Inorganic Chemistry Communications最新文献

{"title":"Enhancing structure and optoelectronic properties of ambient-processed FAPbI3 perovskites through phenylethylammonium iodide doping","authors":"Dahyunir Dahlan ,&nbsp;Voni Dwimanda ,&nbsp;Melia Rosa ,&nbsp;Annisa Zahra Ahdaliza ,&nbsp;Marjoni Imamora Ali Umar ,&nbsp;Muhammad Aniq Shazni Mohammad Haniff ,&nbsp;Harmadi Harmadi ,&nbsp;Iwan Sugihartono ,&nbsp;Akrajas Ali Umar","doi":"10.1016/j.inoche.2025.114298","DOIUrl":"10.1016/j.inoche.2025.114298","url":null,"abstract":"<div><div>Ambient-processed perovskite solar cells (PSCs) have become a focal point of discussion in recent years, aiming to facilitate the industrialization and practical application of these devices. Traditionally, PSCs have been prepared only in controlled environments. However, recent research highlights material engineering, particularly the organic doping of perovskite halides, as a promising strategy to achieve ambient-processable PSC performance. This study examines the effects of phenylethylammonium iodide (PEAI) on the structural and optoelectrical properties of ambient-processed FAPbI₃ perovskite. Ambient processed FAPbI₃ perovskite was obtained by doping with hexamine molecule. The introduction of PEAI into the ambient-processed FAPbI₃ lattice enhances the crystallinity and optoelectrical properties of the perovskite, with optimal results observed at a PEAI concentration of 2 mg/mL. This optimal incorporation of PEAI results in a power conversion efficiency (PCE) of 20.9 %, with a short circuit current (J_sc) of 24.8 mA/cm², a V_oc of 1.09 V, and a fill factor (FF) of 0.775. This represents a 31.4 % improvement compared to the pristine PSC device, which has a PCE of 15.9 %. These findings highlight the potential of PEAI incorporation in enhancing the stability and performance of FAPbI₃ PSCs through 2D structural enforcement and surface defect passivation, improving crystallinity.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114298"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601831","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":"Uniform-size RuAu bimetallic nanoalloy anode for photoelectrochemical remediation of diclofenac sodium","authors":"Adewale Odunayo Oladipo ,&nbsp;Benjamin Olawale Orimolade ,&nbsp;Potlako John Mafa ,&nbsp;Titus Alfred Makudali Msagati ,&nbsp;Alex Tawanda Kuvarega ,&nbsp;Sogolo Lucky Lebelo","doi":"10.1016/j.inoche.2025.114293","DOIUrl":"10.1016/j.inoche.2025.114293","url":null,"abstract":"<div><div>Bimetallic nanocatalysts are widely utilized for the photoelectrochemical degradation of persistent pharmaceutical contaminants. However, fabricating monodisperse nanocatalysts is crucial to achieving consistency and high efficiency in their applications. Thus, highly uniform and monodisperse powdered ruthenium-gold bimetallic nanoalloys (RuAuBNAs) from an aqueous solution were prepared from a facile one-pot route for the photoelectrochemical (PEC) degradation of diclofenac sodium (DFC). The physicochemical and structural properties were investigated using TEM, XRD, SAXS, EDS, TGA, UV–vis, and FTIR spectroscopy. The TEM and SAXS analysis showed that the obtained nanoalloys were highly monodisperse, mainly of uniform size and shape with a mean particle size of 9.49 ± 0.06 nm. The PEC performance showed a better degradation rate (0.0148 min⁻¹) which is 3.89 and 5.92 folds higher than those of photocatalysis (PC) and electrocatalysis (EC) under the bias potential of 1.5 V, respectively. The PEC reached a total organic carbon (TOC) removal of 71 % while the FTO/RuAuBNAs anode displayed appreciable stability after four reuse cycles. The improvement in PEC performance was linked to the synergistic effect of photocatalysis and electrocatalysis. This study offers a refresher foundation for using bimetallic nanoalloys to construct efficient PEC systems for the abatement of organic pollutants.