Plasmonics最新文献

{"title":"SERS Substrate Based on COFs@Ag for Rapid Detection of Pefloxacin","authors":"Kun Chen,&nbsp;Chaoqun Ma,&nbsp;Guoqing Chen,&nbsp;Taiqun Yang,&nbsp;Hui Gao,&nbsp;Lei Li,&nbsp;Anqi Hu,&nbsp;Jun Cao,&nbsp;Chenkai Zheng,&nbsp;Longyao Ma,&nbsp;Zehao Chen","doi":"10.1007/s11468-025-02935-3","DOIUrl":"10.1007/s11468-025-02935-3","url":null,"abstract":"<div><p>The detection of pefloxacin (PEF) in milk is of significant importance for food safety. Traditional methods for detecting PEF often rely on techniques such as high-performance liquid chromatography (HPLC), which are complex and time-consuming. This article introduces a surface-enhanced Raman scattering (SERS) substrate based on a composite of covalent organic frameworks (COFs) and silver nanoparticles (AgNPs) for the rapid detection of PEF in milk. After testing PEF in both water and milk, the detection limits were calculated to be 6.31 μg/L for water and 82 μg/L for milk, with correlation coefficients of 0.991 and 0.998, respectively. Furthermore, the average recovery rate of PEF in milk ranged from 96.25% to 106.17%, with a relative standard deviation (RSD) of 4.32% to 8.88%. This work offers a simple and rapid method for detecting PEF in milk.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5783 - 5791"},"PeriodicalIF":4.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Efficiency Wideband Graphene-Based Ag-In2Se3-Al2O3 Surface Plasmon Resonance Solar Absorber for Thermal Energy Applications Optimized using Machine Learning","authors":"Bo Bo Han,&nbsp;Yahya Ali Abdelrahman Ali,&nbsp;Taoufik Saidani,&nbsp;Shobhit K. Patel,&nbsp;Abdulkarem H. M. Almawgani,&nbsp;Basim Ahmad Alabsi","doi":"10.1007/s11468-025-02927-3","DOIUrl":"10.1007/s11468-025-02927-3","url":null,"abstract":"<div><p>Solar absorbers which provide higher energy output and cause less environmental damage are used in various applications. Thermal applications, such as heat conversions, are commonly used of solar absorbers. Adding graphene layers by Finite Element Method can further improve the efficiency of solar structure and the current absorber layers are made of silver (Ag), indium (III) selenide (In₂Se₃), and aluminum oxide (Al₂O₃) in the resonator, substrate, and base sections, respectively. The graphene solar absorber exhibits wideband performance, with efficiency exceeding 90% at 2800 nm and 95% at 1350 nm. Machine learning optimization is used to improve the structural parameter and improve efficiency. The current solar absorber invention can be applied to various thermal energy purposes, including industrial processes, electricity production, boiler feed, water heating, and power storage. These applications contribute to improving energy efficiency in multiple sectors.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5767 - 5782"},"PeriodicalIF":4.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of Urine Glucose Concentration Using Zirconium Nitride Surface Plasmon Resonance Sensor","authors":"Rajeev Kumar,&nbsp;Yash Sharma,&nbsp;Sudhakar T.,&nbsp;Subhashree Ray,&nbsp;Rekha M. M.,&nbsp;Bhavik Jain,&nbsp;Amrindra Pal","doi":"10.1007/s11468-025-02853-4","DOIUrl":"10.1007/s11468-025-02853-4","url":null,"abstract":"<div><p>A zirconium nitride (ZrN)-coated surface plasmon resonance (SPR) biosensor that targets particular biological components has been designed and simulated in this study. We illustrated the detection of glucose concentration in urine samples using numerical simulation based on the finite element method (FEM). The maximum angular sensitivity of the sensor was 315.74°/RIU at 0–15 mg/dl (normal range) and 10 g/dl of glucose concentration using refractive indices with a thickness of 48 nm and 2 nm of Ag and ZrN layer. Moreover, for the various concentrations like 0.625, 1.25, 2.5, 5, and 10 g/dl, the sensitivity of 245.22°/RIU, 247.8°/RIU, 250.57°/RIU, 259.93°/RIU, and 283.42°/RIU are attained at minimum reflectivity (<i>R</i>_min) respectively. The corresponding penetration depth (PD) values are observed at 214.8, 216.4, 220.6, 222.3, 230.5, and 233.3 nm, respectively. Therefore, the improved performance of the current SPR biosensor opens a new field in medical science and is suitable for urine glucose detection.