Applied Nanoscience最新文献

{"title":"Concentration-dependent photokinetics of rhodamine B/TiO2 systems under sunlight and laser exposure : a route toward ultrafast optical response media","authors":"Sabreen J. Jassem,&nbsp;Rawaa A. Faris,&nbsp;Zainab F. Mahdi","doi":"10.1007/s13204-026-03161-x","DOIUrl":"10.1007/s13204-026-03161-x","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates the concentration-dependent photokinetics of Rhodamine B (RhB) in the presence of Anatase TiO₂ under natural sunlight and 532 nm laser irradiation (2.19 × 10³ and 2.07 × 10⁴ W·m⁻²). At 2.09 × 10⁻⁶ M, high-power laser irradiation yielded the highest apparent rate constant (k = 7.73 × 10⁻³ min⁻¹; t½ = 89.7 min), whereas at 2.09 × 10⁻⁷ M, sunlight showed superior performance (k = 3.61 × 10⁻² min⁻¹; t½ = 19.2 min), highlighting the role of photon flux and spectral distribution. Spectroscopic analyses (UV–Vis, PL, FTIR, DRS) support a dye-sensitized charge-transfer mechanism, where photoexcited RhB injects electrons into the TiO₂ conduction band. Kinetic modeling (PFO, PSO, Langmuir–Hinshelwood) reveals concentration-dependent apparent behavior, transitioning from surface-reaction-dominated to sensitization-driven pathways. In particular, the degradation rate on high-power laser irradiation (2.09 × 10⁻⁶ M) was almost 2 orders of magnitude greater than it was under low-power irradiation, emphasizing the importance of photon flux. These findings demonstrate that photocatalytic performance is governed by the combined effects of photon flux, spectral distribution, and dye concentration, providing a basis for designing tunable light-driven systems.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 3","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147754442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetostatic surface-wave–driven giant electromagnetic power enhancement in multiferroic BiFeO3 ceramics","authors":"Adrielson Dias,&nbsp;Thiago Ferro,&nbsp;Monalisa Cavalcante,&nbsp;José Laurentino,&nbsp;Francisco Estrada,&nbsp;José Holanda","doi":"10.1007/s13204-026-03164-8","DOIUrl":"10.1007/s13204-026-03164-8","url":null,"abstract":"<div><p>We report an experimental and theoretical investigation of the propagation of radio-frequency electromagnetic pulses (0.1–50 MHz) along the surface of multiferroic BiFeO₃ (BFO) ceramics subjected to oscillating magnetic fields. A pronounced enhancement of the transmitted electromagnetic power is observed, strongly dependent on the magnetic-field configuration, excitation frequency, and propagation geometry. A maximum amplification of approximately 240% is achieved when the RF pulse propagates perpendicular to both the static and oscillating magnetic fields. The phenomenon is interpreted in terms of magnetostatic surface modes described within the Damon–Eshbach theoretical framework. Dispersion simulations and experimental measurements show strong quantitative agreement, with high fitting coefficients and minimal deviations in peak-field positions, demonstrating that the amplification originates from field-driven excitation of magnetostatic surface modes associated with uncompensated surface spins. These findings establish a robust mechanism for magnetically tunable electromagnetic amplification in multiferroic ceramics and highlight the technological potential of BiFeO₃ for advanced sensing and RF power modulation applications.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 3","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13204-026-03164-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147754391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-Extract Driven AgCl Nanoparticles (AgCl-NP): Mechanistic Insights into Bioactivity, Ecotoxicity, and Targeted Molecular Interactions","authors":"Nagarajan Kalimuthua,&nbsp;S. Subashchandrabose,&nbsp;C. Meganathan","doi":"10.1007/s13204-026-03158-6","DOIUrl":"10.1007/s13204-026-03158-6","url":null,"abstract":"<div>\u0000 \u0000 <p>A sustainable polyherbal nanotechnology platform derived from <i>Allium sativum</i> and <i>Acorus calamus</i> was developed for multifunctional biomedical and environmental applications aligned with the United Nations