Materials Chemistry and Physics最新文献

{"title":"Impact of Ag coated CoFe2O4, NiFe2O4, and ZnFe2O4 quantum dots synthesized by co-precipitation route for anticancer activity against MDA-MB 231 and MCF-7 breast cancer cell lines","authors":"Kamlesh V. Chandekar ,&nbsp;Akash Kapse ,&nbsp;Shamal Chinke ,&nbsp;Mohd Shkir ,&nbsp;Kartikey J. Chavan ,&nbsp;Shashank S. Kamble ,&nbsp;Arjun R. Potinde","doi":"10.1016/j.matchemphys.2025.131963","DOIUrl":"10.1016/j.matchemphys.2025.131963","url":null,"abstract":"<div><div>Silver (Ag) coated CoFe₂O₄ (CF), NiFe₂O₄ (NF), and ZnFe₂O₄ (ZF) quantum dots (QD) were synthesized by the co-precipitation route. Phase analysis, structural, and spectroscopic properties of Ag: CoFe₂O₄ (Ag:CF), Ag: NiFe₂O₄, (Ag:NF), and Ag: ZnFe₂O₄ (Ag: ZF) MNPs were examined by X-ray diffraction (XRD) and Raman spectroscopy. The spherical shape morphology with the particle size of 9.25 ± 0.15, 5.13 ± 0.03, and 5.46 ± 0.08 nm for Ag:CF, Ag:NF, and Ag: ZF MNPs, respectively were determined by high-resolution transmission electron microscopy (HRTEM). The respective oxidation states of Co, Ni, Zn, Fe, O, and Ag metals in the prepared MNPs were determined by X-ray photoelectron spectroscopy (XPS). The saturation magnetization <span><math><mrow><mi>M</mi><mi>s</mi></mrow></math></span> of 58.65, 46.01, and 47.31 (emu/g), remanent magnetization <span><math><mrow><mi>M</mi><mi>r</mi></mrow></math></span> of 9.91, 1.46, 0.972 (emu/g), and coercive field <span><math><mrow><mi>H</mi><mi>c</mi></mrow></math></span> of 518, 36, and 18 Oe for Ag-coated CF, NF and ZF NPs was determined by M − H hysteresis at ± 7 T. M-T spectra examined the blocking temperature less than 300K at 100 Oe for Ag: CF, Ag: NF, and Ag: ZF MNPs, respectively. The prepared quantum dots for Ag: MFe₂O₄ (M = Co, Ni, Zn) NCs exhibiting superparamagnetic (SP) property can be employed for the treatment of different diseases. The anticancer activity of Ag: MFe₂O₄ (M = Co,Ni,Zn) NPs in various concentrations (5, 10, 20, 40, 80, and 160 μg/mL) were employed against MDA-MD 231, and MCF-7 cell lines respectively. At low dose (5 μg/mL), the Ag:CF, Ag:NF, Ag: ZF NPs exhibited cell viability 69.49 %, 59.16 %, and 63.23 %, respectively compared to 10, 20, 40, 80, and 160 μg/mL for MDA-MD 231 cell line. At dose of (20 μg/mL), the Ag:CF, and Ag: ZF NPs exhibited cell viability 86.53 %, and 69.35 %, respectively compared to 5, 10, 40, 80, and 160 μg/mL for MCF-7 cell line. Ag: NF NPs exhibited cell viability 72.04 % at dose of 10 (<em>μ</em>g/mL) compared to other concentrations for MCF-7 cell line. MTT assay of prepared NPs exhibits Ag: MF NCs more cytotoxic compared to positive control, suggesting potential applications as a drug carrier.</div><div>The anticancer activity of Ag: CF, Ag:NF, and Ag: ZF NCs samples created in 10, 20, 40 and 80 μg/mL contents against the MCF-7 cell line were analyzed using SRB assay. Ag: ZF, Ag:NF, and Ag:NF NPs samples at the 20 μg/mL provide more cytotoxic effect against MCF-7 cells and indicate as a significant drug carrier in the treatment of Breast cancer.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131963"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In situ synthesis of Si-C@flake graphite for solid-state symmetric supercapacitors","authors":"Han-Wei Chang ,&nbsp;Chia-Hsiang Lee ,&nbsp;Wei-Lu Wu ,&nbsp;Sheng-Han Zheng ,&nbsp;Kuo-Chuang Chiu ,&nbsp;Tzu-Yu Liu ,&nbsp;Yu-Chen Tsai","doi":"10.1016/j.matchemphys.2025.131967","DOIUrl":"10.1016/j.matchemphys.2025.131967","url":null,"abstract":"<div><div>In this work, the Si–C@flake graphite heterostructure was in situ synthesized from pencil graphite and Si powder through combined carbonization and electrochemical activation processes. During synthesis, the flake graphite simultaneously functioned as a conductive substrate, current collector, and carbon source, while Si powder served as the silicon precursor. Defect and interface engineering of flake graphite via synthesis strategy promotes the formation of interconnected Si–C@flake graphite heterostructures. The resulting architecture provided a continuous conductive network, abundant electroactive sites, and strong interfacial coupling, which collectively enhanced ion/electron transport and improved charge-storage efficiency. Benefiting from these structural advantages, the Si–C@flake graphite electrode delivered a high areal capacitance of 1746.1 mF cm⁻² at 1 mA cm⁻² and retained 