Sensors International最新文献_第8页

Potentiometric determination of anti–epileptic drugs: A mini review 抗癫痫药物的电位测定：综述

Sensors International Pub Date : 2023-01-01 DOI: 10.1016/j.sintl.2022.100224

Oguz Özbek , Onur Cem Altunoluk

引用次数: 0

A novel dual template molecularly imprinted modified pencil graphite electrode and assisting it by second-order calibration to construct a novel electronic device in advance for simultaneous determination of ferritin and transferrin 一种新的双模板分子印迹修饰铅笔石墨电极及其二阶校准辅助构建一种同时测定铁蛋白和转铁蛋白的新型电子装置

Sensors International Pub Date : 2023-01-01 DOI: 10.1016/j.sintl.2022.100205

Ali R. Jalalvand

{"title":"A novel dual template molecularly imprinted modified pencil graphite electrode and assisting it by second-order calibration to construct a novel electronic device in advance for simultaneous determination of ferritin and transferrin","authors":"Ali R. Jalalvand","doi":"10.1016/j.sintl.2022.100205","DOIUrl":"https://doi.org/10.1016/j.sintl.2022.100205","url":null,"abstract":"<div>This work introduced a novel electronic device for simultaneous determination of ferritin and transferrin in real matrices. Here, a pencil graphite electrode was chosen as a platform and its surface was modified with multiwalled carbon nanotubes-ionic liquid and electrochemically reduced fullerene-C60. Finally, the surface of the biosensor was modified by dual template molecularly imprinted polymers which were produced by electropolymerization of 2-amino-5-mercapto-1, 3, 4-thiadiazole, and ferritin and transferrin as template molecules. To generate a square wave voltammetric signal from the biosensor to simultaneous determination of ferritin and transferrin, it was incubated into a solution having ferritin and transferrin and then, it was immersed into an electrochemical probe solution. By incubation of the biosensor with ferritin and transferrin, the pathways within its molecularly imprinted polymer layer were occupied by ferritin and transferrin therefore, it was reasonable to observe decreasing of the height of its square wave voltammetric response. Because of the nature of the square wave voltammetric data (potential shifts), incubation of the biosensor with ferritin and transferrin produced two severely overlapped peaks while incubation of the biosensor with both of them generated a single peak. Therefore, for simultaneous determination of ferritin and transferrin, the biosensor was assisted by three-way calibration with the help of second-order square wave voltammetric data which helped me to develop a very efficient electronic device for simultaneous determination of ferritin (sensitivity: 6.5 μA nM−1, limit of detection: 0.01 nM) and transferrin (sensitivity: 6.1 μA nM−1, limit of detection: 0.012 nM) in serum samples whose performance was comparable with a reference method.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50172727","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}

引用次数: 1

Flexible sensors for mechatronic engineering education 用于机电工程教育的柔性传感器

Sensors International Pub Date : 2023-01-01 DOI: 10.1016/j.sintl.2023.100236

Danyao Song , Xujun Chen , Meng Wang, Xinqing Xiao

引用次数: 3

Flange-type liquid-level sensor based on laser light reflection 基于激光反射的法兰式液位传感器

Sensors International Pub Date : 2023-01-01 DOI: 10.1016/j.sintl.2023.100230

Kouji Suemori , Yuichiro Komatsu , Taiki Nobeshima

引用次数: 0

Thank you, reviewers!!! 谢谢你们，审稿人

Sensors International Pub Date : 2023-01-01 DOI: 10.1016/j.sintl.2023.100270

引用次数: 0

Analytical performances of different diagnostic methods for SARS-CoV-2 virus - A review 不同诊断方法对SARS-CoV-2病毒的分析性能综述

