In this work, emphasis is to utilize FRET method to analyze GOx and glucose interaction using fluorescent ZnO QDs as the probes. Fluorescent ZnO and ZnOext QDs were synthesized using sol– gel technique and green synthesis method as donor and acceptor nanoprobes. Structural, optical and morphological characterization of QDS were carried out using UV-visible absorption, fluorescence, FTIR, XRD and field emission scanning electron microscopy. Band gap estimated from Tauc plot is 3.49 and 3.35 eV for ZnO and ZnOext QDs and XRD reveal Wurtzite structure of grown crystals. Systematic absorption study for ZnO–GOx and ZnOext–GOx reveal association constant of –8.3361 M–1 and –2.57646 M –1 for ZnO and ZnOext using Benesi-Hildebrand plot. The binding constant obtained from Stern-Volmer equation is 1.0466 μM –1 and 1.97 μM –1 for ZnO/ZnOext–GOx conjugate and suggest static quenching in the system. CD spectroscopy reveal native state of protein in conjugate sytem. Constant Förster radius (Ro) in ZnOext–GOx system suggest the average 〈κ2〉 as 2/3 and is independent of donor–acceptor distance as normally assumed in FRET system varies from ∼4.5% in ZnO–GOx and ∼5% in ZnOext–GOx system. It indicate better energy transferrin earlier system than formal. The physiological range of glucose from 60 mg–440 mg/dl using this technique in which ZnOext–GOx as donor probe exhibit better response towards glucose than ZnO–GOx system and correlated to the presence of phyotochemicals on the QD surface.
{"title":"Fluorescent ZnO Quantum Dot Probe to Study Glucose–Glucose Oxidase Interaction via Fluorescence Resonance Energy Transfer","authors":"A. K. Verma, Z. Ansari","doi":"10.1166/sl.2020.4232","DOIUrl":"https://doi.org/10.1166/sl.2020.4232","url":null,"abstract":"In this work, emphasis is to utilize FRET method to analyze GOx and glucose interaction using fluorescent ZnO QDs as the probes. Fluorescent ZnO and ZnOext QDs were synthesized using sol– gel technique and green synthesis method as donor and acceptor nanoprobes.\u0000 Structural, optical and morphological characterization of QDS were carried out using UV-visible absorption, fluorescence, FTIR, XRD and field emission scanning electron microscopy. Band gap estimated from Tauc plot is 3.49 and 3.35 eV for ZnO and ZnOext QDs and XRD reveal Wurtzite\u0000 structure of grown crystals. Systematic absorption study for ZnO–GOx and ZnOext–GOx reveal association constant of –8.3361 M–1 and –2.57646 M –1 for ZnO and ZnOext using Benesi-Hildebrand\u0000 plot. The binding constant obtained from Stern-Volmer equation is 1.0466 μM –1 and 1.97 μM –1 for ZnO/ZnOext–GOx conjugate and suggest static quenching in the system. CD spectroscopy reveal native state\u0000 of protein in conjugate sytem. Constant Förster radius (Ro) in ZnOext–GOx system suggest the average 〈κ2〉 as 2/3 and is independent of donor–acceptor distance as normally assumed in FRET system varies\u0000 from ∼4.5% in ZnO–GOx and ∼5% in ZnOext–GOx system. It indicate better energy transferrin earlier system than formal. The physiological range of glucose from 60 mg–440 mg/dl using this technique in which ZnOext–GOx\u0000 as donor probe exhibit better response towards glucose than ZnO–GOx system and correlated to the presence of phyotochemicals on the QD surface.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"37 1","pages":"351-365"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81565929","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}
Havva Nur Gurbuz, P. U. Arpaci, A. B. Sariguney, Erdal Kocabaş, A. Coşkun, E. Cagil
Fluorescent labeling of L-929 fibroblast cells was studied by using newly synthesized ligand which was named as 2- N -methylamino-5-(pyrene-1-yl)-thiazole (ABS 40). The maximum fluorescence intensity of ABS 40 was detected at an excitation and emission wavelengths of 350 nm and 400 nm. Fluorescence intensity of the ligand was changed by the addition of DNA from calf thymus (CT-DNA) and human serum albumin (HSA). Both biomolecules and ABS 40 formed complexes that changed the fluorescence intensity of the ligand at the given wavelengths. Cytotoxicity tests were done with XTT analysis. L-929 fibroblast cells were cultured in the presence of ABS 40 to show cell labeling. Results showed that ABS 40 at 318 μM was labeled the cells at an excitation wavelength of 403.7 nm by using confocal microscopy. in vivo cell labeling was also confirmed by using Ct-DNA immobilized iron nanoparticles.