95.0 % of its initial capacitance after 3000 cycles at 32 mA cm⁻² in a three-electrode configuration. Furthermore, the Si–C@flake graphite electrode was employed to assemble a solid-state symmetric supercapacitor, which exhibited excellent long-term cycling durability, maintaining 84.6 % capacitance retention after 10,000 cycles, and was capable of lighting multiple LEDs, demonstrating its strong potential for practical energy storage applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131967"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interplay among composition, structure, and glass-transition in Cu–Zr–Al glassy alloys revealed through atomistic data analytics","authors":"Debopriyo Banerjee,&nbsp;Amlan Dutta","doi":"10.1016/j.matchemphys.2025.131945","DOIUrl":"10.1016/j.matchemphys.2025.131945","url":null,"abstract":"<div><div>This study employs molecular dynamics simulations to investigate the effect of stoichiometric variations on the atomistic structure and glass-transition temperature (<span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>g</mi></mrow></msub></math></span>) of ternary Cu–Zr–Al metallic glasses. A new method is proposed for more accurate <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>g</mi></mrow></msub></math></span> estimation, offering an improvement over the conventional linear extrapolation method. Simulation results reveal that <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>g</mi></mrow></msub></math></span> increases with Al-content, suggesting that compositional tuning can enhance glass-forming ability. Structural characterization indicates that Al atoms favor heterogeneous bonding with Cu and Zr while tending to avoid the Al–Al bonds. Coordination analysis shows that ideal icosahedral clusters are most frequently centered on the Cu and Al atoms. Detailed cluster statistics and correlation analyses demonstrate that a higher Zr-content promotes the formation of Zr-centered distorted icosahedral clusters but suppresses their Cu- and Al-centered counterparts. Surprisingly, despite being a minority element in the composition of the ternary glasses by a significant margin, it is the Al-content that shows the strongest direct correlations with most of the ideal and distorted icosahedral clusters. It emphasizes aluminum’s unique role in stabilizing the glassy structure. These findings offer new insights into the relationships among composition, structure, and properties in bulk metallic glasses and highlight the potential of guiding the compositional optimization of Cu–Zr–Al alloys for improved glass-forming ability and thermal stability.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131945"},"PeriodicalIF":4.7,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced magnetic, dielectric and microwave absorption properties of (Bi0.7Ba0.285Ca0.015) (Fe0.7Ti0.3)O3/Ba0.8Sm0.2Fe12O19 multiferroic composites","authors":"Jaswinder Pal ,&nbsp;Sunil Kumar ,&nbsp;Jahangeer Ahmed ,&nbsp;Saad M. Alshehri ,&nbsp;J. Lopéz-García ,&nbsp;Satvir Singh ,&nbsp;Nitin Tandon ,&nbsp;Anupinder Singh","doi":"10.1016/j.matchemphys.2025.131954","DOIUrl":"10.1016/j.matchemphys.2025.131954","url":null,"abstract":"<div><div>This study investigates the synthesis and characterizations of (1-<em>x</em>) Bi_0.7Ba_0.285Ca_0.015Fe_0.7Ti_0.3O₃ - (<em>x</em>) Ba_0.8Sm_0.2Fe₁₂O₁₉ (BFBCT–BSFO) multiferroic composites (<em>x</em> = 0.1 to 0.5) synthesized via the mechano-chemical activation technique. Le-Bail refinement of X-ray diffraction data confirms the chemical compatibility and phase stability of the composites, while scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analysis reveal a uniform grain distribution with effective phase mixing. Electrical conductivity studies indicate localized carrier hopping, with the highest AC conductivity observed at <em>x</em> = 0.5 due to enhanced Fe²⁺/Fe³⁺ electron transfer dynamics. Dielectric analysis demonstrates non-Debye relaxation behavior, where increasing BSFO content leads to enhanced dielectric permittivity and loss. The magnetic measurements reveal a significant increase in remnant magnetization, reaching 30.18 emu/g at <em>x</em> = 0.5, attributed to interfacial exchange coupling between soft and hard magnetic phases. The highest magnetoelectric coupling coefficient of 6.31 mVcm⁻¹Oe⁻¹ at <em>x</em> = 0.5 demonstrates strong magnetoelectric interactions. Microwave absorption studies show improved