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Direct air capture (DAC) is a sustainable technology to alleviate the greenhouse effect and a reliable pathway to acquire inexhaustible CO2 for the production of costly chemicals and energy products. Current DAC technologies with amine‐related sorbents rely on chemisorption, while they consume intensive energy for CO2 release and sorbent regeneration by heating. Developing new DAC processes with weak, reversible adsorption can substantially reduce the regeneration energies. Herein, the design of CO2 breathing paper (CBP) is demonstrated toward spontaneous CO2 extraction from ambient air and solar‐driven regeneration. The CBP is fabricated by coupling 2‐ethyl‐4‐methylimidazole to carbon nanotube paper on the basis of density functional theory calculations. At ambient conditions, CBP spontaneously captures atmospheric CO2 with a capacity of 0.14–1.75 mmol g–1 at 0–35 °C through non‐covalent electrostatic interaction. Upon exposure to sunlight, all adsorbed CO2 can be released and converted to concentrated gas for storage. Attractively, the efficiency of solar‐driven CO2 release is much higher than the traditional temperature‐swing method owing to the IR sensitivity of CO2. Besides the reversibility, the mild conditions also ensure the durability of CBP. These findings suggest that the CBP is a promising candidate for cost‐effective DAC. [ABSTRACT FROM AUTHOR]

Molecules that have an imidazole ring in their structure show different biological effects, the most important of which are antifungal, antibacterial, and medical properties. In this paper, we reported that copper (I) iodide supported on the surface of magnetic Fe3O4 nanoparticles modified with 3,4-diaminobenzoic acid [Fe3O4@Diamine-CuI] is a new, recoverable, and highly efficient nanocatalyst for the preparation of 2,4,5-trisubstituted imidazoles through the one-pot three-component reaction of aromatic aldehydes with benzil and ammonium acetate as the nitrogen source at refluxing water. The structure of the as-constructed Fe3O4@Diamine-CuI nanomaterial is well characterized by FT-IR spectroscopy, SEM, EDX, TEM, XRD, VSM, EDX elemental mapping, and ICP-OES techniques. It is worth mentioning that the Fe3O4@Diamine-CuI nanocatalyst was easily separated from the reaction medium using a magnetic magnet and could be reused for 8 times without reducing its catalytic activity. The advantages of this catalytic system include ecofriendly conditions, easy separation of the catalyst, ability to recycle the catalyst, low cost, very short reaction time, water as the solvent, and simple purification of the products. [ABSTRACT FROM AUTHOR]

• Preparation of diverse DATNBI crystal structures through molecular self-assembly. • Introducing crystal defects to enhance the light absorption performance of DATNBI. • The self-sustaining combustion of DATNBI without photosensitizer under NIR laser is achieved. • The electron-hole recombination in the defect state is induced by laser radiation to enhance photothermal conversion. Although laser ignition is considered to be one of the most promising ways to detonate energetic materials due to its high safety and reliability, it is still a challenge to achieve direct ignition of energetic materials by a laser with low-power and near-infrared (NIR) band. In this paper, a molecular self-assembly strategy based on recrystallization was utilized to prepare 4,4′,5,5′-tetranitro-1H,1′H-[2,2′-biimidazole]-1,1′-diamine (DATNBI) crystals with various micro-nano structures. The characterization results suggest that DATNBI crystals with different degrees of roughness and defects by the induction of solvents and surfactants. The crystal defects can not only bring about the enhancement of light absorption of DATNBI in NIR band, but also advance its thermal decomposition, providing reliable support for direct laser ignition of DATNBI profit from the hot spot ignition theory. Combined with density functional theory, it is speculated that electrons of defect states achieve electron-hole recombination by laser radiation, thereby enhancing photothermal conversion. Compared with raw DATNBI, DATNBI crystals with rough surface and abundant defects can be directly ignited by a NIR laser and exhibits self-sustainable combustion. In summary, a direct NIR laser-ignitable energetic material has been prepared via appropriate crystal structure design. [ABSTRACT FROM AUTHOR]

