Pub Date : 2022-10-04DOI: 10.1149/2754-2726/ac973e
Akash Gautam
Neurodegenerative diseases (NDD) are progressive degenerative disorders of the neurological system with significant social impact worldwide. Their detection at the initial stage is necessary to provide proper therapeutic interventions. Biosensors have emerged as one of the next-generation tools for detecting and monitoring physiochemical changes associated with neurological disorders. This article discusses the current status and challenges of different state-of-the-art sensors which can detect NDD biomarkers. A brief overview of developing advanced biosensors with the help of nanotechnology integration, mainly polymer-based functional nanomaterials, has been mentioned as the prospect of these biosensors for NDD detection and management.
{"title":"Towards Modern-Age Advanced Sensors for the Management of Neurodegenerative Disorders: Current Status, Challenges and Prospects","authors":"Akash Gautam","doi":"10.1149/2754-2726/ac973e","DOIUrl":"https://doi.org/10.1149/2754-2726/ac973e","url":null,"abstract":"Neurodegenerative diseases (NDD) are progressive degenerative disorders of the neurological system with significant social impact worldwide. Their detection at the initial stage is necessary to provide proper therapeutic interventions. Biosensors have emerged as one of the next-generation tools for detecting and monitoring physiochemical changes associated with neurological disorders. This article discusses the current status and challenges of different state-of-the-art sensors which can detect NDD biomarkers. A brief overview of developing advanced biosensors with the help of nanotechnology integration, mainly polymer-based functional nanomaterials, has been mentioned as the prospect of these biosensors for NDD detection and management.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43671501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-19DOI: 10.1149/2754-2726/ac92ed
S. Sonu, Vishal Chaudhary
Plant pathogens massively affect crop productivity and are one of the significant challenges in attaining sustainable development goals related to agriculture, food production, and addressing hunger issues. Conventional techniques of generic seasonal chemical spraying severely damage the environment and human health. On the contrary, nanomaterials-based biosensors have emerged as economical, efficient, selective, prompt, and precise strategies for plant pathogen and disease diagnosis. The integration of nano-biosensors with artificial intelligence, internet-of-things, cloud computing, drones, and 5G communication has recently raised the paradigm of internet-of-nano-things-inspired intelligent plant-diagnostic biosensors. This prospect highlights these modern-age plant-pathogen biosensors for shaping smart and 5th generation agricultural practices.
{"title":"A Paradigm of Internet-of-Nano-Things Inspired Intelligent Plant Pathogen-Diagnostic Biosensors","authors":"S. Sonu, Vishal Chaudhary","doi":"10.1149/2754-2726/ac92ed","DOIUrl":"https://doi.org/10.1149/2754-2726/ac92ed","url":null,"abstract":"Plant pathogens massively affect crop productivity and are one of the significant challenges in attaining sustainable development goals related to agriculture, food production, and addressing hunger issues. Conventional techniques of generic seasonal chemical spraying severely damage the environment and human health. On the contrary, nanomaterials-based biosensors have emerged as economical, efficient, selective, prompt, and precise strategies for plant pathogen and disease diagnosis. The integration of nano-biosensors with artificial intelligence, internet-of-things, cloud computing, drones, and 5G communication has recently raised the paradigm of internet-of-nano-things-inspired intelligent plant-diagnostic biosensors. This prospect highlights these modern-age plant-pathogen biosensors for shaping smart and 5th generation agricultural practices.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48320656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-15DOI: 10.1149/2754-2726/ac9227
Shashank Shekhar, Ajay Kumar, A. Khosla, P. Solanki
Interleukins (ILs) are a major subclass of cytokines acting as molecular messengers playing role in immune system responses via a cascade of signaling pathways. Belonging to the cytokine family, the ILs play a crucial role in the theranostics of various diseases. Their abnormal expression leads to the development of various diseases such as cancer, neurodegenerative diseases, allergies, asthma, autoimmune diseases, and other physiological abnormalities. This paves the path of exploring the ILs for the development of sensitive and efficient biosensors and promoting them for clinical testing in a wide array of diseases. Further, detecting the level of ILs is very important for their early diagnosis and their progression within the body, and simultaneously their possible immunotherapeutic approaches. To achieve this goal, multidisciplinary scientific approaches involving immunology, electrochemistry, nanotechnology, photometry, etc. are already being put into action. The advancements in nanoscience and nanotechnology are aiding the development of highly sensitive biosensors for ILs detection. This review focuses on giving a detailed description of all the presently discovered ILs and their role in various diseases. Simultaneously, it also discusses the various electrochemical biosensors that can be employed for the detection of ILs in body fluids. Moreover, the role of nanomaterials in electrochemical biosensing is also discussed in this review.
