Bulletin of Materials Science最新文献

Tunable exchange-bias and magnetic compensation temperature of two-phase spinel composites (1 − x) (Co3O4) + x (Co2TiO4) 两相尖晶石复合材料（1−x） (Co3O4) + x （Co2TiO4）的可调交换偏置和磁补偿温度

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-05-07 DOI: 10.1007/s12034-026-03605-8

S Nayak, D Hazra, Vaskuri C S Theja, P K Roy, V Karthikeyan, S Thota

{"title":"Tunable exchange-bias and magnetic compensation temperature of two-phase spinel composites (1 − x) (Co3O4) + x (Co2TiO4)","authors":"S Nayak, D Hazra, Vaskuri C S Theja, P K Roy, V Karthikeyan, S Thota","doi":"10.1007/s12034-026-03605-8","DOIUrl":"10.1007/s12034-026-03605-8","url":null,"abstract":"<div>We report a detailed compositional dependence of magnetic interactions in (1 − x) (Co3O4) + x (Co2TiO4) [0 ≤ x (wt.%) ≤ 100] two-phase oxide spinels. Variation of ferrimagnetic Néel temperature (TN) was observed within 53.5–47.4 K by varying the composition from x = 0.23 to 1.0. For T < TN, the temperature dependence of dc susceptibilities curves (χ(T) vs T) in both zero-field-cooled (ZFC) and field-cooled (FC) measurements exhibited the magnetic-compensation (TCOMP) phenomena due to the complete magnetization balance of tetrahedral and octahedral sublattices. Further, we noticed a gradual decrease in TCOMP from 37.71 K to 31.74 K with increasing x. A high value of coercivity HC (~19 kOe for x = 0.23) and exchange bias HEB (≈ 887 Oe for x = 1.0) was observed below TN, which can be tuned with x. The plausible origins of the large HC and HEB and the associated magnetic interactions are presented.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147830044","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}

引用次数: 0

Enhanced thermoelectric performance of g-C3N4/Bi2Te3 nanocomposites through simultaneous modulation of electronic and thermal carrier transport 通过同时调制电子和热载流子输运增强g-C3N4/Bi2Te3纳米复合材料的热电性能

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-05-06 DOI: 10.1007/s12034-026-03586-8

P Shyni, P P Pradyumnan, P Rajasekar, Aswathy M Narayanan, Arun M Umarji

{"title":"Enhanced thermoelectric performance of g-C3N4/Bi2Te3 nanocomposites through simultaneous modulation of electronic and thermal carrier transport","authors":"P Shyni, P P Pradyumnan, P Rajasekar, Aswathy M Narayanan, Arun M Umarji","doi":"10.1007/s12034-026-03586-8","DOIUrl":"10.1007/s12034-026-03586-8","url":null,"abstract":"<div>Here, we report the inclusion of graphitic carbon nitride (g-C3N4) in bulk nanostructured bismuth telluride (Bi2Te3). The Bi2Te3-based g-C3N4 nanocomposites were synthesized through a scalable and cost-effective powder processing technique, and their thermoelectric properties were tuned by regulating the wt% of g-C3N4 in the Bi2Te3 matrix. The incoherent interfaces formed between g-C3N4 nanosheets and Bi2Te3 grains act as a potential barrier to induce a carrier filtering effect, which substantially changes the electrical transport properties of the material. We obtained a tripled power factor of 3.1 mW m–1 K–2 for the BT0.5CN sample (Bi2Te3 + 0.5 wt% g-C3N4) compared to that of pristine Bi2Te3. The observed reduction in thermal conductivity can be ascribed to the enhanced scattering of phonons at increased boundaries of nano grains and at the incoherent interfaces introduced by added g-C3N4. With synergistic optimization of power factor and suppressed thermal conductivity, ZT culminates in a peak value of 0.57 for the sample BT0.5CN at 450 K.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829567","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}

引用次数: 0

EuB2O4: Potential magnetic refrigeration material EuB2O4：势磁致冷材料

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-05-06 DOI: 10.1007/s12034-026-03610-x

Changming Liu, Fangyuan Zhang, Hang Shentu, Xiukun Hu, Qiong Wu, Minxiang Pan, Jieyang Fang, Hangfu Yang, Hongliang Ge

