Inorganic Chemistry Communications最新文献

{"title":"Impact of copper(II) complexes on increase in lifespan and mean survival of gld-1 mutant strain JK1466 in Caenorhabditis elegans","authors":"Rathinasabapathi Prabhakaran ,&nbsp;Sunder Nandhini ,&nbsp;Chennakrishnan Elamathi ,&nbsp;Govindan Thiruppathi ,&nbsp;Horst Puschmann ,&nbsp;Palanisamy Sundararaj","doi":"10.1016/j.inoche.2026.116238","DOIUrl":"10.1016/j.inoche.2026.116238","url":null,"abstract":"<div><div>Square planar copper(II) complexes containing 7-methyl-2-oxo-1,2-dihydroquinoline-3-carboxaldehyde thiosemicarbazones were synthesized and structurally characterized by using various spectro-analytical techniques. Single crystal X-ray diffraction analysis of complexes P1 and P3 confirmed the mode of attachment of ligands. The binding affinity of the ligands and complexes with nucleic acid and albumin were studied by taking CT-DNA and BSA as models. The new complexes were subjected to screen their in vivo cytotoxic potential by taking <em>C. elegans</em> as suitable choice due to their sequenced genome and easy mutation production. Exposure of the complexes <strong>P1-P4</strong> to the worms, up to 75 μM concentration it was found that there were no adverse effect in the physiological functions. Furthermore, the reduction in the tumor growth was confirmed by the DAPI/AO staining and the lifespan of gld-1 mutant strain JK1466 has been increased significantly with a mean survival increase of 66.4%. The stress tolerance or longevity was directly related to the anti-oxidant enzymes which can be quantified by GFP reporter strains. Under oxidative stress, as compared with the control, the relative mean fluorescence intensity of mutant worms was increased around 70–72% and 60–64% in <em>sod-3</em> and <em>hsp-16.2</em> expressions respectively. Interestingly, all the complexes <strong>P1-P4</strong> have shown their potent effect on cytotoxic properties, physiological changes and also reduction in the tumor growth and there were no significant differences in their activity were found. Altogether, the research findings recommended that the candidature of the complexes <strong>P1</strong>-<strong>P4</strong> to use as anti-tumor drugs based on further explorations.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116238"},"PeriodicalIF":5.4,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic behavior, spin transitions, and magnetocaloric effect in europium orthoferrite EuFeO₃ nanoparticles synthesized by solid-state reaction","authors":"Y. Errouyessi ,&nbsp;H. Lassri ,&nbsp;S. Colis ,&nbsp;R. Moubah","doi":"10.1016/j.inoche.2026.116224","DOIUrl":"10.1016/j.inoche.2026.116224","url":null,"abstract":"<div><div>We present a comprehensive investigation of the structural, magnetic and magnetocaloric properties of europium orthoferrite <span><math><mtext>EuFe</mtext><msub><mi>O</mi><mn>3</mn></msub></math></span> nanoparticles. X-ray diffraction analysis confirms that the compound crystallizes in a single-phase orthorhombic perovskite structure belonging to the <em>Pbnm</em> space group. The sample exhibits an average crystallite size of 43.6 nm. Europium orthoferrite exhibits an antiferromagnetic ordering of Fe³⁺ spins, accompanied by a weak ferromagnetic component induced by the Dzyaloshinskii–Moriya (DM) interaction. Such an interaction induces a slight deviation from the ideal antiparallel alignment of magnetic moments within the antiferromagnetic sublattices, giving rise to a spin-flop transition (SFT) and a small residual ferromagnetic moment. Special attention has been devoted to the spin-reorientation (SR) transitions, analyzed through the magnetocaloric effect (MCE) as a highly sensitive probe. The temperature evolution of the magnetic entropy change <span><math><mo>−</mo><mo>∆</mo><msub><mi>S</mi><mi>M</mi></msub></math></span> exhibits positive