Journal of Materials Science最新文献

{"title":"Tunable multi-configuration hydrophobicity and anti-icing performance on additively manufactured nickel-based superalloys","authors":"Jia Bai,&nbsp;Yizhou Shen,&nbsp;Weixin Zhu,&nbsp;Ying Pan,&nbsp;Pin Gao,&nbsp;Tianzi Wang,&nbsp;Naiming Xie","doi":"10.1007/s10853-025-11493-2","DOIUrl":"10.1007/s10853-025-11493-2","url":null,"abstract":"<div><p>Icing accumulation poses severe threats, urgently necessitating the development of passive anti-icing technology based on micro-nanostructural design without adding components. From a microstructure design perspective, this study elucidates the mechanisms by which hydrophobic configurations regulate anti-icing performance. Using GH3536 Ni-based superalloy as substrate, we constructed three controllable hydrophobic configurations via laser texturing combined with electropolishing and fluorination. This approach revealed the synergistic mechanism between configuration-dependent wettability regulation and anti-icing performance. Key findings: (1) Configuration characteristics and advantages: Configuration C exhibits optimal comprehensive performance under ambient pressure; Configuration B demonstrates superior low ice adhesion characteristics parallel to groove direction (//); Configuration A effectively prevents corrosive liquid pooling while maintaining low-turbulence flow. (2) Hydrophobicity regulation: Wettability is significantly influenced by laser parameters. Configuration C achieves maximum hydrophobicity (WCA = 162°) under specific parameters. (3) Anti-icing performance: Anti-icing behavior is coregulated by processing parameters and configurations. Configuration C attains minimal ice adhesion strength (101.9 kPa, 17% of substrate) and maximum freezing delay (35.5 s, + 65% vs. substrate). Engineering adaptation strategy: Configuration C provides optimal passive anti-icing solutions for ambient pressure environments (e.g., meteorological monitoring equipment). Configuration B demonstrates application potential for high-pressure icing scenarios requiring drainage. Configuration A serves as a supplementary solution for specialized scenarios needing smooth surfaces through corrosion resistance and low-turbulence drainage. Collectively, these configurations establish a structure–function-integrated anti-icing paradigm for additively manufactured alloy components.</p><h3>Graphical abstract</h3><p>Hydrophobicity and anti-icing efficacy critically correlate with multiscale groove\u0000architecture. Three tailored configurations were fabricated in GH3536 Ni-superalloys via\u0000topography-specific nanosecond laser texturing/electropolishing with fluorination, revealing\u0000configuration-locked wettability-anti-icing regulation mechanisms.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 38","pages":"18033 - 18050"},"PeriodicalIF":3.9,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143840","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":"TA-RH regulate the growth mechanism of CsPbIBr₂ inorganic perovskite thin films for photovoltaic applications","authors":"Mingchen Xue,&nbsp;Liguo Jin,&nbsp;Junhao Xu,&nbsp;Chaoying Su,&nbsp;Xusheng Liu,&nbsp;Yaxian Fu","doi":"10.1007/s10853-025-11142-8","DOIUrl":"10.1007/s10853-025-11142-8","url":null,"abstract":"<div><p>CsPbIBr₂ inorganic perovskite films have become one of the photovoltaic materials with great development potential due to their excellent wet thermal stability and excellent photovoltaic performance, as well as relatively simple preparation process. However, the preparation process and film-forming mechanism of CsPbIBr₂ thin films are still immature, and the films are prone to structural defects such as pinholes and grain boundaries, resulting in poor film-forming quality. Here, in this study, the controlled preparation of CsPbIBr₂ films was achieved under additive-free conditions by regulating the humidity and temperature during the film-forming process in combination with the substrate preheating treatment (SPT) strategy, and the ambient temperature–relative humidity influence on the grain growth of CsPbIBr₂₂ was systematically explored to achieve the highest film coverage at 80–90 °C, and different surface topographies were obtained under different environments, CsPbIBr₂ films with different surface morphology, crystallinity, light absorption properties, and grain size were obtained under different environments. Notably, the CsPbIBr₂ films prepared at 20 °C, RH: 10% exhibited smooth and flat surface morphology, with larger grain size and fewer grain boundaries, and the corresponding carbon-based PSC devices achieved excellent photovoltaic performance, with the Jsc: 10.98 mA/cm², Voc: 1.16 V, FF 0.55, and PCE of 6.95%.