Materials Chemistry and Physics最新文献

{"title":"Theranostic nanoparticles driven biomaterial for laser tissue soldering: A comparative evaluation of upconverion nanoparticle variants NaYF4:Ho3+/Yb3+ and NaGdF4:Tm3+/Yb3+with real-time optical imaging","authors":"Ishita Banerjee ,&nbsp;Abhishek Banerjee ,&nbsp;Tuhin Mukherjee ,&nbsp;Ashok Pattnaik ,&nbsp;Kaushal Kumar ,&nbsp;Raju Poddar","doi":"10.1016/j.matchemphys.2025.131590","DOIUrl":"10.1016/j.matchemphys.2025.131590","url":null,"abstract":"<div><div>This study compares two Upconversion Nanoparticle (UCNP) systems - NaYF₄:Ho³⁺/Yb³⁺ (UCNP1) and NaGdF₄:Tm³⁺/Yb³⁺ (UCNP2) embedded in albumin-PEG biomaterials for laser tissue soldering. Real-time monitoring was achieved using swept-source optical coherence tomography (SSOCT). The UCNPs were synthesized using <strong>hydrothermal</strong> and <strong>thermal decomposition</strong> methods, subsequently incorporated into PEG-albumin bio-composites (designated <strong>APU1</strong> and <strong>APU2</strong>). However, <strong>APU1 outperformed APU2</strong>, both formulations were structurally characterized and applied in ex vivo chicken skin and in vivo albino mice dorsal models. APU1 achieved superior thermal elevation (∼47 °C), mechanical strength (0.8265 N/cm²), and cell viability (∼90 %) compared to APU2. Real-time B-scan images from SSOCT and optical attenuation coefficient (OAC) imaging confirmed stronger interface bonding and reduced scattering heterogeneity in APU1. These results highlight the influence of UCNP composition and nanoparticle uniformity on LTS performance, positioning APU1 as a promising photothermal biomaterial for precision-guided soft tissue repair. These findings underscore the potential of UCNP1<strong>-functionalized PEG-albumin biomaterials</strong> as a robust platform for <strong>precision laser-assisted tissue repair</strong>, combining <strong>high thermal conversion efficiency</strong>, <strong>excellent biocompatibility</strong>, and <strong>real-time diagnostic feedback</strong> for next-generation regenerative medicine.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131590"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119127","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":"Prototype fabrication of graphite-patterned flexible sensors and gauges for liquid level monitoring","authors":"Zaka Ullah ,&nbsp;Nadeem Raza ,&nbsp;Hasnain Akhtar ,&nbsp;Nazmina Imrose Sonil","doi":"10.1016/j.matchemphys.2025.131587","DOIUrl":"10.1016/j.matchemphys.2025.131587","url":null,"abstract":"<div><div>Liquid sensors and gauges have secured a broad range of applications in various industries owing to their features like liquid leakage detection and level monitoring. The current work demonstrates the fabrication of liquid gauges based on graphite-patterned cellulose paper. The device is designed using computer software and printed on cellulose paper, and a graphite pattern is employed as per the printed design using the pencil drawing method. The surface morphology and elemental composition of the graphite coatings are analyzed through a scanning electron microscope with the associated energy-dispersive detector. The device is fabricated by simply connecting the copper wires with the help of copper adhesive tape along the two edges of the graphite pattern. The device is exposed to water, and current through the device is monitored. The rapid increase in the current through the device evidences the detection of liquid. The response time and recovery time of the device are recorded as 0.91 and 51.06 s, respectively. The design of the sensor is further modified, and it efficiently acts as a liquid gauge to monitor the liquid level in a liquid container. The performance of the sensor is evaluated for the detection of ultrasmall amounts of liquid up to 0.08 ml, and extra-large amounts of liquid up to 6280.00 l. The results show that the response of the sensor is sharp, accurate, and stable. The sensor is also tested for various analytes, including milk, soft drinks, isopropyl alcohol (IPA), and petrol, for which it works proficiently. Moreover, the assembly of liquid sensors and gauges is extremely facile and cost-effective, which can significantly advance the reliability of these devices for practical applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131587"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119126","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":"Compositional tuning of the magnetocaloric effect in Fe–Nb–B alloys: Critical behavior and phase transition characteristics","authors":"Dongyoung Han ,&nbsp;Sunghyun Kim ,&nbsp;Heebok Lee ,&nbsp;Hyunchul Oh ,&nbsp;Kwanghyo Son","doi":"10.1016/j.matchemphys.2025.131577","DOIUrl":"10.1016/j.matchemphys.2025.131577","url":null,"abstract":"<div><div>Magnetic refrigeration, utilizing the magnetocaloric effect (MCE), has emerged as a promising alternative to conventional cooling technologies due to its sustainability and efficiency. In this study, we investigate the influence of Fe composition on the magnetocaloric properties and critical behavior