Seddigheh Chenarani, M. Ebrahimi, V. Arabali, S. Beyramabadi
The measurement of pharmaceutical compounds in biological fluids is considered an effective way to evaluate their effectiveness. On the other hand, lorazepam is a drug with good efficiency in treatment and some side effects, which measurement is very important. In this study, the ZnO nanoparticle was synthesized as an electrocatalyst by chemical precipitation method. In continuous a simple modification on paste electrode (PE) by ZnO nanoparticle (ZnO-NPs) and 1-hexyl-3-methylimidazolium chloride (HMImCl) was made and new sensor was used for sensing of lorazepam. The HMImCl/ZnO-NPs/PE showed catalytic behavior on oxidation signal of lorazepam and improved its signal about 2.17 times compared to unmodified PE. On the other hand, oxidation signal of lorazepam was reduced about 110 mV at surface of HMImCl/ZnO-NPs/PE compare to unmodified PE that confirm accelerating the electron exchange process after modification of sensor by HMImCl and ZnO-NPs as powerful catalysts. The HMImCl/ZnO-NPs/PE was used for monitoring of lorazepam in water and injection samples and results showed recovery data 98.5 to 103.5 % that are acceptable for a new sensor.
{"title":"ZnO/1-hexyl-3-methylimidazolium chloride paste electrode, highly sensitive lorazepam sensor","authors":"Seddigheh Chenarani, M. Ebrahimi, V. Arabali, S. Beyramabadi","doi":"10.5599/jese.1577","DOIUrl":"https://doi.org/10.5599/jese.1577","url":null,"abstract":"The measurement of pharmaceutical compounds in biological fluids is considered an effective way to evaluate their effectiveness. On the other hand, lorazepam is a drug with good efficiency in treatment and some side effects, which measurement is very important. In this study, the ZnO nanoparticle was synthesized as an electrocatalyst by chemical precipitation method. In continuous a simple modification on paste electrode (PE) by ZnO nanoparticle (ZnO-NPs) and 1-hexyl-3-methylimidazolium chloride (HMImCl) was made and new sensor was used for sensing of lorazepam. The HMImCl/ZnO-NPs/PE showed catalytic behavior on oxidation signal of lorazepam and improved its signal about 2.17 times compared to unmodified PE. On the other hand, oxidation signal of lorazepam was reduced about 110 mV at surface of HMImCl/ZnO-NPs/PE compare to unmodified PE that confirm accelerating the electron exchange process after modification of sensor by HMImCl and ZnO-NPs as powerful catalysts. The HMImCl/ZnO-NPs/PE was used for monitoring of lorazepam in water and injection samples and results showed recovery data 98.5 to 103.5 % that are acceptable for a new sensor.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71191149","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}
Jashanpreet Singh, J. Singh, Satish Kumar, H. Gill
Medical implants and other biomaterials are used by millions of individuals all over the globe to restore lost bodily functions due to injury or illness. Many of these implants fail after a short time or have difficulties, despite the fact that they play important roles in keeping a person's life safe or increasing the quality of their lives. It is the lack of biocompatibility that has proven to be the biggest downfall of biomaterials. Investments in this industry may be made using a thin film of hydroxyapatite powder (HAP) on stainless steel. Plates, screws, pins, and artificial joints are only some fixation devices for bones that often use 316L stainless steel. However, due to its unique advantageous qualities such as super-elasticity and low-profile feature, thin film HAP signals a high potential for use in compact new cardiac devices like the cardiovascular system and protecting stent grafts.