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"17093 - 17105"},"PeriodicalIF":3.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128703","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":"Balancing strength retention and quench sensitivity reduction through controlled high temperature pre-precipitation in Al–Zn–Mg–Cu alloys","authors":"Xiyu He,&nbsp;Yuankang Xie,&nbsp;Chaojie Liang,&nbsp;Xiaobin Guo,&nbsp;Yizhe Wu,&nbsp;Yunlai Deng,&nbsp;Yunqiang Fan","doi":"10.1007/s10853-025-11509-x","DOIUrl":"10.1007/s10853-025-11509-x","url":null,"abstract":"<div><p>Reducing the quench sensitivity of Al–Zn–Mg–Cu alloys while maintaining high strength remains a key challenge. In this study, balancing strength retention with quench sensitivity reduction is primarily achieved by regulating the microstructure through a high-temperature pre-precipitation (HTPP) treatment. The results reveal that the HTPP treatment promotes the pre-precipitation of the fine η phase at grain boundaries, which affects the precipitation behaviors of both age-precipitated and quench-induced phases. The increased pre-precipitated η phase primarily influences the distribution of age-precipitated η phases at grain boundaries rather than the intragranular age-precipitated η' phases, resulting in only marginal strength variations with prolonged HTPP time. Thermodynamically, the pre-precipitated η phase transforms the matrix composition from a high to a low quench-sensitive state. Kinetically, the formation of the pre-precipitated η phase reduces the nucleation rate of the quench-induced η phase, effectively suppressing coarse quench-induced η phase formation at boundaries. Consequently, HTPP significantly mitigates quench-induced hardness loss energy, reducing quench sensitivity. Excessively prolonged HTPP time has no significant effect on lowering the quench sensitivity. The optimal HTPP treatment involves a holding time of 1.5 h at 450 °C to balance strength retention and quench sensitivity reduction of Al–Zn–Mg–Cu alloys.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 38","pages":"18088 - 18112"},"PeriodicalIF":3.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143552","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":"Zn–Bi–Sn ternary alloy builds a three-dimensional skeleton to realize high-performance zinc–air batteries","authors":"Y. Wang,&nbsp;D. Y. Meng,&nbsp;L. L. Sun,&nbsp;Y. C. Li","doi":"10.1007/s10853-025-10777-x","DOIUrl":"10.1007/s10853-025-10777-x","url":null,"abstract":"<div><p>Zinc–air batteries are renowned for their high specific energy density and cost-effectiveness, offering a promising solution to environmental pollution and the depletion of fossil fuels. However, the performance of these batteries is often compromised by the formation of zinc dendrites during the anode dissolution process, which leads to reduced capacity and diminished cycling stability. To address these issues, this study introduces a novel Zn–Bi–Sn alloy anode, fabricated using a melting technique, designed to enhance both the discharge capacity retention and the cycling stability of zinc–air batteries. The experimental results reveal that during the discharge process, the surface of the fabricated anode evolves into a three-dimensional skeleton structure. This transformation promotes the unobstructed release of zinc and significantly improves the discharge capacity retention and cycling stability of the batteries. The optimized Zn–Bi3–Sn2 alloy anode demonstrates superior performance, achieving a lower potential difference of 0.9 V, a higher specific capacity density of 756 mAh g⁻¹, and an extended cycle life of over 1100 cycles after 550 h of operation at a current density of 5 mA cm⁻², compared to pure zinc anodes. This study proposes a straightforward and cost-effective method for stabilizing zinc anodes, demonstrating significant potential for the development of high-performance, zinc-based rechargeable batteries.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"17078 - 17092"},"PeriodicalIF":3.