{"title":"Development of a New Nontoxic Thiazole Derivative Dye for Cell Labeling by Using Nanoparticles","authors":"Havva Nur Gurbuz, P. U. Arpaci, A. B. Sariguney, Erdal Kocabaş, A. Coşkun, E. Cagil","doi":"10.1166/sl.2020.4215","DOIUrl":"https://doi.org/10.1166/sl.2020.4215","url":null,"abstract":"Fluorescent labeling of L-929 fibroblast cells was studied by using newly synthesized ligand which was named as 2- N -methylamino-5-(pyrene-1-yl)-thiazole (ABS 40). The maximum fluorescence intensity of ABS 40 was detected at an excitation and emission wavelengths of 350 nm and 400\u0000 nm. Fluorescence intensity of the ligand was changed by the addition of DNA from calf thymus (CT-DNA) and human serum albumin (HSA). Both biomolecules and ABS 40 formed complexes that changed the fluorescence intensity of the ligand at the given wavelengths. Cytotoxicity tests were done with\u0000 XTT analysis. L-929 fibroblast cells were cultured in the presence of ABS 40 to show cell labeling. Results showed that ABS 40 at 318 μM was labeled the cells at an excitation wavelength of 403.7 nm by using confocal microscopy. in vivo cell labeling was also confirmed by\u0000 using Ct-DNA immobilized iron nanoparticles.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"4 1","pages":"293-298"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81352223","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}
This work has proposed a device i.e., Dielectric Modulated (DM) Junctionless Transistor which is utilizes as Label-Free (LF) electrical characteristic detection of bio-molecules. The electrical characteristics used for the detection of biomolecules are electric field, surface potential, drain current and threshold voltage (Vth). Due to immobilization of biomolecules in the cavity region, the threshold voltage change in comparison to the absence of biomolecule, which is utilizes as the sensitivity metric. The sensitivity of biomolecule detection can be enhanced by using asymmetric gate operation of the device. In asymmetric mode the degree of sensitivity is almost five times higher than that of the symmetric mode of operation.
{"title":"Improved Sensitivity of Dielectric Modulated Junctionless Transistor for Nanoscale Biosensor Design","authors":"Shradhya Singh, S. Bala, B. Raj, B. Raj","doi":"10.1166/sl.2020.4224","DOIUrl":"https://doi.org/10.1166/sl.2020.4224","url":null,"abstract":"This work has proposed a device i.e., Dielectric Modulated (DM) Junctionless Transistor which is utilizes as Label-Free (LF) electrical characteristic detection of bio-molecules. The electrical characteristics used for the detection of biomolecules are electric field, surface potential,\u0000 drain current and threshold voltage (Vth). Due to immobilization of biomolecules in the cavity region, the threshold voltage change in comparison to the absence of biomolecule, which is utilizes as the sensitivity metric. The sensitivity of biomolecule detection can be enhanced\u0000 by using asymmetric gate operation of the device. In asymmetric mode the degree of sensitivity is almost five times higher than that of the symmetric mode of operation.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"50 1","pages":"328-333"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89358676","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}
There are few reports on high rotational speed measurement of brushless direct current (DC) motors based on giant magneto-inductive effect. In this study, a rotational speed measurement system based on giant magneto-inductive effect is established for measuring the rotational speeds of DC motors. Successive sawtooth waves are found when rotating shaft is close to the GMI sensor. Through using the magneto-inductive sensing system, different high rotational speeds (1500∼24000 r/min) of the motor are accurately measured. Therefore, this giant magneto-inductive sensor may be used for high rotational speed measurement of motors.