• Three imidazole- and C18- bifunctional silica stationary phases (Sil-Im-C18) were prepared. • Chromatographic performance can be adjusted by the control of different co-grafting amounts of C18 chain and imidazole group. • The prepared stationary phases can be used in reversed-phase liquid chromatography (RPLC) and ion exchange chromatography (IEC). • Excellent separation performance for PAHs, phenylesters, phenylamines, phenols and inorganic anions was obtained. • Nucleobases and nucleosides can be separated using pure water as mobile phases. In this paper, three imidazole- and C18- bifunctional silica stationary phases (Sil-Im-C18) were prepared by adjusting introduction interval of octadecyltrichlorosilane (ODS) and 3-imidazol-1-ylpropyl(trimethoxy)silane (TMPImS), which can be used for reversed-phase liquid chromatography (RPLC) and ion exchange chromatography (IEC) with adjustable performance. The successful preparation of Sil-Im-C18 were confirmed by the characterizations of elemental analysis, infrared spectroscopy (FTIR) and contact angle (CA). Chromatographic performance of Sil-Im-C18 were evaluated by the separation of Tanaka test mixture, alkylbenzenes, linear PAHs and a set of analytes with different properties (uracil, phenol, 1,2-dinitrobenzene and naphthalene), and compared with commonly used C18 column. It was found that the chromatographic performance of Sil-Im-C18 changed significantly with the difference in bonding amount of imidazole and C18. Sil-Im-C18 demonstrated the excellent separation performance towards polycyclic aromatic hydrocarbons (PAHs), phenylesters, phenylamines, phenols and inorganic anions, and notably, nucleobases and nucleosides can be separated using pure water as mobile phases. The van Deemter plot showed that the column efficiency of Sil-Im-C18-3 was 64,933 plate· m −1 for naphthalene, indicated that Sil-Im-C18 was reasonably chromatographic columns. The RSD values of retention time were 0.22 %-0.61 % for 10 needles alkylbenzenes injected continuously at 50 °C to investigate thermal stability and repeatability, all the fluctuations of k of naphthalene were less than 2.3 % for Sil-Im-C18-1 during flushing 24 h with the mobile phase at different pH values (pH = 3 and 8), the retention time of alkylbenzenes were almost same for Sil-Im-C18-1 at different time, the RSD values of retention time of alkylbenzenes were 0.45 %-2.28 % for two batches Sil-Im-C18-1, revealing the excellent repeatability, thermal stability, durability and reproducibility of Sil-Im-C18, and implying a commercial prospect. [ABSTRACT FROM AUTHOR]

• Intercalation of ZnIm provides high water stability to GO membranes. • Surface charge governed ion transport of GO-ZnIm membrane. • High cation K+ selectivity (0.74) of GO-ZnIm membrane. • High output experimental power density of ∼ 11 Wm−2 of GO-ZnIm membrane at 1000 concentration gradient. Generating electricity from seawater by utilizing nanofluidic structures is an appealing strategy for achieving zero-emission energy goals. A nanofluidic channel that is atomically small, tunable, and mechanically stable is the key to solving this problem. In this paper, for the first time, we report the construction of centimeter-sized freestanding zinc-imidazole complex (ZnIm) intercalated graphene oxide (GO) membrane (GO-ZnIm) having uniform 2D nanofluidic channels with interlayer spacing of 9 Å. The pristine GO membrane rapidly disintegrates in an aqueous medium due to membrane swelling; however, treatment with an aqueous zeolitic imidazole framework (ZIF-8) suspension, rendering ZnIm complex, provides long-term stability by restricting the excessive interlayer separation of GO sheets. From ion transport, diffusion, and variable load studies, it is observed that, besides stabilizing the GO membrane, intercalation of ZnIm significantly improves average cation selectivity (from 0.46 for GO to 0.74 for GO-ZnIm , measured up to 1000 concentration gradient) and experimental power density (from 1.7 Wm−2 for GO to 10.8 Wm−2 for GO-ZnIm , at 1000 concentration gradient). Moreover, the practical applicability of the GO-ZnIm membrane has also been investigated under artificial estuary conditions at ambient temperature, rendering an osmotic power density of 4.5 Wm−2, which is very close to the commercial benchmark of 5 Wm−2. A mechanically robust and flexible membrane made up of cost-effective components (GO and ZnIm), able to deliver an osmotic power density close to commercial benchmark at ambient temperature is the main highlight of the present GO-ZnIm membrane, which can be a promising candidate for applications such as separation, desalination, and blue energy harvesting. [ABSTRACT FROM AUTHOR]

[Display omitted] • The receptor CS-02 has been synthesized via simple Schiff's base reaction and specifically used for the detection of CN− ion. • The interaction ability of CS-02 towards CN− ion detection was found from Job's method (1:1, L:M) and Limit of detection is 10.39 × 10−5 M respectively. • Practical utility of CS-02 for specific detection of CN− was examined with different real samples and test kit. In the present work, a simple and highly selective colorimetric chemosensor (CS-02) , was designed and synthesized from 5(4) - amino-4(5) -(amino carbonyl)-imidazole hydrochloride and 5-(4-chloro phenyl) furan-2-carbaldehyde. The formation of the CS-02 (E)-5-amino-N-((5-(4-chlorophenyl) furan-2-yl) methylene)-1H-imidazole-4-carboxamide was confirmed by 1HNMR and Mass spectral techniques. The receptor CS-02 was found to show a colorimetric response of the colour change from Light yellow to Cyber yellow towards CN− ion, due to de-protonation and intra-ligand charge transfer. The receptor CS-02 interacts with cyanide in a 1:1 stoichiometric manner with a detection limit of 10.39 × 10−5 M. Receptor CS-02 could be recyclable by treatment with TFA. The sensing behaviour of the receptor was further enunciated by computational studies and it's also be efficiently used to detect trace amounts of cyanide present in Real samples such as tobacco, flax seeds, apple seeds, cigarette and Indian cigarette. Moreover, a visible colorimetric kit such as a test paper strip would be used in the CS-02 for practical applications. [ABSTRACT FROM AUTHOR]

