Journal of Science: Advanced Materials and Devices最新文献

{"title":"Facile synthesis of bud-like BaTiO3/CNT composite as a high-performance microwave absorber: Significantly boosted by a tunable spacer","authors":"Sheng-Jung Tsou ,&nbsp;Pei-Jung Chang ,&nbsp;Chung-Kwei Lin ,&nbsp;Ruey-Bin Yang ,&nbsp;Artur Małolepszy ,&nbsp;Yuh-Jing Chiou","doi":"10.1016/j.jsamd.2026.101113","DOIUrl":"10.1016/j.jsamd.2026.101113","url":null,"abstract":"<div><div>Wireless technology has facilitated world development and innovation, yet overutilization has led to interference, disruption, and safety concerns in microwave applications. The high electromagnetic wave dissipation capability of a lightweight absorber highlights its strong potential for advanced absorption applications. In the present study, the bud-like BaTiO₃/CNTs (BTO/CNTs) as absorbing materials were synthesized by a sol-gel method. The characteristics of BTO/CNT hybrid powders were investigated through a series of examinations, including scanning and transmission electron microscopy, X-ray diffraction, Raman spectroscopy, etc. The electromagnetic properties were revealed by filling 10 wt% absorbing hybrid powder in epoxy resin as an absorbing composite. The best BTO content was screened by their absorption performance in various amounts from 10 to 70 wt%. The 10BTO/CNT (i.e., 10 wt% of BaTiO₃ contained) exhibited the best absorption performance, due to the good impedance matching and the strong attenuation. The 10BTO/CNT composite exhibits superior reflection loss of −39.3 dB with a thickness of 2.2 mm at 11.52 GHz, and an effective maximum absorption bandwidth (EMAB) of 5.04 GHz at 1.6 mm. Furthermore, the 10BTO/CNT composite was used as an absorbing layer in combination with an air spacer to investigate the optimal composite and spacer thickness (d_s) for enhanced absorption performance. An optimized absorbing layer thickness of 1.8 mm, combined with a spacer thickness of 0.25 mm, results in a reflection loss of −56.1 dB at 12.96 GHz. A significantly boosted absorption was achieved by introducing the optimized d_s with 10BTO/CNT absorbing composite.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101113"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188152","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":"Additively manufactured Zn–Mg alloys as orthopedic implants: effects of laser power and scanning rates","authors":"Deqing Luo ,&nbsp;Lingrong Zeng ,&nbsp;Baohui Xiao ,&nbsp;Hui Yu ,&nbsp;Qian Tan ,&nbsp;Ren Xu ,&nbsp;Ge Yang","doi":"10.1016/j.jsamd.2026.101105","DOIUrl":"10.1016/j.jsamd.2026.101105","url":null,"abstract":"<div><div>Additive manufacturing of biodegradable metals enables patient-specific orthopedic implants that can resorb in vivo and avoid removal surgery. Among candidates, Zn–Mg alloys balance Zn's limited bioactivity with Mg's rapid corrosion. The enhanced osteogenesis has been demonstrated through the additive manufacturing of Zn-Mg alloy scaffolds. However, the effects of processing parameters (laser power and scanning rates) on microstructures, mechanical properties, degradation, and osteogenesis are not systematically investigated. Here we fabricate Zn–3Mg alloys by laser powder bed fusion (L-PBF). Porosities of additively manufactured Zn-Mg alloys are decreased, achieving high yield strength (compression) over 600 MPa at a 70 W laser power and a 600 mm s⁻¹ scanning rate. Corrosion rates are reduced to ∼0.1 μm day⁻¹ by forming dense degradation products on the surface of Zn-Mg alloys. In vitro and in vivo studies show markedly improved bone regeneration compared with bioinert Ti. This benefit correlates with reduced release of Zn²⁺ and Mg²⁺, enhancing cytocompatibility and promoting osteogenic differentiation. These results clarify processing parameters–microstructures–properties–biology relationships in biodegradable Zn-based alloys and provide guidance for engineering next-generation orthopedic implants.