Advanced Sensor Research最新文献_第3页

Electrochemical Detection of Nitrite Based on Iron Oxide–Reduced Graphene Oxide Nanocomposite Modified Electrode in Real Water 基于氧化铁-还原氧化石墨烯纳米复合修饰电极在真实水中亚硝酸盐的电化学检测

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-21 DOI: 10.1002/adsr.202500021

Amira Ghezal, Zina Fredj, Ammar Al-Hamry, Marcos A. Gross, Leonardo G. Paterno, Mounir Ben Ali, Olfa Kanoun, Baljit Singh

{"title":"Electrochemical Detection of Nitrite Based on Iron Oxide–Reduced Graphene Oxide Nanocomposite Modified Electrode in Real Water","authors":"Amira Ghezal, Zina Fredj, Ammar Al-Hamry, Marcos A. Gross, Leonardo G. Paterno, Mounir Ben Ali, Olfa Kanoun, Baljit Singh","doi":"10.1002/adsr.202500021","DOIUrl":"10.1002/adsr.202500021","url":null,"abstract":"This work presents a screen-printed carbon electrode (SPCE) modified with iron oxide nanoparticles-reduced graphene oxide (ION-rGO) nanocomposite for the rapid and highly sensitive determination of nitrite in real water samples. The presence of both ION and rGO on the electrode surface enhances the sensing performance compared to the unmodified SPCE by reducing the charge transfer at the electrode/electrolyte interface. Under optimized conditions, it is demonstrated that the charge-transfer resistance determined from electrochemical impedance spectroscopy (EIS) scales linearly with the logarithm of nitrite concentration. Due to its unique structure, the proposed nitrite sensor displays improved performance compared to our previous work, showing a linear range of 0.1 nM to 10 µM, a correlation coefficient of 0.9936, and an ultralow LOD of 17.3 pM. The results indicate that the modified electrodes possessed remarkable catalytic activity toward nitrite oxidation. Additionally, the ION-rGO nanocomposite-based sensor exhibited high sensitivity as well as good stability and reproducibility performance. The research findings demonstrate that the proposed sensor is a potential candidate for nitrite detection in real water sample analysis, which would be helpful in monitoring and protecting our global water resources.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135485","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}

引用次数: 0

Field-Deployable Ammonia Sensor for Assessment of Wastewater Feedstocks and Their Utilization for Ammonia Synthesis 用于评价废水原料及其合成氨利用的现场可展开氨传感器

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-21 DOI: 10.1002/adsr.202500095

Ishita Goyal, Vamsi Vikram Gande, Rangasamy Savitha, Meenesh R. Singh

{"title":"Field-Deployable Ammonia Sensor for Assessment of Wastewater Feedstocks and Their Utilization for Ammonia Synthesis","authors":"Ishita Goyal, Vamsi Vikram Gande, Rangasamy Savitha, Meenesh R. Singh","doi":"10.1002/adsr.202500095","DOIUrl":"10.1002/adsr.202500095","url":null,"abstract":"Renewable energy-driven electrochemical ammonia synthesis using nitrates presents a promising pathway for producing ammonia while utilizing wastewater as a feedstock. This approach enables decentralized ammonia production and addresses environmental concerns related to nitrate pollution. If the broader goal is to use real wastewater as a feedstock, various anions and their influence on ammonia selectivity must be carefully studied. However, two significant challenges hinder its practical implementation: interference from common wastewater anions (sulfate, chloride, phosphate) and the lack of rapid, cost-effective ammonia monitoring methods suitable for process optimization. Here, an integrated solution combining fundamental studies of anion effects with an innovative paper-based detection platform is presented. This systematic investigation reveals how competing ions influence electrochemical ammonia selectivity, providing crucial insights for catalyst design. More importantly, a paper-based sensing protocol is developed that achieves sensitive ammonia quantification (10–500 µm range with 35 µm limit of detection) using merely 10 µL of sample. This field-deployable system eliminates the need for sophisticated instrumentation, delivering results three times faster than standard colorimetric assays while maintaining >90% accuracy. The sensor's robust performance enabled real-time monitoring of ammonia production from synthetic and real wastewater samples during electrochemical testing.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050954","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}

引用次数: 0

Cs2AgBiBr6 Perovskites: Designing Stable, Sensitive and Selective Eco-friendly Ozone Sensors Cs2AgBiBr6钙钛矿：设计稳定、敏感和选择性的生态友好型臭氧传感器

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-15 DOI: 10.1002/adsr.202500018

