Next Materials最新文献

{"title":"Mn2+ and Mn4+ competition in photoluminescence and persistent luminescence","authors":"Hei-Yui Kai,&nbsp;Ka-Leung Wong,&nbsp;Peter A. Tanner","doi":"10.1016/j.nxmate.2025.100610","DOIUrl":"10.1016/j.nxmate.2025.100610","url":null,"abstract":"<div><div>M₂La₃Sb₃O₁₄ (M = Mg, Zn, Mn) exhibit ordered, and for Ca, disordered, rhombohedral pyrochlore systems. The photoluminescence (PL) and persistent luminescence (PersL) has been studied for the Mn-doped Mg, Zn and Ca systems in addition to M = Mn, with major focus upon the Mg system. The systems exhibit differences in the Mn²⁺ and Mn⁴⁺ PL, and also in the PersL. In addition to bandgap excitation, the PersL of Mn²⁺ is due to metal-to-metal charge transfer (MMCT) rather than tunneling. The thermally stimulated luminescence (TL) and PersL decay kinetics have been fitted to give kinetics order and activation energies. The shallowest trap for M = Mg (Zn) has the activation energy of 0.42 eV (0.71 eV) and obeys second order kinetics. TL and temperature-stop (<em>T</em>_STOP) data can explain the anomalous temperature quenching of Mn²⁺ PL, whereas the Mn⁴⁺ PL follows a single barrier model. Using the determined vacuum referred binding energy (VRBE) data, the PersL results for M = Mg have been rationalized. The unusual properties enable a novel anti-counterfeiting material device to be constructed. Our results are especially relevant for Physical, Inorganic and Materials Chemists to understand and tune PL and PersL properties of solid state systems. It is found that disorder is not a criterion for improvement of PersL.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100610"},"PeriodicalIF":0.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735249","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":"Multi-functional Ag2O-NiO composite bio-catalyst: Efficacy in breast cancer and anti-microbial properties","authors":"Deepu Habbanakuppe Ramakrishnegowda ,&nbsp;Sweekar Baradekoppa Ramesh ,&nbsp;Kampalapura S. Chandrakantha ,&nbsp;Shobith Rangappa ,&nbsp;Kanchugarakoppal S. Rangappa ,&nbsp;Maralinganadoddi P. Sadashiva","doi":"10.1016/j.nxmate.2025.100625","DOIUrl":"10.1016/j.nxmate.2025.100625","url":null,"abstract":"<div><div>Silver and nickel composites are known for enhancing biocatalytic activity and have substantial potential in biomedical engineering due to their comprehensive applications. Here, we synthesized an Ag₂O/NiO composite using the microwave hydrothermal method and characterized it by XRD, SEM, DLS, FTIR, TEM, and XPS analysis. The Ag₂O/NiO composite catalyst was tested against the breast cancer cell line MDA-MB-231 and showed dose-dependent growth inhibition with IC₅₀ values of 100, 250, 500, and 1000 μg/ml⁻¹ as determined by the MTT assay. In addition, the composite showed antimicrobial activity against <em>Escherichia coli (MTCC 7410), Staphylococcus aureus (MTCC 7443), Fusarium oxysporum (RCMB 001004),</em> and <em>Aspergillus niger (RCMB 02724).</em> These results suggest that the Ag₂O/NiO composite is an active biocatalyst with promising antimicrobial and anticancer properties.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100625"},"PeriodicalIF":0.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735250","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":"Understanding lithiation induced volume variations and its impact on porous cobaltite (LiCo2O4) for Li-ion battery cathodes","authors":"L. Maake,&nbsp;B. Shibiri,&nbsp;P.E. Ngoepe,&nbsp;R.S. Ledwaba","doi":"10.1016/j.nxmate.2025.100601","DOIUrl":"10.1016/j.nxmate.2025.100601","url":null,"abstract":"<div><div>Spinel LiCo₂O₄ exhibits superlative electrochemical performance due to its high Li⁺ diffusion rate; meanwhile, porous nanomaterials offer large surface areas and pore volume, allowing materials to expand freely with lithiation. However, it is very difficult to synthesise LiCo₂O₄ through conventional methods. As such, it has become redundant over the years. Therefore, herein, molecular dynamics simulation methods are employed to investigate the porosity and structural changes of three lithiated Li_1+xCo₂O₄ (0 ≤ x ≤ 1) nanoporous materials with cell dimensions of 67, 69, and 75 Å during the discharge process to improve their cycling performance and structural stability. The radial distribution functions showed structures, which have sufficiently amorphised and recrystallised with lithiation. Furthermore, the simulated XRDs showed peaks that correspond to the formation of the cobaltite LiCo₂O₄ spinel when compared to experimental results. In addition, the XRDs also show significant