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5757 - 5766"},"PeriodicalIF":4.3,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mouse Tissue Imaging by Random Laser of Plasmonic Two-Dimensional Array","authors":"M. Lateef,&nbsp;W. A. Aldaim,&nbsp;S. F. Haddawi,&nbsp;S. M. Hamidi","doi":"10.1007/s11468-025-02800-3","DOIUrl":"10.1007/s11468-025-02800-3","url":null,"abstract":"<div><p>Given the major applications of high-resolution and non-destructive bio-imaging, a plasmonic waveguide-assisted imaging system based on random lasing is proposed here by helping micro-ring arrays covered with the gold/graphene layer and Rh6G dye. In order to achieve this objective, we employ a laser writing system to create micro-ring arrays and subsequently cover them with a plasmonic gold thin film using a sputtering machine. Additionally, the chemical vapor deposition method is employed to generate the graphene layer. To use this medium as random laser active media, we cover it with Rh6G dye and PVP polymer as the top high index layer to get more localization of light. After theoretically and experimentally evaluating the plasmonic substrate, we use the second harmonic generation of Nd:YAG laser as the source and record the random lasing of the sample under 45° via spectrometer. Our results show that the samples without the PVP layer yield a coherent random laser with about 6 nm and 1.4 nm in the full width at half maximum (FWHM) and threshold energy of 3.17 mJ and 1.42 mJ for concentrations 10⁻⁵ and 10⁻⁴, respectively, while finding that the laser threshold and FWHM are decreased by the sample with PVP layer reaching from 2.62 mJ and 5 nm to 1.95 mJ and 1.2 nm, respectively. This corresponded to the simulation part, in which the PVP layer enhanced the field amplitude significantly. Finally, we record the images of mouse tissue by the CCD camera. These findings provided a simple and efficient way for the realization of low-threshold random lasers at low cost.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5749 - 5756"},"PeriodicalIF":4.3,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements in Fiber and Prism-Based Surface Plasmon Resonance Sensors: Comparative Analysis and Applications in Disease Detection and Biosensing","authors":"Purnendu Shekhar Pandey,&nbsp;Azhar Shadab,&nbsp;Malatesh Akkur,&nbsp;Yashpal Yadav,&nbsp;Manoj Kumar,&nbsp;Mahaveer Singh Naruka,&nbsp;Yadvendra Singh,&nbsp;Rajesh Singh","doi":"10.1007/s11468-024-02745-z","DOIUrl":"10.1007/s11468-024-02745-z","url":null,"abstract":"<div><p>The surface plasmon resonance (SPR) technique has proven indispensable as an optical sensing method owing to its extraordinary sensitivity to changes in refractive index, making it crucial for diagnosis of disease diagnostics, environmental assessment, and pharmaceutical development. This review compares the two most common configurations of SPR sensors: fiber-based and prism-based SPR sensors. This comprehensive review covers various sensor configurations, geometric shapes, and fiber types, advantages of each in terms of integration, sensitivity, and performance enhancement. Significant applications include diagnosis of Alzheimer’s disease, cardiovascular conditions, cancer, and diabetes. Fiber SPR sensors offer real-time monitoring, mobility, and field flexibility; on the other hand, prism-based SPR sensors provide a higher sensitivity and are more relevant for laboratory applications that demand accuracy. The integration of advanced nanomaterials like graphene and MXenes has further improved both systems’ sensitivity and stability. Recent advances in miniaturization and multiplexing enabled them to be adapted for real-time biomarker detection of various medical diagnostics based on environmental safety, providing the tools of modern biosensing technology.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7569 - 7595"},"PeriodicalIF":4.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiple Bound States in the Continuum of the Metasurface with Multiple Nanopillars","authors":"Suxia Xie,&nbsp;Aodong Shen,&nbsp;Zhaoyou Zeng,&nbsp;Siyi Sun,&nbsp;Meidi Zhang","doi":"10.1007/s11468-024-02738-y","DOIUrl":"10.1007/s11468-024-02738-y","url":null,"abstract":"<div><p>The bound states in the continuum (BICs) of the photonic crystal (PhC) formed by period rectangular nanopillar arrays are demonstrated. By varying the structural parameters of rectangular nanopillar array, it is proved that the angle of incident light, the surrounding dielectric, and the number of nanopillars in a period can regulate BICs effectively. With the change of the number of nanopillar and structural parameters in period, the locations of both at-Γ BICs and off-Γ BICs change and the ultrahigh-quality factor (<i>Q</i>-factor) of BICs are obtained with a value more than 10⁶, which means the light has been completely confined in this nanopillar array structure. The BIC modes of this structure are related to the structural parameters of the metasurface, and the BIC has a high sensitivity to the change of the refractive index of the surrounding medium. This advantage of high sensitivity is conducive to the design of new photonic devices based on BIC, such as lasers, filters, and sensors.