{"title":"A Rotation-Speed Measurement System Based on Magneto-Inductive Effect","authors":"Tao Wang, Bicong Wang, Yuyi Chen, Y. Luo","doi":"10.1166/sl.2020.4219","DOIUrl":"https://doi.org/10.1166/sl.2020.4219","url":null,"abstract":"There are few reports on high rotational speed measurement of brushless direct current (DC) motors based on giant magneto-inductive effect. In this study, a rotational speed measurement system based on giant magneto-inductive effect is established for measuring the rotational speeds\u0000 of DC motors. Successive sawtooth waves are found when rotating shaft is close to the GMI sensor. Through using the magneto-inductive sensing system, different high rotational speeds (1500∼24000 r/min) of the motor are accurately measured. Therefore, this giant magneto-inductive sensor\u0000 may be used for high rotational speed measurement of motors.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"83 2","pages":"299-303"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72473608","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}
Inspection with thermography is a non-invasive, non-destructive process used in Power Systems facilities. Most temperature signatures that are not in the visible light range can be measured using thermal cameras, thus enabling the search of thermal behavior of porcelain insulators. Overheating can help to detect problems, concerning the proper operation of insulators. The precision of temperature measurement using an infrared camera is influenced by the value of emissivity parameter that is set on camera. In the present study the influence of distance and angle between the camera and the insulator on emissivity parameter value selection in camera is examined experimentally.
{"title":"Porcelain Insulator Inspection Using Infrared Thermography","authors":"P. I. Lerantzis, P. Tsarabaris, N. Theodorou","doi":"10.1166/sl.2020.4229","DOIUrl":"https://doi.org/10.1166/sl.2020.4229","url":null,"abstract":"Inspection with thermography is a non-invasive, non-destructive process used in Power Systems facilities. Most temperature signatures that are not in the visible light range can be measured using thermal cameras, thus enabling the search of thermal behavior of porcelain insulators.\u0000 Overheating can help to detect problems, concerning the proper operation of insulators. The precision of temperature measurement using an infrared camera is influenced by the value of emissivity parameter that is set on camera. In the present study the influence of distance and angle between\u0000 the camera and the insulator on emissivity parameter value selection in camera is examined experimentally.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"10 13","pages":"288-292"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72489652","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}
X-ray diffraction (XRD) and Raman spectroscopy analyses were performed on untreated calcium phosphate samples of the two mining zones of Morocco: Benguerir and Khouribga. XRD has been examined for the determination of the structure parameters and their textures. However, a comparative study was conducted between the two types of phosphate to implement the observed structural differences. XRD Results showed that the comparison between the two samples reveals significant differences at the level of the refinement parameters, crystallite size and microstrain but no changes in the crystal system. Raman analysis assignments are given for powdered samples of the organically important compound, calcium phosphate, in the 0–3600 cm–1 range. The wavenumber positions of Raman bands were different and changed between the two different samples. The results may be of significance in understanding the relationship between XRD analysis and the parameters of material structure.
