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Study of Cytotoxic and Antibacterial Activity of Ag‐ and Mg‐Dual‐Doped ZnO Nanoparticles

von Aytan Azizi et al.

· 09.03.2024

A simple process for the fabrication of silver and magnesium dual doped Zinc oxide nanoparticles (Ag/Mg−ZnO NP) is described, which were studied for their anti-bacterial effect towards Streptococcus mutans bacteria, as well as for their cytotoxic ac...

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Unraveling the Mechanism of Doping Borophene

von Kailash Pati et al.

· 09.03.2024

The nitrogen doping mechanism into borophene is investigated. The sp ² orbitals of boron atoms in alternative triangular motifs are responsible for arranging themselves to accommodate the electron of N atom. While heavier atoms (Fe, Co, Ni) dis...

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A Fast HPLC/UV Method for Determination of Ketoprofen in Cellular Media

von Oleksandra Vozniuk et al.

· 09.03.2024

A simple, sensitive and quick HPLC method was developed for the determination of ketoprofen in cell culture media. Separation was performed using a gradient on a C18 column with a mobile phase of acetonitrile and acidified miliQ water. The method wa...

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Brownmillerite Calcium Ferrite, a Promising Perovskite‐Related Material in the Degradation of a Tight Dye under Ambient Conditions

von Zahra Noori et al.

· 09.03.2024

Synthesized and characterized brownmillerite type Ca₂Fe₂O₅ nanoparticles degrade Alizarin Red S (ARS) quinone dye in the darkness, making it a promising material for the degradation of not only ARS but of other persistent dyes, too. Abstract Evalu...

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Intramolecular CH‐Hydrogen Bonding During the Dissociation of the Oxaphosphetane Intermediate Facilitates Z/E‐Selectivity in Wittig Olefination

von Kukkamudi Sreenivas et al.

· 09.03.2024

The Z-selective synthesis of novel nitrostilbenes has been reported. An intrinsic role of intramolecular hydrogen bonding during the dissociation of OPA-intermediate is critical for the stereoselective Wittig olefination. DFT calculations and X-ray ...

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Front Cover: (ChemistryOpen 3/2024)

09.03.2024

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Chemical Profiling and Antioxidant, Antimicrobial, and Hemolytic Properties of Euphorbia calyptrata (l.) Essential oils: in Vitro and in Silico Analysis

von Fatima El et al.

· 26.03.2024

Euphorbia calyptrata (L.) is a medicinal plant used in traditional medicine. In the present work, essential oils from Euphorbia calyptrate were studied in terms of chemical composition, antioxidant, antimicrobial, and hemolytic properties. Results s...

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A Simple Cost‐Effective Method to Fabricate Single Nanochannels by Embedding Electrospun Polyethylene Oxide Nanofibers

von Lei Zhou et al.

· 21.03.2024

In this work, a novel low-cost method of single nanochannel is presented based on the sacrificial electrospun polyethylene oxide (PEO) nanofiber as templates. Through this method, nanochannels of any diameter, length, and even any number of nanochan...

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Synthesis,Antidiabetic and Antitubercular Evaluation of Quinoline–pyrazolopyrimidine hybrids and Quinoline‐4‐Arylamines

von Nosipho Cele et al.

· 20.03.2024

This study involves a comparative antidiabetic evaluation, antioxidant and anti-tubercular evaluation of quinoline-pyrazopyrimidines and their simple quinoline-4-arylamine analogues. The incorporation of pyrazopyrimidine ring to quinoline generally ...

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Synthesis of Mono‐, Di‐, Tri‐, and Tetra‐cationic Pyridinium and Vinylpyridinium Modified [2.2]Paracyclophanes: Modular Receptors for Supramolecular Systems

von Yichuan Wang et al.

· 13.03.2024

Modular Scaffolds for Supramolecular Systems: In this report, a new series of mono-, di-, tri-, and tetra-cationic pyridinium and vinylpyridinium modified [2.2]paracyclophanes (PCPs) is described. On N-methylation, the 3D PCPs bearing (cationic) pyr...

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Cross‐linked Triblock Peptide Capsules as Potential Oxygen Carriers

von Huayang Feng et al.

· 13.03.2024

We report the synthesis of perfluorodecalin (PFD)-filled triblock peptide capsules. The capsules exhibit a suitable diameter, a certain mechanical strength, a large diffusion constant, fast gas exchange rates, and little cytotoxicity. Given the abov...

