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Li Z, Liang S, Zhang C, Zhou L, Luo F, Lou Z, Chen Z, Zhang X, Yang M. A ratiometric fluorescence and colorimetry dual-signal sensing strategy based on o-phenylenediamine and AuNCs for determination of Cu 2+ and glyphosate. Mikrochim Acta 2024; 191:423. [PMID: 38922503 DOI: 10.1007/s00604-024-06484-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 06/03/2024] [Indexed: 06/27/2024]
Abstract
A ratiometric fluorescence sensing strategy has been developed for the determination of Cu2+ and glyphosate with high sensitivity and specificity based on OPD (o-phenylenediamine) and glutathione-stabilized gold nanoclusters (GSH-AuNCs). Water-soluble 1.75-nm size GSH-AuNCs with strong red fluorescence and maximum emission wavelength at 682 nm were synthesized using GSH as the template. OPD was oxidized by Cu2+, which produced the bright yellow fluorescence oxidation product 2,3-diaminophenazine (DAP) with a maximum fluorescence emission peak at 570 nm. When glyphosate existed in the system, the chelation between glyphosate and Cu2+ hindered the formation of DAP and reduced the fluorescence intensity of the system at the wavelength of 570 nm. Meanwhile, the fluorescence intensity at the wavelength of 682 nm remained basically stable. It exhibited a good linear relationship towards Cu2+ and glyphosate in water in the range 1.0-10 µM and 0.050-3.0 µg/mL with a detection limit of 0.547 µM and 0.0028 µg/mL, respectively. The method was also used for the semi-quantitative determination of Cu2+ and glyphosate in water by fluorescence color changes visually detected by the naked eyes in the range 1.0-10 µM and 0.30-3.0 µg/mL, respectively. The sensing strategy showed higher sensitivity, more obvious color changes, and better disturbance performance, satisfying with the detection demands of Cu2+ and glyphosate in environmental water samples. The study provides a reliable detection strategy in the environment safety fields.
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Affiliation(s)
- Ziqiang Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
| | - Shuang Liang
- College of Plant Protection, Jilin Agricultural University, Jilin, 130000, China
| | - Changsheng Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
- College of Plant Protection, Jilin Agricultural University, Jilin, 130000, China
| | - Li Zhou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
| | - Fengjian Luo
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
| | - Zhengyun Lou
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
| | - Zongmao Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China
| | - Xinzhong Zhang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China.
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China.
| | - Mei Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China.
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, China.
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2
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Garazhian E, Kalate Bojdi M, Behbahani M. Decorated graphene oxide with gold nanoparticles as a sensitive modified carbon paste electrode for simultaneous determination of tyrosine and uric acid. Sci Rep 2023; 13:17501. [PMID: 37840042 PMCID: PMC10577133 DOI: 10.1038/s41598-023-44540-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023] Open
Abstract
It is presented here as a simple, selective, rapid, low-cost, with a wide linear range method to simultaneously determine tyrosine and uric acid using a modified carbon paste electrode decorated with graphene oxide and gold nanoparticles (GO/AuNPs/MCPE). In order to characterize and evaluate the morphology and constituents of the nanostructures, X-ray diffraction spectroscopy, Transmission electron microscopes, Dynamic light scattering, Zeta potential, electrochemical impedance spectroscopy, and Voltammetry were employed. The current response on the surface of the modified electrode had a dynamic linear range relationship in the concentrations of 0.14-340.00 µmol L-1 and 0.06-141.00 µmol L-1 for tyrosine and uric acid, respectively, and the method detection limit (MDL) was 0.0060 µmol L-1 and 0.0037 µmol L-1, respectively. This modified electrode provided high stability, sensitivity, and acceptable reproducibility for voltammetric measurements of tyrosine and uric acid simultaneously in a biological matrix.
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Affiliation(s)
- Elahe Garazhian
- Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, Iran
| | - Majid Kalate Bojdi
- Department of Chemistry, Faculty of Science, University of Birjand, Birjand, South Khorasan, Iran.
| | - Mohammad Behbahani
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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3
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Salman BI, Hassan AI, Saraya RE, Ibrahim AE, Mohammed BS, Batakoushy HA, El Deeb S, Hassan YF. Development of cysteine-doped MnO 2 quantum dots for spectrofluorimetric estimation of copper: applications in different matrices. Anal Bioanal Chem 2023; 415:5529-5538. [PMID: 37432444 PMCID: PMC10444647 DOI: 10.1007/s00216-023-04827-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/19/2023] [Indexed: 07/12/2023]
Abstract
Copper (Cu) plays a role in maintaining healthy nerve cells and the immune system. Osteoporosis is a high-risk factor for Cu deficiency. In the proposed research, unique green, fluorescent cysteine-doped MnO2 quantum dots (Cys@MnO2 QDs) were synthesized and assessed for the determination of Cu in different food and hair samples. The developed quantum dots were synthesized with the help of cysteine using a straightforward ultrasonic approach to create 3D fluorescent Cys@MnO2 QDs. The resulting QDs' morphological and optical characteristics were carefully characterized. By adding Cu ions, the intensity of fluorescence for the produced Cys@MnO2 QDs was found to be dramatically reduced. Additionally, the applicability of Cys@MnO2 QDs as a new luminous nanoprobe was found to be strengthened by the quenching effect grounded on the Cu-S bonding. The concentrations of Cu2+ ions were estimated within the range of 0.06 to 7.00 µg mL-1, with limit of quantitation equal to 33.33 ng mL-1 and detection limit equal to 10.97 ng mL-1. The Cys@MnO2 QD technique was applied successfully for the quantification of Cu in a variety of foods, including chicken meat, turkey, and tinned fish, as well as in human hair samples. The chance that this novel technique could be a useful tool for figuring out the amount of cysteine in bio-samples is increased by the sensing system's remarkable advantages, which include being rapid, simple, and economical.