Sustainable Development Goals (SDGs 3, 6 and 12). UV–Visible spectroscopy confirmed nanoparticle formation with a characteristic surface plasmon resonance peak at ~ 430 nm, suggesting the formation of stable spherical nanoparticles. GC–MS analysis identified 23 phytoconstituents, with β-asarone as the predominant compound (55.21%), followed by 2-vinylfuran (9.92%) and bis(trimethylsilyl)methylphosphonate (3.48%). FTIR spectra demonstrated functional groups, including hydroxyl, carbonyl, aromatic, and ether groups involved in nanoparticle reduction and stabilization. Morphological characterization by AFM and SEM revealed heterogeneous quasi-spherical nanoparticles with porous hierarchical architecture and nanoscale surface asperities (100–300 nm). Density Functional Theory (DFT) calculations for β-asarone showed HOMO and LUMO energies of − 5.07 eV and − 0.52 eV, respectively, with a band gap of 4.55 eV, indicating high reactivity and electron-donating potential. Molecular docking analysis revealed a strong interaction of β-asarone with cyclin-dependent kinase-5 (CDK5), involving key residues Lys33, Phe80, Glu81, Val18, and Asn144 within the ATP-binding pocket. Antioxidant analysis using the phosphomolybdenum assay demonstrated enhanced activity of AgCl-NPs (absorbance = 0.102), which was approximately 5.17-fold higher than the crude extract (0.0197). Antibacterial assays showed concentration-dependent inhibition against <i>Escherichia coli</i> (9–21 mm), <i>Bacillus subtilis</i> (12–24 mm), and <i>Vibrio cholerae</i> (8–20 mm). Ecotoxicological evaluation using the earthworm <i>Eudrilus eugeniae</i> revealed comparatively lower toxicity of AgCl-NPs (LC₅₀ = 28.75 mg kg⁻¹) compared to synthetic pesticides such as deltamethrin (LC₅₀ = 3.42 mg kg⁻¹). Additionally, the polyherbal extract exhibited potent larvicidal activity against mosquito larvae, with mortality increasing from 3.06% at 0.5 mg L⁻¹ to 94.9% at 4.5 mg L⁻¹. These findings demonstrate that the dual-herbal extract acts as an efficient bio-reductant and functionalizing agent for nanoparticle synthesis, producing multifunctional AgCl-NPs with enhanced antioxidant, antimicrobial, and eco-friendly pesticidal properties, highlighting their potential for applications in nanomedicine, environmental management, and vector control.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and characterization of Cobalt nickel oxide nanoparticles by co-precipitation method for electrochemical investigation of adenine and guanine","authors":"G. Y. Swapna,&nbsp;K. R Mahanthesha,&nbsp;K. R Rajashekar,&nbsp;K. G. Chaithra,&nbsp;Rohini B Anagawadi","doi":"10.1007/s13204-026-03160-y","DOIUrl":"10.1007/s13204-026-03160-y","url":null,"abstract":"<div>\u0000 \u0000 <p>The cobalt nickel oxide nanoparticles (CNO NPs) were produced by the co-precipitation method, which were subsequently characterized by X-ray diffraction studies (XRD), Fourier-transform infrared spectroscopy (FT-IR), Field emission scanning electron spectroscopy (FE-SEM), energy dispersive X-ray analysis (EDAX) and elemental mapping analysis. Cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) studies were investigated CNO NPs. Adenine (AD) and guanine (GU) were investigated electrochemically using scan rate variation, which has verified that all analytes exhibit controlled by diffusion process. The total number of electrons and protons were determined by pH studies, and the limit of detection and quantification were obtained using varying analytes concentrations. A simultaneous investigation was conducted for AD and GU. The CNO/MGCE sensor demonstrated excellent repeatability, reproducibility, stability and also real sample analysis. In the reproducibility assessment, RSD values were determined to be 3.4% for AD and 5.3% for GU, along with excellent recovery in real sample analysis.