eric Manoury, Piero Mastrorilli, Rinaldo Poli
Summary: The solution behavior of complex [Rh(COD)(& mu;-OAc)](2) in dichloromethane has been investigated in the absence and presence of PPN+OAc- using multinuclear NMR spectroscopy. The addition of PPN+OAc- results in the generation of [Rh(COD)(OAc)(2)](-) through equilibration. Rapid exchange between different Rh complexes and acetate ligands is observed at room temperature, but freezing the exchange at lower temperatures allows for the coalescence of certain NMR resonances.
DALTON TRANSACTIONS
(2023)
Article
Biochemistry & Molecular Biology
Elhussein Ahmed, Biagia Musio, Stefano Todisco, Piero Mastrorilli, Vito Gallo, Maria Saponari, Franco Nigro, Stefania Gualano, Franco Santoro
Summary: Olive quick decline syndrome (OQDS) is a disease that has been seriously affecting olive trees in southern Italy since around 2009. This study analyzed early stage infected leaves of olive plants using nuclear magnetic resonance (NMR), hyperspectral reflectance (HSR), and chemometrics, and found that specific hydrosoluble metabolites were indicative of Xf infection. This information is crucial for the development of HSR-based sensors for early detection of Xf infections in olive trees.
Review
Biochemistry & Molecular Biology
Abdollah Neshat, Piero Mastrorilli, Ali Mousavizadeh Mobarakeh
Summary: Since the discovery of persistent carbenes, the design and applications of this class of ligands and their metal complexes have rapidly grown. N-heterocyclic carbenes (NHCs) have become popular among chemists due to their modular synthesis and adjustability. The strength of the metal-carbon bond in transition metal complexes bearing NHCs depends on the energy match between the NHC ligand and the metal ion. NHC ligands have been explored with both transition metals and main group elements. The catalytic applications of NHC ligands linked with a second tether have been extensively studied, with carbon-carbon coupling reactions, transfer hydrogenation, ketone hydrosilylation, and chiral catalysis being among the most popular reactions. Areas such as CO2 reduction and C-H borylation have received less attention. The synthesis and applications of transition metal complexes are also covered.