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128691","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":"Review: Research progress on the impact protection effect of shear thickening materials under dynamic loading","authors":"Jiansheng Wang,&nbsp;Bin Feng,&nbsp;Zekun Wang,&nbsp;Mingjin Cao,&nbsp;Li Chen","doi":"10.1007/s10853-025-11472-7","DOIUrl":"10.1007/s10853-025-11472-7","url":null,"abstract":"<div><p>With the continuous advancement of impact protection technology, the development of protective equipment increasingly aims to achieve both high performance and lightweight design. Shear thickening materials possess advantageous properties, including low density, excellent adaptive response, and superior energy absorption capacity, and have been successfully applied in civilian protective gear and military body armor. Consequently, research on the application of these materials in the field of impact protection continues to expand. The two most prevalent types of these materials are shear thickening fluids and shear stiffening gels. Although extensive research exists on both, a comprehensive review that integrates their material mechanisms, mechanical properties, and applications in impact protection remains notably absent. To promote further research on shear thickening materials, this paper presents a systematic and critical review of prior studies. This review first introduces shear thickening fluids and shear stiffening gels—the two mainstream classes of shear thickening materials—and elucidates their respective thickening mechanisms. Subsequently, it summarizes the mechanical properties and influencing factors for both material types under intermediate and high strain rates and presents a consolidated analysis of relevant numerical constitutive models. Building on a thorough understanding of their mechanisms and mechanical performance, this paper then focuses on reviewing the current state of applications for both materials in low-velocity impact protection, ballistic penetration, and blast mitigation. Finally, it concludes by summarizing the limitations of existing research and proposes directions for future research.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 38","pages":"17371 - 17414"},"PeriodicalIF":3.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144009","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":"Optimized plasma-synthesized silicon anodes for high-performance lithium-ion batteries","authors":"Jing Peng,&nbsp;Zheng Lin,&nbsp;Yongyi Li,&nbsp;Shuaibo Zeng,&nbsp;LingZhu Yang,&nbsp;Zixing He,&nbsp;Junqi Wang,&nbsp;Jingrun Gong,&nbsp;Weiqi Chen,&nbsp;Yanfeng Ni,&nbsp;Chang Liu,&nbsp;Zhixuan Chen,&nbsp;Liangbin Xiong","doi":"10.1007/s10853-025-11483-4","DOIUrl":"10.1007/s10853-025-11483-4","url":null,"abstract":"<div><p>The exceptional lithium-ion storage capacity of silicon positions it as a promising material for high-energy–density battery systems. Our research investigates the synthesis and evaluation of three silicon-based anode materials (PF-Si: Plasma-synthesized and Fine-sieved Silicon; PC-Si: Plasma-synthesized and Coarse-sieved Silicon; MC-Si: Mechanically Crushed Silicon) for lithium-ion battery applications. PF-Si fabricated through plasma-assisted synthesis under optimized conditions and sieved to a median particle size of 30–50 nm, which demonstrates exceptional structural integrity and electrochemical behavior. Firstly, XRD and Raman analyses demonstrate that PF-Si exhibits superior crystallinity, which directly facilitates efficient lithium-ion intercalation and optimizes charge transfer kinetics. Secondly, nitrogen adsorption–desorption isotherms revealed a uniform mesoporous architecture with 3–5 nm pores, the structural advantage that enables rapid electrolyte infiltration while minimizing ionic diffusion resistance. Most notably, electrochemical evaluations highlight the PF-Si anode’s exceptional performance. It delivers a specific capacity of 1107.5 mAh/g at 0.1 A/g, sustains 100.57% Coulombic efficiency over 75 cycles, and retains 68.69% capacity after 75 cycles. These findings collectively underscore the transformative potential of plasma-assisted morphological engineering in silicon anode design.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 38","pages":"17769 - 17780"},"PeriodicalIF":3.9,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143541","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":"Unveiling the magnetic behavior of C3N4 2D material by defect creation, defect passivation, and transition metal adsorption","authors":"Taoufik Sakhraoui,&nbsp;František Karlický","doi":"10.1007/s10853-025-11399-z","DOIUrl":"10.1007/s10853-025-11399-z","url":null,"abstract":"<div><p>Using the density functional tight binding method (DFTB) and the GFN1-xTB (geometries, frequencies, and noncovalent interactions tight binding) Hamiltonian, we have investigated the structural, electronic, and magnetic