Materials Advances最新文献

{"title":"Annealing BaAl2O4:Tb3+/Tb4+ in air and a reducing atmosphere: a strategy to enhance luminescence by eliminating Tb4+","authors":"Divya Janardhana, Shivaramu Nagarasanakote Jayaramu, Elizabeth Coetsee, David E. Motaung and Hendrik C. Swart","doi":"10.1039/D5MA00747J","DOIUrl":"https://doi.org/10.1039/D5MA00747J","url":null,"abstract":"<p >The enhancement of green luminescence in terbium (Tb)-doped BaAl<small>₂</small>O<small>₄</small> phosphors was significantly influenced by the annealing environment, primarily due to the reduction of Tb<small>⁴⁺</small> to Tb<small>³⁺</small> – a key factor for solid-state lighting applications. In this research, BaAl<small>₂</small>O<small>₄</small>:Tb<small>³⁺</small>/Tb<small>⁴⁺</small> luminescent materials were synthesized through a coprecipitation method. The sample underwent annealing at 1200 °C for 2 h in an alumina crucible in air and under varying pressures of a H<small>₂</small> (5%)/Ar atmosphere to investigate the influence of annealing at different atmospheres on the luminescent characteristics of BaAl<small>₂</small>O<small>₄</small>:Tb<small>³⁺</small>. X-ray powder diffraction analysis of Tb<small>³⁺</small>-doped BaAl<small>₂</small>O<small>₄</small> revealed a hexagonal crystal structure, corresponding to the space group <em>P</em>6<small>₃</small>. X-ray photoelectron spectroscopy (XPS) showed that Ba atoms occupied two distinct sites in BaAl<small>₂</small>O<small>₄</small>. Additionally, the XPS analysis confirmed the presence of both Tb<small>³⁺</small> and Tb<small>⁴⁺</small> oxidation states in the BaAl<small>₂</small>O<small>₄</small>:Tb sample annealed in air, which is further supported by electron paramagnetic resonance analysis, substantiating the presence of Tb<small>⁴⁺</small>. The samples annealed in a H<small>₂</small> (5%)/Ar atmosphere demonstrated superior photoluminescence (PL) relative to those annealed in air, attributable to the absence of Tb<small>⁴⁺</small> in the samples. PL emission in blue, green, and red was observed under excitation from the interconfigurational 4f<small>⁸</small> → 4f<small>⁷</small> 5d<small>¹</small> transitions of Tb<small>³⁺</small> (228 nm). UV-Vis diffuse reflectance studies indicated the nonexistence of Tb<small>⁴⁺</small> in samples annealed in a H<small>₂</small> (5%)/Ar environment at varying pressures. These investigations suggest that the presence of Tb<small>⁴⁺</small> in BaAl<small>₂</small>O<small>₄</small> functions as a luminescence quencher for Tb<small>³⁺</small>, presumably due to charge compensation and electron acceptor defects that inhibit the luminescence of Tb<small>³⁺</small>.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 19","pages":" 6803-6819"},"PeriodicalIF":4.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00747j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomistic simulations of irradiation damage on the engineering timescale: examining the dose rate effect in tungsten","authors":"Max Boleininger, Daniel R. Mason, Thomas Schwarz-Selinger and Pui-Wai Ma","doi":"10.1039/D5MA00677E","DOIUrl":"https://doi.org/10.1039/D5MA00677E","url":null,"abstract":"<p >The change in materials properties subjected to irradiation by highly energetic particles strongly depends on the irradiation dose rate. Atomistic simulations can in principle be used to predict microstructural evolution where experimental data is sparse or unavailable, however, fundamental limitations of the method make it infeasible to replicate the experimental timescale spanning from seconds to hours. Here, we present an atomistic simulation method where the motion of vacancies is accelerated, while the fast degrees of freedom are propagated with standard molecular dynamics. The resulting method is free of adjustable parameters and can predict microstructural evolution under irradiation at elevated temperatures. Simulating the microstructural evolution of tungsten under irradiation at dose rates of 10<small>⁻⁵</small>, 10<small>⁻⁴</small>, and 10<small>⁻³</small> dpa s<small>⁻¹</small>, we find that increasing the temperature or reducing the dose rate primarily results in a reduction of the steady-state defect concentration, in qualitative agreement with deuterium retention and post-irradiation resistivity recovery experiments. The formation of a nanoscale void is observed if a system initially containing a large dislocation loop is irradiated. We present a minimally simple rate theory model which reproduces the time-dependent defect concentration and volume swelling behaviour obtained from the simulations.