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Larvicidal potential of pH-modulated titanium dioxide nanoparticles against fruit fly (Bactocera cucurbitae) under laboratory conditions","authors":"Neelam Thakur,&nbsp;Nikita Sharma,&nbsp;Puneet Negi","doi":"10.1007/s13204-026-03156-8","DOIUrl":"10.1007/s13204-026-03156-8","url":null,"abstract":"<div><p>Fruit fly larvae cause extensive damage to horticultural crops and are difficult to manage as they are resistance to conventional insecticides. In this context, titanium dioxide nanoparticles, induce oxidative stress and physical toxicity in insects, offer a promising nanotechnology-based alternative for incorporation into integrated pest management programs. Titanium dioxide nanoparticles were synthesized using a sol–gel auto-combustion technique under three different pH conditions-acidic (~ 5), neutral (~ 7), and basic (~ 9)-to assess the influence of synthesis pH on larvicidal activity. As limited research explains how pH-controlled synthesis alters nanoparticle toxicity across fruit fly larval stages, with scarce instar-specific comparisons, hindering optimized, stage-targeted application of nanomaterials. Bioassays were conducted (2023–2024) under controlled conditions (28–30 °C and 60–70% relative humidity) to observe the mortality against 2nd and 3rd instars of <i>Bactrocera cucurbitae</i> after 24, 48, 72 and 96 h at 50, 150, 250, 350 and 450 ppm doses per 10 larvae. Results indicated that 2nd instar maggots were more susceptible to these nanoparticles across exposure periods, with the highest mortality observed at the tested dose. 3rd instar maggots also showed significant susceptibility, under basic pH conditions (~ 9). Overall, the study demonstrates that these nanoparticles possess strong insecticidal potential against larval stages of <i>B. cucurbitae</i>, and that their efficacy is influenced by synthesis pH. The present study is one of the first to demonstrate that the larvicidal efficacy of titanium dioxide nanoparticles against <i>B. cucurbitae</i> which is significantly influenced by the pH conditions used during nanoparticle synthesis. The work provides clear evidence of instar-specific susceptibility, showing higher sensitivity of 2nd instar maggots and enhanced toxicity was recorded under basic pH (~ 9) against 3rd instar larvae. Unlike previous studies that report general insecticidal effects of titanium dioxide nanoparticles, this study demonstrates for the first time that larvicidal efficacy against <i>B. cucurbitae</i> is strongly dependent on the pH conditions used during nanoparticle synthesis and supporting their environmentally safer integration into management strategies.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Immediate and temporal evolution of the localized surface plasmon resonance and optical absorption edge in colloidal silver after 532 nm pulsed-laser irradiation","authors":"Miguel A. Valverde-Alva,&nbsp;Hector E. Paredes-Aguilar,&nbsp;Julio D. Alvarado-Lozano,&nbsp;Jhenry F. Agreda-Delgado,&nbsp;Claver W. Aldama-Reyna,&nbsp;Luis M. Angelats-Silva","doi":"10.1007/s13204-026-03155-9","DOIUrl":"10.1007/s13204-026-03155-9","url":null,"abstract":"<div><p>Silver nanoparticles were synthesized by laser ablation of a metallic silver target in deionized water using focused 1064 nm nanosecond pulses. A fraction of the colloid was subsequently irradiated with unfocused 532 nm pulses under three regimes to investigate laser-induced modifications in optical response, hydrodynamic size, and colloidal evolution. UV–Vis spectroscopy was performed immediately after irradiation and during 21 days of storage, while hydrodynamic size and zeta potential were measured after 24 h in parallel batches. Immediately after irradiation, all treated samples exhibited a blue shift of the localized surface plasmon resonance (LSPR), a reduced spectral width (FWHM), and increased absorbance, consistent with nanoparticle fragmentation. The optical absorption edge derived from Tauc analysis showed high sensitivity to the irradiation regime, providing a complementary descriptor to LSPR for assessing size-dependent changes and early-stage evolution. During storage, all samples exhibited a red shift of the LSPR, spectral broadening, and a decrease in the optical edge, reflecting nanoparticle association and increasing heterogeneity. Zeta-potential measurements revealed less negative values for the irradiated colloids, indicating reduced electrostatic stabilization. Although optical and electrostatic descriptors did not yield a unique stability ranking among irradiated samples, all parameters consistently identified the non-irradiated colloid as the relatively most stable system. Overall, these results demonstrate that the operational optical absorption edge is a sensitive and complementary metric for evaluating laser-induced modifications and long-term colloidal behavior in silver nanoparticle systems.