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Development and Characterization of Plant‐derived Aristatoside C and Davisianoside B Saponin‐loaded Phytosomes with Suppressed Hemolytic Activity

von Sebnem Ercelen et al.

· 11.03.2024

Phytosomal formulations of aristatoside C and davisianoside B compounds isolated from Cephalaria Aristata and Cephalaria davisina plants were prepared using the thin film hydration method. Physical characterization studies of the prepared phytosomal...

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A Computational Study of Photoinduced Borylation for Selected Boron Sources

von Ka Wa et al.

· 08.03.2024

The bis(catecholato)diboron(B₂cat₂) in dimethylacetamide (DMA) is popular boron source in photoinduced borylation. This article has studied the complex by DFT. It first compares the stoichiometry between the B₂cat₂ with 1 DMA and B₂cat₂ with 2 DMA. ...

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Triplet‐Singlet Emission of d‐Block Metal Complexes Characterized by Spin‐Orbit Natural Transition Orbitals

von A. Zaichenko et al.

· 05.03.2024

In the present study, the SO- NTO technique was applied to analyze triplet-to-singlet emission in a set of transition metal complexes with Mo, W, Re, and Ir. The source of intensity in the spin-orbit forbidden transitions has been demonstrated and d...

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Wearable Electrochemical Sensor for Sweat‐Based Potassium Ion and Glucose Detection in Exercise Health Monitoring

von Lei Ma et al.

· 05.03.2024

This study developed a wearable device to provide users with real-time insights into their physiological state during exercise. By collecting sweat and utilizing electrochemical techniques, it detects glucose and potassium levels and offers individu...

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Adjusting UV‐Vis Spectrum of Alizarin by Insertion of Auxochromes

von Zahra Noori et al.

· 05.03.2024

Adjusting UV-Vis Spectrum of Alizarin: Introduction of an electron-donor group causes the transition bands to be significantly red-shifted whereas electron-withdrawing groups cause a minor blue-shifting. Abstract First synthesized in 1868, alizari...

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First‐Principles Studies on Transition Metal Doped Mo2B2 as Anode Material for Li‐Ion Batteries

von Jianjian Shi et al.

· 05.03.2024

Few studies have investigated whether the electrochemical performance of Mo₂B₂ as an LIB anode material can be improved via doping to increase the charge-discharge rates. In this study, we successfully manipulated Mo₂B₂ as an LIB anode material via ...

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Effect of Co‐Surfactants on Properties and Bactericidal Activity of Cu2O and Hybrid Cu2O/Ag Particles

von Dam Xuan et al.

· 01.03.2024

This study focuses on a green synthesis of Cu₂O and Cu₂O−Ag particles using ascorbic acid (LAA) as a reducing agent in the presence of two surfactants, polyethylene glycol 6000 and sodium dodecyl sulfate. The hybrid materials exhibit strongly antiba...

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Electrochemical intercalation of anions into graphite: Fundamental aspects, material synthesis, and application to the cathode of dual‐ion batteries

von Yoshiaki Matsuo et al.

· 01.03.2024

This article first describes fundamental aspects of the electrochemical intercalation of anions into graphite. Then, the electrochemical preparation of covalent-type graphite intercalation comopouds, especially, graphite oxide and application of gra...

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Computational Design of Phosphotriesterase Improves V‐Agent Degradation Efficiency

von Jacob Kronenberg et al.

· 01.03.2024

Organophosphates (OPs) are potent neurotoxins whose current remedies are not very effective. Here we design and characterize variants of the enzyme phosphotriesterase, which can degrade OPs. We report mutations improving catalytic efficiency between...

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Studying the adsorption of emerging organic contaminants in zeolites with dispersion‐corrected density functional theory calculations: From numbers to recommendations

von Michael Fischer et al.

· 22.02.2024

The performance of 13 dispersion-corrected density functional theory methods is compared systematically for adsorption energy calculations of emerging organic contaminants in all-silica zeolites . While qualitative trends are similar, large differen...

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Ultraviolet Light‐Assisted Decontamination of Chemical Warfare Agent Simulant 2‐Chloroethyl Phenyl Sulfide on Metal‐Loaded TiO2/Ti Surfaces

von Hye Ji. et al.