{"title":"Short review on hydroxyapatite powder coating for SS 316L","authors":"Jashanpreet Singh, J. Singh, Satish Kumar, H. Gill","doi":"10.5599/jese.1611","DOIUrl":"https://doi.org/10.5599/jese.1611","url":null,"abstract":"Medical implants and other biomaterials are used by millions of individuals all over the globe to restore lost bodily functions due to injury or illness. Many of these implants fail after a short time or have difficulties, despite the fact that they play important roles in keeping a person's life safe or increasing the quality of their lives. It is the lack of biocompatibility that has proven to be the biggest downfall of biomaterials. Investments in this industry may be made using a thin film of hydroxyapatite powder (HAP) on stainless steel. Plates, screws, pins, and artificial joints are only some fixation devices for bones that often use 316L stainless steel. However, due to its unique advantageous qualities such as super-elasticity and low-profile feature, thin film HAP signals a high potential for use in compact new cardiac devices like the cardiovascular system and protecting stent grafts.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71191215","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 recent years many different biomedical implants have been created for prolonged usage within the human body. The number of these implants has been steadily expanding. Mechanical characteristics of biomaterials, such as elastic modulus, hardness, tensile strength, and scratch resistance, are essential for implants. Biomechanical incompatibility is associated with implant fracture brought on by mechanical failure. The materials utilized to replace bone must have mechanical qualities comparable to those of bone. Metallic implants deteriorate due to wear, electrochemical breakdown, or a synergistic mix of the two. Biocompatible materials are used to repair or replace joints, fractured, or otherwise damaged bone. Corrosion is the main factor in hip implant failure. These characteristics also contain several other factors, such as solution factors, geometric factors, metallurgical factors, and mechanical factors. The mechanical properties of the implant materials were most important and had a considerable impact on the process of bone restoration. Metals have the highest tensile strength compared to other materials, followed by polymers and ceramics (except for zirconia). There are several issues with the metallic biomaterial that need to be fixed, including the release of harmful substances during metallic corrosion.
{"title":"Electrochemical behaviour and biocompatibility of claddings developed using microwave route","authors":"Gurbhej Singh, Amrinder Mehta, A. Bansal","doi":"10.5599/jese.1604","DOIUrl":"https://doi.org/10.5599/jese.1604","url":null,"abstract":"In recent years many different biomedical implants have been created for prolonged usage within the human body. The number of these implants has been steadily expanding. Mechanical characteristics of biomaterials, such as elastic modulus, hardness, tensile strength, and scratch resistance, are essential for implants. Biomechanical incompatibility is associated with implant fracture brought on by mechanical failure. The materials utilized to replace bone must have mechanical qualities comparable to those of bone. Metallic implants deteriorate due to wear, electrochemical breakdown, or a synergistic mix of the two. Biocompatible materials are used to repair or replace joints, fractured, or otherwise damaged bone. Corrosion is the main factor in hip implant failure. These characteristics also contain several other factors, such as solution factors, geometric factors, metallurgical factors, and mechanical factors. The mechanical properties of the implant materials were most important and had a considerable impact on the process of bone restoration. Metals have the highest tensile strength compared to other materials, followed by polymers and ceramics (except for zirconia). There are several issues with the metallic biomaterial that need to be fixed, including the release of harmful substances during metallic corrosion.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"75 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73923595","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}
Revolutionized lithium-ion batteries (LIB) have taken a very important role in our day today life by powering all sorts of electric devices. The selection of electrode materials is very important, which impacts the electrochemical performance of LIBs. Advancements in the electrode materials and synthesis procedure greatly influence the electrochemical performance. This review discusses the carbon derivatives based ternary composite as electrode materials. A detailed explanation of the ternary electrode materials synthesis and spectroscopic, microscopic and electrochemical analysis of LIBs has been carried out in this study. Ternary composites are composed of highly conducting carbon derivatives, which are incorporated with SnO2/ZnO/MoO3/SiOx and additionally any one metal oxide. Carbon derivatives-based ternary metal oxide composites can exhibit enhanced electrochemical results based on their heterostructures. The availability of more active sites contributes the reversible topotactic reactions during the charging-discharging process due to the porosity and other unique structures of different dimensions of the electrode materials. Concepts and strategies can extend the focus on developing the ternary metal oxides for high-performance LIBs.