of Fe_93-xNb₇B_x (x = 2, 16, 18, 29) amorphous alloys, focusing on their potential for enhanced performance. The isothermal entropy change (<em>ΔS</em>_<em>m</em>) was evaluated under varying magnetic fields, revealing that the x = 18 sample exhibits the highest <em>ΔS</em>_<em>m</em> value of 1.68 J/kg·K at 1.5 T. Critical exponents (<em>β, γ, δ,</em> and <em>n</em>), derived using modified Arrott plot (MAP), critical isotherm (CI) and Widom scaling relation (WSR), showing a strong dependence on Fe content. Furthermore, all samples were confirmed to undergo a second-order phase transition, emphasizing the compositional tunability of their magnetic behavior. These findings not only deepen our understanding of the correlation between Fe composition and magnetocaloric performance but also provide a practical framework for optimizing FeNbB alloys. This work paves the way for developing advanced materials tailored for sustainable cooling applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131577"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119171","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":"Pristine and polymer functionalized cerium oxide nanoparticles for antimicrobial and anticancer activities","authors":"Arslan Mahmood ,&nbsp;Tariq Munir ,&nbsp;Kiran Hashmi ,&nbsp;Arshia ,&nbsp;Sohail Mumtaz ,&nbsp;Majed A. Bajaber ,&nbsp;Ali El-Rayyes ,&nbsp;Irfan Ali","doi":"10.1016/j.matchemphys.2025.131591","DOIUrl":"10.1016/j.matchemphys.2025.131591","url":null,"abstract":"<div><div>Polymer-coated metal oxide nanoparticles (MO-NPs) offer potential toxicity and interaction with biological systems. Chitosan (CS) and Polyethylene glycol (PEG) coating agents could improve sensitivity, control the size, morphology, monodispersity and biocompatibility of MO-NPs. Current study about the synthesis of pristine and polymer functionalized cerium oxide NPs (Ce-NPs) via co-precipitation method. The crystal structure, morphology, functional groups and magnetic behaviour of functionalized Ce-NPs was identified by various techniques such as x-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Vibrating sample magnetometer (VSM) analysis. After material study the agar dilution method was performed to investigate antimicrobial activities against <em>E.coli</em> and <em>Fusarium b.</em> The PEG coated Ce-NPs shows good microbial agent against <em>E.coli</em> (10, 11, 12 mm) and <em>Fusarium b</em> (10, 11.5, 12 mm). After that, MTT assay was performed to investigate anticancer activity and observed that PEG functionalized Ce-NPs provided significant anticancer agent against MCF-7 (41.1 ± 1.18, 36.2 ± 1.04 and 33.1 ± 0.95) cell line. The overall analyses shows that PEG functionalized Ce-NPs are suitable for biomedical applications; in future these functionalized NPs will be used for in-vivo to treat the infected rats via hyperthermia therapy.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131591"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119067","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":"Effect of nominal Ca/P ratios on the growth of calcium phosphate phases: An in-situ and ex-situ XRD investigation","authors":"Mayora Varshney ,&nbsp;Aditya Sharma ,&nbsp;Hyun Joon Shin ,&nbsp;Keun Hwa Chae ,&nbsp;Byeong-Hyoeon Lee ,&nbsp;Sung Ok Won","doi":"10.1016/j.matchemphys.2025.131593","DOIUrl":"10.1016/j.matchemphys.2025.131593","url":null,"abstract":"<div><div>In this study; the effect of nominal Ca/P ratios has been investigated to build a relationship among the synthesis, structural, compositional, thermal stability, and electronic structure assets of calcium phosphate phases. The <em>in-situ</em> and <em>ex-situ</em> X-ray diffraction (XRD) measurements and quantitative phase analysis are performed to investigate the structural phase evolution and transformation under heat treatment. The low-temperature (80 °C) synthesis employed in this work has resulted in calcium-deficient hydroxyapatite (CDHA; pentacalcium dihydrogen-phosphate tris-phosphate hydroxide) phase formation for all the nominal Ca/P ratios (1.4–1.8). It is evidenced that the single phase β-Ca₃(PO₄)₂ (β-tricalcium diorthophosphate; β-TCP) is stabilized for nominal Ca/P = 1.4 at 1000–1100 °C. The <em>in-situ</em> and <em>ex-situ</em> XRD results revealed that the Ca₁₀(PO₄)₆(OH)₂ (i.e., hydroxyapatite; HA) and β-TCP are the stable phases in the nominal Ca/P ratios of 1.5 and 1.6 containing samples. In the intermediate Ca/P ratios range (i.e., 1.67–1.7), the tri-phasic calcium phosphates (β-TCP, HA, and α-TCP) have been stabilized. Excitingly, the significant proportion of the α-TCP phase has been stabilized along with the dominating HA phase, at higher nominal Ca/P ratios (1.8). FE-SEM results show porous morphology, despite the nominal Ca/P ratio variation. The phase identification and dissimilarity in the O 2p and Ca 3d orbital hybridization, in the various phases of calcium phosphate, is also investigated by employing the element-specific X-ray absorption near edge structure (XANES) at O K-edge and Ca L-edge.