properties of vacancy defects, hydrogen- and oxygen-passivated defects, and Fe adsorption in two-dimensional (2D) graphitic carbon nitride (gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span>) 2D material. The ring shape is the most preferred vacancy evolution path, with significant stability of the semicircle fourfold C-N-C-N vacancy. We found that bare gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span> which is nonmagnetic becomes magnetic by 2- and 5-defect creation, hydrogen/oxygen passivation of the defects, and upon Fe adsorption. Interestingly, Fe atoms interact with the gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span> sheet and result in a ground ferromagnetic (FM) state. In addition, we investigate the effects of passivating the vacancies by hydrogen in gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span> on its structural, electrical, and magnetic properties. We found that substituting the 1-, 2-, and 3-vacancies with hydrogen and passivating the 6-defect with oxygen turn on magnetism in the system. Due to structural distortion, the passivated defects do not have a well-ordered magnetic orientation. However, passivating the remaining defected structures maintains the nonmagnetic state. It is also shown that passivation leads to a semiconductor with a band gap value higher than that of the bare material. We also calculate the electronic and magnetic properties of transition metal (TM) atoms, including V-, Cr-, Mn-, Fe-, Co-, Ni-adsorbed gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span> monolayer. All TM atoms show slight lattice distortion, and the adsorbed system almost maintains the original structure type. Moreover, a FM alignment was observed with total magnetic moments of 2.89 <span>(mu _{textrm{B}})</span>, 2 <span>(mu _{textrm{B}})</span>, and 1 <span>(mu _{textrm{B}})</span> for V, Fe, and Co atoms, respectively. The Cr, Mn, and Ni atoms induce no magnetism to the nonmagnetic gt-<span>(hbox {C}_{textrm{3}})</span> <span>(hbox {N}_{textrm{4}})</span> system.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"16984 - 17000"},"PeriodicalIF":3.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128562","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 generation of highly active sites by chemical vapor deposition of C2H4 over the LaMn0.7Co0.3O3 perovskite for the oxygen reduction reaction","authors":"Jhony Xavier Flores-Lasluisa,&nbsp;Bryan Carré,&nbsp;Joachim Caucheteux,&nbsp;Alexandre F. Léonard,&nbsp;Nathalie Job","doi":"10.1007/s10853-025-11435-y","DOIUrl":"10.1007/s10853-025-11435-y","url":null,"abstract":"<div><p>The LaMn_0.7Co_0.3O₃ perovskite was used as a substrate to deposit carbon via Chemical Vapor Deposition (CVD) to form composites active for the oxygen reduction reaction (ORR). The presence of carbon material is important to improve the electrical conductivity of the metal oxide. The composites were characterized by different physicochemical methods. During the CVD process and regardless of the time of carbon deposition, the perovskite structure is decomposed into other crystallite structures including MnO, Co, La₂O₃ and La(OH)₃. In addition, carbon nanotubes are formed over the metal oxides due to the presence of cobalt in the perovskite, especially after 20 min of CVD carbon deposition. The electrocatalytic activity towards ORR was assessed using a rotating ring-disk electrode in an alkaline liquid medium. The strong interactions between the carbon material and the metal-based compounds through C–O–M covalent bonds, which are highly active sites for ORR, considerably improve the catalytic performance. Moreover, new crystal phases are formed, which lead to the formation of the MnO/Co heterointerfaces that are also important sites for ORR. However, it was demonstrated that the presence of lanthanum-based compounds limits the number of active sites available for the ORR due to La segregation on the surface of the samples. Finally, the presence of carbon defects in the carbon nanotubes, especially the edge sites, can also produce a synergistic effect with the other active sites, enhancing the overall ORR reaction.