· 20.02.2024

UV light emerges as a potent decontaminant for chemical warfare agents (CWAs). Utilizing TiO₂/Ti as a catalyst, this study investigates UV photocatalytic decontamination efficiency against 2-chloroethyl phenyl sulfide. Introduction of Au, Pt, and Cu...

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Electrocatalytic oxidation of pyrrole on a quasi‐reversible silver nanodumbbell particle surface for supramolecular porphyrin production

von Olayemi Jola et al.

· 14.02.2024

This work reports the synthesis of meso-tetrakis(4-hydroxyphenyl)porphyrin through condensation of an electrolyzed pyrrole solution with an acidified 4-hydroxybenzaldehyde at room temperature. It describes the use of silver nanodumbbell particles as...

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Dynamic control of circumrotation of a [2]catenane by acid‐base switching

von Kelun Shi et al.

· 09.02.2024

We reports a mechanical interlocking donor-acceptor [2]catenane, which is able to form varying degrees of self-complexed or decomplexed compounds that alter the cavity size of the crown ether and affecting the circumrotation behavior of CBPQT ⋅ 4PF₆...

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Electrochemical detection of miRNA using commercial and hand‐made screen‐printed electrodes: liquid biopsy for cancer management as case of study

von Ada Raucci et al.

· 09.02.2024

Screen-printed electrodes are able to offer potent tools for detecting miRNAs in liquid biopsy: commercial or handmade? Abstract The growth of liquid biopsy, i. e., the possibility of obtaining health information by analysing circulating species (...

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Synthesis of compounds based on the active domain of cabotegravir and their application in inhibiting tumor cells activity

von Ruyue Yang et al.

· 05.02.2024

The objective of this study was to assess the inhibitory effect of modified cabotegravir derivatives on the activity of esophageal cancer KYSE30 cells. Results showed that compounds 5b and 5h effectively inhibited the migration and invasion of KYSE3...

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Characterization of the Binding Properties of Ten Aptamers Using the Intrinsic Fluorescence of Oxytetracycline

von Yichen Zhao et al.

· 05.02.2024

Taking advantage of the intrinsic fluorescence of oxytetracycline, its binding to ten different DNA aptamers was characterized using fluorescence quantum yield, binding kinetics, fluorescence lifetime and calorimetry, offering insights into aptamer ...

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Synthesis of Silicon and Germanium Oxide Nanostructures via Photonic Curing; a Facile Approach to Scale Up Fabrication

von Najma Khatoon et al.

· 03.02.2024

Silicon oxide (SiO_x) and germanium oxide (GeO_x) nanoparticles are promising candidates for energy storage applications. We synthesized SiO_x and GeO_x nanostructures by employing photonic curing; a low-cost roll-to-roll instantaneous process. This wor...

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Direct Experimental Observation of the Tetrabromine Cluster Br4 by Synchrotron Photoionization Mass Spectrometry

von Rory McClish et al.

· 03.02.2024

Pure halogens clusters, especially with even numbered molecular formulae, are elusive gas-phase spectroscopic targets. Photoionization mass spectrometry coupled to tunable vacuum-ultraviolet synchrotron radiation allows for the detection and charact...

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Selective O‐Acylation of Enol Silyl Ethers with Acyl Fluorides Catalyzed by Fluoride Ions Derived from Potassium Fluoride and 18‐Crown‐6

von Norio Sakai et al.

· 30.01.2024

Fluoride ions derived from potassium fluoride and 18-crown-6 efficiently catalyzed the selective O-acylation of a variety of enol silyl ethers with aromatic and aliphatic acyl fluorides to produce unique enol ester derivatives. Abstract The fluori...

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Effect of Direct Alkyne Substitution on the Photophysical Properties of Two Novel Octasubstituted Zinc Phthalocyanines

von Hande Pekbelgin

· 27.01.2024

The synthesis and characterization of two new alkynyl-substituted phthalonitrile derivatives and their peripherally octasubstituted zinc phthalocyanine (ZnPc) compounds were reported. The aggregation behavior of phthalocyanines was investigated. Flu...

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Biosynthesis of ZnO, Bi2O3 and ZnO−Bi2O3 bimetallic nanoparticles and their cytotoxic and antibacterial effects

von Mina Sarani et al.

· 17.01.2024

In this work, attempted to arrange synthesized Bi₂O₃, ZnO, ZnO−Bi₂O₃ nanoparticles by Biebersteinia Multifida extract and then their cytotoxicity and anti-bacterial investigate. This is a report on the synthesis and anticancer performance of synthes...