{"title":"Review—Interleukins Profiling for Biosensing Applications: Possibilities and the Future of Disease Detection","authors":"Shashank Shekhar, Ajay Kumar, A. Khosla, P. Solanki","doi":"10.1149/2754-2726/ac9227","DOIUrl":"https://doi.org/10.1149/2754-2726/ac9227","url":null,"abstract":"Interleukins (ILs) are a major subclass of cytokines acting as molecular messengers playing role in immune system responses via a cascade of signaling pathways. Belonging to the cytokine family, the ILs play a crucial role in the theranostics of various diseases. Their abnormal expression leads to the development of various diseases such as cancer, neurodegenerative diseases, allergies, asthma, autoimmune diseases, and other physiological abnormalities. This paves the path of exploring the ILs for the development of sensitive and efficient biosensors and promoting them for clinical testing in a wide array of diseases. Further, detecting the level of ILs is very important for their early diagnosis and their progression within the body, and simultaneously their possible immunotherapeutic approaches. To achieve this goal, multidisciplinary scientific approaches involving immunology, electrochemistry, nanotechnology, photometry, etc. are already being put into action. The advancements in nanoscience and nanotechnology are aiding the development of highly sensitive biosensors for ILs detection. This review focuses on giving a detailed description of all the presently discovered ILs and their role in various diseases. Simultaneously, it also discusses the various electrochemical biosensors that can be employed for the detection of ILs in body fluids. Moreover, the role of nanomaterials in electrochemical biosensing is also discussed in this review.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44934531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-06DOI: 10.1149/2754-2726/ac8fa1
Hilena F. Gezahagne, E. L. Brightbill, Decarle S. Jin, Siamalan Krishnathas, B. Brown, M. Mooney, A. O’Riordan, Niamh Creedon, Caoimhe Robinson, E. Vogel
Biosensors based on Electrochemical Impedance Spectroscopy (EIS) detect the binding of an analyte to a receptor functionalized electrode by measuring the subsequent change in the extracted charge-transfer resistance (RCT). In this work, the stability of a long chain alkanethiol, 16-mercaptohexadecanoic acid was compared to that of a polymer-based surface linker, ortho-aminobenzoic acid (o-ABA). These two classes of surface linkers were selected due to the marked differences in their structural properties. The drift in RCT observed for the native SAM functionalized gold electrodes was observed to correlate to the drift in the subsequent receptor functionalized SAM. This indicates the importance of the gold-molecule interface for reliable biosensing. Additionally, the magnitude of the baseline drift correlated to the percentage of thiol molecules improperly bound to the gold electrode as evaluated using X-ray Photoelectron Spectroscopy (XPS). Alternatively, the o-ABA functionalized gold electrodes demonstrated negligible drift in the RCT. Furthermore, these polymer functionalized gold electrodes do not require a stabilization period in the buffer solution prior to receptor functionalization. This work emphasizes the importance of understanding and leveraging the structural properties of various classes of surface linkers to ensure the stability of impedimetric measurements.