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 20","pages":" 7379-7394"},"PeriodicalIF":4.7,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00677e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon foams derived from biomass with ultra-high adsorption capacity for the removal of tetracycline","authors":"Meena Choudhary, Nandana Chakinala, Pooja Saini, Praveen K. Surolia and Anand Gupta Chakinala","doi":"10.1039/D5MA00720H","DOIUrl":"https://doi.org/10.1039/D5MA00720H","url":null,"abstract":"<p >This study focusses on the development of carbon foams (CFs) derived from carbohydrates evaluated for their adsorptive removal of model pollutants. The influence of different metal nitrates (cobalt, zinc, iron, magnesium, and chromium) and carbon precursors (cellulose, agar, sucrose, and starch) on the CF preparation and their effects on the adsorptive removal of tetracycline is extensively studied. CF derived from zinc nitrate catalyzed agar was studied extensively. Batch adsorption experiments were conducted to assess the effectiveness of CF under varying initial feed concentrations (25–500 mg L<small>⁻¹</small>), adsorbent loadings (0.25–1.00 g L<small>⁻¹</small>), pH range (4.5–9.8), and temperature range (20–35 °C). A maximum adsorption capacity of 1822 mg g<small>⁻¹</small> was achieved at 500 mg L<small>⁻¹</small> of feed and with an adsorbent loading of 0.25 g L<small>⁻¹</small>. The adsorption data were well-described by the Freundlich isotherm, indicating the heterogeneous nature of the CF surface, with multiple adsorption sites resulting in a non-uniform distribution of adsorbate molecules. The adsorption kinetics followed a pseudo-second-order model, suggesting that chemisorption was the predominant mechanism in the process. Thermodynamic analysis indicated that the adsorption process was endothermic and spontaneous, with a positive entropy change. Additionally, CF demonstrated excellent reusability, maintaining adsorption efficiency over three consecutive cycles.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 20","pages":" 7450-7468"},"PeriodicalIF":4.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00720h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zinc-based metal organic framework loaded-electrospun PVA/PEO/l-arginine nanofibers as efficient antimicrobial scaffolds for burn skin wound healing","authors":"El-Refaie Kenawy, Zeinab S. Ghaly, Elbadawy A. Kamoun, Wesam E. Yousuf, Abdel-baset M. Shokr, Youstina S. Salib and Eman E. Elmohamady","doi":"10.1039/D5MA00420A","DOIUrl":"https://doi.org/10.1039/D5MA00420A","url":null,"abstract":"<p >Burns represent a significant health challenge, causing extensive skin damage and necessitating advanced wound care strategies. This study explores the development of electrospun NFs composed of polyvinyl alcohol (PVA)/polyethylene oxide (PEO)/<small>L</small>-arginine (<small>L</small>-Arg) with a ratio of <em>ca.</em> (4 : 1 : 0.5), with/without loading zinc-based metal–organic frameworks (Zn-MOF). The synthesized Zn-MOF and the composite nanofiber were fully examined by FT-IR, XRD, SEM, and EDX analyses. Meanwhile, the incorporation effect of PEO into the PVA NFs enhanced the mechanical strength of the nanofibers, while the incorporation of Zn-MOFs enhanced the antimicrobial activity of the nanofibers. Antimicrobial testing demonstrated significant broad-spectrum efficacy <em>vs.</em> Gram-positive bacteria (<em>Bacillus subtilis</em>, <em>Staphylococcus aureus</em>), Gram-negative bacteria (<em>Escherichia coli</em>, <em>Klebsiella pneumoniae</em>), and yeast, <em>e.g. Candida albicans</em>, with the highest inhibition zones observed particularly with loading 10% Zn-MOF into the formulations. <em>In vivo</em> evaluation using a rat burn model revealed significantly accelerated wound healing, enhanced epidermal regeneration, increased wound contraction percentage, and elevated vascular endothelial growth factor (VEGF) expression in the Zn-MOF-treated groups. Histopathological analysis confirmed superior tissue regeneration and reduced inflammation, particularly for nanofibers containing high Zn-MOF concentrations. These findings indicate that Zn-MOF-loaded PVA/PEO/<small>L</small>-Arg nanofibers are promising candidates for the effective treatment of burn wounds, offering both antimicrobial protection and improved tissue healing.