Journal of Nanoparticle Research最新文献

{"title":"Simulation and properties of jet-electrodeposited Ni-W–SiC coatings","authors":"Shikun Pang,&nbsp;Kedi Jiang,&nbsp;Yunwei Zhu","doi":"10.1007/s11051-025-06385-0","DOIUrl":"10.1007/s11051-025-06385-0","url":null,"abstract":"<p>Recently, researchers have extensively explored material surface modification techniques, including electrodeposition, chemical plating, and laser melting. In this work, Ni-W–SiC coatings were prefabricated by employing the jet electrodeposition (JED) technique. The impact of the nozzle outlet diameter on the flow field within the processing area was analyzed through COMSOL simulation to determine the optimal nozzle size. The surface morphology, roughness, wear, and corrosion resistance of the coatings were evaluated using SEM, TEM, a surface roughness tester, a friction and wear testing machine, and full immersion corrosion tests. The results showed that nozzle outlet jet rates were 4.78, 2.91, and 2.12 m/s for outlet diameters of Φ1, Φ2, and Φ3 mm, respectively. The highest deposition rate of 10.68 µm/min was achieved with a nozzle outlet diameter equal to Φ2 mm. This nozzle condition imparted optimal kinetic energy to the plating solution, enhancing shear forces at the substrate surface and reducing the diffusion layer thickness. As a result, it promoted uniform incorporation of SiC nanoparticles and refined the Ni-W grain structure. Numerous SiC nanoparticles with a mean diameter equal to 41.5 nm were incorporated into the coating deposited at Φ2 mm. Similarly, Ni, Si, W, and C elements were observed in the cross-section of the coating. The XRD peaks at 44.6°, 51.5°, and 77.1° for all three coatings corresponded to the Ni-W (111), (200), and (220) crystal planes. The wear rate of the coating deposited at Φ2 mm was only 0.16 mg/min, indicating excellent wear resistance. Furthermore, few corrosion products were observed on the surface of the Φ2-mm coating, with a corrosion weight loss of 1.5 mg and a corrosion rate (<i>V</i>_<i>c</i>) of 0.08 mg/day.</p>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive engineering leads to stable halide perovskite with bipolar resistive switching behavior","authors":"Qi Bu,&nbsp;Zhen Fan,&nbsp;Xingyu Liu,&nbsp;Zhijie Luo,&nbsp;Yuhui Zheng,&nbsp;Qianming Wang","doi":"10.1007/s11051-025-06400-4","DOIUrl":"10.1007/s11051-025-06400-4","url":null,"abstract":"<div><p>Halide perovskites have been considered as promising candidates for nonvolatile memory systems, but the specific study of structure–property relationship for such flexible framework is far from satisfied. The employment of bismuth avoids the toxicity of lead and instability of APbX₃ structure, a new model of Cs₃Bi₂Br₉ has been developed. The well control of crystal defects is achieved by the addition of low-molecular-weight molecule (citric acid (CA)) during solution phase synthesis. The switching window and device performance are further improved by incorporating Poly(methyl methacrylate) (PMMA) into the perovskite layer. Through synergistic additives treatment, the devices demonstrate bipolar resistive switching behavior with low operating voltages (± 0.6 V), significant ON/OFF ratio (10⁴), stable cyclic retention (600 cycles), and prolonged retention times (&gt; 300 s). These results offer new insights for the design of lead-free perovskite memory devices and will be beneficial to optimize the operating processes.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Leaf–like copper–based nanocomposites as adsorbents for dispersive solid-phase extraction: application to determination of cobalt in lemon balm tea using FAAS","authors":"Elif Yazıcı,&nbsp;Merve Fırat Ayyıldız,&nbsp;Süleyman Bodur,&nbsp;Sezgin Bakırdere","doi":"10.1007/s11051-025-06391-2","DOIUrl":"10.1007/s11051-025-06391-2","url":null,"abstract":"<div><p>This study proposed an analytical method named dispersive solid phase extraction–flame atomic absorption spectrometry (DSPE-FAAS) for the quantitation of cobalt in balm tea samples. Copper-based nanocomposites were used as adsorbent in the DSPE process. Influential DSPE parameters such as pH/volume of buffer solution, nanocomposite amount, sample volume, mixing type/period, and eluent concentration/volume were optimized to augment signal-to-noise ratio of cobalt. System analytical performance study for the DSPE-FAAS method was carried out, and limit of detection/quantitation (LOD/LOQ) values were recorded as 5.80 µg/kg and 19.33 µg/kg, with a relatively wide dynamic range (20.59 – 400.68 µg/kg). Spiked lemon balm tea samples were employed to perform recovery studies, and satisfactory recovery results were obtained between 76.7% and 128.1% via the external standard calibration method. According to the recorded recovery results, the proposed DSPE-FAAS method can be accurately applied to lemon balm tea samples in order to determine cobalt content.