peak shifts, splits, and broadening with increasing lithium concentration. This may be attributed to structural changes and phase transitions from cubic to tetragonal symmetry since multi-grained structures are observed at the Li_1.75Co₂O₄ concentration. Pore size changes in the materials are also observed with increasing lithium concentration, and the nanoporous materials experience some volume changes during the discharge process. Nanoporous 69 Å material is observed to have a great overall volume increase compared to its counterparts. However, all the nanoporous materials retain their structural integrity upon full lithiation at Li_2.00Co₂O₄; indicating their potential to enhance the cycling performance and structural stability of LiCo₂O₄ cathodes.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100601"},"PeriodicalIF":0.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735248","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":"Data-driven approach for synthesizing, characterization, and experimental investigation of biomass-based plastic","authors":"Sunil Kumar Srivastava ,&nbsp;Kedari Lal Dhaker","doi":"10.1016/j.nxmate.2025.100596","DOIUrl":"10.1016/j.nxmate.2025.100596","url":null,"abstract":"<div><div>Climate change, an urgent and significant concern in our current stage of human civilization, is exacerbated by the role of synthetic plastic and polymers. Their petrochemical-based synthesis and non-biodegradable nature pose alarming threats. Synthetic polymers, including plastic, are known to be dangerous materials that impact human civilization in various ways. The irreversible covalent crosslink in polymer imparts better mechanical properties (thermal and chemical resistance), reducing the possibility of recycling and reusing chemically synthesized polymer. The study reports that ∼60000 plastic bags are used every 5 seconds. The need to address the detrimental impacts of polymer biomass-based plastic materials is urgent. These materials offer a more sustainable alternative with their superior quality and biodegradability. This research utilizes soya waste to develop sustainable environmental biomaterials, emphasizing the pressing need for immediate action to combat plastic pollution. This article presents an innovative, data-driven approach for synthesizing, characterizing, and experimentally investigating biomass-based plastic. The use of cutting-edge Artificial Intelligence (AI) based tools like Adaptive Neuro-Fuzzy Inference System (ANFIS) and Artificial Neural Network (ANN), as well as statistical approach Response Surface Methodology (RSM), were adopted in this research work, marking a novel and exciting development in the field. These tools were used to develop a model that automates synthesizing biomass-based plastic. The data validation indicates a mean absolute error in water absorption of ∼1.40 % while in methanol, 0.87 %. The synthesized soy-based bioplastic was analyzed instrumentally through FTIR, DTA, and TGA, which yielded satisfactory results. Other physical properties like solubility, biodegradability, and chemical reactivity were also studied in the laboratory. The combination of soy, corn, glycerol, vinegar, and water was optimized using the Response Surface Methodology (RSM). This unique combination was chosen for its potential to produce a high-quality, biodegradable biomass-based plastic, thereby contributing to the development of sustainable materials.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100596"},"PeriodicalIF":0.0,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735252","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":"Hydrophilic and superoleophobic GO-TiO2 PVDF/PEI membrane with antifouling properties for efficient oil-water separation","authors":"Mitushi Agrawal ,&nbsp;Triparna Chakraborty ,&nbsp;Dharmveer Yadav ,&nbsp;Sumit Saxena ,&nbsp;Shobha Shukla","doi":"10.1016/j.nxmate.2025.100618","DOIUrl":"10.1016/j.nxmate.2025.100618","url":null,"abstract":"<div><div>The separation of oil in complex microemulsions has challenges with significant implications, particularly in industries such as food processing, textiles, paint, pharmaceuticals and refineries. Conventional methods often fail to achieve stable and efficient separation, necessitating the use of advanced membrane technologies. This study investigates the integration of graphene oxide (GO) and titanium dioxide (TiO₂) nanoparticles into a poly(vinylidene fluoride)/poly(ethyleneimine) (PV/PEI) membrane to enhance the separation of micro-emulsified oil from water. The addition of GO/TiO₂ (4 %) imparts greater smoothness