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Computational Study of the Fries Rearrangement Catalyzed by Acyltransferase from Pseudomonas protegens

von Xiang Sheng et al.

· 15.01.2024

Density functional theory (DFT) calculations are employed to uncover the detailed reaction mechanism for the Fries rearrangement of 3-hydroxyphenyl acetate to 2′,4′-dihydroxyacetophenone catalyzed by the acyltransferase from Pseudomonas protegens (P...

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Decoration of 1,4,7,10‐tetraazacyclododecane‐1,4,7,10‐tetraacetic acid (DOTA) with N‐oxides increases the T1 relaxivity of Gd‐complexes

von Svenja Kerpa et al.

· 15.01.2024

Decoration with N -oxide groups is a valuable method to increase the T ₁-relaxivity of the well-known cyclic Gd-chelator DOTA. The synthesis of Gd-DOTA-NOx has been achieved via copper catalyzed alkyne azide cycloaddition. The complex is water ...

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Photoluminescence lifetime stability studies of β‐diketonate europium complexes based phenanthroline derivatives in poly(methyl methacrylate) films

von Othmane Essahili et al.

· 12.01.2024

This study contributes to a deeper understanding of the design and development of stable β-diketonate europium complexes based on phenanthroline ligands in PMMA films. The synthesis, characterization, thermal, and photoluminescence properties are pr...

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Ethylenediamine Salt Enhances the Solubility and Dissolution of Flurbiprofen

von Lei Gao et al.

· 12.01.2024

A novel flurbiprofen-ethylenediamine salt (FLU-EDA) was successfully prepared via solvent crystallization. Its crystal structure was determined via single-crystal X-ray diffraction (SXRD). Further, the physicochemical properties of FLU-EDA salt were...

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Preparation of green high‐performance biomass‐derived hard carbon materials from bamboo powder waste

von Tianqi Yin et al.

· 12.01.2024

This study used pre-treatment and template carbonization methods to extract a hard carbon material from a large amount of discarded biomass in bamboo powder waste. Template activation method produces rich and uniform pore structures that are benefic...

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Carbon Nanofibers‐Based Anodes for Potassium‐Ion Battery

von Chao Li et al.

· 11.01.2024

This article explores the key issues faced by carbon nanofibers (CNFs)-based materials and future development directions, and proposes improvement suggestions for providing new ideas for the development of CNFs-based materials. Abstract In recent ...

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Synthesis and properties of RNA constrained by a 2’‐O‐disulfide bridge

von Diallo Traoré et al.

· 10.01.2024

This work describes the synthesis and properties of oligoribonucleotides containing diethylene (DEE) and dipropylene (DPE) disulfide bridge between two adjacent uridines. Abstract We recently reported the properties of RNA hairpins constrained by ...

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Interaction of N2, O2 and H2 Molecules with Superalkalis

von Harshita Srivastava et al.

· 10.01.2024

N₂ (blue), O₂ (red) and H₂ (grey) interact differently with superalkali clusters. Their interaction varies from strong covalent to weak van der Waals interaction leading to the possibility of reduction or adsorption of these small molecules. Abstr...

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Green Synthesis of Copper Nanoparticles Using Sargassum spp. for Electrochemical Reduction of CO2

von Sandra Jazmín et al.

· 10.01.2024

CuNPs were synthesized using a cost-effective and environmentally friendly extract applying Sargassum spp. as versatile reducing agent. In this study, CuNPs with nanoflower morphology were synthesized. The experimental characterizations (XRD, SEM, a...

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Analysis of Photocatalytic Degradation of Phenol by Zinc Oxide Using Response Surface Methodology

von Meliha Seloglu et al.

· 09.01.2024

Phenol and phenolic compounds pose a serious threat to the ecosystem, human health, and water resources. Photocatalytic degradation is the most suitable technique for removing organic pollutants from wastewater, and ZnO is an effective photocatalyst...

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Cinchona‐Based Hydrogen‐Bond Donor Organocatalyst Metal Complexes: Asymmetric Catalysis and Structure Determination

von Sándor Nagy et al.

· 08.01.2024

Three different cinchona-based organocatalysts containing different hydrogen-bond donor moieties worked together with inorganic transition metal salts to catalyze pharmaceutically relevant asymmetric reactions. They were also studied experimentally ...

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Design of Promising Uranyl(VI) Complexes Thin Films with Potential Applications in Molecular Electronics

von César Raúl et al.