{"title":"A Comprehensive Analysis of Various Structural Parameters of the Untreated Calcium Phosphate from Two Moroccan Mining Zones","authors":"Ikram Labtaini, K. El-hami","doi":"10.1166/sl.2020.4216","DOIUrl":"https://doi.org/10.1166/sl.2020.4216","url":null,"abstract":"X-ray diffraction (XRD) and Raman spectroscopy analyses were performed on untreated calcium phosphate samples of the two mining zones of Morocco: Benguerir and Khouribga. XRD has been examined for the determination of the structure parameters and their textures. However, a comparative\u0000 study was conducted between the two types of phosphate to implement the observed structural differences. XRD Results showed that the comparison between the two samples reveals significant differences at the level of the refinement parameters, crystallite size and microstrain but no changes\u0000 in the crystal system. Raman analysis assignments are given for powdered samples of the organically important compound, calcium phosphate, in the 0–3600 cm–1 range. The wavenumber positions of Raman bands were different and changed between the two different samples.\u0000 The results may be of significance in understanding the relationship between XRD analysis and the parameters of material structure.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86647868","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}
The ever growing energy demand explored the generation of power by distributed resources. The distributed resources like photovoltaic, wind, fuel cell etc. are available in nature at free of cost. Photovoltaic cell is used to produce electrical energy by tracking energy from solar irradiation. Perturbation and Observing method is one of the option to track the concentrated power from solar irradiation. It is a clean source, but intermittent in nature. This is overcome by integrating a fuel cell (FC), the new energy source. Proton Exchanging Membrane (PEM) fuel cell is integrated with PV, and this hybrid DC source is integrated to micro grid using power electronic interfacing devices. The design of proper controller operation makes it to work in grid connected mode. The simulation is performed using Matlab-Simulink environment and results validates the performance of hybrid system.
{"title":"Power Management in a Hybrid Grid Involving Photo Voltaic and Proton Exchange Membrane Fuel Cell","authors":"N. Shetty, R. L. Chakrasali","doi":"10.1166/sl.2020.4220","DOIUrl":"https://doi.org/10.1166/sl.2020.4220","url":null,"abstract":"The ever growing energy demand explored the generation of power by distributed resources. The distributed resources like photovoltaic, wind, fuel cell etc. are available in nature at free of cost. Photovoltaic cell is used to produce electrical energy by tracking energy from solar irradiation.\u0000 Perturbation and Observing method is one of the option to track the concentrated power from solar irradiation. It is a clean source, but intermittent in nature. This is overcome by integrating a fuel cell (FC), the new energy source. Proton Exchanging Membrane (PEM) fuel cell is integrated\u0000 with PV, and this hybrid DC source is integrated to micro grid using power electronic interfacing devices. The design of proper controller operation makes it to work in grid connected mode. The simulation is performed using Matlab-Simulink environment and results validates the performance\u0000 of hybrid system.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"29 1","pages":"259-267"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87141526","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}
The yield of the sugarcane depends on the quality of the seed used for plantation. The traditional methods of cultivation of sugarcane by cutting random sections of a stalk called sets and sowing them for propagation purposes result in quality degradation. When a defective sugarcane part is used for propagation purposes poor quality sugarcanes are obtained. This results in wastage of a large number of resources used for cultivation purposes. In the paper, we propose an efficient method using image processing for determining the nodes of the sugarcane crop that are found suitable for the propagation of good quality sugarcane. We present the design of a hardware prototype that automatically cuts and gives the cultivator a suitable node that has to be sowed for fresh cultivation. We validate the proposed method by determining the quality of fifty samples of sugarcane stalks and observe that our method works with 93.62 percent efficiency.