to the membrane surface, which is otherwise lacking in the pristine PV/PEI membrane; it also enhances hydrophilicity, thereby improving its antifouling properties. Incorporation of GO/TiO₂ enhances the pure water permeability of the membrane up to 2122.4 L/m².h.bar. The results demonstrate the potential of GO-TiO₂ incorporated PV/PEI membrane as a super-oleophobic material with an underwater contact angle of 150° ± 3°. The mixed-matrix membranes exhibit a three-fold increase in oil-water separation compared to the pristine membranes. The hydrophilic nature and high surface energy of the composite make it effective in separating stable micro-emulsified oil from water, contributing to environmental sustainability and technological advancements in various industries. Moreover, the membrane’s cost-effectiveness and scalability make it suitable for large-scale industrial applications, enhancing its practical viability.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100618"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715351","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":"Energy density comparable with Li-ion batteries from aqueous supercapatteries of PANI/V2O5/SnO2 nanocomposite and its green electrolytes","authors":"Aranganathan Viswanathan,&nbsp;Theertha Premalatha Ramesh,&nbsp;Megha Naik,&nbsp;Adka Nityananda Shetty","doi":"10.1016/j.nxmate.2025.100622","DOIUrl":"10.1016/j.nxmate.2025.100622","url":null,"abstract":"<div><div>The PANI53.85 %: V₂O₅34.62 %: SnO₂11.53 % (PVS) ternary nanocomposite synthesized by <em>insitu</em> synthesis as supercapattery electrode material has exhibited energy density (<em>E</em>) equivalent to that of Li-ion batteries as the PVS furnishes an impressive <em>E</em> of 114.13 W h kg^<img>1 with a high power density (<em>P</em>) of 2.400 kW kg^<img>1 at 2 A g^<img>1 in real 2 EL-supercapattery cell set up with low potential window (1.2 V) provided by 1 M H₂SO₄. The energy storage performance resulted by PVS is, a specific capacity (<em>Q</em>) of 684.8 C g^<img>1, at 2 A g^<img>1. The PVS is robust to withstand its energy storage characters up to 13600 cycles at 0.4 V s^<img>1. The Li-ion supercapattery device of PVS made with a green electrolyte exhibited a <em>Q</em> of 672.0 C g^<img>1, <em>E</em> of 112.0 W h kg^<img>1 and <em>P</em> of 1.200 kW kg^<img>1 at 1 A g^<img>1_.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100622"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735253","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":"Optimization of chitosan/polyvinyl alcohol/lemongrass hydrochar composite beads for the removal of azo dyes in water","authors":"Patricia Anne P. Correa,&nbsp;Sean Francis O. Buenaventura,&nbsp;Justine Rae S. Santos,&nbsp;Edgar Clyde R. Lopez","doi":"10.1016/j.nxmate.2025.100621","DOIUrl":"10.1016/j.nxmate.2025.100621","url":null,"abstract":"<div><div>This study explores the potential of chitosan (CS)/polyvinyl alcohol (PVA)/lemongrass hydrochar (LGHC) composite beads as efficient adsorbents for azo dye removal for the first time, demonstrating their high efficacy and sustainability. Unlike conventional adsorbents, these composite beads incorporate LGHC, a low-cost, renewable biomass-derived material, and sustainable polymers (CS and PVA), offering an eco-friendly and cost-effective alternative for industrial dye removal. The optimal composition of the composite beads was determined to be 2.00 wt% CS, 862.70 ppm LGHC, and 0.50 wt% PVA, achieving impressive sorption capacities of 22.30 mg/g for methyl orange, 57.73 mg/g for congo red, and 74.20 mg/g for methyl red. The composite beads featured a porous structure, and a composition enriched with carbon, oxygen, and nitrogen, facilitating dye removal through electrostatic interactions, hydrogen bonding, and π-π stacking. While their sorption capacities are comparable to conventional adsorbents, the incorporation of biomass-derived hydrochar and sustainable polymers enhances their environmental viability. This study underscores the potential of CS/PVA/LGHC composite beads as a scalable, eco-friendly solution for mitigating industrial dye pollution, contributing to cleaner water systems and greater environmental sustainability.