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Affiliation(s)
- Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed I Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Roshdy E Saraya
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, 42511, Egypt
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman
| | - Bassam Shaaban Mohammed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Hany A Batakoushy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Menoufia University, Shibin-Elkom, 32511, Egypt
| | - Sami El Deeb
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat Al Mauz, P.O. Box 33, Nizwa, 616, Sultanate of Oman.
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universitaet Braunschweig, 38106, Braunschweig, Germany.
| | - Yasser F Hassan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
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Warren-Vega WM, Fonseca-Aguiñaga R, González-Gutiérrez LV, Romero-Cano LA. A critical review on the assessment of the quality and authenticity of Tequila by different analytical techniques: Recent advances and perspectives. Food Chem 2023; 408:135223. [PMID: 36535180 DOI: 10.1016/j.foodchem.2022.135223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Currently, the authenticity and traceability of Tequila are determined in an inspection process carried out by the Tequila Regulatory Council. However, in recent years, the authorities have seized illegal alcoholic products that are marketed as Tequila without being so, making it necessary to strengthen the current methods of detecting counterfeiting and/or adulteration. Therefore, it is important to establish a review of the current analytical techniques that have been proposed to solve this problem. In this review, emphasis is placed on the analysis of the analytical techniques that have been used to consolidate a profile of authenticity and quality in Tequila, thus highlighting new auxiliary analytical techniques to the current verification process, establishing future validation opportunities in terms of international quality control. The use of isotopic ratios stands out as the most robust technique because it establishes the type of sugar source used and the maturation time of the manufacturing process.
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Affiliation(s)
- Walter M Warren-Vega
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales. Universidad Autónoma de Guadalajara. Av. Patria 1201, C.P. 45129, Zapopan, Jalisco, Mexico; Centro de Investigación y Desarrollo Tecnológico en Electroquímica (CIDETEQ), Parque Tecnológico Sanfandila, Pedro Escobedo, Querétaro 76703, Mexico
| | - Rocío Fonseca-Aguiñaga
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales. Universidad Autónoma de Guadalajara. Av. Patria 1201, C.P. 45129, Zapopan, Jalisco, Mexico; Laboratorio de Isotopía, Consejo Regulador del Tequila A. C. Av. Patria 723, Zapopan, Jalisco C.P. 45030, Mexico
| | - Linda V González-Gutiérrez
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica (CIDETEQ), Parque Tecnológico Sanfandila, Pedro Escobedo, Querétaro 76703, Mexico
| | - Luis A Romero-Cano
- Grupo de Investigación en Materiales y Fenómenos de Superficie, Departamento de Ciencias Biotecnológicas y Ambientales. Universidad Autónoma de Guadalajara. Av. Patria 1201, C.P. 45129, Zapopan, Jalisco, Mexico.
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5
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IŞIK S, USMAN A. Applications of New Generation Solvents for Extraction of Herbal Products Prior to Atomic and Molecular Analysis. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2023. [DOI: 10.18596/jotcsa.1178753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
In this review, an up to date and current knowledge of some of the green solvents, which includes supercritical fluids extraction (SFE), switchable polarity solvents (SPS), and natural deep eutectic solvents (NADES) are discussed with more emphasis on the extraction of active components of herbal products. Different scientific articles and books have been researched and reviewed to explain the applications of new generation solvents for extraction of herbal products prior to atomic and molecular analysis from the past until now. Currently, the most of techniques used in processing herbal products involve the use of extraction methods. Therefore, trends in extraction methods focuses mainly on finding reasonable solutions that minimizes the use of toxic solvents and allows the usage of renewable and green solvents from natural products, which ensure high quality and safe extracts. In future, SFE is definitely going to be on the industrial scale due to its numerous applications in the large scale especially for herbal, food, cosmetics and pharmaceutical products etc.