Aikaterini Argyrou, Rafaela Maria Giappa, Emmanouil Gagaoudakis, Vassilios Binas, Ioannis Remediakis, Konstantinos Brintakis, Athanasia Kostopoulou, Emmanuel Stratakis

{"title":"Cs2AgBiBr6 Perovskites: Designing Stable, Sensitive and Selective Eco-friendly Ozone Sensors","authors":"Aikaterini Argyrou, Rafaela Maria Giappa, Emmanouil Gagaoudakis, Vassilios Binas, Ioannis Remediakis, Konstantinos Brintakis, Athanasia Kostopoulou, Emmanuel Stratakis","doi":"10.1002/adsr.202500018","DOIUrl":"10.1002/adsr.202500018","url":null,"abstract":"Lead halide perovskites have shown great promise for gas sensing applications due to their ability to detect and respond to gas exposures at room temperature. However, the toxicity of lead raises concerns, hindering their widespread use. To address this limitation, this study explores the potential of the lead (Pb)-free Cs2AgBiBr6 perovskite as a sensing element for room-temperature gas detection. This eco-friendly sensor, synthesized at room temperature without the use of harmful organic solvents, operates at low voltage (0.1 V) minimizing energy consumption. The perovskite material is synthesized using a precipitation method under ambient conditions, ensuring a cost-effective and environmentally friendly fabrication process. The influence of morphology on ozone (O3) sensing performance is investigated, revealing that the microsheets exhibit the highest sensitivity. The sensor also demonstrates remarkable stability over time and under various humidity and temperature conditions, ensuring its reliable and robust performance in diverse environments. Notably, the sensor exhibits exceptional selectivity to O3 over other gases, including nitric oxide (NO), hydrogen (H2), methane (CH4), and carbon dioxide (CO2). This selectivity, along with the interaction between the gases and the perovskite surface, is confirmed through both experimental measurements and first-principles calculations. This technology holds immense potential for applications in air quality monitoring and industrial safety.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135426","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}

引用次数: 0

Bent-Core Liquid Crystal-Based Heterojunctions as Gas Sensors 弯曲核液晶异质结作为气体传感器

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-13 DOI: 10.1002/adsr.202500026

Barbora Jansová, Sujithkumar Ganesh Moorthy, Michal Šmahel, Eric Lesniewska, Michal Kohout, Marcel Bouvet

{"title":"Bent-Core Liquid Crystal-Based Heterojunctions as Gas Sensors","authors":"Barbora Jansová, Sujithkumar Ganesh Moorthy, Michal Šmahel, Eric Lesniewska, Michal Kohout, Marcel Bouvet","doi":"10.1002/adsr.202500026","DOIUrl":"10.1002/adsr.202500026","url":null,"abstract":"Taking advantage of the filmogenic properties of liquid crystal materials, bilayer heterojunction devices are built by combining them with a molecular semiconductor. Herein, the construction of a novel type of heterojunction sensor by employing bent-core liquid crystals (A1, A2, B1 and C-1C3) as a sublayer with lutetium bisphthalocyanine (LuPc2) as a common top layer is achieved. Thanks to the modified drop casting method employed to deposit the sublayers, the resulting heterojunction devices exhibit a smooth surface, the morphology of the sublayer determining that of the top layer. All prepared devices are sensitive to ammonia, with a limit of detection below 10 ppm for C1, C2, and C3-based heterojunctions, even down to 2 ppm for C2-based devices, which is more than satisfactory for controlling ammonia levels in industrial working environments. Moreover, the C3-based device shows the shortest response time (t90 = 30 s), which is suitable not only for air quality monitoring but also for applications like security alarm systems. All presented sensors operate at ambient temperature (20 °C) and humidity (45%).","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 8","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500026","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135415","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}

引用次数: 0

Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies (Adv. Sensor Res. 7/2025) 人体氨动力学：生物医学传感技术的见解（ad . Sensor Res. 7/2025）

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-10 DOI: 10.1002/adsr.70037

Annelot Nijkoops, Manuela Ciocca, Martina Aurora Costa Angeli, Silvia Pogliaghi, Soufiane Krik, Enrico Avancini, Niko Münzenrieder, Paolo Lugli, Luisa Petti

引用次数: 0

Issue Information (Adv. Sensor Res. 7/2025) 发布信息（rev . Sensor Res. 7/2025）

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-10 DOI: 10.1002/adsr.70038

引用次数: 0

Structure and Electrochemical Properties of ReS2-LaFeO3 Nanocomposite for Dopamine Sensing 多巴胺传感用ReS2-LaFeO3纳米复合材料的结构与电化学性能