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5735 - 5747"},"PeriodicalIF":4.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Analysis of Surface Plasmon Resonance-Based Refractive Index Biosensor for Detection of Colorectal Cancer with Machine Learning Approach","authors":"Yahya Ali Abdelrahman Ali,&nbsp;Trupti Kamani,&nbsp;Shobhit K. Patel,&nbsp;Taoufik Saidani,&nbsp;Abdulkarem H. M. Almawgani,&nbsp;Basim Ahmad Alabsi","doi":"10.1007/s11468-024-02720-8","DOIUrl":"10.1007/s11468-024-02720-8","url":null,"abstract":"<div><p>The preliminary detection of colon cancer serves as critically important in optimizing patient outcomes and chances of survival. A surface plasmon resonance-based refractive index biosensor provides an incredible approach to the non-invasive, superior sensitive detection of colon cancerous tumors. In this proposed work, the design and analysis of the SPR-based square within an incomplete circle refractive index biosensor (SWICRIB) for determination of the colorectal cancer has been reported. This innovative design integrates the advantages of the SPR method with a unique geometry configuration which enhances sensitivity and specificity. Our results demonstrate that SWICRIB’s superior performance in detecting low-concentration analytes makes it a promising tool for early diagnosis and monitoring of colon cancer biomarkers. This study explores the various applications of the SPR-based biosensor in identifying the refractive index contrast between normal colonic mucosa (cecum and sigmoid) and some different kinds of colorectal tumors such as tubulovillous adenomas and adenocarcinomas. The working range of the reported SWICRIB is 1870 nm to 1950 nm. By utilization of the SPR method, we measure the changes in the refractive index at the metal–dielectric interface demonstrating the potential for precise and early detection of colon cancerous cells. For the superior results with a sensitivity of 700 RIU/nm for detecting adenocarcinoma (Ad) cancer cell, the quality factor is 818.52 nm/RIU for tubulovillous adenoma (TA) cancer cell, and a figure of merit is 298.81 adenocarcinomas (Ad) cancer cell. The superior value 0.001631 has been achieved as a detection limit value. The outcomes suggest that reported SWICRIB can differentiate between healthy and cancerous tissues with high accuracy which paves the way for their integration into routine diagnostic techniques. In the reported sensor work, the machine learning (ML) functional on the width variation (4600–5200 nm) and highest <i>R</i>² evaluation explores 0.96.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7597 - 7609"},"PeriodicalIF":4.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Localized Surface Plasmon Resonance of Ag-SiO2 Core–Shell Nanowire Tetramers","authors":"Jijun Ding,&nbsp;Ziyang Liu,&nbsp;Wenkai Li,&nbsp;Caiwang Yin,&nbsp;Haixia Chen","doi":"10.1007/s11468-025-02802-1","DOIUrl":"10.1007/s11468-025-02802-1","url":null,"abstract":"<div><p>Ag@SiO₂ polymer structure model is established with the assistance of COMSOL software. The effects of SiO₂-free layer configuration and different SiO₂ thickness on the electric field distribution, absorption spectrum, and far-field radiation in the gap of different Ag nanostructures were calculated the simulation results demonstrate that the Ag@SiO₂ polymer structure exhibits two plasmon resonance modes: low energy and high energy. With an increase in SiO₂ thickness, the high energy mode is redshifted, while the low energy mode is blue shifted, and the peak of the absorption spectrum changes with the thickness of the SiO₂ layer. The alteration of the tetramer configuration enables the attainment of an octupole resonance mode, giving rise to a novel resonance absorption peak within the wavelength range of 400 to 500 nm. The maximum peak offset observed is 82 nm, a phenomenon that results in the broadening of the polymer's absorption spectrum range. This development provides a solid theoretical foundation for high-wavelength resonance coupling.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 8","pages":"5721 - 5733"},"PeriodicalIF":4.