{"title":"Brief review on carbon derivatives based ternary metal oxide composite electrode materials for lithium-ion batteries","authors":"V. Pavitra, I. Soni, B. Praveen, G. Nagaraju","doi":"10.5599/jese.1470","DOIUrl":"https://doi.org/10.5599/jese.1470","url":null,"abstract":"Revolutionized lithium-ion batteries (LIB) have taken a very important role in our day today life by powering all sorts of electric devices. The selection of electrode materials is very important, which impacts the electrochemical performance of LIBs. Advancements in the electrode materials and synthesis procedure greatly influence the electrochemical performance. This review discusses the carbon derivatives based ternary composite as electrode materials. A detailed explanation of the ternary electrode materials synthesis and spectroscopic, microscopic and electrochemical analysis of LIBs has been carried out in this study. Ternary composites are composed of highly conducting carbon derivatives, which are incorporated with SnO2/ZnO/MoO3/SiOx and additionally any one metal oxide. Carbon derivatives-based ternary metal oxide composites can exhibit enhanced electrochemical results based on their heterostructures. The availability of more active sites contributes the reversible topotactic reactions during the charging-discharging process due to the porosity and other unique structures of different dimensions of the electrode materials. Concepts and strategies can extend the focus on developing the ternary metal oxides for high-performance LIBs.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"70 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86124780","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}
Syed Fariq Fathullah Syed Yaacob, N. Mansor, Syaza Atikah Nizar, A. Olasupo, N. Mohamed, F. B. Mohd Suah
A novel non-plasticized nano-porous hybrid inorganic-organic polymer inclusion membrane (PIM) was synthesized, characterized, and evaluated as an anion exchange membrane for application in electrogenerative processes to recover Pd2+ ions. Ionic liquids 1-ethyl-3-methylimidazolium chloride (EMIM-Cl) and 1-butyl-3-methylimidazolium chloride (BMIM-Cl) were used as the carrier molecules in the polymeric network of PIM to enhance anion exchange process. This hybrid anion exchange membrane also consists of a polymeric matrix of non-plasticized cellulose triacetate modified by incorporating an inorganic material (silane) prepared by the sol-gel route. Different parameters affecting the ion transport performance efficiency, i.e., the composition of the membrane, type of ionic liquid (carrier molecule) and ion–exchange capacity, were investigated and optimized. In the electrogenerative process, the results revealed that the prepared PIM yields better recovery results for recovering Pd2+ ions from its chloride solution compared to the commercial anion exchange membrane Neosepta® AM-01, with a full recovery of 100 mg/L Pd2+ ions in 30 min. This preliminary study shows that the prepared low-cost hybrid anion exchange membrane PIM can act as an inexpensive material suitable for the rapid and efficient recovery of Pd2+ ions from an aqueous solution.
{"title":"Hybrid polymer inclusion membrane as anion exchange membrane for recovering Pd2+ ions in electrogenerative process","authors":"Syed Fariq Fathullah Syed Yaacob, N. Mansor, Syaza Atikah Nizar, A. Olasupo, N. Mohamed, F. B. Mohd Suah","doi":"10.5599/jese.1501","DOIUrl":"https://doi.org/10.5599/jese.1501","url":null,"abstract":"A novel non-plasticized nano-porous hybrid inorganic-organic polymer inclusion membrane (PIM) was synthesized, characterized, and evaluated as an anion exchange membrane for application in electrogenerative processes to recover Pd2+ ions. Ionic liquids 1-ethyl-3-methylimidazolium chloride (EMIM-Cl) and 1-butyl-3-methylimidazolium chloride (BMIM-Cl) were used as the carrier molecules in the polymeric network of PIM to enhance anion exchange process. This hybrid anion exchange membrane also consists of a polymeric matrix of non-plasticized cellulose triacetate modified by incorporating an inorganic material (silane) prepared by the sol-gel route. Different parameters affecting the ion transport performance efficiency, i.e., the composition of the membrane, type of ionic liquid (carrier molecule) and ion–exchange capacity, were investigated and optimized. In the electrogenerative process, the results revealed that the prepared PIM yields better recovery results for recovering Pd2+ ions from its chloride solution compared to the commercial anion exchange membrane Neosepta® AM-01, with a full recovery of 100 mg/L Pd2+ ions in 30 min. This preliminary study shows that the prepared low-cost hybrid anion exchange membrane PIM can act as an inexpensive material suitable for the rapid and efficient recovery of Pd2+ ions from an aqueous solution.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"08 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86021914","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}
P. Mohammadzadeh Jahani, Mohammad Reza Aflatoonian
In this study, an electrochemical sensor for the quantification of folic acid with voltammetric detection in physiological conditions was constructed. For this purpose, nickel ferrite (NiFe2O4) nanoparticles were used to modify the surface of a screen-printed graphite electrode (NiFe2O4/SPGE) and applied in the determination of folic acid. The modified electrode displays a strong electrochemical response to folic acid. Folic acid was determined electrochemically using the differential pulse voltammetry (DPV) technique with a detection limit of 0.09±0.001 µM in 0.2–147.0 µM linear range in phosphate buffer solution (PBS) at pH 7.0 with this NiFe2O4/SPGE sensor, which has the best electron transfer rate. Also, the sensitivity of the modified electrode was obtained as 0.1139 µA µM-1. The NiFe2O4/SPGE sensor was successfully applied for the determination of folic acid in real samples.