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-04 DOI: 10.1002/adsr.202500024

Obed Graham Keelson, Rajeev Kumar, Amit Kumar Shringi, Hazel Achieng Ouma, Pooja D. Walimbe, Fei Yan

{"title":"Structure and Electrochemical Properties of ReS2-LaFeO3 Nanocomposite for Dopamine Sensing","authors":"Obed Graham Keelson, Rajeev Kumar, Amit Kumar Shringi, Hazel Achieng Ouma, Pooja D. Walimbe, Fei Yan","doi":"10.1002/adsr.202500024","DOIUrl":"10.1002/adsr.202500024","url":null,"abstract":"This study presents the first investigation of a ReS2-LaFeO3 nanocomposite for the electrochemical detection of dopamine (DA). ReS2-LaFeO3 nanocomposites (5%, 10%, and 20% ReS2 by weight) are synthesized hydrothermally on porous LaFeO3 nanofibers prepared via electrospinning and annealing. The resulting materials are thoroughly characterized using spectroscopic and microscopic techniques. Electrochemical DA detection (0.02 µm – 1 mm) is performed using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and chronoamperometry (CA). The 10 wt.% ReS2-LaFeO3 nanocomposite demonstrates exceptional performance, achieving a high sensitivity of 0.191 µA µM⁻¹ cm⁻2. In comparison, LaFeO3, 5 wt.% ReS2-LaFeO3, 20 wt.% ReS2-LaFeO3, and pristine ReS2 exhibit limits of detection (LODs) of 281, 357,187, and 120 µm, with corresponding sensitivities of 0.191, 0.156, 0.181, 0.183 µA µM⁻¹ cm⁻2, respectively. The representative 10 wt.% ReS2-LaFeO3 nanocomposite exhibits good selectivity and detection performance, as confirmed by tests with 1 mm concentrations of common analytes in biological relevant chemicals such as uric acid (UA), sodium chloride (NaCl), hydrogen peroxide (H2O2), and ascorbic acid (AA). Furthermore, it shows varying response toward other neurotransmitters like epinephrine (EP) ad norepinephrine (NEP). The results of this investigation show that ReS2 decoration on LaFeO3 enhances the nanocomposite's physical, chemical, and electrical properties, leading to improved charge separation and reliable DA sensing in complex biological samples.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145051108","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}

引用次数: 0

Compact Multichannel Plasmonic Device for Rapid and Versatile Inflammatory Biomarker Analysis 用于快速和通用炎症生物标志物分析的紧凑型多通道等离子体装置

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-03 DOI: 10.1002/adsr.202500050

Juliana Fátima Giarola, Patricia Ramirez-Priego, M.-Carmen Estevez, Laura M. Lechuga

{"title":"Compact Multichannel Plasmonic Device for Rapid and Versatile Inflammatory Biomarker Analysis","authors":"Juliana Fátima Giarola, Patricia Ramirez-Priego, M.-Carmen Estevez, Laura M. Lechuga","doi":"10.1002/adsr.202500050","DOIUrl":"10.1002/adsr.202500050","url":null,"abstract":"Plasmonic biosensors have demonstrated versatility across diverse applications, including clinical diagnostics, environmental monitoring, and food analysis. Multiplexed plasmonic biosensors capable of detecting multiple analytes simultaneously have also been developed. However, existing designs face challenges for wide-scale adoption due to bulky designs and expense. A compact multichannel plasmonic biosensor platform is presented for multiplexed detection of up to four biomarkers from one sample distributed via microfluidic channels. The device operates under the Kretschmann configuration for sequential quasi-simultaneous multichannel sensing. Optical performance evaluation demonstrates high sensitivity and a limit of detection (LOD) of 10⁻⁶ RIU across four channels. The biosensing capabilities of the device have been assessed for detecting four inflammatory biomarkers. Customized biofunctionalization of sensor chips ensures inter-channel reproducibility and direct binding detection assays for C-reactive protein (CRP), interleukin-6 (IL-6), procalcitonin (PCT), and pancreatic stone protein (PSP), with sensitivities in the low ng/mL range and negligible cross-reactivity. Recovery testing confirms its feasibility for detecting multiple biomarkers at low concentrations in human serum. The compact, user-friendly design makes this biosensor an attractive tool for multiplexed detection, underscoring its applicability beyond inflammatory-related processes, offering a versatile solution for biomarker analysis in human fluids, and contributing to the decentralization of diagnostics for complex diseases.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145051066","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}