{"title":"EuB2O4: Potential magnetic refrigeration material","authors":"Changming Liu, Fangyuan Zhang, Hang Shentu, Xiukun Hu, Qiong Wu, Minxiang Pan, Jieyang Fang, Hangfu Yang, Hongliang Ge","doi":"10.1007/s12034-026-03610-x","DOIUrl":"10.1007/s12034-026-03610-x","url":null,"abstract":"<div>Magnetic refrigeration is an environmentally friendly, energy-efficient technology that exploits the temperature change of a magnetic material under a changing magnetic field. Herein, we characterize the phase purity and structure of polycrystalline EuB2O4 synthesized via solid-state sintering, as well as analyze the magnetic properties and magnetocaloric effect. The studied sample exhibits a highly pure orthorhombic phase structure. The sample undergoes a transition from antiferromagnetism to paramagnetism. The relative concentrations of Eu2+ and Eu3+ ions are calculated to be 20.49% and 79.51%, respectively. The magnetic Eu2+ ions mainly determine the magnetic properties. Under magnetic fields of 2 and 5 T, the maximum values of magnetic entropy change reach 21.0 and 41.8 J kg−1 K−1, respectively. The corresponding maximum values of adiabatic temperature change are 7.1 and 22.7 K. The Arrott plot reveals a second-order phase transition in EuB2O4. The large magnetic entropy change highlights EuB2O4 as a competitive and excellent ultra-low-temperature magnetic cooling material.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829568","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}

引用次数: 0

Porous sodium alginate–organosilane nanocarrier to attenuate apoptosis in hypoxia-reoxygenation H9c2 cardiomyocytes 多孔海藻酸钠-有机硅烷纳米载体对缺氧复氧H9c2心肌细胞凋亡的抑制作用

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-05-02 DOI: 10.1007/s12034-026-03591-x

Yan Xiang, Zhenyu Cui, Tianxin Geng, Jinlong Zhao

{"title":"Porous sodium alginate–organosilane nanocarrier to attenuate apoptosis in hypoxia-reoxygenation H9c2 cardiomyocytes","authors":"Yan Xiang, Zhenyu Cui, Tianxin Geng, Jinlong Zhao","doi":"10.1007/s12034-026-03591-x","DOIUrl":"10.1007/s12034-026-03591-x","url":null,"abstract":"<div>Myocardial ischemia–reperfusion injury (MIRI) is a common pathological process following treatment for acute myocardial infarction and other cardiovascular diseases, leading to cardiomyocyte apoptosis and impaired cardiac functional recovery. Engeletin possesses anti-inflammatory, antioxidant and anti-apoptotic pharmacological activities, but its poor water solubility and low bioavailability limit clinical application. In this study, we grafted both synthetic compound 1 and a natural extract–derived compound 2 onto sodium alginate/3-aminopropyltrimethoxysilane to prepare a novel fluorescent, biocompatible composite carrier (1-DASA-2-APTMS@Engeletin). FTIR and XRD confirmed successful fabrication and drug loading, and fluorescence spectroscopy showed a quantum yield of 12.5% at an excitation wavelength of 370 nm. In vitro, a hypoxia–reoxygenation (H/R) model was established in H9c2 cardiomyocytes to assess the protective effects of 1-DASA-2-APTMS@Engeletin. The results demonstrated that this nanoparticle system increased cell viability in a concentration-dependent manner by modulating apoptosis-related gene expression and significantly enhanced Engeletin’s anti-apoptotic effect. This study validates the potential of 1-DASA-2-APTMS@Engeletin as a novel therapeutic agent for MIRI and provides key experimental groundwork for the development of cardioprotective drugs.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796746","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}

引用次数: 0

DFT-based comparative spin-orbit coupling study of orthorhombic and rocksalt phases of SnSe via GGA and TB-mBJ potentials 基于dft的SnSe正交相和岩盐相GGA和TB-mBJ势的自旋-轨道耦合比较研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03587-7