Synthetic cannabinoids (SCs) are a broad class of illicit drugs that are classified according to the chemical structure of the aromatic core that they present (i.e., indole, imidazole, pyrrole) and their detection is still a challenge, despite their widespread diffusion. The identification of a specific class of SC in complex matrices, such as real samples with a rapid, economic analytical device useable directly in the field, is highly desirable, as it can provide immediate and reliable information that eventually addresses more targeted analyses. The present paper proposes a Molecularly Imprinted Polymer (MIP)-based voltammetric sensor for the rapid and selective detection of indazole-type SCs. In this context, a polyacrylate-based MIP was used to functionalize a Pt electrode. The MIP composition was optimized through a Design of Experiments approach, and for the sake of safety, a non-psychotropic compound structurally related to the selected SCs was employed as the template in the MIP formulation. A complete characterization of the electrochemical behavior of the selected SCs was performed, and differential pulse voltammetry (DPV) in acetonitrile/lithium perchlorate 0.1 M was the technique applied for their quantification. LOD around 0.01 mM and linearity up to 0.8 mM were found. Comparison with the non-imprinted (NIP) modified and bare electrodes showed better selectivity and reproducibility of the MIP-based sensor. Recovery tests (in the 70–115 % range) were performed on simulated pills and smoking mixtures to test the reliability of the proposed method. The method proposed allows the identification and quantification of indazole-based SCs as a class in complex matrices. Due to the selectivity of the obtained device, no clean-up of the sample before analyses is needed. For the same reason, the interference of cutting substances and natural cannabinoids was negligible. [Display omitted] • MIP-modified voltammetric sensor for detecting synthetic cannabinoids. • Complete electrochemical characterization of the oxidation pathway of the selected cannabinoids. • Optimization of the electrode modification by Design of Experiments (DoE). • Differential pulse voltammetry (DPV) is used to quantify SCs in street preparations. [ABSTRACT FROM AUTHOR]

The research in the paper focused in the development of ecologically favorable inhibitor via microwave method. The inhibitor namely N-(2-(2-pentadecyl-2,5-dihydro-1H-imidazole-1-yl)ethyl)palmitamide palmitate, a derivative of imidazole (IPP) was synthesized in one single step and screened its inhibitive property in strongly acidic medium (15 % HCl) for protection of Q235 steel at 1500 rpm rotational speed. The study used for exploring the inhibition effect of IPP includes weight loss, Potentiodynamic polarization, and electrochemical impedance spectroscopy. The estimated results confirmed the inhibition data of 97.41 % and 98.70 % at 308K with 200 mg/L/only IPP and IPP + KI/150 mg/L+0.5 mM respectively, and the influence of temperature has little effect over the inhibition property. The weight loss results show that the IPP belongs to a mixed-type corrosion inhibitor. The SEM, EDX, AFM, SKP, and contact angle analysis results showed that the IPP formed a film on the surface of Q235 steel through adsorption, which changed the hydrophilic and hydrophobic properties of the Q235 steel surface. Further XPS study confirmed the adsorption of IPP molecules over the Q235 steel surface. [Display omitted] • IPP mitigate the corrosion of Q235 steel in 15 % HCl. • Green method was employed to synthesize IPP in one single step. • Maximum performance is 97.41 % and 98.70 % with IPP and IPP + KI respectively. • Contact angle supports the generation of hydrophobic film of IPP. • SEM, AFM, EDX, SKP, and XPS confirmed adsorptive layer of IPP. [ABSTRACT FROM AUTHOR]