\u0000</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thiol ligands engineering for long-term luminescence efficiency of perovskite nanocrystals","authors":"Vitali Krukov,&nbsp;Andrei Ramanenka,&nbsp;Anastasia Rotkovich,&nbsp;Olesya Vershinina,&nbsp;Olga Kulakovich","doi":"10.1007/s11051-025-06390-3","DOIUrl":"10.1007/s11051-025-06390-3","url":null,"abstract":"<div><p>Nanocrystals of metal halide perovskites have attracted attention due to their unique luminescent properties, making them promising for optoelectronic applications. However, the stability and emission efficiency of perovskite nanocrystals can decrease depending on the synthesis and storage conditions. To address this challenge, ligand environments around the nanocrystals have been explored. Here we propose using (3-mercaptopropyl)trimethoxysilane as a ligand in the post-synthetic treatment of CsPbBr₃ nanocrystals. This treatment has been shown to increase the photoluminescence quantum yield of perovskites as well as their long-term luminescence efficiency. These effects are attributed to stronger interactions of the -SH group with lead compared to the amino group and the formation of bonds between ligand molecules, leading to a more stable ligand shell. The results obtained are useful in the development of perovskite-based LEDs.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring Group 13 (B, Al, Ga, In) mono-doped fullerenes (C₅₉X) for methane adsorption: a DFT and QTAIM investigation","authors":"Monsurat A. Raimi,&nbsp;Chiamaka Rita Nwokoye,&nbsp;Samuel Samuel Effiong,&nbsp;Emmanuel K. Aidoo,&nbsp;John A. Agwupuye,&nbsp;Musa Runde","doi":"10.1007/s11051-025-06396-x","DOIUrl":"10.1007/s11051-025-06396-x","url":null,"abstract":"<div><p>Substitutionally doped fullerenes are an emerging class of materials with unique structural and electronic properties, making them attractive for various technological applications, including gas storage. In this study, we investigated the structural and electronic characteristics of Group 13 mono-doped fullerenes (C₅₉X, where <i>X</i> = B, Al, Ga, In) using density functional theory (DFT) at the M06-2X/LanL2DZ level. The aim is to assess the stability and suitability of C₅₉X as a surface for methane (CH₄) adsorption. The results indicate that doping with Group 13 elements does not significantly alter the C–C bond lengths of the fullerene cage. Frontier molecular orbital (FMO) analysis reveals that the Al-doped system (CH₄–Al–C₅₉) exhibits the lowest energy gap after adsorption (1.733 eV), indicating the highest reactivity and lowest stability among the studied complexes. Significant variations in the energy gaps before and after methane adsorption were observed: C₆₀ and B–C₅₉ showed decreased energy gaps (by 0.005 eV and 0.002 eV, respectively), suggesting increased reactivity; Ga–C₅₉ and In–C₅₉ exhibited increased gaps (by 0.008 eV and 0.005 eV), indicating reduced reactivity; while Al–C₅₉ showed no change, implying consistent reactivity. These findings highlight the potential of Group 13-doped fullerenes as tunable materials for methane adsorption applications.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical insights into the thermoelectric properties of carbon, germanium, and silicon nanosheets: a comparative study","authors":"Fouad N. Ajeel,&nbsp;Mustafa K. Salman,&nbsp;Alaa M. Khudhair,&nbsp;W. A. Abdul-Hussein","doi":"10.1007/s11051-025-06398-9","DOIUrl":"10.1007/s11051-025-06398-9","url":null,"abstract":"<div><p>This study examined the electrical conductivity, Seebeck coefficient, electronic and phonon thermal conductance, and overall figure of merit (<span>(text{ZT})</span>) of (6,0) C–C, Ge–Ge, and Si–Si nanosheets as functions of chemical potential in order to systematically analyze their thermoelectric properties at room temperature. We achieved a thorough understanding of the interaction between electrical and thermal transport in these two-dimensional materials by using first-principles calculations based on density functional theory-based tight-binding (DFTB) combined with non-equilibrium green function (NEGF) calculations. The results indicate Si–Si nanosheets display higher thermoelectric properties due to their higher electrical conductivity and Seebeck coefficient along with lower phonon thermal conductance, leading to the highest ZT. The Ge–Ge nanosheets exhibit moderate thermoelectric performance, while the C–C nanosheets demonstrated are limited by lower electrical conductance. The results offers interesting insights into potential uses of C–C, Ge–Ge, and Si–Si nanosheets as next-generation thermoelectric materials for renewable energy applications.