reflection loss, with the <em>x</em> = 0.5 sample achieving a maximum absorption of −12.26 dB at 16 GHz, highlighting its potential for electromagnetic (EM) shielding and stealth applications. The enhanced properties arise from synergistic magneto-dielectric coupling, interfacial polarization effects, and optimized impedance matching. These findings establish the BFBCT–BSFO composite as a promising candidate for high-performance microwave absorption and multifunctional EM applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131954"},"PeriodicalIF":4.7,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable recovery of lithium metal from battery black powder via combustion-magnesiothermic reduction and mineral oil saturated hydrocarbon separation","authors":"Sin Hyong Joo ,&nbsp;Woo Seok Choi ,&nbsp;Hyejin Yoon ,&nbsp;Xuan Viet Nguyen ,&nbsp;Hayk Nersisyan ,&nbsp;Jong Hyeon Lee","doi":"10.1016/j.matchemphys.2025.131960","DOIUrl":"10.1016/j.matchemphys.2025.131960","url":null,"abstract":"<div><div>Black powder, comprising a blend of cathode and anode materials from depleted lithium-ion batteries, constitutes a significant secondary source of lithium. This study presents an energy-efficient and sustainable multi-step approach for the direct recovery of high-purity lithium metal from black powder. The raw material undergoes heat treatment in an argon atmosphere at 700 °C, followed by dissolution in water to yield lithium hydroxide (LiOH). The LiOH powder extracted from the solution is combined with magnesium (Mg) and transformed into a Li/MgO composite through combustion synthesis in an argon atmosphere. The thermodynamics of combustion, wave propagation, and hydrogen evolution during the reaction are systematically examined. Subsequently, mineral oil saturated hydrocarbon (MOSH) serves as a protective medium for the extraction of lithium metal from the Li/MgO composite at 300 °C. Density functional theory (DFT) calculations indicate that MOSH enhances Li adsorption on MgO, consistent with the experimentally observed constraints in lithium flotation. The recovered lithium demonstrates a purity of 99.9 wt%, yet the yield is relatively modest at 50–55 wt%. This study presents a technically straightforward, scalable method for lithium metal recycling and highlights critical interfacial challenges that must be addressed to improve recovery efficiency.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131960"},"PeriodicalIF":4.7,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Alginate/bentonite-gC3N4 hydrogel beads for enhanced photocatalytic water remediation","authors":"G Syed Maroof,&nbsp;MD Furqaan Valiyathur,&nbsp;Mohammed Rehan Katiyan,&nbsp;Anver Basha Kottur,&nbsp;Ansar Ali Z,&nbsp;Mohammed Safiullah Sakvai","doi":"10.1016/j.matchemphys.2025.131956","DOIUrl":"10.1016/j.matchemphys.2025.131956","url":null,"abstract":"<div><div>Biomaterials provide sustainable, cost-effective, and tunable supports for photocatalysts in wastewater treatment. This study reports the incorporation of Bentonite-graphitic carbon nitride (BG) in alginate (Alg) via ionotropic cross-linking to form Alginate/Bentonite-graphitic carbon nitride (ABG) hydrogel beads, which designed to overcome the low adsorption capacity and poor reusability of conventional photocatalysts. Alg served as a three-dimensional porous matrix, ensuring stability and uniform BG dispersion. While Nano-Bentonite (Bent) enhanced pollutant adsorption and graphitic carbon nitride (g-C₃N₄) facilitated visible-light harvesting with efficient charge separation. Comprehensive characterization using Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), UV–visible diffuse reflectance spectroscopy (UV–Vis DRS), scanning electron microscopy-Energy dispersive X-ray analysis (SEM-EDAX), and X-ray photoelectron spectroscopy (XPS) confirmed successful integration of BG and favourable structural, elemental, and optical properties. Under UV–visible light, the hydrogel beads achieved 93 % degradation of methylene blue (MB) within 70 min and maintained 72 % efficiency after five reuse cycles, demonstrating durability and operational stability. The bandgap decreased from 2.46 eV (BG) to 1.91 eV (ABG), enhancing visible-light absorption and charge separation. The synergistic effects of alginate, bentonite, and graphitic carbon nitride resulted in superior photocatalytic performance, highlighting the potential of this reusable, eco-friendly system for industrial wastewater remediation.