{"title":"Voltammetric folic acid sensor based on nickel ferrite nanoparticles modified-screen printed graphite electrode","authors":"P. Mohammadzadeh Jahani, Mohammad Reza Aflatoonian","doi":"10.5599/jese.1607","DOIUrl":"https://doi.org/10.5599/jese.1607","url":null,"abstract":"In this study, an electrochemical sensor for the quantification of folic acid with voltammetric detection in physiological conditions was constructed. For this purpose, nickel ferrite (NiFe2O4) nanoparticles were used to modify the surface of a screen-printed graphite electrode (NiFe2O4/SPGE) and applied in the determination of folic acid. The modified electrode displays a strong electrochemical response to folic acid. Folic acid was determined electrochemically using the differential pulse voltammetry (DPV) technique with a detection limit of 0.09±0.001 µM in 0.2–147.0 µM linear range in phosphate buffer solution (PBS) at pH 7.0 with this NiFe2O4/SPGE sensor, which has the best electron transfer rate. Also, the sensitivity of the modified electrode was obtained as 0.1139 µA µM-1. The NiFe2O4/SPGE sensor was successfully applied for the determination of folic acid in real samples.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"100 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88542168","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}
Raed Muslim Mohabis, F. Fazeli, I. Amini, V. Azizkhani
Ascorbic acid is a water-soluble vitamin essential in human nutrition, an antioxidant, a scavenger of free radicals in biological systems, and a cofactor of several enzymes. The reference range for ascorbic acid in healthy people is 6 - 20 mg L-1. The variable concentration of ascorbic acid within biology fluids was found in clinical investigations to be a metric for assessing the exact amount of oxidative stress in the body's metabolism. Electroanalytical techniques are a group of methods in analytical chemistry, especially with extensive application in pharmaceutical industries. These techniques attracted further attention due to their unique characteristics, such as reduced sample or solvent consumption, high analysis speed, low operating cost, and high sensitivity, which made them suitable candidates for replacement or supplementation for spectrophotometry and separation approaches. The purpose of this article is to scrutinize the mechanisms and applications of current electroanalytical methods, including amperometric techniques, square wave voltammetry, differential pulse voltammetry and cyclic voltammetry, in their applications in pharmaceutical analysis for the detection of ascorbic acid. Related examples have been cited in the form of selected studies.