</p></div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimized distributed power flow control for hybrid energy systems with artificial flora algorithm and high-gain converters","authors":"S. Priyanga,&nbsp;R. Rajagopal","doi":"10.1007/s13204-026-03153-x","DOIUrl":"10.1007/s13204-026-03153-x","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper develops the integration of Photovoltaic (PV) and Doubly Fed Induction Generator (DFIG) based Wind Systems into a grid system utilizing an optimized Converter along with advanced controller. The central idea is to design a system around a common DC-link architecture, enabling coordinated power flow from both renewable sources. The key contribution of the proposed concept is the introduction of a High Gain Boost Integrated Zeta (HGBIZ) converter for the PV subsystem. This converter provides a high voltage conversion ratio with reduced ripple and improved efficiency, allowing low-level PV voltage to be effectively boosted to the required DC-link level without multiple conversion stages. Besides, another significant contribution is the Artificial Flora Optimization (AFO) based controller optimizing the controller parameters to achieve better dynamic response and stabilized DC link voltage. The Pulse Width Modulation (PWM) rectifier is adopted, which ensures the DFIG seamless connection to the grid. The rectifier also provides reactive power support to enhance grid stability. The PI controller enhances the PWM rectifier’s performance by providing stability, fast response and improved power quality. It maintains synchronization and prevents instability during transient events. Simultaneously, the Internet of Things (IoT) platform is employed for monitoring the parameters including <span>({text{V}}_{text{PV}},{text{V}}_{text{DFIG}},{text{V}}_{text{dc}},text{soc}, {text{V}}_{text{B}},{text{I}}_{text{B}}, {text{V}}_{text{G}}text{ and }{text{I}}_{text{G}})</span>. Simulation results demonstrate the efficacy of the proposed system with regard of power quality and grid stability.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reusable screen-printed electrochemical sensor for real-time glucose monitoring","authors":"Kirubha Perumal,&nbsp;Mohana Priya Kandan,&nbsp;Sreeja Balakrishnapillai Suseela,&nbsp;Alexpandiyan Baskar,&nbsp;Malini Azhaganandhan,&nbsp;Alageshwaran Kannan,&nbsp;Melvin C. Jose","doi":"10.1007/s13204-026-03149-7","DOIUrl":"10.1007/s13204-026-03149-7","url":null,"abstract":"<div>\u0000 \u0000 <p>A reusable non-enzymatic glucose sensor (RGS) was created using a modular 3D-printed housing and a 2D plotter-based screen-printing technique in response to the increasing need for inexpensive, reusable, and low-waste glucose monitoring devices. The reference and counter electrodes were Ag/AgCl electrodes, while the working electrode was a copper nanoparticle (CuNP) ink. Optimizing electrode geometry with COMSOL Multiphysics led to increased sensitivity and consistent current distribution. XRD and FTIR structural characterisation verified the CuNP ink’s crystalline and chemical characteristics. A linear amperometric response to glucose concentrations ranging from 5 to 30 mM was shown by electrochemical evaluation in phosphate-buffered saline (PBS), with a sensitivity of 451.82 µA mM⁻¹ cm⁻² and a detection limit of 0.3 mM. With good repeatability and reproducibility across several printed electrodes, the sensor demonstrated outstanding analytical performance. Studies on long-term stability revealed a 97.18% signal retention over a 15-day period. Consistent current responses and improved reusability were made possible by the interchangeable working-electrode cartridge. A scalable and sustainable fabrication approach for creating flexible and reusable glucose-sensing devices appropriate for regular monitoring applications is presented in this work.