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green-synthesized gold nanoparticles exhibit neuroprotective activity against oxidative stress-induced damage in SH-SY5Y cells","authors":"Z. Nkentsha,&nbsp;S. Rambharose","doi":"10.1007/s11051-025-06387-y","DOIUrl":"10.1007/s11051-025-06387-y","url":null,"abstract":"<div><p>Neurodegenerative diseases such as Alzheimer’s are strongly driven by oxidative stress, yet existing antioxidant therapies are limited by low bioavailability and poor blood–brain barrier (BBB) penetration. In this study, we report the green synthesis of gold nanoparticles (AuNPs) using three distinct phytochemicals (morin hydrate, polydatin, and berberine chloride) and demonstrate their potent neuroprotective effects against oxidative stress-induced damage in SH-SY5Y cells. Synthesized AuNPs were characterized via UV–visible spectroscopy, DLS, SEM, FTIR, and zeta potential analysis. Antioxidant potential was assessed using DPPH, WST-1, TBARS, DCFH-DA assays, and confocal microscopy in paraquat-induced oxidative stress in SH-SY5Y cells. All phytochemically synthesized AuNPs demonstrated excellent colloidal stability (zeta potential &gt; ± 30 mV), spherical-to-cuboidal morphology, and sizes &lt; 150 nm. They exhibited superior ROS scavenging capacity and biocompatibility relative to conventional AuNPs and parent phytochemical compounds. Notably, polydatin-AuNPs significantly reduced lipid peroxidation and cellular ROS to baseline levels. These results suggest green-synthesized AuNPs as promising therapeutic nanoplatforms for mitigating oxidative stress in neurodegenerative disorders.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11051-025-06387-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mineral oils modified with CdSeTe QDs for improved stability and dielectric performance in high-voltage applications","authors":"Yunus Biçen,&nbsp;Erdem Elibol,&nbsp;Tuna Demirci","doi":"10.1007/s11051-025-06389-w","DOIUrl":"10.1007/s11051-025-06389-w","url":null,"abstract":"<div><p>This study explored the application of CdSeTe quantum dots (QDs) in mineral oils for high-voltage applications through a comprehensive approach. CdSeTe QDs were synthesized using an organometallic method and added to mineral oil at concentrations of 1 mg/L (C1), 5 mg/L (C2), and 10 mg/L (C3). The samples’ stability condition was monitored for a long period, and physicochemical tests were performed. Experimental results show that QD-modified oils have enhanced electrical properties compared to the base oil. The breakdown voltage was in the range of 17 to 23 kV for the base oil, while the breakdown voltage was in the range of 20 to 39 kV for the QD-modified (C2) insulating fluid sample. Throughout the 25-day monitoring period, the QDs were found to be properly dispersed in oil and free of aggregation in all samples. Values such as density and viscosity remained fairly constant due to the relatively low concentration ratio. However, an increase in total acid number was observed with increasing concentration. These results imply that QD-enhanced insulation oils may have applications in high-voltage applications in the future. The main innovation of this study lies in demonstrating that CdSeTe QDs can significantly enhance the dielectric strength of mineral oils while maintaining their essential physicochemical properties, offering a novel approach for improving insulation performance in high-voltage applications.