{"title":"An overview of recent advances in the detection of ascorbic acid by electrochemical techniques","authors":"Raed Muslim Mohabis, F. Fazeli, I. Amini, V. Azizkhani","doi":"10.5599/jese.1561","DOIUrl":"https://doi.org/10.5599/jese.1561","url":null,"abstract":"Ascorbic acid is a water-soluble vitamin essential in human nutrition, an antioxidant, a scavenger of free radicals in biological systems, and a cofactor of several enzymes. The reference range for ascorbic acid in healthy people is 6 - 20 mg L-1. The variable concentration of ascorbic acid within biology fluids was found in clinical investigations to be a metric for assessing the exact amount of oxidative stress in the body's metabolism. Electroanalytical techniques are a group of methods in analytical chemistry, especially with extensive application in pharmaceutical industries. These techniques attracted further attention due to their unique characteristics, such as reduced sample or solvent consumption, high analysis speed, low operating cost, and high sensitivity, which made them suitable candidates for replacement or supplementation for spectrophotometry and separation approaches. The purpose of this article is to scrutinize the mechanisms and applications of current electroanalytical methods, including amperometric techniques, square wave voltammetry, differential pulse voltammetry and cyclic voltammetry, in their applications in pharmaceutical analysis for the detection of ascorbic acid. Related examples have been cited in the form of selected studies.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"36 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76408166","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}
Yasser Fakri Mustafa, G. Chehardoli, S. Habibzadeh, Z. Arzehgar
In various pharmaceutical and food industries, sulfite is utilized for the inhibition of nonenzymatic and enzymatic browning. Also, in brewing industries, it acts as an antioxidizing and antibacterial agent. Several toxic and adverse reactions, including vitamin deficiency, hypersensitivity, and allergic diseases, have been attributed to sulfite ingestion that may cause dysbiotic oral and gut microbiota events. Thus, the content of sulfite in foods must be controlled and monitored, and it is essential to find a specific, reproducible, and sensitive method to detect sulfite. Some analytical solutions are being tested to quantify sulfite. However, due to their advantage over traditional techniques, electroanalytical techniques are attracting much attention because they are simple, fast, affordable, and sensitive to implement. In addition, by the electrode modification, the morphology and size can be controlled, resulting in the miniaturization to be used in portable electrochemical devices. Therefore, the present review addressed some articles on the electrooxidation of sulfite from real samples using various electrochemical sensors.
{"title":"Electrochemical detection of sulfite in food samples","authors":"Yasser Fakri Mustafa, G. Chehardoli, S. Habibzadeh, Z. Arzehgar","doi":"10.5599/jese.1555","DOIUrl":"https://doi.org/10.5599/jese.1555","url":null,"abstract":"In various pharmaceutical and food industries, sulfite is utilized for the inhibition of nonenzymatic and enzymatic browning. Also, in brewing industries, it acts as an antioxidizing and antibacterial agent. Several toxic and adverse reactions, including vitamin deficiency, hypersensitivity, and allergic diseases, have been attributed to sulfite ingestion that may cause dysbiotic oral and gut microbiota events. Thus, the content of sulfite in foods must be controlled and monitored, and it is essential to find a specific, reproducible, and sensitive method to detect sulfite. Some analytical solutions are being tested to quantify sulfite. However, due to their advantage over traditional techniques, electroanalytical techniques are attracting much attention because they are simple, fast, affordable, and sensitive to implement. In addition, by the electrode modification, the morphology and size can be controlled, resulting in the miniaturization to be used in portable electrochemical devices. Therefore, the present review addressed some articles on the electrooxidation of sulfite from real samples using various electrochemical sensors.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"29 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84427118","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}
A new mononuclear Fe(II) complex with the formula [Fe(HL)2Cl2] (1) (HL= N-(2-hydroxy-1-naphthylidene)-2-methyl aniline) was synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), UV–Vis and elemental analysis. The spectroscopy analyses revealed the two Schiff base ligands via oxygen and nitrogen atoms and two chloride atoms create an octahedral geometry. The nano-size of [Fe(HL)2Cl2] complex (2) was synthesized by the sonochemical process. Characterization of nano-complex (2) was carried out via X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-Vis, FT-IR spectroscopy. The nano-complex (2) average size synthesized via the sonochemical method was approximately 52 nm. In this work, a simple sensor based on a carbon paste electrode modified with [Fe(HL)2Cl2] nano-complex and the ionic liquid - IL (1-Butyl-3-methylimidazolium hexafluorophosphate) was developed ([Fe(HL)2Cl2] nano-complex-IL/CPE) for convenient and fast electrochemical detection of kojic acid. The modified electrode considerably improves voltammetric sensitivity toward kojic acid compared to the bare electrode. Experimental conditions influencing the analytical performance of the modified electrode were optimized. Under optimal conditions, the oxidation peak current was proportional to kojic acid concentration in the range from 0.3 to 237.0 μM with a detection limit of 0.09±0.001 μM. The [Fe(HL)2Cl2] nano-complex-IL/CPE sensor was successfully applied for the highly sensitive determination of kojic acid in real samples with satisfactory results.