Sensors International Pub Date : 2022-01-01 DOI: 10.1016/j.sintl.2022.100197

Ravina , Ashok Kumar , Manjeet , Twinkle , Subodh , Jagriti Narang , Hari Mohan

{"title":"Analytical performances of different diagnostic methods for SARS-CoV-2 virus - A review","authors":"Ravina , Ashok Kumar , Manjeet , Twinkle , Subodh , Jagriti Narang , Hari Mohan","doi":"10.1016/j.sintl.2022.100197","DOIUrl":"10.1016/j.sintl.2022.100197","url":null,"abstract":"<div>Covid-19 is a dreadful pandemic of the 21st century that has created fear among people, affected the whole world, and taken thousands of lives. It infects the respiratory system and causes flu-type symptoms. According to the WHO reports, 2,082,745 deaths and 96,267,473 confirmed cases were perceived all around the globe till January 22, 2021. The significant roots of transmission are inhalation and direct contact with the infected surface. Its incubation period is 2–14 days and remains asymptomatic in most people. However, no treatment and vaccine are available for the people, so preventive measures like social distancing, wearing personal protective equipment (PPE), and frequent hand-washing are the practical and only options for cure. It has affected every sector of the world, whether it is trade or health all around the world. There is high demand for diagnostic tools as high-scale and expeditious testing is crucial for controlling disease spread; thus, detection methods play an essential role. Like flu, Covid-19 is also detected through RT-PCR, as the World Health Organization (WHO) suggested, but it is time taking and expensive method that many countries cannot afford. A vaccine is a crucial aspect of eradicating disease, and for SARS-CoV-2), plasma therapy and antibiotics therapy are used in the early spreading phase. The later stage involves forming a vaccine based on spike protein, N-protein, and whole-viral antigen that effectively immunizes the population worldwide until herd immunity can be achieved.In this review, we will discuss all possible and developed techniques for identifying SARS-CoV-2 and make a comparison of their specificity, selectivity, and cost; thus, we choose an appropriate method for fast, reliable, and pocket-friendly detection.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10352957","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: 2

Photocatalytic degradation of direct green & fast orange red dyes: Electrochemical sensor of lead using cupric oxide nanoparticles synthesized via sonochemical route 光催化降解直接绿色和耐晒橙红色染料:声化学合成氧化铜纳米颗粒铅的电化学传感器

Sensors International Pub Date : 2022-01-01 DOI: 10.1016/j.sintl.2022.100204

D.A. Raghupathy , G. Ramgopal , C.R. Ravikumar

{"title":"Photocatalytic degradation of direct green & fast orange red dyes: Electrochemical sensor of lead using cupric oxide nanoparticles synthesized via sonochemical route","authors":"D.A. Raghupathy , G. Ramgopal , C.R. Ravikumar","doi":"10.1016/j.sintl.2022.100204","DOIUrl":"10.1016/j.sintl.2022.100204","url":null,"abstract":"<div>In this study, nanocrystalline cupric oxide was produced using a basic, low-cost sonochemical method (CuO). Through powder X-ray diffraction, the phase and nanocrystalline nature of CuO nanoparticles (NPs) were determined. The Kubelka-Monk function revealed that the band gap of CuO in diffuse reflectance spectra (DRS) is 1.75 eV. Ingenious photocatalysts for the removal of the dyes Direct green (DG) and Fast orange red (F-OR) have been demonstrated to work with CuO NPs. To examine the photocatalytic characteristics of NPs under UV light and sunlight irradiation, Direct Green (DG) and Fast Orange Red (F-OR) dyes were utilised as traditional dyes. Direct green dye was found to be excited at 624.1 and 623.8 nm in UV and sunlight, while Fast orange red dye is excited at 496.8 and 495.1 nm. Lead in 0.1 N HCl solution was detected using the cyclic voltammetry (CV) method with a modified carbon paste electrode (MCPE). According to electrochemical performance, CuO is an advantageous sensing electrode material for an element like lead.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666351122000493/pdfft?md5=25f33f1d2755138018f60e7307f8faf7&pid=1-s2.0-S2666351122000493-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72816824","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: 2

Lowering detection limits of copper(II)-selective carbon paste electrodes using an SNO- and an SNNS- Schiff base ligands 利用SNO-和SNNS-希夫碱配体降低铜(II)选择性碳浆电极的检出限

Sensors International Pub Date : 2022-01-01 DOI: 10.1016/j.sintl.2021.100151

Salman M. Saadeh , Hazem M. Abu Shawish , Mohammed Y. Abu Foul

{"title":"Lowering detection limits of copper(II)-selective carbon paste electrodes using an SNO- and an SNNS- Schiff base ligands","authors":"Salman M. Saadeh , Hazem M. Abu Shawish , Mohammed Y. Abu Foul","doi":"10.1016/j.sintl.2021.100151","DOIUrl":"10.1016/j.sintl.2021.100151","url":null,"abstract":"<div>Interestingly, this work presents two newly designed copper(II)-selective carbon paste electrodes with distinctively low detection limits which is attained utilizing the Schiff base ligands 2-(2-hydroxyphenylimino)carboxythiophene (L1) and 1,2-di(2-carboxythiopheneimino] benzene (L2). The sensors exhibit a Nernstian slope of 29.10 and 29.28 mVdecade−1 for Cu(II) ion over a wide concentration range from 1.18 × 10−7 – 1.00 × 10−2 M and 7.91 × 10−8 – 1.00 × 10−2 M with the detection limits of 1.00 × 10−7 M and 5.28 × 10−8 M for L1 and L2 respectively. These sensors exhibit short response time (about 2 s) and good stability over the pH range 2.5–5.8. In addition, the present sensors show fairly good selectivity toward copper(II) ion in comparison to other common cations. Furthermore, they were satisfactorily used as indicator electrodes in complexometric titration with EDTA and for determination of copper(II) in water, tea and urine samples.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666351121000723/pdfft?md5=d5228607bc687a3182cef7638dfe16dd&pid=1-s2.0-S2666351121000723-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80352751","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: 5