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131593"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119172","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":"Graphene oxide-based bio nanocomposites for hyperthermia-driven anticancer therapy","authors":"Mohammad Mashayekhi ,&nbsp;Fatemeh Amjad ,&nbsp;Fatemeh Najafi ,&nbsp;Fatemeh Moradbeygi ,&nbsp;Mohammad Reza Nasiri ,&nbsp;Nasim Kaveh Farsani ,&nbsp;Mohammadreza Tajik ,&nbsp;Niloofar Fatemipayam ,&nbsp;Behnoosh Khodadadi ,&nbsp;Ahmad Reza Farmani ,&nbsp;Mohammad Tavakkoli Yaraki","doi":"10.1016/j.matchemphys.2025.131588","DOIUrl":"10.1016/j.matchemphys.2025.131588","url":null,"abstract":"<div><div>Graphene oxide (GO) has become a very promising platform for hyperthermia-based cancer treatment because it has a large surface area, can have its surface chemistry changed, and is great at photothermal therapy. This review provides a comprehensive examination of GO-based bio-nanocomposites engineered for accurate drug delivery and regulated hyperthermia treatment. We critically evaluate diverse synthesis and functionalization methodologies that enhance GO's properties for biomedical applications, highlighting its superiority compared to alternative nanomaterials. The review elucidates the fundamental mechanisms of photothermal (PTT) and magnetothermic (MTT) therapies, demonstrating how GO-based systems can be effectively integrated with chemotherapy and immunotherapy to augment therapeutic efficacy via synergistic effects. These platforms also support drug release that responds to stimuli and real-time theranostic imaging methods like MRI and SERS. Even though they have high drug-loading efficiencies (up to 95 %) and have been shown to work well in preclinical models to shrink tumors, there are still problems with toxicity, long-term stability, nanoparticle aggregation, and controlling the exact distribution of heat. This review stands out because it compares different ways to make GO and tests how well GO works compared to other hyperthermia platforms. We discuss about possible solutions to these problems in the future. These include environmentally friendly synthesis methods, aptamer-based targeting, and the use of advanced fabrication technologies like 3D printing and microfluidics. We also discuss about how to combine hyperthermia with immunotherapy and other biophysical treatments. These new ideas are likely to lead to the creation of next-generation cancer treatments that can do many things and make the most of combination treatment strategies.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131588"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155567","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":"Influence of argon arc remelting process on surface qualities of WAAM parts for 316L stainless steel","authors":"Jing Wang,&nbsp;Yushuang Huo","doi":"10.1016/j.matchemphys.2025.131594","DOIUrl":"10.1016/j.matchemphys.2025.131594","url":null,"abstract":"<div><div>Wire arc additive manufacturing (WAAM) is famous for its high deposition efficiency and low costs. WAAM molded parts often suffer from poor surface quality and high roughness because of the build-up of layers. In practical applications, the surface quality of the product affects the subsequent use, such as the corrosion resistance, wear resistance of the product, etc., which in turn affects the service life. In this paper, the argon arc remelting process is used to treat the surface of the ER316L stainless steel molded parts prepared by WAAM, which can effectively improve the surface quality, which has important production guidance significance for further promoting the application of WAAM stainless steel molded parts. In this paper, argon arc remelting (TIGR) was selected for the side surfaces of 316L WAAM workpieces. The results showed that TIGR improved the surface quality of 316L WAAM products. TIGR reduced the surface roughness Sa from 51.816 μm to 28.030 μm. The remelted zone (RZ) had internal grain refinement and higher microhardness than the deposited zone. The average wear coefficient decreased from 0.5694 in the deposited state to 0.4968 in the remelted state, and a certain improvement in wear resistance. The tightness and stability of the passivation film on the surface of remelted samples were effectively improved over deposited samples. With a small self-corrosion current density of 2.005 × 10⁻⁴A/cm² and a large radius of the impedance curve, the electrochemical corrosion resistance was suitably enhanced.