{"title":"Suppression of Impedimetric Baseline Drift for Stable Biosensing","authors":"Hilena F. Gezahagne, E. L. Brightbill, Decarle S. Jin, Siamalan Krishnathas, B. Brown, M. Mooney, A. O’Riordan, Niamh Creedon, Caoimhe Robinson, E. Vogel","doi":"10.1149/2754-2726/ac8fa1","DOIUrl":"https://doi.org/10.1149/2754-2726/ac8fa1","url":null,"abstract":"Biosensors based on Electrochemical Impedance Spectroscopy (EIS) detect the binding of an analyte to a receptor functionalized electrode by measuring the subsequent change in the extracted charge-transfer resistance (RCT). In this work, the stability of a long chain alkanethiol, 16-mercaptohexadecanoic acid was compared to that of a polymer-based surface linker, ortho-aminobenzoic acid (o-ABA). These two classes of surface linkers were selected due to the marked differences in their structural properties. The drift in RCT observed for the native SAM functionalized gold electrodes was observed to correlate to the drift in the subsequent receptor functionalized SAM. This indicates the importance of the gold-molecule interface for reliable biosensing. Additionally, the magnitude of the baseline drift correlated to the percentage of thiol molecules improperly bound to the gold electrode as evaluated using X-ray Photoelectron Spectroscopy (XPS). Alternatively, the o-ABA functionalized gold electrodes demonstrated negligible drift in the RCT. Furthermore, these polymer functionalized gold electrodes do not require a stabilization period in the buffer solution prior to receptor functionalization. This work emphasizes the importance of understanding and leveraging the structural properties of various classes of surface linkers to ensure the stability of impedimetric measurements.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45300252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-29DOI: 10.1149/2754-2726/ac8d70
C. Venkateswara Raju, Gokana Mohana Rani, J. Haribabu, Shanmugam Senthil Kumar
Over the past few decades, electrochemiluminescence (ECL) has been used as a powerful analytical tool for in vitro diagnosis due to its promising potential in light-emitting and, which has greatly promoted recent for biosensor studies. Plenty of research articles on the ECL technique have been published by various researchers around the globe. On the other hand, studies on the coupling of ECL sensing strategies with other techniques are recently getting widespread attention. ECL strategies have been effectively coupled with scanning electrochemical microscope (SECM), flow injection analysis (FIA), and capillary electrophoresis. These coupled techniques have been effectively employed for various health care applications. Among these techniques, FIA coupled ECL sensing strategies have been designated as the most emerging technique, especially sensing of clinical samples. This critical review discusses the vibrant developments in FIA-ECL, the mechanism of ECL, the design of FIA-ECL, and highlights the application of FIA-ECL for the detection of immunoassays, catecholamines, antioxidant compounds, choline, tetracyclines, and pharmaceutical drugs. The current review will pave the way for the design and development of FIA-ECL for efficient point-of-care applications.
{"title":"Flow Injection Analysis-Based Electrochemiluminescence: An Overview of Experimental Design and Its Biosensing Applications","authors":"C. Venkateswara Raju, Gokana Mohana Rani, J. Haribabu, Shanmugam Senthil Kumar","doi":"10.1149/2754-2726/ac8d70","DOIUrl":"https://doi.org/10.1149/2754-2726/ac8d70","url":null,"abstract":"Over the past few decades, electrochemiluminescence (ECL) has been used as a powerful analytical tool for in vitro diagnosis due to its promising potential in light-emitting and, which has greatly promoted recent for biosensor studies. Plenty of research articles on the ECL technique have been published by various researchers around the globe. On the other hand, studies on the coupling of ECL sensing strategies with other techniques are recently getting widespread attention. ECL strategies have been effectively coupled with scanning electrochemical microscope (SECM), flow injection analysis (FIA), and capillary electrophoresis. These coupled techniques have been effectively employed for various health care applications. Among these techniques, FIA coupled ECL sensing strategies have been designated as the most emerging technique, especially sensing of clinical samples. This critical review discusses the vibrant developments in FIA-ECL, the mechanism of ECL, the design of FIA-ECL, and highlights the application of FIA-ECL for the detection of immunoassays, catecholamines, antioxidant compounds, choline, tetracyclines, and pharmaceutical drugs. The current review will pave the way for the design and development of FIA-ECL for efficient point-of-care applications.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44505140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-18DOI: 10.1149/2754-2726/ac8aa7
D. Nguyen, Tran Thanh Tam Toan
In this study, a PoL/RGO material was successfully synthesized and employed to modify the working electrode for determining MPB in medication products through voltammetric techniques. The structure of the nanocomposite was characterized by UV–vis and FT-IR spectrum and its application to the MPB electrochemical detection was tested by the CV and DPV techniques. In the result, the modified PoL-RGO/GCE electrode exhibited a superior response toward MPB by applying the DPV method, compares to using the bare GCE, with a limit of detection (LOD), a limit of quantification (LOQ) is 0.20 μM and 0.70 μM, respectively and the concentration ranging from 1 to 200 μM. In addition, the repeatability (RSD of 2.2, 1.6, 1.4 for 5, 50 and 100 μM MPB, respectively), and the reproducibility (RSD of 4.7%) of the technique were examined as well. This illustrates the performance of the electrochemical sensor was statistically investigated by the CV and DPV methods demonstrating accuracy comparable to other analytical methods as well as indicating that MPB can be determined in cosmetics with high recovery ranging from 97% to 104.3%.