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114293"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergic antibacterial activity of Guar gum functionalized 2D-MoS2-Gelatin-Ag nanocomposites","authors":"Y.K. Poojashree ,&nbsp;Belagal Motatis Anil kumar ,&nbsp;Karuppannan Suvetha ,&nbsp;Aralakuppe N. Priyadarshini ,&nbsp;Kalappa Prashantha ,&nbsp;Honnappa Nagarajaiah ,&nbsp;Muddenahalli S Sudhanva ,&nbsp;Rangappa Shobith ,&nbsp;Yarabahally R Girish","doi":"10.1016/j.inoche.2025.114296","DOIUrl":"10.1016/j.inoche.2025.114296","url":null,"abstract":"<div><div>A novel nano composite, Guar-gum functionalized 2D-MoS₂-Ag, was synthesized through a facile green synthesis method with in situ UV light irradiation method using varying concentrations of silver nitrate. This environmentally friendly approach aimed to integrate silver nanoparticles into the MoS₂ matrix. The synthesized nanocomposites was characterized using several techniques Fourier transform infrared spectroscopy (FT-IR) confirmed functionalization, UV visible spectroscopy (UV–Vis) revealed optical properties, and Field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) provide insights into its morphology. Powder X-ray diffraction (PXRD) confirmed the crystalline structure of the composites.</div><div>The antibacterial properties of synthesized nano composites was evaluated using the spread plate method against gram positive <em>Staphylococcus Aureus (SA)</em>, <em>Methicillin Resistant Staphylococcus Aureus (MRSA)</em> and gram negative <em>Escherichia Coli (E-Coli)</em>. The results demonstrated significant antibacterial activity, with decreased bacterial proliferation and colony forming abilities in concentration dependent manner. The enhanced performance was attributed to the synergistic effects of silver nanoparticles, which exhibit dual mechanisms by releasing silver ions and direct interaction with bacterial cell membranes. This study suggests that the Guar-gum functionalized 2D-MoS₂ (GG-Gel-MoS₂-Ag-1.0) is a promising antibacterial material with potential applications in medical and environmental fields.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114296"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610964","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":"High efficient photocatalytic treatment of cationic dye and antibacterial activity via wet chemically synthesized Zn-doped BiVO4 nano photocatalysts","authors":"N. Premkumar ,&nbsp;S.S. Naina Mohammed ,&nbsp;R. Thangarasu ,&nbsp;A. Senthil Kumar ,&nbsp;K. Navaneetha Pandiyaraj ,&nbsp;SaravanaVadivu Arunachalam ,&nbsp;Perumal Rameshkumar ,&nbsp;Pandirengan Thiruramanathan ,&nbsp;Ammapatti Ramalingam","doi":"10.1016/j.inoche.2025.114284","DOIUrl":"10.1016/j.inoche.2025.114284","url":null,"abstract":"<div><div>This study presents the synthesis of dual-function Zn_x-doped BiVO₄ (x = 0 %, 2 %, 4 %, 6 %) nanocatalysts using a cost-effective wet chemical method, focusing on their application in dye degradation and biomedical fields. X-ray Diffraction (XRD) results confirmed the formation of monoclinic bismuth vanadate (BiVO₄) crystal system with increasing grain size at higher Zn concentrations. High-Resolution Transmission Electron Microscopy (HRTEM), Selected Area Electron Diffraction (SAED) revealed merged nanosphere and nanorod-like structures with crystalline plane distances of 0.352 nm–0.376 nm. Field Emission Scanning Electron Microscopy (FESEM) shows that morphology evolution with Zn doping, while Energy Dispersive X-ray Analysis (EDAX) verified stoichiometric accuracy. High-resolution X-ray Photoelectron Spectroscopy (XPS), Raman spectra and Fourier Transform Infrared (FTIR) Spectroscopy analysis highlighted the compositional and peak shifts for various concentration of Zn doping. The nanomaterials exhibited band gap values of 2.54 eV–2.46 eV, with Brunauer-Emmett-Teller (BET) analysis revealing enhanced pore volume and surface area. Among all, wt.6 % Zn-doped BiVO₄ showed superior photocatalytic performance, achieving 91.2 % Methylene Blue (MB) dye degradation with excellent recyclability. Zn-doped BiVO₄ nanoparticles demonstrated marginally increased antimicrobial activity against Gram-negative bacteria (E. coli, <em>Y. pestis</em>, and <em>P. aeruginosa</em>) compared to Gram-positive bacteria (<em>B. subtilis</em> and <em>S. aureus</em>). Photocatalytic and Antibacterial results are emphasizing the Zn-doped BiVO₄ as a potential of nanocatalysts for environmental and biomedical applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114284"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621321","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":"Myco-fabricated CuONPs and Ch-CuONPs conjugate mediated by the endophytic fungus Aspergillus fumigatus SM4 with in vitro antimicrobial, antibiofilm, antioxidant and anticancer activity","authors":"Mervat G. Hassan ,&nbsp;Mahmoud S.A. Shahin ,&nbsp;Fathi Abdo Shafie ,&nbsp;Dina M. Baraka ,&nbsp;Ahmed A. Hamed","doi":"10.1016/j.inoche.2025.114216","DOIUrl":"10.1016/j.inoche.2025.114216","url":null,"abstract":"<div><div>The significant rise in antibiotic resistance has increased worries globally. In light of this situation, several investigations have been undertaken on biogenic nanoparticles and their conjugates to enhance their antibacterial and anticancer activities. The present work describes the myco-assisted biosynthesis of CuNPs using the marine-associated fungus <em>Aspergillus fumigatus</em> SM4. The biosynthesized CuNPs have been successfully coupled with chitosan. The Myco-CuNPs and Ch-CuNPs were characterized using UV, SEM, TEM, FTIR, XRD, and Zeta potential. Antimicrobial evaluation of both Myco-CuNPs and Ch-CuNPs indicated that CuNPs had substantial antibacterial efficacy, exceeding that of the crude extract, with inhibition rates of 78.25 % against <em>Staphylococcus aureus</em> and 70.25 % against <em>Escherichia coli</em>. The Ch-CuNPs showed potential biofilm inhibitory activity reached 52.62 % for <em>E. coli</em> and 51.52 % for <em>S. aureus</em>, respectively. The antifungal efficiency against <em>Candida albicans</em> demonstrated that CuNPs (45.36 %) surpassed the crude extract. However, nystatin emerged as the most effective antifungal drug (97.98 %). An antioxidant study by ABTS and DPPH tests revealed that Ch-CuNPs had enhanced antioxidant capacity relative to CuNPs and Vitamin C, with IC₅₀ values of 11.27 µg/mL and 16.15 µg/mL, respectively. The anticancer activity of these nanoparticles was assessed against the A549 cancer cell line, demonstrating that Ch-CuNPs exhibited greater selectivity with an IC₅₀ of 8.14 µg/mL, compared to CuNPs’ 10.35 µg/mL. The obtained results showed that CuNPs and Ch-CuNPs have antibacterial, antifungal, antioxidant, and anticancer effects, indicating its possible application in medicinal uses.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114216"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601833","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":"Quinolylhydrazide based organogelator as adsorbent for organic dyes and chemosensor for Pb2+","authors":"Chong Gu,&nbsp;Yifeng Zhou,&nbsp;Jiaqi Hou,&nbsp;Jihu Shan,&nbsp;Tao Zhang,&nbsp;Bing Wu","doi":"10.1016/j.inoche.2025.114303","DOIUrl":"10.1016/j.inoche.2025.114303","url":null,"abstract":"<div><div>A novel quinolylhydrazide based organogelator <strong>G1</strong> was synthesized and studied. <strong>G1</strong> forms stable organogels in methanol and ethanol, with critical gel concentration (cgc) as low as 5.9 mg·mL⁻¹ and 4.9 mg·mL⁻¹, respectively. It was shown that the van der Waals forces, π-π interactions, and hydrogen bonds were the main driving forces in the gelling process. Specifically, the <strong>G1</strong>-methanol gels could be used as a highly effective adsorbent for organic dye removal, such as, brilliant green (BG), rhodamine B (RB), bromocresol purple (BCP), malachite green (MG), crystal violet (CV), and bromocresol green (BCG), the adsorption capacity of <strong>G1-</strong>methanol gel for CV reached 14.91 mg·g⁻¹. Furthermore, <strong>G1</strong> could be act as chemosensor for detecting Pb²⁺ with high sensitivity and selectivity. The detection limit for Pb²⁺ was 9.3006 × 10⁻⁶ M, which might be attributed to the Pb²⁺-<strong>G1</strong> complex that formed between Pb²⁺ and the hydrazide moieties of <strong>G1</strong>.