maximum values corresponding to a normal MCE near the two SR temperatures, <span><math><msub><mi>T</mi><mrow><mi>SR</mi><mn>1</mn></mrow></msub><mo>=</mo><mn>30</mn><mi>K</mi></math></span> and <span><math><mspace></mspace><msub><mi>T</mi><mrow><mi>SR</mi><mn>2</mn></mrow></msub><mo>=</mo><mn>180</mn><mi>K</mi></math></span>, whereas a negative MCE (negative <span><math><mo>−</mo><mo>∆</mo><msub><mi>S</mi><mi>M</mi></msub></math></span> values) emerges around <em>T</em> = 60 K. Such findings confirm the occurrence of a SR transition with a metamagnetic signature, emphasizing the complex magnetic nature inherent in this orthoferrite system. Analyses of the temperature dependence of the critical exponent <span><math><mi>n</mi><mfenced><mi>T</mi></mfenced></math></span> under various applied magnetic fields further validates the observed transitions and provides deep insight into their intrinsic nature. Moreover, the construction of a universal phenomenological curve, achieved by normalizing each isofield <span><math><mo>−</mo><mo>∆</mo><msub><mi>S</mi><mi>M</mi></msub><mfenced><mi>T</mi></mfenced></math></span> curve, offers additional confirmation of the type and order of these magnetic transitions. Overall, these results highlight the important role of the Dzyaloshinskii–Moriya interaction in stabilizing weak ferromagnetism in <span><math><mtext>EuFe</mtext><msub><mi>O</mi><mn>3</mn></msub></math></span>, while demonstrating the reliability and sensitivity of the magnetocaloric approach as a powerful method for probing subtle SR and metamagnetic phenomena in rare-earth orthoferrites.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116224"},"PeriodicalIF":5.4,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pt(II)-Cu(I) and Au(I)-Cu(I) complexes based on a bis(1,10-phenanthrolin-2-yl)phosphine: synthesis, near-IR luminescence and cytotoxic activity","authors":"Andrey Yu. Baranov ,&nbsp;Lyubov S. Klyushova ,&nbsp;Evgeny Kh. Sadykov ,&nbsp;Vasily N. Yudin ,&nbsp;Alexander V. Artem'ev","doi":"10.1016/j.inoche.2026.116233","DOIUrl":"10.1016/j.inoche.2026.116233","url":null,"abstract":"<div><div>The novel trimetal-binding <em>P</em>(<em>N</em>,<em>N′</em>)₂-ligand bis(1,10-phenanthrolin-2-yl)phenylphosphine (L) has been synthesized and used to assemble near-infrared (NIR) emissive complexes. Reactions of <strong>L</strong> with either [Pt(<em>cod</em>)Cl₂]/Cu⁺ or [Au(<em>tht</em>)Cl]/Cu⁺ systems selectively yielded the trinuclear complexes [PtCu₂Cl₂L₂]²⁺ and [Au₂Cu₂Cl₂L₂]²⁺, isolated as their PF₆⁻ salts. Structural analysis confirms that the Pt^II and Au^I centers are P-coordinated, while each Cu^I ion is chelated by a pair of phenanthroline arms. At 298 K, the Pt(II)-Cu(I) and Au(I)-Cu(I) complexes exhibit NIR luminescence with maxima at 820 and 810 nm, respectively, which is attributed to triplet (metals and halogen)-to-ligand charge transfer ³(M+M′+X)LCT character based on theoretical calculations. Notably, the Au(I)-Cu(I) complex demonstrated cytotoxicity against tumor MCF-7 cell line, with LC₅₀ values of 16.6 ± 0.7 μM, approximately twice the potency of cisplatin.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116233"},"PeriodicalIF":5.4,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial electric field-driven S-scheme photocatalysis in CdO/g-C3N4 for enhanced charge separation and pollutant degradation","authors":"Sami A. Al-Hussain ,&nbsp;Ashraf A. Mohamed ,&nbsp;Arafat Toghan ,&nbsp;Mohamed A. Ahmed ,&nbsp;Mohamed Farag ,&nbsp;Hoda A. Ahmed ,&nbsp;Moayad M. Khashoqji ,&nbsp;Mahmoud Adel","doi":"10.1016/j.inoche.2026.116232","DOIUrl":"10.1016/j.inoche.2026.116232","url":null,"abstract":"<div><div>This work presents the rational design of a direct S-scheme heterojunction, fabricated by ultrasonically decorating exfoliated g-C₃N₄ nanosheets with CdO nanoparticles. Comprehensive