Seram Rebika Devi, B. Indrajit Sharma

{"title":"DFT-based comparative spin-orbit coupling study of orthorhombic and rocksalt phases of SnSe via GGA and TB-mBJ potentials","authors":"Seram Rebika Devi, B. Indrajit Sharma","doi":"10.1007/s12034-026-03587-7","DOIUrl":"10.1007/s12034-026-03587-7","url":null,"abstract":"<div>Tin selenide has gained significant interest due to its remarkable performance in converting energy and its highly tunable electronic and optical characteristics. The purpose of this study is to provide a theoretical investigation of the structural, electronic, elastic, optical and transport properties of SnSe in its orthorhombic and rocksalt phases employing density functional theory (DFT) within WIEN2k. Calculations are performed within the Perdew–Burke–Ernzerhof (PBE) scheme of generalized gradient approximation (GGA) and the Tran–Blaha modified Becke–Johnson (TB-mBJ) potentials excluding and including spin-orbit (SO) coupling. The measured lattice parameters are in close agreement with previously reported experimental and theoretical values. Electronic structure analysis indicates an indirect gap in its orthorhombic phase which decreases under SO coupling and a direct gap in its rocksalt phase which increases under SO coupling revealing phase-dependent band gap nature. Elastic constants calculated with IRelast confirm mechanical stability and enable derivation of additional elastic properties. SnSe in both phases exhibits strong IR–visible polarizability. In both the SO-excluded and SO-included calculations, the orthorhombic form of SnSe shows its highest absorption predominantly in the UV range whereas the rocksalt structure achieves its peak absorption from the visible into the UV region underscoring its potential for optoelectronic and solar-energy applications. The power factor per relaxation time increases with temperature for both SnSe phases, shows almost no SO effect in the rocksalt phase, displays a small SO-related enhancement in the orthorhombic phase-strongest for TB-mBJ with SO and remains higher in the orthorhombic structure highlighting its better thermoelectric efficiency.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797003","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}

引用次数: 0

Silk-based drug delivery systems: Advances, challenges, and future perspectives 丝基给药系统：进展、挑战和未来展望

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03596-6

Heybet Kerem Polat, Yasin Turanlı, Emre Tuncel, Nihat Kurt

{"title":"Silk-based drug delivery systems: Advances, challenges, and future perspectives","authors":"Heybet Kerem Polat, Yasin Turanlı, Emre Tuncel, Nihat Kurt","doi":"10.1007/s12034-026-03596-6","DOIUrl":"10.1007/s12034-026-03596-6","url":null,"abstract":"<div>The unique properties of silk, a natural protein-based biopolymer, including its high mechanical strength, chemical modifiability, biocompatibility, and biodegradability, have drawn interest in drug delivery science. Fibroin and sericin are the proteins that mainly comprise silk, which is derived chiefly from the Bombyx mori silkworm and certain spider species. The β-sheet crystallites in the silk-fibroin structure enhance the material properties, such as high strength and extensibility. Numerous drug delivery systems have been produced using silk, such as fibers, hydrogels, microparticles, nanoparticles, and liposomes. These systems have a wide range of applications, including parenteral, oral, transdermal, ocular, pulmonary, and local bone implantation. In this study, the origins, extraction methods, chemical structure, physicochemical properties, sterilization methods, and applications in drug delivery systems of silk are extensively discussed. Additionally, current studies in the literature were compiled and evaluated. While current studies are promising for the future, further comprehensive research is necessary to integrate silk-based drug delivery systems into clinical applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797034","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}

引用次数: 0

Synthesis and characterization of silane-functionalized graphene oxide in castor oil-based polyurethane for enhanced physico-mechanical properties 蓖麻油基聚氨酯中硅烷功能化氧化石墨烯的合成与表征

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03597-5

Lekharaj C Mahajan, Namita Karna, Debashis Kundu

{"title":"Synthesis and characterization of silane-functionalized graphene oxide in castor oil-based polyurethane for enhanced physico-mechanical properties","authors":"Lekharaj C Mahajan, Namita Karna, Debashis Kundu","doi":"10.1007/s12034-026-03597-5","DOIUrl":"10.1007/s12034-026-03597-5","url":null,"abstract":"<div>Polyurethane (PU) is also associated with the presence of good thermophysical characteristics and the addition of graphene oxide (GO), which is a nanomaterial with remarkable mechanical strength and electrical conductivity, to polyurethane significantly contributed to the improvement of the working capabilities of composites in the form of polyurethane-based composites. The incompatibility between GO and the PU matrix was overcome by silane functionalization of the graphene oxide with 3-glycidyloxypropyl-trimethoxysilane (GPTMS), which enhanced the dispersion of the graphene-based material throughout the polymeric matrix and increased adhesion at the interface. In this study, functionalized GO was prepared by using the silanization of GO with 3-glycidyloxypropyl-trimethoxysilane. Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray diffraction characterized the silane-functionalized graphene oxide (GGO). Next, it was introduced in castor oil-based PU (COPU) prepolymer fabricated using castor oil, 1,4-butanediol and isophorone diisocyanate. The GGO-COPU resulting nanocomposites were thoroughly characterized using Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and Raman spectroscopy to elucidate the relationship between structural modifications and enhanced thermal and material properties, providing valuable insights for the design of next-generation, eco-friendly PU-based materials for technological applications.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796947","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}