{"title":"Detection of Methylparaben in Cosmetics by Poly L–Lysine/Reduced Graphene Oxide-Based Sensor","authors":"D. Nguyen, Tran Thanh Tam Toan","doi":"10.1149/2754-2726/ac8aa7","DOIUrl":"https://doi.org/10.1149/2754-2726/ac8aa7","url":null,"abstract":"In this study, a PoL/RGO material was successfully synthesized and employed to modify the working electrode for determining MPB in medication products through voltammetric techniques. The structure of the nanocomposite was characterized by UV–vis and FT-IR spectrum and its application to the MPB electrochemical detection was tested by the CV and DPV techniques. In the result, the modified PoL-RGO/GCE electrode exhibited a superior response toward MPB by applying the DPV method, compares to using the bare GCE, with a limit of detection (LOD), a limit of quantification (LOQ) is 0.20 μM and 0.70 μM, respectively and the concentration ranging from 1 to 200 μM. In addition, the repeatability (RSD of 2.2, 1.6, 1.4 for 5, 50 and 100 μM MPB, respectively), and the reproducibility (RSD of 4.7%) of the technique were examined as well. This illustrates the performance of the electrochemical sensor was statistically investigated by the CV and DPV methods demonstrating accuracy comparable to other analytical methods as well as indicating that MPB can be determined in cosmetics with high recovery ranging from 97% to 104.3%.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47290699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-18DOI: 10.1149/2754-2726/ac8aa8
R. López, Justin Fuentes, Adrian Gonzalez-Camps, T. Benhaddouch, A. Kaushik, Christopher Lloyd Metler, S. Bhansali, D. Dong
To the best of our knowledge, very few works have been done for the continuous real-time monitoring of Proton Exchange Membrane Fuel Cells (PEMFCs) membrane degradation based on fluoride-specific electrochemical microsensors. PEMFCs are eco-smart energy sources for efficient transportation but experience variable degradation rates that wear the Membrane Electrode Assembly (MEA), a critical component of the fuel cell’s functionality. Current market options lack specific diagnostics and a legitimate indication of when exactly the membrane needs to be replaced. As such, this work focused on manufacturing a sensor for measuring MEA degradation in real-time by selectively monitoring fluoride concentration in effluent water, a signature PEMFCs degradation status, through functionalized LaF3:(Au nanoparticle) thin films (∼60 nm). The sensor’s exceptional specificity/sensitivity has been achieved in real-time at a sub 10 ppb level, optimized through spin-coating deposition and post-annealing process. Its multimodal readout has been achieved and studied through the characterizations of open circuit potential, cyclic voltammetry, chronoamperometry, and differential pulse voltammetry revealing a consistent linear decrease of 15.7 mA cm−2 at 0 ppb to 10.2 mA cm−2, while also maintaining its low-cost, small size, and robustness.