characterization (XRD, TEM, FTIR, XPS) verified the successful synthesis, controlled CdO crystallite size, and the critical formation of intimate interfacial Cd<img>N bonds. The composite's performance is significantly amplified by synergistic adsorption mechanisms, including π–π stacking H-bonding, coordinate bonding, and electrostatic interactions, which preconcentrate pollutant molecules at the active sites to directly facilitate the subsequent degradation. The optimized photocatalyst exhibits dramatically boosted performance, achieving a pseudo-first-order rate constant of 0.0181 min⁻¹ for tetracycline (TC) degradation, which is 4.2 times greater than that of pristine g-C₃N₄. Crucially, it demonstrates robust practical utility by effectively degrading TC in the presence of common aquatic interferents, such as inorganic ions and humic acid; its efficacy is further amplified by the synergistic addition of H₂O₂ as an electron scavenger. A concerted mechanistic investigation provides definitive evidence for the S-scheme pathway: Mott–Schottky and DRS analyses established the requisite band alignment, while XPS revealed a negative binding energy shift in g-C₃N₄, directly proving electron transfer and the creation of an internal electric field (IEF). Consequently, photoelectrochemical and photoluminescence studies demonstrated profoundly enhanced charge separation efficiency and near-complete quenching of radiative recombination. Radical trapping experiments identified •O₂⁻ as the primary active species, validating the proposed S-scheme charge transfer mechanism.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116232"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The markedly enhanced elimination of tetracycline over a novel mesoporous AgVO3/BaTiO3 piezo-photocatalyst with S-scheme heterojunction and visible light-induced performance","authors":"Hind Alshaikh ,&nbsp;Tamer M. Khedr","doi":"10.1016/j.inoche.2026.116231","DOIUrl":"10.1016/j.inoche.2026.116231","url":null,"abstract":"<div><div>The main challenge for decomposition and removing water contaminants using semiconductor-based photocatalysis is the efficient separation of charge carriers. In this research contribution, we rationally developed a dual piezoelectric-semiconducting heterostructure photocatalyst, composed of a mesoporous step-scheme (S-scheme) of AgVO₃/BaTiO₃, to synergistically promote charge carrier separation and kinetic rates for the highly efficient elimination of tetracycline by synergistic impacts under stirring and visible light exposure. The optical absorption examinations demonstrated that the AgVO₃/BaTiO₃ composites unveiled outstanding abilities to absorb and utilize light energy in the region of the visible spectrum. Additionally, PL and photocurrent evaluations verified that the AgVO₃/BaTiO₃ hybrids had the best capacities to spatially separate the charge carriers. The alteration in binding energy values within the AgVO₃/BaTiO₃ compared to pure samples additionally endorsed the directional flow of electrons from BaTiO₃ to AgVO₃ whenever there was no illumination, which implied that charges move in response to the S-scheme model when subjected to irradiation. Responding to the decomposition evaluations, the piezo-photocatalytic capacity was substantially enhanced by the most appropriate concentration of AgVO₃ (15 wt%). This implies that sewage treatment might benefit from these heterostructures. After only 60 min of encountering visible illumination and stirring, tetracycline was entirely (100%) degraded over the 15 wt% AgVO₃/BaTiO₃ hybrid. This proceeded at an overall degradation rate of 2.4872 μmol min⁻¹, which was 39.2-fold more efficient than the degradation rate achieved by pure BaTiO₃ (0.0635 μmol min⁻¹). Meanwhile, the 15 wt% AgVO₃/BaTiO₃ hybrid showcased superb stability and durability, signifying that this heterostructure material might be utilized over and over and endure for an extended duration. The simultaneous impact of the stir-generated piezoelectric field and the interfacial electric field substantially enhanced the charges' spatial separation and directional flux of the charges, which efficiently degraded and eliminated tetracycline. The research presented here shares crucial understandings and perspectives concerning the feasible design of innovative heterostructures with superior piezo-photocatalytic functionality to sustainably alleviate water contamination issues.