Electrochemical sensing of biotin-avidin interaction on gold electrode modified by silver nanoparticles through covalent co-assembling 银纳米粒子修饰金电极上生物素-亲和素相互作用的共价共聚电化学传感

Sensors International Pub Date : 2022-01-01 DOI: 10.1016/j.sintl.2022.100159

Nirgaman Bage, Pradip Kar

{"title":"Electrochemical sensing of biotin-avidin interaction on gold electrode modified by silver nanoparticles through covalent co-assembling","authors":"Nirgaman Bage, Pradip Kar","doi":"10.1016/j.sintl.2022.100159","DOIUrl":"https://doi.org/10.1016/j.sintl.2022.100159","url":null,"abstract":"<div>Electrochemical sensing of biotin-avidin interaction was investigated on gold electrode modified with 3-mercaptopropanoic acid (MPA) successively co-assembled with cysteamine functionalized silver nanoparticles and biotin or avidin. The stable aqueous colloid of cysteamine functionalized silver nanoparticles was synthesized successfully by well-known citric acid reduction method. Gold electrode was first modified with a monolayer of MPA by self-assembly technique. Then, cysteamine functionalized silver nanoparticles and biotin or avidin was co-assembled on the MPA modified gold electrode through an amide linkage. The stepwise modification process was optimized in terms of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurement in [Fe (CN)6]3−/4− redox system by varying the ratio of functionalized silver nanoparticles and biotin or avidin, viz., 1:2, 1:1, 2:1. Based on obtained results, the electrochemical sensing performances of 1:1 silver nanoparticle and biotin or avidin co-assembled gold electrode was performed by CV and EIS for varying concentration of complementary bio-affinity molecules in the same redox system. Both the CV and EIS measurements were found to have good response by resistive and capacitive changes due to coupling with a complementary biomolecule on co-assembled gold electrode. The use of avidin assembled gold electrode had led to much better response towards varying concentration of biotin over that of the biotin assembled gold electrode towards avidin.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666351122000043/pdfft?md5=de5918d16e50c17ccf063ec1a46059b4&pid=1-s2.0-S2666351122000043-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137241225","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

Potentiometric PVC membrane ion–selective electrode for the determination of Sr(II) ions 电位法PVC膜离子选择电极测定Sr(II)离子

Sensors International Pub Date : 2022-01-01 DOI: 10.1016/j.sintl.2022.100185

Oguz Özbek

{"title":"Potentiometric PVC membrane ion–selective electrode for the determination of Sr(II) ions","authors":"Oguz Özbek","doi":"10.1016/j.sintl.2022.100185","DOIUrl":"https://doi.org/10.1016/j.sintl.2022.100185","url":null,"abstract":"<div>In this study, an ion–selective electrode was developed for the potentiometric determination of strontium ions. Membrane optimization studies showed that the most suitable membrane composition was 4.0% (w/w) synthesized ionophore, 63.0% (w/w) bis(2–ethylhexyl)sebacate (BEHS), 32.0% (w/w) poly(vinyl chloride; PVC) and 1.0% (w/w) potassium tetrakis(p–chlorophenyl)borate (KTpClPB) in terms of potentiometric performance characteristics. The electrode, which exhibits a stable potentiometric behaviour, shows a linear response in the concentration range of 1.0 × 10−5 – 1.0 × 10−1 mol L−1 (R2 = 0.998). The electrode has a detection limit of 7.94 × 10−6 mol L−1 and a fast response time of 7s. The electrode exhibits selectivity against Sr(II) ions in the presence of some cationic species and works without being affected by pH changes in the pH range of 6.0–9.0. The proposed electrode performs the determination of Sr(II) ions in water samples with high recoveries.</div>","PeriodicalId":21733,"journal":{"name":"Sensors International","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666351122000304/pdfft?md5=02fce394bbf49750a0eab7aa04c5a2b3&pid=1-s2.0-S2666351122000304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137242039","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