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114303"},"PeriodicalIF":4.4,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591404","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":"Green synthesis and analysis of iron oxide nanoparticles for methylene blue degradation by Fenton-like process: Antimicrobial properties and integrated AI-GA modeling","authors":"Nada Abbas ,&nbsp;Mouna Imene Ousaadi ,&nbsp;Mohammed Berkani ,&nbsp;Moisés Canle ,&nbsp;Kasrani Oumnia ,&nbsp;Lalitha Gnanasekaran ,&nbsp;Damià Barceló ,&nbsp;Yasser Vasseghian ,&nbsp;Hecini Abdeldjalil El Mouatez Billah","doi":"10.1016/j.inoche.2025.114268","DOIUrl":"10.1016/j.inoche.2025.114268","url":null,"abstract":"<div><div>This article attempts to synthesize iron oxide nanoparticles (IONPs) using an eco-friendly method involving an aqueous extract of <em>Ziziphus lotus</em> leaf as a reducing, nucleating, and capping agent. This green synthesis presents a healthier alternative to conventional physicochemical approaches. The effects of precursor and leaf extract concentration, reaction time, and temperature on IONPs yield were analyzed using hybrid approach optimization based on Box-Behnken Design (BBD) and Genetic Algorithm-Artificial Neural Network (GA-ANN). The results indicated that reaction time and extract concentration significantly influence the dry weight of IONPs. Optimal conditions for biosynthesis, determined by GA-ANN, were found to be 1 h, 62 °C, 0.099 M precursor concentration, and 100 g/L extract concentration. Morphological, optical, structural, and catalytic properties of the IONPs were investigated using X-ray diffraction (XRD), UV–visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM-EDX). The biosynthesized IONPs, comprising a mix of magnetite (Fe₃O₄) and α-hematite (Fe₂O₃) were spherical with particle sizes ranging from 34 to 54 nm. These IONPs exhibited antimicrobial activity against gram-negative bacteria (<em>P. aeruginosa and E. coli</em>) and fungi (<em>C. albicans and F. oxysporum</em>), The biosynthesized IONPs demonstrated significant catalytic activity in degrading methylene blue, especially when combined with hydroxylamine (HA), enhancing degradation efficiency from 20.38 % to 91.79 % with H₂O₂ and from 98.38 % to 99.11 % with NaClO within 30 min.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114268"},"PeriodicalIF":4.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621322","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":"Effect of Nd3+ and Ag+ doped on synthesis, structural and magnetic properties of Sr1−xNdxAgyFe12−yO19 nano hexaferrite","authors":"D. Jagadeeswara Rao ,&nbsp;K. Bhargavi ,&nbsp;Aruna Nayudu ,&nbsp;V. Nagalakshmi ,&nbsp;Ramakrishna Madaka ,&nbsp;Siriki Srinivasa Rao ,&nbsp;S. Yonatan Mulushoa","doi":"10.1016/j.inoche.2025.114279","DOIUrl":"10.1016/j.inoche.2025.114279","url":null,"abstract":"<div><div>The sol–gel auto-combustion process synthesised Sr_1−xNd_xAg_yFe_12−yO₁₉ hexaferrite materials, where x = y = 0.0, 0.02, 0.04, 0.06, 0.08 and 0.1. Citric acid was used as the fuel. The prepared samples were analyzed to study their structural and magnetic properties after doping with Neodymium (Nd³⁺) and Silver (Ag⁺) elements. Various analytical studies were used, including X-ray diffraction, Field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, and vibrating sample magnetometry. The crystallite size ranged from 31.74 to 38.77 nm, and X-ray diffraction (XRD) confirmed a single-phase hexagonal structure with space group <em>P</em>63/<em>mmc</em>. Field-emission scanning electron microscopy (FESEM) revealed the plate-like morphology of the particles. Fourier Transform infrared spectroscopy (FTIR) spectra at room temperature were used to determine the octahedral and tetrahedral sites’ thermodynamic parameters and bond structures. Magnetic characteristics, squareness ratio (0.47–0.48), coercivity (4935.66–7080.46 Oe), and saturation magnetization (64.01–31.13 emu/g) were examined using a vibrating sample magnetometer (VSM). The results indicate that the synthesized samples exhibit exceptional magnetic properties, making them suitable for permanent magnets and magnetic recording media applications.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114279"},"PeriodicalIF":4.