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116231"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iron oxide/magnesium oxide nanocmoposite as new superhydrophobic paper surface and antibacterial activity","authors":"Sabah H. Jumaah,&nbsp;Raad S. Sabry,&nbsp;Wisam J. Aziz,&nbsp;Muslim A. Abid,&nbsp;Duha A. Kadhim","doi":"10.1016/j.inoche.2026.116216","DOIUrl":"10.1016/j.inoche.2026.116216","url":null,"abstract":"<div><div>In this study, alpha iron oxide nanoparticles (α-Fe₂O₃ NPs), magnesium oxide nanoparticles (MgO NPs), and iron oxide/magnesium oxide nanocomposites (Fe₂O₃/MgO NCs) were used for the antimicrobial activity. The hydrothermal approach was used to synthesize the samples (α-Fe₂O₃ NPs, MgO NPs, and Fe₂O₃/MgO NCs). The superhydrophobic surfaces of α-Fe₂O₃/MgO NCs were prepared by the spraying-coated sheets method with molar ratios (x = 0.01, 0.05, 0.1, and 0.2). The samples were characterized by XRD patterns, Raman analysis, FESEM images, EDX analysis, and FTIR spectrum. XRD patterns show that the average crystal sizes of the samples are 9, 25, and 42 nm, respectively. FE-SEM images of samples reveal the formation of worm-like nanoparticles with an approximate length between 100 and 120 nm, respectively. The EDX analysis indicated the presence of MgO and FeO NPs with high purity and uniform size and shape. The strong absorption peaks of the samples were 481, 431, and 574 cm⁻¹, respectively, as determined by the FTIR spectrum. Paper impregnated with α-Fe₂O₃/MgO NCs had its contact angle with a water droplet on its surface studied and compared. Coated sheets with molar ratios (x = 0.01, 0.05, 0.1, and 0.2) have contact angles of 153.9°, 154.2°, 155.6°, and 159.4°, respectively; this indicates that all four samples are quite hydrophobic. Gram-positive bacteria (<em>Staphylococcus aureus</em> and Staphylococcus epidemidis) had inhibitory zones that were 13.00 to 18.00 mm, 12 to 25 mm, and 8.00 to 10 mm in size, respectively, according to this study. <em>Escherichia coli</em> and <em>Klebsiella pneumoniae</em> were gram-negative bacteria, measuring 10.00 to 24.00 mm, 14.00 to 28.00 mm, and 6.00 to 10 mm, respectively. Inhibition zone diameters (IZDs) for fungi were correspondingly 12.00 mm, 10.00 mm, and 8.00 mm. This study examines a recently reported combination of samples with superhydrophobic surfaces using the spray method for antibacterial activity.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116216"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covalent terpyridine grafting on ZIF-8 unlocks trace copper sensing in complex matrices and efficient photocatalysis","authors":"Smriti Rana ,&nbsp;Yogesh Kumar ,&nbsp;Rahul Kaushik ,&nbsp;Pallav Mondal ,&nbsp;Lalita S. Kumar","doi":"10.1016/j.inoche.2026.116225","DOIUrl":"10.1016/j.inoche.2026.116225","url":null,"abstract":"<div><div>The coexistence of heavy metals and synthetic dyes in water systems necessitates multifunctional platforms for the simultaneous detection and degradation of these pollutants. Zeolitic Imidazole Frameworks (ZIFs) post-modification with organic ligands has gained significant attention for environmental applications. In this regard, a terpyridine-functionalized ZIF framework (<strong>ZATpy</strong>) was synthesized via post-synthetic