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131956"},"PeriodicalIF":4.7,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water desorption-driven negative thermal expansion behavior of synthesized potassium-ion-exchanged gismondine zeolite","authors":"Mone Hemmi,&nbsp;Naoki Arimitsu,&nbsp;Yasuhide Mochizuki,&nbsp;Akira Nakajima,&nbsp;Toshihiro Isobe","doi":"10.1016/j.matchemphys.2025.131936","DOIUrl":"10.1016/j.matchemphys.2025.131936","url":null,"abstract":"<div><div>The thermal shrinkage behavior of low-silica gismondine (GIS)-P2 zeolite, obtained via hydrothermal synthesis, was evaluated. The volumetric coefficients of thermal expansion (CTEs) of potassium-ion-exchanged zeolite (K-GIS) were −293, −21.4, and −25.7 ppm/K in the temperature ranges of 313–373, 373–573, and 573–773 K, respectively. The negative CTE within the temperature range of 313–373 K originated from the desorption of water from the pores of the zeolite. The CTE observed within the temperature range of 313–373 K was caused by the deformation of the crystal structure. These mechanisms were investigated via crystal structural analysis by Rietveld refinement, which indicated that the initial shrinkage was due to the relaxation of tetrahedral distortion coupled with water desorption. The large and consistent thermal shrinkage (approximately −58.3 ppm/K) of K-GIS over a wide temperature range (313–773 K) indicates its potential as a promising candidate for practical negative expansion applications. The study provides insights into improving the CTE by modifying the zeolite structure.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131936"},"PeriodicalIF":4.7,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The textures, shearing performance, and specific strengthening mechanism of the composite joints with heterogeneous phase aging at 600 °C","authors":"Hu Zhang ,&nbsp;Linjie Wen ,&nbsp;Xiaoyan Li","doi":"10.1016/j.matchemphys.2025.131951","DOIUrl":"10.1016/j.matchemphys.2025.131951","url":null,"abstract":"<div><div>At present, there is a lack of sufficient packaging materials that can be used at high temperatures to match the third generation of semiconductors to serve at high temperatures. With the advantage of high melting points (676 °C) and outstanding mechanical properties, Cu₃Sn is expected to be widely used in electronic packaging. Our research puts the prepared full Cu₃Sn joints with transient liquid phase (TLP) processing at a high temperature of 600 °C for aging. The results indicated that the joint at various aging times consisted of various microstructures, which both changed the strength and ductility for the composite joint. In our findings, the phase transition experienced Cu₃Sn–Cu₂₀Sn₆–Cu₂₀Sn₆&amp;α(Cu)–Cu_13.7Sn. With the increase of aging time, the textures for the various microstructures transitioned with the lattice distortion during thermal stress and phase transition. The Cu₂₀Sn₆ phase and α(Cu) phase formed a certain SN relationship coherent interfaces of (0001)_Cu20Sn6//(111)_α(Cu) and (10-10)_Cu20Sn6//(110)_α(Cu) caused by recrystallization. Besides, basic mechanical properties of various phases were achieved from the nanoindentation; the Cu₂₀Sn₆ phase held the highest hardness with 8.39 GPa, while the Cu_13.7Sn phase got the lowest with 3.5 GPa. Cu₃Sn and Cu_13.7Sn had higher creep resistances than other IMCs, with stress-strain indices being 66 and 88, respectively. Notably, the shear strengths for the aged joints first increased until the largest for Cu₂₀Sn₆&amp;α(Cu) (80.59 MPa) joint and then gradually decreased with the increase of the Cu_13.7Sn. The strengthening mechanism for the aged joints comprising distinct phases relies on the formation of strengthened phase and interface-dominated dispersion and precipitation strengthening in the Cu₂₀Sn₆&amp;α(Cu). Analysis of the fracture morphology and shearing path implied that the fracture mechanism for the joints aging at 600 °C transited from brittle fracture to ductile fracture, except that the period of softened grains was dramatically recrystallized. With the formation of “soft-hard-soft” model in the microstructure, the soft phase would yield the strain-hardening and discontinuous yielding, which both preserved the strength and ductility for the composite joints. These results proved that full Cu₃Sn joints had enough strength to be used in the high-temperature service and had better performance after experiencing the high-temperature treatment to form the optimal soft/hard phase satisfying the requirements for the strength-ductility of the soldering material.