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578955","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":"Synergistic in-vitro inhibition of lung cancer cells using L-carnosine-capped copper nanoclusters","authors":"Ritika Mittal ,&nbsp;Neetu Kumari ,&nbsp;Nitish Kumar Singh ,&nbsp;Mulaka Maruthi ,&nbsp;Nancy Gupta","doi":"10.1016/j.inoche.2025.114278","DOIUrl":"10.1016/j.inoche.2025.114278","url":null,"abstract":"<div><div>Traditional cancer treatments are often associated with high toxicity and significant side effects, limiting the safe dosage range for patients. To address these challenges, there is a critical need for specific medications with reduced toxicity and enhanced efficacy. This study combined the unique anticancer properties of L-carnosine, a dipeptide, and copper to synthesize L-carnosine-capped copper nanoclusters (Cu₄L₅). The nanoclusters were characterized using UV–vis spectroscopy, fluorescence spectroscopy, FT-IR spectroscopy, HR-TEM, HR-MS, and EDX mapping. The synthesized Cu₄L₅ exhibited synergistic anticancer effects against A549 lung cancer cells, as evidenced by MTT assay results showing significantly higher cytotoxicity toward cancer cells while demonstrating minimal toxicity to normal Vero-2 cells, as indicated by IC₅₀ values. Their anticancer properties were compared to those of L-carnosine alone and copper nanoclusters stabilized with L-histidine. Cu₄L₅ exhibited approximately twofold greater anticancer activity, confirming the enhanced efficacy of the L-carnosine-CuNCs combination. Additionally, CuNCs enable the detection of GSH in solution within the nanomolar concentration range using the Stern-Volmer equation. Computational studies of nanoclusters further revealed that copper atoms bind with ligands through its N of imidazole ring and C<img>O group, leaving carboxylate and NH₂ sites available for interacting with cancer cells. This dual functionality of Cu₄L₅, combining therapeutic and diagnostic capabilities, highlights its potential as a promising candidate for targeted cancer treatment with minimal off-target effects.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114278"},"PeriodicalIF":4.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621324","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":"Solvothermal synthesis of hematite (α-Fe2O3) nanoparticles: Influence of surfactants on morphology, magnetic anisotropy, MRI relaxivity and biocompatibility","authors":"Marin Tadic ,&nbsp;Jelena Lazovic ,&nbsp;Matjaz Panjan ,&nbsp;Biljana Vucetic Tadic ,&nbsp;Yoann Lalatonne","doi":"10.1016/j.inoche.2025.114290","DOIUrl":"10.1016/j.inoche.2025.114290","url":null,"abstract":"<div><div>Recent advancements in synthesis of hematite (α-Fe₂O₃) nanocrystals have enabled precise control of particle size and shape, thereby enhancing their use in catalysis, photonics, magnetic devices, electronics, medical diagnostics, magneto-mechanical actuators, solar cells and sensors. This study emphasizes the role of surfactants in the solvothermal synthesis of α-Fe₂O₃ nanoparticles, uncovering a novel connection between particle morphology and functional properties. By precisely adjusting surfactant concentrations (sodium hydroxide and acetic acid), the hematite particle morphology transitions from irregular shapes to uniform, plate-like structures. This transformation significantly enhances magnetic anisotropy, resulting in high coercivity (H_C = 1725 Oe, above the Morin transition T_M = 263 K) in the plate-like hematite nanoparticles, whereas irregularly shaped hematite nanoparticles exhibit coercivities of 235 Oe and 256 Oe (above the Morin transition T_M = 251 and T_M = 239 K, respectively). Furthermore, the study establishes a clear relationship between hematite nanoparticle shape and MRI relaxivity. The MRI results indicated that hematite nanoplates had superior transverse relaxivity rates (r₂ = 8.68 mM⁻¹ s⁻¹) compared to the irregular hematite nanoparticles (r₂ = 5.28 mM⁻¹ s⁻¹). Conversely, the irregular hematite nanoparticles displayed better longitudinal relaxivity (r₁ = 0.304 mM⁻¹ s⁻¹) than the hematite nanoplates (r₁ = 0.041 mM⁻¹ s⁻¹). Furthermore, the hematite nanoparticles demonstrated low cytotoxicity, indicating they are safe for cells. These findings suggest that controlling iron oxide nanoparticle morphology is crucial for enhancing their applications in magnetic materials and in biomedicine.</div></div>","PeriodicalId":13609,"journal":{"name":"Inorganic Chemistry Communications","volume":"176 ","pages":"Article 114290"},"PeriodicalIF":4.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610967","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}