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 20","pages":" 7282-7296"},"PeriodicalIF":4.7,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00420a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lanthanide-based UCNPs: toxicity evaluation and interaction of ultrasmall core vs. core–shell nanoparticles with cells","authors":"Mykhailo Nahorniak, Daniel Horák, Miroslav Šlouf, Miloš Steinhart, Oleksandr Shapoval, Hana Engstová and Petr Ježek","doi":"10.1039/D5MA00542F","DOIUrl":"https://doi.org/10.1039/D5MA00542F","url":null,"abstract":"<p >We describe a new concept for preparation of ultrasmall NaYF<small>₄</small>:Yb,Er upconversion nanoparticles (UCNPs) with a diameter of 7 nm, depending on the amount of water added in the polymerization mixture, which affects the nucleation and growth of the particles. The morphology and structure of the nanoparticles were thoroughly characterized both in the dried state (TEM including elemental analysis and electron diffraction) and in solution (small and wide-angle X-ray scattering and dynamic light scattering). A thick NaYF<small>₄</small> shell was subsequently introduced onto the particles, which significantly increased the luminescence by minimizing surface quenching effects and passivating the core from the surrounding environment. To make the particles dispersible in the aqueous environment natural for biological applications, they were coated with a ∼6 nm thick hydrophilic silica layer. This increased the size of core and core–shell UCNPs to 20 and ∼50 nm. All the developed particles exhibited non-cytotoxicity tested in insulinoma INS-1E cells. The upconversion luminescence of these nanoparticles incubated with INS-1E cells showed a similar pattern to that of the particles themselves. The small biocompatible UCNPs developed in this study are promising candidates for non-invasive and non-destructive applications in bioimaging. Thanks to their advantageous properties, <em>i.e.</em>, small size, adjustable optical properties and ability to interact with and easily penetrate cells, they are suitable for future use in platforms for targeted drug delivery and advanced diagnostic technologies.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 19","pages":" 6907-6918"},"PeriodicalIF":4.7,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00542f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Colour tuneable luminescent organic–inorganic hybrid materials based on lanthanide-doped ionic liquid polymers†","authors":"Olivier Renier, Guillaume Bousrez, Veronica Paterlini, Magdalena Wilk-Kozubek and Anja-Verena Mudring","doi":"10.1039/D5MA00282F","DOIUrl":"https://doi.org/10.1039/D5MA00282F","url":null,"abstract":"<p >Highly luminescent organic–inorganic hybrid materials have been prepared by combining task-specific polymerized ionic liquids (PILs) based on the 1-alkyl-3-vinylimidazolium cation ([C<small>_<em>n</em></small>Vim]<small>⁺</small> (with <em>n</em> = 2–6)) with suitable halides of trivalent lanthanides such as europium and terbium. The resulting materials have been characterized by <small>¹</small>H nuclear magnetic resonance, Fourier transform infrared, UV-Vis and photoluminescence spectroscopy. They show bright and intense luminescence over a wide range of excitation wavelengths, which particularly for the Eu<small>³⁺</small> containing compounds, benefits from efficient energy transfer from the organic aromatic moieties in the PIL to the emitting level of the lanthanide(<small>III</small>) ion. In the case of the Tb<small>³⁺</small> ion, the emission benefits from excitation into the Tb<small>³⁺</small> d levels. The emission colour can be tuned from green to red for Tb and Eu respectively. This includes bright white emission for Eu that can be achieved by altering the excitation wavelength. The easy processability of these novel PILs renders them interesting for a wide range of optical applications.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 19","pages":" 7056-7066"},"PeriodicalIF":4.