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper Oxide Nanoparticles as Dual-Action Inhibitors of Biofilm Formation and Virulence in Candida albicans and Proteus mirabilis","authors":"Bharti Sharma,&nbsp;Amruta Shelar,&nbsp;Sanyukta Salve,&nbsp;Jaiprakash Sangshetti,&nbsp;Haribhau Gholap,&nbsp;Archana Sharbidre,&nbsp;Rajendra Patil","doi":"10.1007/s11051-025-06384-1","DOIUrl":"10.1007/s11051-025-06384-1","url":null,"abstract":"<div><p><i>Candida albicans</i> and <i>Proteus mirabilis</i> play significant roles in biofilm-related infections, primarily due to their ability to adhere to implanted medical devices and form mature biofilms. To enhance the effectiveness of medical devices and reduce the risk of infections, it is crucial to prevent both the initial adhesion of these microorganisms and the subsequent formation of biofilms on surfaces. The present study explores the antibiofilm efficacy of synthesized copper oxide nanoparticles (CuO NPs) against <i>C. albicans</i> and <i>P. mirabilis</i>, focusing on their physicochemical properties, capabilities to inhibit biofilm formation, gene expression responses, and biocompatibility with mouse embryonic kidney cell lines. The results indicate that CuO NPs possess notable antibiofilm and anti-virulent properties. Analytical techniques, including X-ray diffraction and scanning electron microscopy, confirmed that the produced CuO NPs have a crystalline structure with a cubic morphology. Importantly, CuO NPs demonstrated significant efficacy in reducing the viability of biofilm cells at relatively low concentrations—specifically, 6.25 µg/mL for <i>P. mirabilis</i> and 50 µg/mL for <i>C. albicans</i>. The scanning electron microscopy provided further evidence supporting these findings. Furthermore, CuO NPs were shown to markedly reduce the virulence of both microorganisms, for instance, urease enzyme activity in <i>P. mirabilis</i> and hyphal development in <i>C. albicans</i> decreased by 98%. Quantitative polymerase chain reaction analysis revealed a down-regulation of biofilm and virulence-associated genes in both organisms after treatment with CuO NPs. A cytotoxicity assessment indicated that CuO NPs did not significantly affect the viability of the 3T3-L1 mouse embryonic fibroblast cell line, suggesting good biocompatibility. Thus, CuO NPs emerge as a promising option for development as biocompatible antibiofilm agents to combat biofilm-related infections.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Au/ZnO:Ga-polystyrene nanocomposite Schottky diodes for gamma radiation sensing and detection: impact of Ga dopant content","authors":"Sajjad Ali Ameen,&nbsp;Mahmood Salim Karim,&nbsp;Adel H. Omran Alkhayatt","doi":"10.1007/s11051-025-06386-z","DOIUrl":"10.1007/s11051-025-06386-z","url":null,"abstract":"<div><p>The detection of atomic and nuclear radiation is becoming increasingly critical due to nuclear threats, accidents, essential environmental monitoring, and recent nuclear disasters. Inorganic and organic semiconducting materials can be utilized in the Schottky diode structure for sensing and detecting gamma rays. In this work, undoped and Ga-doped ZnO (ZO and GZO) nanoparticles (Ga: 2, 4, and 6 wt%) were synthesized using a hydrothermal method at a novel reaction time of 5 h and a reaction temperature of 160 °C. Additionally, the nanocomposites of ZO-PS and ZnO:Ga-PS were prepared via the drop-casting method. Schottky diodes were constructed with the structures Au/ZO-PS/Au and Au/GZO-PS/Au. The structural, morphological, topographical, and photoluminescence characteristics of the prepared samples were investigated based on Ga dopant content. The current–voltage (I-V) characterization of the fabricated Schottky diodes was studied under non-radiative conditions and gamma irradiation for 10, 20, and 30 min. The I-V diode parameters were measured at different irradiation times and varying Ga contents. The results indicated that the diode current increased with longer irradiation times and higher Ga dopant content, while the Schottky barrier height decreased with increasing Ga dopant content. The optimal Schottky diode parameters were observed at a rapid irradiation time of 10 min, where the diode current increased from 1.75 to 13.1 × 10⁻⁷ A, and the Schottky barrier height decreased from 0.71 to 0.66 eV for undoped and 6 wt% Ga-doped ZnO, respectively. Furthermore, the significant increase in diode current (I) values at a low irradiation time of 10 min can serve as a foundation for designing and constructing a sensitive gamma ray sensor and detector. Additionally, the results suggest that Au/ZO-PS/Au and Au/GZO-PS/Au-based diodes can function as gamma ray sensors and detectors.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"27 7","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}