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131951"},"PeriodicalIF":4.7,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating the effect of bias voltage on corrosion resistance and conductivity of CrN coating in simulated PEMFC environment","authors":"Qiang Chen ,&nbsp;Qiong Zhou ,&nbsp;Dandan Liang ,&nbsp;Ergeng Zhang ,&nbsp;Mingxu Su","doi":"10.1016/j.matchemphys.2025.131953","DOIUrl":"10.1016/j.matchemphys.2025.131953","url":null,"abstract":"<div><div>CrN coatings were successfully deposited on 316 L stainless steel and silicon wafer using the cathodic arc technique by tailoring the bias voltage. The effect of bias voltage on the microstructure and corrosion resistance of CrN coatings in simulated proton exchange membrane fuel cell (PEMFC) environment was investigated in detail. The results show that the improved bias voltage favors the increased coating compactness with decreased columnar structure and surface roughness. Meanwhile, high bias voltage contributes to the growth of CrN along (220) with low strain energy. However, high bias voltage leads to decreased adhesion strength caused by increased residual stress. CrN-150 performs the highest <em>E</em>_{<em>corr</em>} (0.104 V_SCE), lowest <em>i</em>_{<em>corr</em>} (3.37 × 10⁻⁸ A cm⁻²), and largest <em>R</em>_<em>ct</em> (1.13 × 10⁷ Ω cm²), demonstrating that CrN-150 has superior corrosion resistance compared to others in both kinetics and thermodynamics. This is simultaneously triggered by the reduced penetration path and decreased contact region of the electrolyte owing to the high density and smooth surface of CrN-150. Moreover, CrN-150 possesses the lowest interfacial contact resistance (ICR) before and after PSP tests, which is attributed to the special structure and excellent corrosion resistance. In conclusion, this work provides a reference for the performance regulation of CrN coating applied to bipolar plates of PEMFC.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131953"},"PeriodicalIF":4.7,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing drug delivery efficiency on an abdominal aortic aneurysm: A study on quantum dot particle interactions and prediction using artificial Intelligence","authors":"Sepehr Behrouzifar ,&nbsp;Sina Ebrahimi ,&nbsp;Iman Mirafzal ,&nbsp;Amir Shamloo,&nbsp;Fazel Mehraein","doi":"10.1016/j.matchemphys.2025.131957","DOIUrl":"10.1016/j.matchemphys.2025.131957","url":null,"abstract":"<div><div>Targeted drug delivery to abnormal vascular regions such as abdominal aortic aneurysms (AAA) remains a clinical challenge. In this study, we explore the potential use of quantum dot (QD) particles as drug carriers for occluded or stenosed vascular regions. Quantum dot (QD) particles are utilized to deliver drugs to occluded or stenosed vascular regions of the vessels. Recently, studies have highlighted the importance of the physical and optical attributes of quantum dot particles in drug delivery. These properties enable real-time imaging, tracking, and monitoring of nanoparticle trajectories during vascular drug delivery. Moreover, their tunable size allows for optimal drug loading and precise navigation toward targeted vascular sites, improving localization and minimizing systemic side effects. In this research, we investigate quantum dots' physical properties and utilize magnetic force to enhance the efficiency of drug delivery procedures. We evaluate the performance of QDs by quantifying their interactions with the AAA luminal surface and tracking the proportion of particles exiting the aortic bifurcation downstream. Our results indicate that particle–wall interactions increase significantly with higher particle density and diameter, and are further enhanced under magnetic fields—with a maximum increase of 149 % in wall collisions for 160 nm QDs at 5810 kg/m³. Finally, a predictive application based on the Random Forest algorithm—achieving a mean absolute error of only 1.54 %—was developed to estimate QD-target interaction rates based on particle size and density.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131957"},"PeriodicalIF":4.7,"publicationDate":"2025-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145787429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}