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00282f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An overview of small diameter vascular grafts: from materials to fabrication","authors":"Qian Li, Xili Ding, Cong Chen, Kui Zhang and Ran Dong","doi":"10.1039/D5MA00663E","DOIUrl":"https://doi.org/10.1039/D5MA00663E","url":null,"abstract":"<p >Small-diameter vascular grafts (SDVGs, inner diameter ≤6 mm) are in urgent demand for treating severe vascular diseases, such as coronary and peripheral artery diseases, where autologous grafts are often unavailable. Despite the clinical success of large-diameter vascular grafts (LDVGs), SDVGs face significant challenges, including poor biocompatibility, high thrombosis risk, and inadequate mechanical properties, limiting their widespread application. Recent advances in biomaterials—ranging from synthetic polymers to decellularized scaffolds—have sought to address these limitations, yet each material presents trade-offs in durability, immunogenicity, and regenerative potential. Furthermore, innovative fabrication techniques, such as electrospinning and 3D printing, have improved graft performance but struggle with scalability and long-term patency. In this review, we systematically evaluated the current materials used for the fabrication of SDVGs and classified them based on degradability (degradable <em>vs.</em> non-degradable) and origin (biological materials <em>vs.</em> synthetic polymers), providing a comprehensive comparison of their utility in SDVG applications. Furthermore, we conducted a detailed elaboration and comparative analysis of various fabrication techniques, including cell sheet engineering, molding, bioreactor, bioprinting, and others. Most importantly, we provide clinical insights into overcoming current barriers, proposing strategies for enhancing hemocompatibility, endothelialization, and mechanical resilience to accelerate the translation of SDVGs into real-world practice.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 18","pages":" 6221-6242"},"PeriodicalIF":4.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00663e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From an insulating Zn-porphyrin metallacage to electrically conducting inclusion complexes featuring extended π-donor/acceptor stacks","authors":"Evan Thibodeaux, Paola A. Benavides, Ellis Barger, Rakesh Sachdeva and Sourav Saha","doi":"10.1039/D5MA00653H","DOIUrl":"https://doi.org/10.1039/D5MA00653H","url":null,"abstract":"<p >π-Donor/Acceptor charge-transfer (CT) interactions between redox-complementary π-systems often give rise to non-native optical and electronic properties that are beneficial for modern electronics and energy technologies. However, the formation of extended supramolecular π-donor/acceptor stacks capable of long-range charge transport requires ingenious design strategies that can help reinforce otherwise weak π-donor/acceptor noncovalent interactions. Herein, we demonstrate that a large tetragonal prismatic metal–organic cage (MOC2<small>⁸⁺</small>) having two parallel π-donor tetrakis(4-carboxyphenyl)-Zn-porphyrin (ZnTCPP) faces located ∼14 Å apart can accommodate up to three redox-complementary planar aromatic guests (either three π-acceptor guests or two π-acceptors surrounding one π-donor guest) between the ZnTCPP faces, forming extended π-donor/acceptor stacks. While empty MOC2<small>⁸⁺</small> behaves as an insulator due to the lack of charge delocalization across its large cavity, its inclusion complexes saturated with π-acidic hexaazatriphenylene hexacarbonitrile (HATHCN) and hexacyanotriphenylene (HCTP) displayed noticeably higher electrical conductivity (8.7 × 10<small>⁻⁶</small> and 1.3 × 10<small>⁻⁶</small> S m<small>⁻¹</small>, respectively) owing to more facile charge transport through the π-donor/acceptor stacks composed of the π-acidic guests intercalated between the ZnTCPP faces. Thus, this work demonstrates that tetragonal prismatic metallacages with two parallel electroactive faces can facilitate the creation of extended π-donor/acceptor stacks by encapsulating redox-complementary planar guests, which in turn facilitates through-space charge delocalization, generating non-native electrical conductivity.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 18","pages":" 6567-6574"},"PeriodicalIF":4.