· 05.01.2024

Oxo uranyl(VI) complexes were successfully synthesized, characterized and deposited by thermal evaporation and optical and electrical features of films were examined. The bandgap for the films is in the Interval of 2.39 and 2.79 eV and the films pre...

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Photocatalytic Degradation of Malachite Green by Titanium Dioxide/Covalent Organic Framework Composite: Characterization, Performance and Mechanism

von Dongmei Yao et al.

· 05.01.2024

In this paper, a titanium dioxide/covalent organic framework (TiO₂/COF) composite was prepared and its photocatalytic removal of dye was investigated. Using tetrabutyl titanate as a titanium source, TiO₂ nanomaterial was prepared by sol-gel method. ...

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CYTOP® 366: A Tertiary Phosphine Inaccessible by Most Traditional Hydrophosphination Methods

von Dino Amoroso et al.

· 03.01.2024

Traditional radical-catalyzed methods to prepare alkylphosphines are not suitable for the target molecule, tricyclohexylphosphine, otherwise known as CYTOP® 366. Through computational study, we explore why this tertiary phosphine is inaccessible via...

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Unraveling Reactivity Pathways: Dihydrogen Activation and Hydrogenation of Multiple Bonds by Pyramidalized Boron‐Based Frustrated Lewis Pairs

von Himangshu Mondal et al.

· 20.12.2023

A DFT-based study explores the H₂ activation by pyramidalized boron-based B/E-FLP (E=N, P, As, Sb and Bi, etc.) systems. The study also highlights the hydrogenation process of multiple bonds with the help of B/N-FLP. Abstract The activation of H₂ ...

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Enhanced Photocatalytic H2 Generation by Light‐Induced Carbon Modification of TiO2 Nanotubes

von Amara Nasir et al.

· 13.12.2023

A closer examination of the role and impact of carbon within TiO₂ nanotubes on H₂ evolution and photoelectrochemical performance was carried out. Carbon is inherently present in nanotubes as remnant organic electrolyte used in the anodization proces...

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In situ Investigations of the Formation Mechanism of Metastable γ‐BiPd Nanoparticles in Polyol Reductions

von Matthias Smuda et al.

· 13.12.2023

The formation of γ-BiPd in a polyol process has been monitored by X-ray powder diffraction, light scattering, and in situ measurements of redox potential and pH value. Palladium nanoparticles are formed as primary reaction product followed by a succ...

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Secondary 3‐Chloropiperidines: Powerful Alkylating Agents

von Mats Georg et al.

· 13.12.2023

The synthesis of secondary 3-chloropiperidines and highly strained bicyclic aziridines is reported, including a new method for the selective mono-chlorination of unsaturated primary amines. The novel compounds, which closely resemble natural alkylat...

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Hydrogen Production via Methane Decomposition over Alumina Doped with Titanium Oxide‐Supported Iron Catalyst for Various Calcination Temperatures

von Hamid Ahmed et al.

· 12.12.2023

Iron metal was used for hydrogen production via methane decomposition using alumina as support; furthermore, to overcome the drawback of alumina, titanium dioxide was added at 20 %, considering various calcination temperatures. The results show that...

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Identifying Phosphodiesterase‐5 Inhibitors with Drug Repurposing Approach: Implications in Vasodysfunctional Disorders

von Mohd Shahnawaz et al.

· 07.12.2023

Phosphodiesterase type 5 plays a crucial role in regulating key signaling molecules involved in various physiological processes. This study combines virtual screening and molecular dynamics simulations to investigate the repurposing of FDA-approved ...

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Surface Modification of Lignite with Alkyl and Mixed Alkyl‐Aryl Films Generated from an Aryl Diazonium Salt and Alkyl Halides: Experimental Results and Theoretical Analyses

von Msc. Gentiana et al.

· 05.12.2023

The surface of lignite has been modified with alkylcarboxylic moieties derived from alkyl halides by diverting the reactivity of the sterically hindered aryl radical obtained by reduction of the 2,6-dimethylbenzene diazonium tetrafluoroborate after ...

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H2Open – Guest Editorial

von Mihail Barboiu et al.

· 06.06.2023

H₂Open is a special collection of research articles and reviews focused on the multifaceted chemistry of water from different scientific vantage points. Guest editors Mihail Barboiu, Barbara Kirchner, Eva Perlt and Alessandro Scarso give an overview...