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101105"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188151","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":"Engineered PVC ultrafiltration membranes with amine-functionalized MOFs for water treatment: A comparative study on dye removal and antibacterial performance","authors":"Amir Hossein Hamzeh ,&nbsp;Shefa Mirani Nezhad ,&nbsp;Ehsan Nazarzadeh Zare ,&nbsp;Jafar Mahmoudi ,&nbsp;Hassan Karimi-Maleh","doi":"10.1016/j.jsamd.2026.101102","DOIUrl":"10.1016/j.jsamd.2026.101102","url":null,"abstract":"<div><div>This study developed poly(vinyl chloride)(PVC)-based ultrafiltration membranes enhanced with amino-functionalized MIL-101–NH₂ (Al/Cr) metal–organic frameworks (MOFs) using the phase inversion method. The membranes were characterized by FTIR, SEM, AFM, and contact angle measurements. The incorporation of MOFs significantly improved membrane hydrophilicity, porosity (up to ∼85 %), and water uptake (nearly 80 %), with the M2 (Cr) and M2 (Al) composites showing the optimal performance balance. Incorporation of MIL-101–NH₂ noticeably improved membrane performance by increasing porosity to around 85 % and water uptake to nearly 80 %. Among the fabricated membranes, M2 (Cr) and M2 (Al) showed the most favorable balance between pore structure and hydrophilicity. As a result, these optimized membranes demonstrated a marked enhancement in pure water flux, reaching about 534.7 L m⁻² h⁻¹ for M2 (Cr) and 526.2 L m⁻² h⁻¹ for M2 (Al), compared with only 276.7 L m⁻² h⁻¹ for the pristine PVC membrane. Performance tests indicated that introducing hydrophilic –NH₂ groups and interconnected pores significantly improved pure water flux compared to pristine PVC. The optimized membranes exhibited effective removal of humic acid (≈70–80 %), methyl orange (≈29 %), and methylene blue (≈47 %) due to the combined effects of size exclusion and electrostatic interactions. They also demonstrated enhanced antifouling behavior, with flux recovery ratios (FRR) of approximately 51–52 % for the best-performing membranes, indicating improved cleaning efficiency relative to pristine PVC. Antibacterial evaluation using the Kirby–Bauer disk diffusion method revealed that MIL-101–NH₂(Al) membranes displayed broader antibacterial activity against <em>E. coli</em>, <em>S. aureus</em>, and <em>S. enteritidis</em>, whereas MIL-101–NH₂(Cr) showed selective activity mainly against <em>E. coli</em> and <em>B. subtilis</em>.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101102"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077752","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":"Preparation of silicone- bismaleimide photosensitive resin and its application in 3D printing","authors":"Huan Xie ,&nbsp;Shaoyun Chen ,&nbsp;Bo Qu ,&nbsp;Xiaoying Liu ,&nbsp;Wenjie Li ,&nbsp;Rui Wang ,&nbsp;Linxi Hou ,&nbsp;Dongxian Zhuo","doi":"10.1016/j.jsamd.2026.101099","DOIUrl":"10.1016/j.jsamd.2026.101099","url":null,"abstract":"<div><div>In recent years, light-curing 3D printing technology has been extensively adopted across various fields due to its advantages, including high precision and efficiency. As the key material in this technology, the properties of photosensitive resin directly influence the mechanical strength, thermal stability, and functional characteristics of the printed parts. Bismaleimide (BMI) resin exhibits excellent heat resistance, dielectric properties, and mechanical strength. However, its inherent brittleness and poor processability have limited its application in 3D printing. To address these challenges, this study synthesized a BAG oligomer containing flexible siloxane segments and photosensitive groups via a Michael addition reaction. This oligomer was incorporated into a photosensitive resin system to develop a novel BMI resin tailored for light-curing 3D printing. The effects of varying BAG content on the resin's rheological behavior, 3D printing compatibility, mechanical performance, thermal stability, dynamic thermomechanical properties, water absorption, and dielectric characteristics were systematically investigated. The results demonstrated that at a BAG oligomer content of 10 wt%, the resin achieved optimal overall performance, with tensile strength and flexural strength reaching 56.9 MPa and 148.8 MPa, respectively. Additionally, impact strength increased continuously with higher BAG content, peaking at 11.5 kJ/m². The maximum decomposition temperature (T_max) rose to 421.4 °C, accompanied by a notable increase in char residue. Dynamic mechanical analysis indicated an increase in storage modulus to 1704.5 MPa and cross-linking density, although the glass transition temperature (T_g) experienced a slight decline. While the addition of BAG marginally elevated the dielectric constant (D_k), it significantly reduced dielectric loss (D_f) to 0.010, underscoring favorable dielectric properties. In summary, this work develops and validates a BMI-based photosensitive resin that simultaneously meets the critical requirements for printability, mechanical performance, thermal stability, and dielectric properties, presenting a formulation with practical potential for broadening the use of BMI in light-curing 3D printing.