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100621"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715347","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":"Reusable SnSx filled PE+PET non-woven bag for effective degradation of cationic and anionic dyes","authors":"Jyoti Bala Kaundal,&nbsp;Y.C. Goswami","doi":"10.1016/j.nxmate.2025.100620","DOIUrl":"10.1016/j.nxmate.2025.100620","url":null,"abstract":"<div><div>This study explores the hydrothermal synthesis of Tin sulphide (SnS_x) nanoparticles at various pH levels and their application in the degradation of cationic and anionic dyes. The adjustment of pH during synthesis was found to significantly influence the crystal phase, size, and consequently, the optical and electronic properties of the nanoparticles. Characterization techniques such as Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) revealed that the nanoparticles possess orthorhombic structures with average sizes ranging from 10 nm to 26 nm. These nanoparticles were employed to create filters that demonstrated exceptional reusability and stability over three cycles of degrading methyl blue (MB) and methyl red (MR) dyes. Notably, tin sulfide nanoparticles synthesised at low pH showed remarkable efficiency in degrading methyl red, indicating their potential for environmentally friendly water treatment applications.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100620"},"PeriodicalIF":0.0,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735251","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":"Development of CuO-enhanced soybean protein isolate biofilms with antioxidant, photocatalytic, and antimicrobial properties for food packaging applications","authors":"Ankit Dhayal ,&nbsp;Harish Kumar ,&nbsp;Gaman Kumar ,&nbsp;Shaurya Prakash ,&nbsp;Ankita Yadav ,&nbsp;Mettle Brahma","doi":"10.1016/j.nxmate.2025.100616","DOIUrl":"10.1016/j.nxmate.2025.100616","url":null,"abstract":"<div><div>This work aimed to combine the unique properties of Soybean Protein Isolate (SPI) with CuO nanoparticles (NPs) at different concentrations (1 %, 3 %, and 5 %). Three different composite biofilms comprised of SPI/CuO NPs were fabricated by the solution casting method. The CuO NPs lead to a denser, tougher, and flexible biofilm. Fourier transform infrared spectroscopic characterization validated the interaction between the NPs and the SPI matrix. CuO NPs enhanced the mechanical characteristics of the SPI-based biofilm. The XRD and SEM predicted 80–100 nm size of CuO NPs and 540 μm thickness of the film. The SPI-based film exhibited antioxidant activity due to the inclusion of CuO NPs. The biofilm also shows 86.02 % photocatalytic activity against methyl red dye. The biofilm exhibited concentration dependent bacteriostatic effects on <em>S. aureus</em>, <em>E. coli</em>, and <em>C. albicans</em> bacteria with a comparable zone of inhibition to standard antibiotics. In comparison to non-cancerous cells, CuO-based SPI films demonstrated higher cytotoxicity against malignant cells. A rise in the CuO NPs concentration greatly enhanced the photocatalytic, antioxidant, and anticancer activity. CuO NPs increase the endurance of biofilm that can be used to preserve or store food susceptible to microbial deterioration and hence a possible use in the food packaging, storing, and transport sector.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100616"},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715348","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":"Data carriers for real-time tracking and monitoring in smart, intelligent packaging applications: A technological review","authors":"Annu Kumari,&nbsp;Kirtiraj K. Gaikwad","doi":"10.1016/j.nxmate.2025.100591","DOIUrl":"10.1016/j.nxmate.2025.100591","url":null,"abstract":"<div><div>Smart packaging represents a cutting-edge approach, incorporating various data carriers such as RFID (Radio-frequency identification), NFC (Near Field Communication), QR (Quick Response) codes, barcodes, Data Matrix codes, and Bluetooth beacons to enhance packaging functionality and interactivity. These data carriers facilitate real-time tracking, monitoring, and communication between products and stakeholders across the logistics and supply chain. Smart packaging ensures product authenticity, extends shelf life, and improves consumer engagement by integrating smart sensors and wireless communication technologies. This review examines the types of data carriers used in smart packaging, highlighting their applications, benefits, challenges, and emerging trends shaping intelligent packaging systems' future. The integration of these technologies improves logistics and inventory management, enhances consumer safety, and promotes sustainability efforts.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"8 ","pages":"Article 100591"},"PeriodicalIF":0.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715467","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}