引用次数: 0

Trace detection of explosives from Langmuir–Blodgett film substrates: A SERS study Langmuir-Blodgett薄膜基质中痕量爆炸物的SERS检测研究

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03594-8

Chayan Kumar Mitra, Joydeep Chowdhury

引用次数: 0

Beyond ABX3: A holistic review on composition-dimension-interface triadic optimization for advanced lead-free perovskite optoelectronics 超越ABX3：先进无铅钙钛矿光电子元件的成分-尺寸-界面三元优化研究综述

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03599-3

Libo Fan, Jiakang Zhu, Peng Wang, Qilin Dai

{"title":"Beyond ABX3: A holistic review on composition-dimension-interface triadic optimization for advanced lead-free perovskite optoelectronics","authors":"Libo Fan, Jiakang Zhu, Peng Wang, Qilin Dai","doi":"10.1007/s12034-026-03599-3","DOIUrl":"10.1007/s12034-026-03599-3","url":null,"abstract":"<div>Inorganic lead-free halide perovskites (LFHPs) are emerging as eco-friendly alternatives to toxic Pb-based counterparts in photodetectors. This review establishes a ‘composition–dimension–interface triadic optimization framework’ to advance LFHPs. We first elucidate the stability rules of ABX3 and derivatives (e.g., A2B+B3+X6 double perovskites), emphasizing the critical role of Bi3+ lone-pair electrons in defect tolerance. Next, dimensional engineering is explored, revealing 3DOM architectures as ideal platforms for light harvesting, while 0D nanocrystals enable ultrahigh quantum yields. Innovations in transport layers, particularly SnO2 ETLs paired with Cs2AgBiBr6, achieve >180-day stability. Despite detectivities up to 1013 Jones, LFHPs lag in carrier mobility (<10 cm2 V−1 s−1) due to interfacial recombination. We propose a hierarchical roadmap: defect suppression via Rb+/Cu+ doping (short-term), scalable 2D/3D hybrid fabrication (mid-term), and perovskite/Si tandem cells (long-term). This work not only benchmarks the progress of LFHPs but also provides actionable strategies to bridge the efficiency gap with Pb-based devices.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797099","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}

引用次数: 0

Jewellery design enabled by customized 3D printing of Ag and Au–Ag–Cu alloys: process and microstructural optimization 通过定制的Ag和Au-Ag-Cu合金3D打印实现珠宝设计：工艺和微观结构优化

IF 2.1 4区材料科学

Bulletin of Materials Science Pub Date : 2026-04-29 DOI: 10.1007/s12034-026-03578-8

Lu Lin, Wenbin Qin

{"title":"Jewellery design enabled by customized 3D printing of Ag and Au–Ag–Cu alloys: process and microstructural optimization","authors":"Lu Lin, Wenbin Qin","doi":"10.1007/s12034-026-03578-8","DOIUrl":"10.1007/s12034-026-03578-8","url":null,"abstract":"<div>Additive manufacturing (AM) of silver (Ag) and Au–Ag–Cu alloys offers significant potential for jewellery and biomedical applications, yet challenges such as porosity, residual stress and corrosion susceptibility remain. This study investigates the independent and combined effects of four laser processing parameters: power (80–200 W), scan speed (600–1200 mm s−1), hatch spacing (80–120 µm) and layer thickness (20–40 µm) on microstructural evolution, mechanical behaviour and corrosion resistance in selectively laser melted noble metals. Using a full-factorial design (n = 192 builds), microstructure was analyzed via EBSD and FIB-CT, mechanical performance via nanoindentation and tensile tests, and corrosion resistance through EIS and XPS. Regression models, PCA, and Scheil–Gulliver simulations were used to interpret interactions. Key findings include reduced Ag grain size (–0.51 µm) and increased hardness (+4.12 HV) with higher laser power, while faster scan speeds increased porosity. Optimized volumetric energy density (>100,000 J mm–3), enhanced pore sphericity, and reduced porosity, while corrosion rates dropped by ~26% and charge transfer resistance increased by ~20%. These results demonstrate how careful tuning of AM parameters can enhance strength, corrosion behaviour, and structural reliability, providing a pathway toward customized, high-performance precious metal components with minimized post-processing requirements.</div>","PeriodicalId":502,"journal":{"name":"Bulletin of Materials Science","volume":"49 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797002","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}

引用次数: 0