{"title":"Voltammetric sensor for determination of kojic acid in real samples using carbon paste electrode modified by [Fe(HL)2Cl2] nano-complex and ionic liquid","authors":"M. Fazli, N. Akbarzadeh‐T","doi":"10.5599/jese.1486","DOIUrl":"https://doi.org/10.5599/jese.1486","url":null,"abstract":"A new mononuclear Fe(II) complex with the formula [Fe(HL)2Cl2] (1) (HL= N-(2-hydroxy-1-naphthylidene)-2-methyl aniline) was synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), UV–Vis and elemental analysis. The spectroscopy analyses revealed the two Schiff base ligands via oxygen and nitrogen atoms and two chloride atoms create an octahedral geometry. The nano-size of [Fe(HL)2Cl2] complex (2) was synthesized by the sonochemical process. Characterization of nano-complex (2) was carried out via X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-Vis, FT-IR spectroscopy. The nano-complex (2) average size synthesized via the sonochemical method was approximately 52 nm. In this work, a simple sensor based on a carbon paste electrode modified with [Fe(HL)2Cl2] nano-complex and the ionic liquid - IL (1-Butyl-3-methylimidazolium hexafluorophosphate) was developed ([Fe(HL)2Cl2] nano-complex-IL/CPE) for convenient and fast electrochemical detection of kojic acid. The modified electrode considerably improves voltammetric sensitivity toward kojic acid compared to the bare electrode. Experimental conditions influencing the analytical performance of the modified electrode were optimized. Under optimal conditions, the oxidation peak current was proportional to kojic acid concentration in the range from 0.3 to 237.0 μM with a detection limit of 0.09±0.001 μM. The [Fe(HL)2Cl2] nano-complex-IL/CPE sensor was successfully applied for the highly sensitive determination of kojic acid in real samples with satisfactory results.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"44 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82554204","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}
Due to the rapid growth of the cosmetic industry in recent years, the development of new, reliable, cost-effective, ease of use and rapid methods to assay cosmetics’ quality is of particular importance. Modern electrochemistry provides powerful analytical techniques with excellent sensitivity, instrumental simplicity and portability, providing reliable alternatives to conventional analytical methods. This review aims to give readers a clear view of advances in areas of electrode modification, successful strategies for signal amplification, and miniaturization techniques used in electroanalytical devices for cosmetics control and safety. We have summarized recent trends in the nonenzymatic electrochemical sensor systems applied in the analysis of cosmetic products revealing that there are a variety of efficient sensors for whitening agents, preservatives, UV filters, heavy metals, etc. In conclusion, current challenges related to the sensors design and future perspectives are outlined.
{"title":"Electrochemical sensors for the safety and quality control of cosmetics: An overview of achievements and challenges","authors":"T. Dodevska, Dobrin Hadzhiev, I. Shterev","doi":"10.5599/jese.1507","DOIUrl":"https://doi.org/10.5599/jese.1507","url":null,"abstract":"Due to the rapid growth of the cosmetic industry in recent years, the development of new, reliable, cost-effective, ease of use and rapid methods to assay cosmetics’ quality is of particular importance. Modern electrochemistry provides powerful analytical techniques with excellent sensitivity, instrumental simplicity and portability, providing reliable alternatives to conventional analytical methods. This review aims to give readers a clear view of advances in areas of electrode modification, successful strategies for signal amplification, and miniaturization techniques used in electroanalytical devices for cosmetics control and safety. We have summarized recent trends in the nonenzymatic electrochemical sensor systems applied in the analysis of cosmetic products revealing that there are a variety of efficient sensors for whitening agents, preservatives, UV filters, heavy metals, etc. In conclusion, current challenges related to the sensors design and future perspectives are outlined.","PeriodicalId":15660,"journal":{"name":"Journal of Electrochemical Science and Engineering","volume":"12 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78300626","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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