据我们所知，基于氟化物特异性电化学微传感器对质子交换膜燃料电池(pemfc)膜降解进行持续实时监测的工作很少。pemfc是一种生态智能能源，可用于高效运输，但降解率不同，会磨损膜电极组件(MEA)，而膜电极组件是燃料电池功能的关键组成部分。目前的市场选择缺乏具体的诊断和合理的指示，何时需要更换膜。因此，这项工作的重点是制造一种传感器，通过功能化的LaF3:(Au纳米颗粒)薄膜(~ 60 nm)，选择性地监测出水中的氟化物浓度，从而实时测量MEA的降解情况。通过旋转镀膜沉积和后退火工艺优化，该传感器在低于10 ppb的水平下实现了卓越的特异性/灵敏度。通过开路电位、循环伏安法、计时伏安法和差分脉冲伏安法的表征，已经实现并研究了它的多模态读数，结果显示，在0 ppb下，它从15.7 mA cm - 2线性下降到10.2 mA cm - 2，同时还保持了它的低成本、小尺寸和鲁棒性。
{"title":"Multimodal Single-Entity Electrochemical Fluoride Sensor for Fuel Cell Membrane Degradation Diagnostics","authors":"R. López, Justin Fuentes, Adrian Gonzalez-Camps, T. Benhaddouch, A. Kaushik, Christopher Lloyd Metler, S. Bhansali, D. Dong","doi":"10.1149/2754-2726/ac8aa8","DOIUrl":"https://doi.org/10.1149/2754-2726/ac8aa8","url":null,"abstract":"To the best of our knowledge, very few works have been done for the continuous real-time monitoring of Proton Exchange Membrane Fuel Cells (PEMFCs) membrane degradation based on fluoride-specific electrochemical microsensors. PEMFCs are eco-smart energy sources for efficient transportation but experience variable degradation rates that wear the Membrane Electrode Assembly (MEA), a critical component of the fuel cell’s functionality. Current market options lack specific diagnostics and a legitimate indication of when exactly the membrane needs to be replaced. As such, this work focused on manufacturing a sensor for measuring MEA degradation in real-time by selectively monitoring fluoride concentration in effluent water, a signature PEMFCs degradation status, through functionalized LaF3:(Au nanoparticle) thin films (∼60 nm). The sensor’s exceptional specificity/sensitivity has been achieved in real-time at a sub 10 ppb level, optimized through spin-coating deposition and post-annealing process. Its multimodal readout has been achieved and studied through the characterizations of open circuit potential, cyclic voltammetry, chronoamperometry, and differential pulse voltammetry revealing a consistent linear decrease of 15.7 mA cm−2 at 0 ppb to 10.2 mA cm−2, while also maintaining its low-cost, small size, and robustness.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43714808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-11DOI: 10.1149/2754-2726/ac88e3
Bianca-Maria Ţuchiu, Raluca-Ioana Ștefan-van Staden, J. V. van Staden
Antifungal agents are essential drugs used to treat fungal infections caused by various types of fungi. Due to their mechanism of action, these drugs bear serious adverse reactions, interact with a wide range of other drugs, and negatively impact the environment. Therefore, there is a need for accurate, sensitive, and reliable detection methods to minimize and possibly avoid their potentially negative effects. Even though so far classical methods have proven to be effective in detecting these drugs, some of their disadvantages have led the scientific community to focus its efforts on electrochemical methods, as they are simpler to use, more sensitive, and require a smaller quantity of sample and minimal sample pretreatment. This mini-review focuses on electrochemical sensors developed between 2017 and 2022 to detect and quantify antifungal azoles, highlighting their response characteristics, sensitivity, and applicability in real samples analysis.