grafting to introduce the terpyridine ligand (Tpy) on the ZIF-8 framework. Unlike most MOF sensors using coordinated ligands or single-function designs, <strong>ZATpy</strong> features covalently attached uncoordinated terpyridine sites offering direct metal-binding access and enabling both ultra-sensitive Cu(II) sensing and efficient photocatalysis in a single robust platform. UV–Vis spectroscopy confirmed high selectivity of Cu (II) recognition with optimal response in the neutral pH (5–7) range, minimally affected by competing ions with a limit of detection (LOD) of 0.131 μM. Notably, <strong>ZATpy</strong> retained its Cu(II) sensing ability in complex real water matrices, including Yamuna River water, Ganga River water, seawater, and tap water. Furthermore, Inductively Coupled Plasma Mass Spectrometry (ICP-MS) validated Cu (II) capture efficiency under sensing conditions with 28.7% adsorption efficiency. Photocatalytic studies revealed excellent degradation of methyl red dye, with 94.4% degradation in 60 mins and good reusability. Computational studies also indicated favourable adsorption energetics for Cu (II) and π–π interactions with aromatic dye substrate. The integration of free ligand functionality onto the porous ZIF surface enables concurrent ion recognition and charge-guided photo-catalysis, offering a viable approach for water purification.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116225"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phytochemicals-derived functional metal/metal oxide nanocomposites: Mechanistic insights and biological interactions","authors":"Mohammad Asim Saifi ,&nbsp;Aayasha Negi ,&nbsp;Amanpreet Kaur ,&nbsp;Lakshya ,&nbsp;Ramchander Merugu ,&nbsp;Sadhna Negi ,&nbsp;Mohamed Taha Yassin","doi":"10.1016/j.inoche.2026.116214","DOIUrl":"10.1016/j.inoche.2026.116214","url":null,"abstract":"<div><div>Phytochemically-derived metal and metal oxide nanocomposites (NCs) represent a pivotal advancement in sustainable nanomaterial synthesis. The core novelty of this review lies in proposing a predictive synthesis-structure-activity framework that systematically transitions green synthesis from an empirical methodology to a rational design paradigm. This analysis critically correlates phytochemical composition with precise control over NCs morphology, crystallinity, and surface properties, which in turn govern functional outcomes. The multifunctional bioactivity of these NCs, spanning antimicrobial, anticancer, antioxidant and regenerative applications, is examined with emphasis on their underlying synergistic mechanisms. These include phytochemical-metal interplay that modulates cellular internalisation, reactive oxygen species (ROS) generation and intracellular signalling pathways. Current limitations, such as reproducibility, toxicity and regulatory challenges, are addressed alongside prospects for biomedical and environmental applications. This review establishes a pioneering synthesis structure and activity framework that meticulously unpacks the green synthesis and multifunctional behaviour of plant-derived metal and metal oxide nanocomposites.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116214"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating structural stability, linear/nonlinear optical properties, and enhanced radiation attenuation: Optimized TiO2 concentration in bioactive nanoparticles","authors":"B.M. Alotaibi ,&nbsp;Ahmed M. Hassan ,&nbsp;Shams A.M. Issa ,&nbsp;Ahmed S. Ali ,&nbsp;Hesham M.H. Zakaly","doi":"10.1016/j.inoche.2026.116222","DOIUrl":"10.1016/j.inoche.2026.116222","url":null,"abstract":"<div><div>Bioactive nanoparticles (BNs) are attractive as a biomedical material; however, their physical properties have been little explored to enable their various applications. In this study, TiO₂-doped bioactive nanoparticles (BNs) with the composition 55SiO₂-(36-x)CaO-5P₂O₅-4Bi₂O₃-xTiO₂ (x = 0, 1, 2, 4, and 8 wt%) were synthesized via the sol-gel method and systematically investigated for their structural, linear/nonlinear optical, and radiation-shielding properties. X-ray diffraction (XRD) confirmed polycrystalline structures, with crystallite size decreasing from 28.5 nm (undoped) to 18.2 nm at 2 wt% TiO₂, then increasing at higher doping. UV–Vis analysis revealed tunable direct band gaps, peaking at 4.34 eV for 2 wt% TiO₂, correlating with enhanced network connectivity. The sample G/Ti-2 exhibited superior performance in terms of transmittance, refractive index, dielectric constant, and electrical conductivity, while minimizing optical losses and dielectric losses. The nonlinear optical (NLO) performance of the synthesized material is closely tied to its structural evolution with increasing dopant concentration. The sample G/Ti-2 demonstrated a significant enhancement in third-order nonlinear susceptibility (χ⁽³⁾) and nonlinear refractive index (n₂), which strengthens electron delocalization and boosts polarizability, key drivers of strong NLO responses for all-optical switching, optical limiters, and modulators, as well as for frequency conversion technologies. Radiation shielding evaluation showed improved attenuation coefficients with increasing TiO₂ content, with G/Ti-8 displaying the best shielding efficiency. These findings demonstrate that controlled TiO₂ doping significantly enhances the multifunctional performance of BNs, making them promising candidates for biomedical implants, photonic devices, and lightweight radiation shielding applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116222"},"PeriodicalIF":5.4,"publicationDate":"2026-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorine-doped carbon quantum dots for sunset yellow analysis in complex food matrices","authors":"Mei Wang ,&nbsp;Shan Mou ,&nbsp;Xiaofang Tian,&nbsp;Meijie Xie,&nbsp;Xinyu Luo,&nbsp;Pei Zhang,&nbsp;Yingjuan Wang,&nbsp;Boyan Zheng,&nbsp;Qingqing Zou,&nbsp;Qianchun Zhang","doi":"10.1016/j.inoche.2026.116221","DOIUrl":"10.1016/j.inoche.2026.116221","url":null,"abstract":"<div><div>Sunset yellow (SY) is a widely used artificial food coloring that can pose health risks when consumed in excess. In this study, a fluorescent sensor for the quantitative analysis of SY content in complex foods was reported. Using ammonium fluoride and sorbic acid as precursors, fluorine-doped carbon quantum dots (F-CDs) were synthesized via solvothermal method. The prepared F-CDs were characterized by transmission electron microscopy (TEM), atomic force microscopy (AFM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). The results revealed that F-CDs had a uniform morphology and fluorine-rich structure, with an average particle size of 2.15 nm. In addition, we found that F-CDs exhibited excellent selectivity for SY, mainly due to the fluorescence quenching effect of SY on F-CDs. Therefore, a fluorescent sensor based on F-CDs was constructed with a linear detection range of 0.010–75 μM (<em>R</em>² = 0.997) and a detection limit of 30 nM. The sensor's practical applicability was demonstrated by analyzing of SY in hard candy, tangerine peel sugar, peach jelly, beer, and bread, with recoveries of 92.1%–115% and RSDs of 1.0–4.8%. What's more, the fluorescence detection results were closely related to the HPLC-DAD validation results (relative deviation ≤0.17), highlighting the accuracy of the method. F-CD-based fluorescence detection platforms offer the advantages of simplicity, sensitivity, and reliability, providing a promising tool for routine SY monitoring in food safety applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"186 ","pages":"Article 116221"},"PeriodicalIF":5.4,"publicationDate":"2026-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}