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"16825 - 16847"},"PeriodicalIF":3.9,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128557","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 antimicrobial and cellular proliferative potentials of some bioactive and biocompatible copper-containing glasses","authors":"L. E. Olar,&nbsp;L. Bolunduț,&nbsp;M. Suciu,&nbsp;K. Magyari,&nbsp;L. Baia,&nbsp;M. Baia,&nbsp;A. Popa,&nbsp;M. Șenilă,&nbsp;E. Culea,&nbsp;R. Stefan","doi":"10.1007/s10853-025-11406-3","DOIUrl":"10.1007/s10853-025-11406-3","url":null,"abstract":"<div><p>The bioactive glass system <i>x</i>CuO∙(100-<i>x</i>)[10B₂O₃∙30Na₂O∙60P₂O₅], where <i>x</i> = 0; 0.5; 1; 2; 4; 8; and 16 mol%, was prepared through the melt quenching method. Our aim was to assess the bioactivity, biocompatibility, antibacterial properties, and the action on cells in order to find a biomaterial that can be further used to repair damaged skin tissues. The glass structure was investigated through different spectroscopic techniques: Fourier transform infrared (FT-IR), ultraviolet–visible (UV–Vis), electron paramagnetic resonance (EPR), and energy dispersion spectroscopy (EDS). Also, the ionic release in liquids was assessed by inductively coupled plasma optical emission spectroscopy (ICP-OES). Additionally, the biological behavior was evaluated through antibacterial and cytotoxicity assays. With the addition of copper to the glass samples, the structure of these is affected as indicated by FT-IR spectra changes. The UV–Vis data reveal the presence of copper in both oxidation states. The EPR spectra show that all samples doped with CuO exhibit absorptions characteristic for Cu²⁺ ions, located at sites with an axially distorted octahedral symmetry. The antibacterial effect of the glass samples with the highest concentrations of copper ions (i.e., 8 and 16 mol% CuO) was found to be the most efficient against both <i>S. aureus</i> and <i>E. coli</i> strains. The increase in the β-sheet amount in bovine serum albumin (BSA) and the decrease of its helical structure suggest the unfolding of protein after its attachment to the glass sample and further, confirms the biocompatibility of the system. The cell viability test shows that the use of a lower concentration of glass (i.e., 0.005 and 0.05 mg/dl) and a reduced number of copper cations stimulate the rate of keratinocyte cell proliferation in vitro. All obtained results prove that the investigated samples are biomaterials to be used in vitro in both hard and soft cell tissue repair and/or regeneration.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"16752 - 16767"},"PeriodicalIF":3.9,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10853-025-11406-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"pNIPAM/Alginate ferrogels as soft actuators for the thermoresponsive release of organic probes under high-frequency alternating magnetic fields","authors":"Denisse Jara,&nbsp;Roxana Coppola,&nbsp;Pedro Mendoza-Zélis,&nbsp;Gabriel Omar Ybarra,&nbsp;Pablo Tancredi","doi":"10.1007/s10853-025-11382-8","DOIUrl":"10.1007/s10853-025-11382-8","url":null,"abstract":"<div><p>Poly(N-isopropylacrylamide) (pNIPAM)-based ferrogels are promising materials for remote-controlled release applications as they combine the thermoresponsive deswelling ability of pNIPAM with the magnetic heating capacity of magnetic nanoparticles. A key challenge in developing such systems is understanding how these ferrogels interact with potential drugs or analogous molecules to create effective delivery systems with controlled release profiles. In this study, we prepared and characterized a thermosensitive ferrogel composed of pNIPAm/Alginate and magnetic nanoparticles, and we investigated the release profile of two probe molecules via remote magnetic activation. Using methylene blue (cationic) and methyl orange (anionic) as model substances, we found that the absorption behavior of the ferrogel toward each molecule depends significantly on its electrical charge, with electrostatic interactions between the alginate and the probes being the main cause for these differences. We confirmed that the ferrogels deswell to nearly 15% of their original size after experiencing an increase in temperature, either in a heated bath or under the influence of an alternating magnetic field. In both cases, the deswelling process was accompanied by the release of the loaded molecules. The release profiles were similar for both heating methods and were influenced by the initial amount of the substance adsorbed by the gel. For the cationic substance, modifying the pH of the medium improved the release profile. These results highlight the potential of these ferrogels as stimuli-responsive systems for remote-controlled release applications.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"17025 - 17037"},"PeriodicalIF":3.9,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145128643","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}