{"title":"Review—Electrochemical Sensors Used for the Determination of Some Antifungal Azoles","authors":"Bianca-Maria Ţuchiu, Raluca-Ioana Ștefan-van Staden, J. V. van Staden","doi":"10.1149/2754-2726/ac88e3","DOIUrl":"https://doi.org/10.1149/2754-2726/ac88e3","url":null,"abstract":"Antifungal agents are essential drugs used to treat fungal infections caused by various types of fungi. Due to their mechanism of action, these drugs bear serious adverse reactions, interact with a wide range of other drugs, and negatively impact the environment. Therefore, there is a need for accurate, sensitive, and reliable detection methods to minimize and possibly avoid their potentially negative effects. Even though so far classical methods have proven to be effective in detecting these drugs, some of their disadvantages have led the scientific community to focus its efforts on electrochemical methods, as they are simpler to use, more sensitive, and require a smaller quantity of sample and minimal sample pretreatment. This mini-review focuses on electrochemical sensors developed between 2017 and 2022 to detect and quantify antifungal azoles, highlighting their response characteristics, sensitivity, and applicability in real samples analysis.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47407142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-01DOI: 10.1149/2754-2726/ac85ca
Harjot Kaur, Pardeep Kaur, Preet Kaur, T. Singh
In the present work, twelve inorganic thermoluminescence dosimeteric (TLD) materials doped with some rare earth elements (LiF:Sm, LiBaP2O7:Eu, CaCO3:Eu, CaSO4:Dy, SrSO4:Sm, CdSO4:Dy, BaSO4:Eu, Li2B4O7:Dy, MgB4O7:Gd, Al2O3:Gd, MgAl2O4:Ce and LiCaAlF6:Eu) and three organic TLD materials (C3H7NO2, C7H8O2 and C4H6BaO4) were selected for comparative analysis on the basis of different photon sensing parameters. About nine photon sensing parameters viz. mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), mean free path (mfp), half value layer (HVL), tenth value layer (TVL), effective atomic number (EAN), effective electron number (EEN), exposure buildup factor (EBF) and energy absorption buildup factor (EABF) were obtained for the selected fifteen TLDs. The simultaneous variation of these photon sensing parameters for the selected TLDs with photon energy and composition has been analyzed. The results of present comparative analysis help radiation physicists to easily select a particular dosimeter for their research laboratory from different existing compositions. All photon sensing parameters viz. MAC, LAC, mfp, HVL, TVL, EAN, EEN, EBF and EABF for selected TLDs strongly depend upon incident energy and chemical composition in lower and higher energy regions. Among the selected TLDs; BaSO4: Eu3+ offers best results (maximum values for MAC, EAN, EEN; and minimum values for mfp, HVL, TVL, EBF, EABF); whereas MgB4O7:Gd3+ offers EAN value close to tissue and less variation in most of the sensing parameters with respect to photon energy.
{"title":"Numerical Investigation on Photon Sensing Parameters for Some Thermoluminescence Dosimeters: A Comparative Study","authors":"Harjot Kaur, Pardeep Kaur, Preet Kaur, T. Singh","doi":"10.1149/2754-2726/ac85ca","DOIUrl":"https://doi.org/10.1149/2754-2726/ac85ca","url":null,"abstract":"In the present work, twelve inorganic thermoluminescence dosimeteric (TLD) materials doped with some rare earth elements (LiF:Sm, LiBaP2O7:Eu, CaCO3:Eu, CaSO4:Dy, SrSO4:Sm, CdSO4:Dy, BaSO4:Eu, Li2B4O7:Dy, MgB4O7:Gd, Al2O3:Gd, MgAl2O4:Ce and LiCaAlF6:Eu) and three organic TLD materials (C3H7NO2, C7H8O2 and C4H6BaO4) were selected for comparative analysis on the basis of different photon sensing parameters. About nine photon sensing parameters viz. mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), mean free path (mfp), half value layer (HVL), tenth value layer (TVL), effective atomic number (EAN), effective electron number (EEN), exposure buildup factor (EBF) and energy absorption buildup factor (EABF) were obtained for the selected fifteen TLDs. The simultaneous variation of these photon sensing parameters for the selected TLDs with photon energy and composition has been analyzed. The results of present comparative analysis help radiation physicists to easily select a particular dosimeter for their research laboratory from different existing compositions. All photon sensing parameters viz. MAC, LAC, mfp, HVL, TVL, EAN, EEN, EBF and EABF for selected TLDs strongly depend upon incident energy and chemical composition in lower and higher energy regions. Among the selected TLDs; BaSO4: Eu3+ offers best results (maximum values for MAC, EAN, EEN; and minimum values for mfp, HVL, TVL, EBF, EABF); whereas MgB4O7:Gd3+ offers EAN value close to tissue and less variation in most of the sensing parameters with respect to photon energy.","PeriodicalId":72870,"journal":{"name":"ECS sensors plus","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42053648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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