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101099"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034362","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":"Polyvinylpyrrolidone planarized liquid crystalline 1T-WS2/rGO hybrid nanocomposites-based humidity sensing platform","authors":"A. Vasil’ev ,&nbsp;M. Zhezhu ,&nbsp;S. Gyozalyan ,&nbsp;L. Avanesyan ,&nbsp;Y. Grigoryan ,&nbsp;A.A. Kuzanyan ,&nbsp;A.A. Hovhannisyan ,&nbsp;Mohamed Aly Saad Aly ,&nbsp;D.A. Ghazaryan ,&nbsp;H. Gharagulyan","doi":"10.1016/j.jsamd.2026.101115","DOIUrl":"10.1016/j.jsamd.2026.101115","url":null,"abstract":"<div><div>Two-dimensional hybrid nanocomposites combining graphene-like materials and transition metal dichalcogenides (TMDCs) are created using various synthesis methods and are vital for environmental sensing due to the synergistic effects of their components. These hybrid materials offer enhanced sensitivity, selectivity, surface-to-volume ratio, tunable electronic properties, strong interaction with analytes, and fast detection capabilities, which address the limitations of individual materials. This is due to their outstanding surface-to-volume ratio, tunable electronic properties, strong interactions with analytes, as well as their high sensitivity, selectivity, and fast detection capabilities, which are crucial for environmental sensing. Herein, a hydrothermally synthesized and polyvinylpyrrolidone (PVP)-stabilized 1T phase tungsten disulfide/reduced graphene oxide, 1T-WS₂/PVP/rGO, hybrid nanocomposite is reported. The intrinsic liquid crystalline behavior of the synthesized composite enables the formation of highly uniform films for effective humidity sensing. The optostructural characterization and key performance parameters, including response and recovery times, of the 1T-WS₂/PVP/rGO hybrid nanocomposite-based structure are comprehensively analyzed and studied. This is the first to report on the synthesis of a 1T-WS₂/PVP/rGO hybrid nanocomposite, its liquid crystalline phase formation, and application in humidity sensing. The proposed sensing platform introduces a novel approach to humidity sensing using 1T-WS₂/PVP/rGO liquid crystalline films, which combine the metallic advantages of 1T-WS₂, the stabilizing role of PVP and the conductive framework of rGO into aligned LC structures for enhanced sensitivity, rapid response and environmental robustness.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101115"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188149","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":"Design and performance evaluation of a multi-band metamaterial absorber for oil quality sensing","authors":"Ahmed Alzamil ,&nbsp;Muhammad Amir Khalil ,&nbsp;Wong Hin Yong ,&nbsp;Abdulmajeed M. Alenezi ,&nbsp;Mohamad A. Alawad ,&nbsp;Abdulwadoud A. Maash ,&nbsp;Mohamed S. Soliman ,&nbsp;Riaz Hussain ,&nbsp;Mohammad Tariqul Islam","doi":"10.1016/j.jsamd.2025.101081","DOIUrl":"10.1016/j.jsamd.2025.101081","url":null,"abstract":"<div><div>This study presents a highly efficient metamaterial (MTM) absorber designed for precise sensing applications, particularly for distinguishing edible oils based on their dielectric properties. Utilising a compact maze-shaped structure comprising a copper resonator and a Rogers 5880 substrate, the absorber achieves near-perfect (&gt; 99 %) absorption efficiency across the 2–5 GHz frequency range. The absorber's geometric parameters were investigated in detail, revealing significant improvements in multi-band performance and resonance tuning with incremental increases in the resonator's complexity. Comprehensive simulations conducted using CST Microwave Studio and validated through equivalent circuit modelling demonstrated strong agreement, establishing a robust design methodology. Experimental verification confirmed the absorber's sensitivity, demonstrating clear differentiation among mustard, coconut, and sunflower oils through distinct resonance-frequency shifts attributable to their dielectric constants. The sensor achieved an exceptional quality factor (Q = 170), high sensitivity (0.85 GHz per dielectric unit), and superior absorption performance, positioning it as a promising candidate for industrial applications in quality control and food safety.