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131594"},"PeriodicalIF":4.7,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119259","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":"Transition metal synergy and chalcogen coordination in Ni(1-x)FexSSe for superior hydrogen evolution activity","authors":"Rajni Thakur ,&nbsp;Rohit Kumar ,&nbsp;Samriti Mehta ,&nbsp;R. Geetha Balakrishna ,&nbsp;Shwetharani R ,&nbsp;Itika Kainthla","doi":"10.1016/j.matchemphys.2025.131565","DOIUrl":"10.1016/j.matchemphys.2025.131565","url":null,"abstract":"<div><div>Growing energy concerns emphasize hydrogen as a clean fuel with high energy density. Water electrolysis, using earth-abundant and cost-effective electrocatalysts, presents a promising route for large-scale hydrogen production. The hydrogen evolution reaction (HER) has garnered significant interest, especially in water-alkali electrolyzers. However, developing highly efficient and durable noble-metal-free electrocatalysts to enhance HER kinetics remains a formidable challenge. We successfully synthesized a high-performance quaternary electrocatalyst, NiFeSSe, in this study using a hydrothermal method. Among the synthesized materials, Ni_0.25Fe_0.75SSe emerged as the most effective electrocatalyst, achieving a low overpotential of 158 mV at 10 mA cm⁻² and a Tafel slope of 101.02 mV dec⁻¹ in 0.5 M H₂SO₄, highlighting its superior activity. exhibited significantly higher overpotentials of 414 mV and 868 mV, respectively. Remarkably, at elevated current densities of 50 and 100 mA cm⁻², Ni_0.25Fe_0.75SSe maintained outstanding overpotentials of 198 mV and 211 mV, respectively. Moreover, it demonstrated exceptional durability over 1000 continuous LSV cycles, with only a minimal increase in overpotential from 158 mV to 197 mV. These outstanding electrochemical properties are attributed to the synergistic interactions between Ni and Fe, which accelerate HER kinetics via the Volmer-Heyrovsky mechanism. As a cost-effective and efficient alternative to Pt-based catalysts, Ni_0.25Fe_0.75SSe holds immense potential for scalable hydrogen production and next-generation electrocatalytic applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131565"},"PeriodicalIF":4.7,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106809","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":"Corrosion resistance of Al2O3–SiC–C castables reinforced by sol-gel method prepared titanium carbide modified graphite","authors":"Bolin Yang ,&nbsp;Shixing Liu ,&nbsp;Zhenglong Liu ,&nbsp;Yanglai Hou ,&nbsp;Chao Yu ,&nbsp;Jun Ding ,&nbsp;Chengji Deng","doi":"10.1016/j.matchemphys.2025.131585","DOIUrl":"10.1016/j.matchemphys.2025.131585","url":null,"abstract":"<div><div>To meet the needs of low carbonization of carbon-containing refractories under the background of double carbon, Al₂O₃–SiC–C castables were prepared by using titanium carbide coated graphite instead of traditional spherical asphalt to solve the problem of decreased graphite content and decreased corrosion resistance caused by oxidation. The results show that the introduction of TG into the sample can reduce the increase of porosity caused by the high temperature decomposition of spherical asphalt, and optimize the matrix structure of graphite carbon network. The cold modulus of rupture and cold compressive strength of 2 wt% TG replaced spherical asphalt samples increased by 17.6 % and 27 %, respectively. At the same time, the addition of 3 wt% TG sample has a better load softening temperature, and its corrosion resistance is improved by 30.4 %. In addition, CaO–Al₂O₃–TiO₂ high melting point compounds were formed in the sample, which increased the high temperature viscosity of the slag and inhibited the corrosion of the slag along the pores.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131585"},"PeriodicalIF":4.7,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119173","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":"Micromolar detection of para-aminophenol using 2-dimensional graphene oxide nanosheet based nanocomposite in river water sample","authors":"Shivani Shukla,&nbsp;Shreanshi Agrahari,&nbsp;Ida Tiwari","doi":"10.1016/j.matchemphys.2025.131567","DOIUrl":"10.1016/j.matchemphys.2025.131567","url":null,"abstract":"<div><div>This study consists of successful preparation of tin doped metal oxide supported on graphene oxide (Sn–Co₃O₄/GO) nanocomposite and further utilized it for the wide range detection of 4-AP. The prepared nanocomposite was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman analysis, X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HR-TEM), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The qualitative and quantitative analysis of 4-AP was carried out using cyclic voltammetric technique. At the optimized pH, the successfully prepared Sn–Co₃O₄/GO based sensor for 4-AP detection has shown a linear response in the range of 2–2500 μM with sensitivity of 0.0436 μAμM⁻¹cm⁻² and limit of detection was 0.48 μM. Further, chronoamperometry technique was used to determine the kinetic parameters, K_cat (4 × 10⁻³ M⁻¹s⁻¹) and diffusion coefficient (2.7 × 10⁻⁵ cm²s⁻¹). The synthesized nanomaterial (Sn–Co₃O₄/GO) provides better electrical conductivity, a high electron transfer rate, a wide detection range, a low limit of detection, and great selectivity towards 4-AP. Also, the fabricated sensor was effectively utilized for quantitative analysis of 4-AP in river water sample which exhibited its remarkable sensing ability.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"348 ","pages":"Article 131567"},"PeriodicalIF":4.7,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145119263","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}