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00653h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asymmetry-driven irregular topological defects and hydrodynamic cavitation of tadpole particles in nematic liquid crystals","authors":"Xiaowei Wang, Teagan Hamlett, Sid Hashemi, Joseph E. Doebler, Tasha Joy, Giordano Tierra, Ying Bao and Xiao Li","doi":"10.1039/D5MA00550G","DOIUrl":"https://doi.org/10.1039/D5MA00550G","url":null,"abstract":"<p >Topological defects (TDs) arise from the disruption of orientations that span multiple length scales, from nanometers in biological systems to miles in cosmic systems, often resulting from energy minimization leading to symmetric morphologies. Symmetry breaking is a challenge in creating new types of topological defects to understand self-assembly mechanisms when driving the system away from the equilibrium state. Nematic liquid crystals (LCs) provide an ideal system to create, annulate, and directly visualize TDs. We use asymmetric particles, named tadpole-shaped particles, which have sphere-shaped heads and long tails, to explore new symmetry-breaking defect morphologies when dispersing these tadpole particles into nematic liquid crystals. Experimental observations and numerical simulations demonstrated that the micrometer-sized SiO<small>₂</small> tails exhibit exceptional flexibility, distorting the surrounding LC field into butterfly-shaped defects. As these particles moved through the LC medium under capillary forces, dynamic interfacial fluctuations between the air and LC phases facilitated the formation of metastable cavities. This novel system enabled cavity generation and revealed a unique formation mechanism driven by hydrodynamic cavitation, where a balance between capillary, elastic, and viscous forces led to cavity contraction and equilibrium restoration. Beyond advancing fundamental understanding, these findings open new avenues for designing microactuators, soft robotics, and adaptive materials, transforming the role of active particles in LC systems.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 19","pages":" 6711-6723"},"PeriodicalIF":4.7,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00550g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145183980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical detection of glucose and nitrophenol using a novel CuMn-LDHs/r-GO nanocomposite","authors":"Sumbal Tahir, Farhat Saira, Hira Noor and Humaira Razzaq","doi":"10.1039/D5MA00492F","DOIUrl":"https://doi.org/10.1039/D5MA00492F","url":null,"abstract":"<p >Layered double hydroxides (LDHs) are gaining interest in multifunctional materials due to their uniform metal ion distribution and ease of anion exchange, contributing to advancements in clinical, environmental, and food chemistry. In this study, Cu–Mn layered double hydroxides (CuMn-LDHs) were synthesized using a one-step co-precipitation method. The pristine LDHs cause aggregation and have limited conductivity. Due to these limitations, reduced graphene oxide (r-GO) was incorporated into CuMn-LDHs and CuMn-LDHs/r-GO nanocomposites were synthesized. Reduced graphene oxide having high surface area caused increased dispersion of CuMn-LDHs and prevented agglomeration. The CuMn LDHs and CuMn-LDHs/r-GO nanocomposites were characterized by using Fourier transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS), UV-Vis spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction (XRD). The CuMn-LDH modified gold electrode (CuMn-LDHs/AuE) exhibited electrocatalytic behavior achieving a low detection limit (LOD) of 0.006 μM, with a wide linear range of 50 μM to 6 mM and a sensitivity of 52.28 μA mM<small>⁻¹</small> cm<small>⁻²</small>. The composite material showed superior performance as a CuMn-LDH/r-GO modified gold electrode (CuMn-LDHs/r-GO/AuE) exhibited good electrocatalytic glucose oxidation, achieving a low detection limit (LOD) of 0.96 nM, with a linear range of 50 μM to 8.6 mM along with a sensitivity of 339.7 μA mM<small>⁻¹</small> cm<small>⁻²</small> for glucose and a very high sensitivity of 9668 μA mM<small>⁻¹</small> cm<small>⁻²</small> for nitrophenol (NP). The future potential of these electrode materials to develop sensors is demonstrated by their outstanding quantitative performance, cost effectiveness, and ease of use in a one-step synthesis process.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 20","pages":" 7395-7408"},"PeriodicalIF":4.7,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00492f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145284138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}