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Solar Energy Conversion in Current PV and PVT Technologies Through the Use of Metasurface Beam Splitters: A Brief Review","authors":"Md Atiqur Rahman,&nbsp;Praveen Sarikonda,&nbsp;Rajeshwari Chatterjee,&nbsp;S. M. Mozammil Hasnain","doi":"10.1007/s11468-025-02774-2","DOIUrl":"10.1007/s11468-025-02774-2","url":null,"abstract":"<div><p>Metasurfaces have attracted significant interest due to their compact, artificial interfaces with exceptional optical properties. Dielectric platforms, in particular, hold promise for nonlinear nanophotonics, enabling applications such as ultrafast optical switching and high harmonic generation, which are central to developing nonlinear metaoptics. While most research has focused on single metasurfaces, stacking optical metasurfaces is a long-term goal, although it presents substantial fabrication challenges. Pancharatnam-Berry (PB) phase-based metasurfaces provide efficient wavefront control but typically require precise polarization management. These metasurfaces are particularly valuable for manipulating circularly polarized (CP) electromagnetic waves, with applications in chiral molecule interactions and optical communication. However, traditional materials-based devices suffer from bulkiness and low efficiency. PB metasurfaces, which efficiently control CP waves across different frequency domains, are becoming increasingly important. This review covers their working principles, methods for constructing high-efficiency PB metasurfaces in both reflection and transmission geometries, and their applications in meta-lensing, meta-holography, and surface coupling, concluding with perspectives on their future development. The photonic spin Hall effect (SHE), arising from the spin–orbit interaction of photons, can be precisely controlled using metasurfaces. These devices manipulate the SHE, which results in spin-dependent splitting in both position and momentum space. Integrating PB phases through space-variant polarization manipulations in metasurfaces provides new methods for fabricating spin-Hall devices. This review highlights the role of photonic SHE in metasurfaces and explores the prospects it offers for advancing spin photonics.</p></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7547 - 7568"},"PeriodicalIF":4.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of a Novel Supermagnetic Fe3O4 Nanoparticles and their Congo Red Dye Removal, Cytotoxic, Antioxidant, and Antimicrobial Activities","authors":"Semih Gökdağ,&nbsp;Fatma Caf,&nbsp;Fulya Doğaner,&nbsp;Bülent Kaya,&nbsp;Gürkan Aykutoğlu","doi":"10.1007/s11468-025-02779-x","DOIUrl":"10.1007/s11468-025-02779-x","url":null,"abstract":"<div><p><i>Plantago</i> <i>lanceolata</i> is a traditional medicinal plant that has attracted significant interest from researchers due to the use of its physiologically active components, particularly polyphenolics (flavonoids, hydroxycinnamic acids), in various fields. The aim of this study is to synthesize iron oxide (PLE@FeNPs) nanoparticles using a green synthesis approach with <i>Plantago lanceolata</i> (<i>P. lanceolata</i>) leaf extracts, characterize them, evaluate their in vitro effects, and assess their use in the removal of Congo red (CR) from wastewater. We carried out the physicochemical characterization of the nanoparticles using UV–Vis, FT-IR, and XRD spectroscopies; TEM and SEM microscopy; and Zetasizer particle size analysis. While the distinct peaks in XRD confirm the crystalline structure, TEM has determined an average particle size (8 nm) for PLE@NPs with deformed spherical nanoparticles. The FT-IR spectra showed that bioactive compounds from <i>P. lanceolata</i> were involved in the participation of PLE@FeNPs. EDX confirmed the presence of iron in the designed PLE@FeNPs. The antibacterial, antioxidant, and anticancer analyses of the studied PLE@FeNPs revealed significant activities. We investigated the adsorption kinetics of CR on PLE@FeNPs, taking into account initial dye concentration, different pH levels, adsorbent dosages, and temperature. At optimal conditions (concentration, 50 ppm; dosage, 15 mg; pH, 8), the degradation of CR dye in sunlight was found to be 99%. The small size of PLE@NPs (8 nm) and the more negative zeta potential (− 12.2 mV) support this situation. The equilibrium data demonstrated a good fit to the Langmuir isotherm model, outperforming the Freundlich isotherm model. The results showed that the pseudo-second-order kinetic model accurately described the kinetic data. PLE@NPs exhibited significant antioxidant, antimicrobial, and anticancer activities. This situation suggests that the nanocomposition of PLE@NPs obtained through the green route may have improved efficiency due to various synergistic effects. Overall, these results pave the way for further applications in dye removal and biological applications of environmentally friendly PLE@FeNPs.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":736,"journal":{"name":"Plasmonics","volume":"20 9","pages":"7527 - 7545"},"PeriodicalIF":4.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11468-025-02779-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145090390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}