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147561076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A unique biomimetic preservation study of fungal-capped CdS nanoparticles for sustainable photocatalysis","authors":"Rashmi Sanghi,&nbsp;Ramanpreet Kaur,&nbsp;Deeksha Maurya,&nbsp;Ajit Sharma","doi":"10.1007/s13204-025-03135-5","DOIUrl":"10.1007/s13204-025-03135-5","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents a rare and unprecedented investigation into the long-term photostability and physicochemical integrity of fungal-capped CdS nanoparticles preserved for more than 15 years since their original biomimetic synthesis. Only a very limited quantity of this sample remained, and it was therefore used preciously and judiciously, making this a unique, one-time retrospective analysis that cannot be raeproduced under identical biological or environmental conditions. To date, no such long-term stability evaluation of biomimetically synthesized CdS nanoparticles has ever been reported, establishing the novelty and scientific value of this work. A comprehensive suite of characterization techniques—including powder X-ray diffraction, UV–Vis absorption spectroscopy, photoluminescence, FTIR, SEM, FESEM, and thermogravimetric analysis—reveals that the aged CdS nanoparticles have retained their crystalline structure, biomolecular capping signatures, optical absorption features, and morphological coherence even after 15 years of ambient storage. Comparative evaluation with archival data from the time of synthesis clearly demonstrated that the characteristic diffraction patterns and chemical signatures remained preserved, confirming the long-term retention of both structural and surface features.Photocatalytic studies demonstrate sustained high efficiency in degrading textile dyes such as Methylene Blue and Congo Red, with the 15-year-old CdS nanoparticles maintaining their chemical identity and showing excellent reusability across five cycles. These findings highlight the remarkable inherent stability and the natural endurance imparted by fungal-mediated biomimetic synthesis, enabling long-term preservation without external stabilizing agents.Overall, this work provides the first real-time evidence of time-enduring structural, optical, and functional stability in biomimetically synthesized semiconductor nanoparticles, underscoring their potential for environmental remediation, sustainable materials development, and long-term photocatalytic applications.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the self-assembly and anion recognition properties of p-phenylenediamine-based polyurea derivatives","authors":"Zaiwen Yang,&nbsp;Xianzhi Wang","doi":"10.1007/s13204-026-03152-y","DOIUrl":"10.1007/s13204-026-03152-y","url":null,"abstract":"<div>\u0000 \u0000 <p>Self-assembly is a fundamental phenomenon in materials science that enables molecules to spontaneously organize into well-defined nanostructures without external assistance. In this study, p-phenylenediamine-based polyureas were synthesized via polycondensation and investigated for their combined self-assembly behavior and anion recognition capability. Structural integrity of the polymers was confirmed using NMR, FTIR, and XRD analyses. Solvent-dependent self-assembly examined by Dynamic Light Scattering (DLS) and Atomic Force Microscopy (AFM) revealed methanol as the most effective medium, producing uniform nanoparticles with an average diameter of 175.23 nm and a low polydispersity index (PDI = 0.174). Anion recognition evaluated through UV–Vis titration demonstrated pronounced selectivity toward phosphate, exhibiting the highest binding constant (4182 M⁻¹) and the lowest detection limit (9.33 µM). These results directly link the synthesis objective to observed performance trends, highlighting the potential of p-phenylenediamine-based polyureas as scalable and durable platforms for selective ion sensing and environmental monitoring applications.</p>\u0000 </div>","PeriodicalId":471,"journal":{"name":"Applied Nanoscience","volume":"16 2","pages":""},"PeriodicalIF":3.674,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}