{"title":"Quality Monitoring of Saccharum officinarum (Sugarcane) Using Image Analysis","authors":"Jayavanta Shakthi Poorna Sekar, R. Jayaparvathy","doi":"10.1166/sl.2020.4221","DOIUrl":"https://doi.org/10.1166/sl.2020.4221","url":null,"abstract":"The yield of the sugarcane depends on the quality of the seed used for plantation. The traditional methods of cultivation of sugarcane by cutting random sections of a stalk called sets and sowing them for propagation purposes result in quality degradation. When a defective sugarcane\u0000 part is used for propagation purposes poor quality sugarcanes are obtained. This results in wastage of a large number of resources used for cultivation purposes. In the paper, we propose an efficient method using image processing for determining the nodes of the sugarcane crop that are found\u0000 suitable for the propagation of good quality sugarcane. We present the design of a hardware prototype that automatically cuts and gives the cultivator a suitable node that has to be sowed for fresh cultivation. We validate the proposed method by determining the quality of fifty samples of\u0000 sugarcane stalks and observe that our method works with 93.62 percent efficiency.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"60 1","pages":"304-310"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72528633","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}
In this paper, novel sensors using physical phenomena deduced from ultrasound waves are proposed to overcome problems of cost, availability and adaptability in the measure of position, velocity and tilt of Autonomous Land Vehicles. The true challenge for the Autonomous Land Vehicles concerns essentially the accurate perception of hazardous environments to receive faithful information about reality. Current sensors used nowadays are viewed very expensive, complicated and unable to give accurate measures without time delay. For that, our contribution is located in this context. At first, fundamental principle of ultrasonic waves and their specific physical properties are described to introduce their use in the proposed sensors. Mechatronic concepts of sensors are then detailed with the corresponding mathematical models. Indeed, online implementation and real time experiences are conducted to verify the effectiveness of measurements.
{"title":"Novel Mechatronic Sensors for Irregular Movements of Autonomous Land Vehicles","authors":"R. Boucetta, Radwen Bahri, Saloua Bel Hadj Ali","doi":"10.1166/sl.2020.4218","DOIUrl":"https://doi.org/10.1166/sl.2020.4218","url":null,"abstract":"In this paper, novel sensors using physical phenomena deduced from ultrasound waves are proposed to overcome problems of cost, availability and adaptability in the measure of position, velocity and tilt of Autonomous Land Vehicles. The true challenge for the Autonomous Land Vehicles\u0000 concerns essentially the accurate perception of hazardous environments to receive faithful information about reality. Current sensors used nowadays are viewed very expensive, complicated and unable to give accurate measures without time delay. For that, our contribution is located in this\u0000 context. At first, fundamental principle of ultrasonic waves and their specific physical properties are described to introduce their use in the proposed sensors. Mechatronic concepts of sensors are then detailed with the corresponding mathematical models. Indeed, online implementation and\u0000 real time experiences are conducted to verify the effectiveness of measurements.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"4 1","pages":"280-287"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74935336","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}
Mahzad Firouzi, M. Giahi, M. Najafi, S. Homami, Seyed Husain Hashemi Mousavi
Herein, an electrochemical sensor has been proposed for the determination of losartan (LOS) in pharmaceutical formulations. A room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM.PF6) was applied to fabricate a modified carbon ceramic electrode (IL-CCE). The electrochemical studies were performed by the cyclic and linear sweep voltammetry (CV and LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques. The anodic peak currents were increased with the LOS concentration and indicated a linear dynamic range from 20 to 200 μM and a detection limit of 11.7 μM (S/N = 3) under the optimized conditions. Satisfactory results were obtained by analysis of LOS in pharmaceutical tablets.
{"title":"Electrochemical Behavior and Voltammetric Determination of Losartan Using Carbon Ceramic Electrode Modified with Room Temperature Ionic Liquid","authors":"Mahzad Firouzi, M. Giahi, M. Najafi, S. Homami, Seyed Husain Hashemi Mousavi","doi":"10.1166/sl.2020.4223","DOIUrl":"https://doi.org/10.1166/sl.2020.4223","url":null,"abstract":"Herein, an electrochemical sensor has been proposed for the determination of losartan (LOS) in pharmaceutical formulations. A room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM.PF6) was applied to fabricate a modified carbon ceramic electrode\u0000 (IL-CCE). The electrochemical studies were performed by the cyclic and linear sweep voltammetry (CV and LSV), chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques. The anodic peak currents were increased with the LOS concentration and indicated a linear dynamic range\u0000 from 20 to 200 μM and a detection limit of 11.7 μM (S/N = 3) under the optimized conditions. Satisfactory results were obtained by analysis of LOS in pharmaceutical tablets.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"11 1","pages":"322-327"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72666095","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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