• A three-dimensional crystal synthesized by carboxylic acid ligand and nitrogen-containing ligand. • The selective detection for Fe3+, Cr6+ and nitroimidazole antibiotics species in aqueous solution were investigated. • The quenching mechanism of the selective detection including theoretical calculation was presented. A novel complex of [Zn(L)(HEA)] n (1) has been successfully synthesized by hydrothermal method based on the double ligands of H 2 HEA (H 2 HEA = 1,2-Phenylenediacetic acid) and L (L = 1,1′-((2,4,6-trimethyl-1,3-phenylene)bis(methylene))bis(1H-1,2,4-triazole)). The single crystal structure of the complex was analyzed by X-ray single crystal diffraction, indicating that complex 1 was stacked into a 3D crystal structure through intermolecular π···π and C-H···π weak interaction. The complex was characterized by elemental analysis, infrared spectroscopy, PXRD and TGA. Additionally, fluorescence experiments showed that complex 1 could be used as a fluorescent probe for detecting Fe(III), Cr(VI), and Metronidazole (MDZ), Ornidazole (ODZ), Dimetridazole (DTZ) in aqueous solutions. Detection limits were obtained for ions (3.2×10−7 M for Cr 2 O 7 2−, 5.4×10−7 M for CrO 4 2− and 3.6 × 10−7 M for Fe3+) and nitroimidazole antibiotics (1.3×10−7 M for MDZ, 9.7×10−8 M for ODZ and 4.4×10−8 M for DTZ). The possible fluorescence quenching mechanism has been studied in the paper. One novel complex, namely, [Zn(L)(HEA)] n (1) (L = 1,1′-((2,4,6-trimethyl-1,3-phenylene)bis(methylene))bis(1H-1,2,4-triazole), H 2 HEA = 1,2-phenylenediacetic acid) was synthesized. The oxygen-containing chain in complex 1 extends in a zigzag shape along the a -axis, while the nitrogen-containing chain extends in a W-shape along the b -axis, a 2D planar structure was obtained in the ab plane. Through the formation of π···π (Cg (2)···Cg (2)) and C-H ··π (C5-H5···Cg2) interactions between the 2D layers, the 3D supermolecule structure of 1 was formed along the c -axis. [Display omitted] [ABSTRACT FROM AUTHOR]

In this article, we reported a new poly(diacetylenes)-based sensor (PDA-IBA) for silver ion detection and reduction through the chelation of imidazole moiety. The poly(diacetylenes) polymer functionalized with imidazole groups. As the concentration of silver ions in the solution increased, the PDA surface underwent oxidation concurrently with the reduction of silver ions was demonstrated through imidazole receptor. This chemical reaction resulted in a noticeable change in the color of the solution, shifting from blue to dark red. The limit of detection (LOD) was determined to be 0.034 mM. Zeta potential data analysis and electrochemical measurements further confirmed the PDA-IBA was capable to reduce Ag+ into Ag0. Moreover, the silver species produced were validated through inductively coupled plasma optical emission spectrometry (ICP-OES). Additionally, the color change observed in PDA-IBA as a response to silver ions was effectively demonstrated by integrating it into a paper-based sensor. This study introduces an innovative and promising approach for enhancing the capabilities of chemosensors in detecting and reducing Ag+. [Display omitted] • A highly sensitive and selective Ag + sensor, poly(diacetylenes)-based chemosensor PDA-IBA was synthesized. • The PDA-IBA polymer displayed a color change in the presence of Ag + through a chemical reduction process. • The silver ion's reduction was demonstrated by zeta potential data analysis and ICP-OES. [ABSTRACT FROM AUTHOR]

[Display omitted] • The bicyclic α-iminophosphonates showed high synthetic possibilities. • Imidazoline I 2 receptors are promising therapeutic targets in neurodegeneration. • (Octahydropyrrolo[3,4- c ]pyrrol-1-yl)phosphonates show affinity/selectivity for imidazoline I 2 receptors. • This is the first time, we showed cognitive improvement in C. elegans after I 2 -IR ligands treatment. Recent studies pointed out the modulation of imidazoline I 2 receptors (I 2 -IR) by selective ligands as a putative strategy to face neurodegenerative diseases. Foregoing the classical 2-imidazoline/imidazole-containing I 2 -IR ligands, we report a family of bicyclic α-iminophosphonates endowed with high affinity and selectivity upon I 2 -IR and we advanced a representative compound B06 in preclinical phases. In this paper, we describe the synthetic possibilities of bicyclic α-iminophosphonates by exploring its ambivalent reactivity, leading to unprecedented molecules that showed promising activities as I 2 -IR ligands in human brain tissues and good BBB permeation capabilities. After in silico ADME prediction studies, we assessed the neuroprotective properties of selected compounds and beneficial effect in an in vitro model of Alzheimeŕs and Parkinson's disease. Along with their neuroprotective effect, compounds showed a potent anti-inflammatory response when evaluated in a neuroinflammation cellular model. Moreover, this is the first time that the neuroprotective effects of imidazoline I 2 -IR ligands in a transgenic Alzheimer's disease Caenorhabditis elegans strain are investigated. Using a thrashing assay, we found a significant cognition improvement in this in vivo model after treatment with the new bicyclic α-phosphoprolines. Therefore, our results confirmed the need of exploring structurally new I 2 -IR ligands and their potential for therapeutic strategies in neurodegeneration. [ABSTRACT FROM AUTHOR]