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101081"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880865","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":"Nanoscale optical-regime metamaterial absorber for enhanced photon absorption in thermal emitters","authors":"Azim Sharkar ,&nbsp;Md. Moniruzzaman ,&nbsp;N.H.M.A. Azim ,&nbsp;Mahjabin Mobarak ,&nbsp;Mohamad A. Alawad ,&nbsp;Abdulmajeed M. Alenezi ,&nbsp;Abdullah Al Mahfazur Rahman ,&nbsp;Mohammad Tariqul Islam","doi":"10.1016/j.jsamd.2025.101078","DOIUrl":"10.1016/j.jsamd.2025.101078","url":null,"abstract":"<div><div>This article introduces a nanoscale metamaterial absorber (MMA) with significant photon absorption characteristics for incorporating in thermal emitters intended for solar energy harvesting from the visible spectrum in the optical frequency regime. The proposed MMA unit cell has an electrical dimension of 0.13 <span><math><mrow><mi>λ</mi></mrow></math></span> × 0.13 <span><math><mrow><mi>λ</mi></mrow></math></span> × 0.07 <span><math><mrow><mi>λ</mi></mrow></math></span>, where <span><math><mrow><mi>λ</mi></mrow></math></span> represents the maximum wavelength of the visible spectrum. It comprises a quartz (fused) substrate, a tungsten resonator layer, and a gold backplane. The computational model of the absorber is created utilizing CST Microwave Studio. The proposed MMA can produce an average absorption of 91.27% within the visible wavelength spectrum (375–750 nm), featuring dual absorption maxima of 94.37% and 99.81% at 428.81 nm and 657.89 nm, respectively. The performance of the MMA is further verified through high-frequency simulation software (HFSS) that provides an average absorption of 93.04%, indicating the accuracy of the design. The comprehensive parametric studies are accomplished, and absorption phenomena are analyzed through the current and field distribution. The absorber exhibits an almost zero polarization conversion ratio (PCR) with a maximum of 5.6 × 10⁻⁵. Moreover, the absorption spectra are stable for variation in polarization and incident angle up to 90° for transverse electric (TE) and transverse magnetic (TM) modes. The design attains a maximum solar irradiance efficiency of 92.18% facilitating effective photon conversion and reflection reduction. Additionally, a comparison of the presented MMA is made with some recent works, revealing that some other works provide higher absorption bandwidth but expose limited angular stability (≤70°), lower solar irradiance efficiency, and higher dimensions. But the proposed absorber overcomes these constraints by optimizing structural parameters and ensuring wide-band absorption, high incident and polarization angle stability, improved photon conversion efficiency within a compact dimension. Due to its compact dimension, stable absorption performance, and high solar irradiance efficiency, this new MMA can be utilized in thermal emitters for solar energy harvesting applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"11 1","pages":"Article 101078"},"PeriodicalIF":6.8,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880924","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":"Tailoring porosity and antibacterial activity in MgO/ZrO2-modified kaolin ceramics for use in wastewater filtration systems","authors":"Dikra Bouras ,&nbsp;Mamoun Fellah ,&nbsp;Billel Salhi ,&nbsp;Nestor Ankah ,&nbsp;Neçar Merah","doi":"10.1016/j.jsamd.2025.100974","DOIUrl":"10.1016/j.jsamd.2025.100974","url":null,"abstract":"<div><div>The advancement of natural ceramic materials with multifunctional properties is essential for promoting sustainable solutions in wastewater treatment and microbial control. This study examines kaolinite-based ceramics from Algerian DjebelDebbagh clay (DD2) modified with magnesium oxide (MgO) at concentrations of 0, 40, and 80 wt%, both with and without the addition of 38 wt% zirconium dioxide (ZrO₂) (DD2Z), to evaluate their structural, adsorptive, and antibacterial properties. Ceramic composites were synthesized through high-temperature sintering and characterized using X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDS), Brunauer-Emmett-Teller (BET) surface area analysis, thermogravimetric analysis (TGA) and atomic force microscopy analysis (AFM). Phase analysis indicated the development of mullite, spinel, zircon, and magnesium