引用次数: 0

Beyond Plasmonics: Atomic-Scale SERS Platforms for Plasmon-Free Photocatalysis Monitoring via Charge Transfer Mechanisms 超越等离子体：通过电荷转移机制监测无等离子体光催化的原子尺度SERS平台

IF 3.5

Advanced Sensor Research Pub Date : 2025-07-02 DOI: 10.1002/adsr.202500054

Ruinan Wang, Yunjia Wei, Guoqun Li, Shuying Chen, Jie Lin, Qi Hao, Xingce Fan, Teng Qiu

{"title":"Beyond Plasmonics: Atomic-Scale SERS Platforms for Plasmon-Free Photocatalysis Monitoring via Charge Transfer Mechanisms","authors":"Ruinan Wang, Yunjia Wei, Guoqun Li, Shuying Chen, Jie Lin, Qi Hao, Xingce Fan, Teng Qiu","doi":"10.1002/adsr.202500054","DOIUrl":"10.1002/adsr.202500054","url":null,"abstract":"Surface-enhanced Raman scattering (SERS) leveraging single-atom or small-cluster systems represents an emerging frontier in molecular sensing and catalytic monitoring. Unlike conventional plasmonic SERS substrates, these systems rely on charge transfer mechanisms rather than electromagnetic enhancement, enabling possible SERS monitoring of their own photocatalytic reaction process without plasmon-induced side reactions. This Perspective explores the working principles of charge transfer mechanisms in single-atom/small-cluster systems supported by semiconducting and metallic substrates, highlighting their distinct electronic interactions and energy-level matching strategies. This integration of SERS with photocatalytic processes offers unprecedented opportunities for real-time plasmon-free reaction monitoring. Challenges in anchoring single atoms or small clusters onto suitable support materials, methods for simultaneously optimizing SERS performance and photocatalytic activity, and approaches for promoting SERS uniformity are critically discussed.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145051061","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}

引用次数: 0

Label-Free, Sensitive, and Direct Detection of Cardiac Troponin Biomarkers Using Frequency-Locked Microring Resonators 无标签，敏感，直接检测心脏肌钙蛋白生物标志物使用锁频微环谐振器

IF 3.5

Advanced Sensor Research Pub Date : 2025-06-30 DOI: 10.1002/adsr.202500049

Evan Diamandikos, Tetsuya Shimogaki, Crispin Szydzik, Peter Thurgood, Luke H. Broadley, Sonya Palmer, Guanghui Ren, Thach G. Nguyen, Cesar S. Huertas, Arnan Mitchell

{"title":"Label-Free, Sensitive, and Direct Detection of Cardiac Troponin Biomarkers Using Frequency-Locked Microring Resonators","authors":"Evan Diamandikos, Tetsuya Shimogaki, Crispin Szydzik, Peter Thurgood, Luke H. Broadley, Sonya Palmer, Guanghui Ren, Thach G. Nguyen, Cesar S. Huertas, Arnan Mitchell","doi":"10.1002/adsr.202500049","DOIUrl":"10.1002/adsr.202500049","url":null,"abstract":"Silicon photonic microring resonators have emerged as promising sensors for Point-of-Care applications, where the readout of one or many biomarkers at once is required. In the context of rapid heart attack detection, a limit of detection reaching an ultra-low concentration of biomarkers is needed, however, such sensors are prone to fundamental noise influence in optical systems which can potentially jeopardize sensor readings. While noise reduction has previously been explored with the Pound–Drever–Hall (PDH) technique, its full implementation in microring biosensors has not been realized due to the complexity of the setup. Recent innovations in photonic integration and compatibility with MEMS structures have sparked new interest in validating PDH's potential to be used with chip-scale sensors. By enabling the signal readout of microrings through their phase response, instead of power transmission, the impact of optical noise can be greatly reduced. This study explores a proof-of-concept for this system against the cardiac troponin biomarker, demonstrating the sensor's capacity for selective measurement down to a limit of 10 ng mL−1 while using frequency locking. An improved limit of detection for this system is achieved, down to 5.03 × 10−7 RIU, which is two orders of magnitude improved compared to the equivalent sensing based on intensity alone.","PeriodicalId":100037,"journal":{"name":"Advanced Sensor Research","volume":"4 9","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adsr.202500049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145051215","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}

引用次数: 0