silicate phases, which progressed with higher MgO content. The incorporation of ZrO₂ enhanced mesoporosity and surface area, whereas MgO improved permeability and facilitated bacterial inactivation. The antibacterial activity against Pseudomonas putida was assessed through immersion and agar diffusion methods, revealing that the DD2Z + 80 wt% MgO sample demonstrated the highest inhibition rate of 75 % and the largest inhibition zone measuring 12.5 mm. Liquid diffusion tests confirmed enhanced wettability and pore connectivity in the ZrO₂-MgO systems. The findings indicate that MgO- and ZrO₂-modified natural kaolinite ceramics may serve as cost-effective, durable, and antibacterial materials suitable for integrated wastewater treatment applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 4","pages":"Article 100974"},"PeriodicalIF":6.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893457","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":"Impact of high BaO content on tuning the structural, optical and radiation shielding properties of multicomponent borate glasses","authors":"Abeer S. Altowyan ,&nbsp;M.I. Sayyed ,&nbsp;Ashok Kumar","doi":"10.1016/j.jsamd.2025.101011","DOIUrl":"10.1016/j.jsamd.2025.101011","url":null,"abstract":"<div><div>The impact of increasing BaO concentration on the B₂O₃-CaO-ZnO-BaO-Er₂O₃ glass samples' properties has been examined. The increase in density and molar volume is observed. FTIR analysis reveals the disruption of borate units and the creation of NBOs with BaO content. The band gap energy (E_g) decreases from 3.028 to 2.882 eV. BaO addition increases the dielectric constant and the refractive index. The radiation shielding properties were investigated from 0.015 to 15 MeV. The BaE4 sample has the highest linear attenuation coefficient (LAC) and effective atomic number (Z_eff). The maximum Z_eff is found at 0.015 MeV, ranging from 41.54 to 43.85. The BaE4 sample possesses the lowest MFP at all selected energy levels. The comparison with other glass systems confirms the suitability of the BaE4 sample for gamma ray shielding applications.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 4","pages":"Article 101011"},"PeriodicalIF":6.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220310","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":"Metal Organic Framework based Humidity Sensing: Stability, performance, and IoT Integration","authors":"Waseem Akram ,&nbsp;Shahzad Iqbal ,&nbsp;Zahir Abbas ,&nbsp;Shiekh Mansoor ,&nbsp;Imran Shah ,&nbsp;Asad Ullah ,&nbsp;Wei Xu ,&nbsp;Woo Young Kim","doi":"10.1016/j.jsamd.2025.100972","DOIUrl":"10.1016/j.jsamd.2025.100972","url":null,"abstract":"<div><div>The incorporation of IoT technology with advanced sensing materials is converting smart agriculture by allowing precise control over environmental conditions and optimizing resource utilization for advanced agricultural productivity. This study examines the potential of metal-organic frameworks (MOFs) for soil moisture detection in plants, focusing on their application in IoT-enabled smart agriculture systems. Two MOFs, synthesized with nickel acetate and zinc acetate, were evaluated for their humidity-sensing capabilities. The nickel acetate-based MOF had a highly porous, rod-shaped morphology with homogeneous dendrites and high capacitance, in contrast to the Zn-MOF, which exhibited clustering and reduced effective humidity collecting sites, as confirmed by Raman and XRD investigations and SEM images. Ni-MOF outperformed Zn-MOF with a 7.5 times increase in capacitance between 10 % and 90 % relative humidity and a minimal hysteresis of 3.5 % at 70 % relative humidity. Additionally, Ni-MOF demonstrated exceptional response and recovery times of 1.6 s and 0.3 s, respectively. These attributes underscore Ni-MOF's suitability for reliable and efficient soil moisture sensing in agricultural applications. By integrating Ni-MOF sensors into wireless sensor networks and IoT frameworks, this research highlights their potential to fuse field-based sensor data with proximal sensing platforms, contributing to enhanced decision-making and optimization of agricultural operations.</div></div>","PeriodicalId":17219,"journal":{"name":"Journal of Science: Advanced Materials and Devices","volume":"10 4","pages":"Article 100972"},"PeriodicalIF":6.8,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145747050","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}