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Affiliation(s)
- Selin IŞIK
- YAKIN DOĞU ÜNİVERSİTESİ, ECZACILIK FAKÜLTESİ
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6
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Valenga MGP, Martins G, Martins TAC, Didek LK, Gevaerd A, Marcolino-Junior LH, Bergamini MF. Biochar: An environmentally friendly platform for construction of a SARS-CoV-2 electrochemical immunosensor. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159797. [PMID: 36334678 DOI: 10.1016/j.scitotenv.2022.159797] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/02/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Waste management is a key feature to ensure sustainable consumption and production patterns, and to combat the impacts of climate change. In this scenario, the production of biochar from different biomasses results in environmental and economic advantages. In this study, biochar was produced from sugarcane bagasse pyrolysis, to immobilize biomolecules, in order to assemble an electrochemical immunosensor to detect antibodies against SARS-CoV-2. For this, screen-printed carbon electrodes (SPCE) were modified with a dispersion of biochar and used to immobilize the receptor-binding-domain (RBD) against virus S-protein, through EDC/NHS crosslinking reaction. Under the best set of experimental conditions, negative and positive serum samples responses distinguished based on a cutoff value of 82.3 %, at a 95 % confidence level. The immunosensor showed selective behavior to antibodies against yellow fever and its performance was stable up to 7 days of storage. Therefore, biochar yielded from sugarcane bagasse is an ecofriendly material that can be used as a platform to immobilize biomolecules for construction of electrochemical biosensors.
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Affiliation(s)
- Marcia Gabriela Pianaro Valenga
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil
| | - Gustavo Martins
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil
| | - Thomas A C Martins
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil
| | - Lorena Klipe Didek
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil
| | - Ava Gevaerd
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil; Hilab, Rua José Altair Possebom, 800, CEP 81270-185 Curitiba, PR, Brazil
| | - Luiz Humberto Marcolino-Junior
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil
| | - Márcio F Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CEP 81531-980 Curitiba, PR, Brazil.
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7
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Yabalak E, Eliuz EAE. Hydrochar synthesis of from waste human hair, incorporation with phenolic extract of Morus alba and evaluation as a natural anti-Staphylococcus aureus agent. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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8
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Saravanan A, Kumar PS. Biochar derived carbonaceous material for various environmental applications: Systematic review. ENVIRONMENTAL RESEARCH 2022; 214:113857. [PMID: 35835170 DOI: 10.1016/j.envres.2022.113857] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/19/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Biochar is the solid material produced from the carbonization of organic feedstock biomass. This material has several unique characteristics such as greater carbon content, good electrical conductivity, high stability and large surface area, which can be applied in several research areas such as generation of power and wastewater treatment. In connection with this, recently, the investigations on biochar significantly focus on the removal of toxic heavy metals since the biochar material is easily available and environmentally friendly. According to an environmental analytical device, biochar-derived carbonaceous material has been additionally applied to the synthesis of an effective, sensitive, and low-cost electrochemical sensor. Biochar with an assessment of electrochemical properties has engaged with different redox reactions in water. In this survey, electrochemical ways of behaving of biochar in light of the electrochemical structures were analytically compiled as well as the impact from biomass sources and manufacturing process including carbonization strategies, pre-treatment/changed techniques. This review emphasizes the various synthesis methods of biochar form organic feedstock, properties and different modulations of biochar for the bioremediation of heavy metals. This review study emphasizes the utilization of biochar as sensing platform and supercapacitor for electrode fabrication in electrochemical biosensor to enhance the remediation of toxic contaminants from water streams and by switching the less ecological traditional materials. Brief information on the techniques employed for packaging biochar as carbon electrode is summarized. Scope in the aspect of environmental concern of biochar, future challenges and prospects are proposed in detail.
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Affiliation(s)
- A Saravanan
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai - 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai - 603110, India.
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Sobhan A, Jia F, Kelso LC, Biswas SK, Muthukumarappan K, Cao C, Wei L, Li Y. A Novel Activated Biochar-Based Immunosensor for Rapid Detection of E. coli O157:H7. BIOSENSORS 2022; 12:908. [PMID: 36291044 PMCID: PMC9599117 DOI: 10.3390/bios12100908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/11/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
E. coli O157:H7, one of the major foodborne pathogens, can cause a significant threat to the safety of foods. The aim of this research is to develop an activated biochar-based immunosensor that can rapidly detect E. coli O157:H7 cells without incubation in pure culture. Biochar was developed from corn stalks using proprietary reactors and then activated using steam-activation treatment. The developed activated biochar presented an enhanced surface area of 830.78 m2/g. To develop the biosensor, the gold electrode of the sensor was first coated with activated biochar and then functionalized with streptavidin as a linker and further immobilized with biotin-labeled anti-E. coli polyclonal antibodies (pAbs). The optimum concentration of activated biochar for sensor development was determined to be 20 mg/mL. Binding of anti-E. coli pAbs with E. coli O157:H7 resulted in a significant increase in impedance amplitude from 3.5 to 8.5 kΩ when compared to an only activated biochar-coated electrode. The developed immunosensor was able to detect E. coli O157:H7 cells with a limit of detection of 4 log CFU/mL without incubation. Successful binding of E. coli O157:H7 onto an activated biochar-based immunosensor was observed on the microelectrode surface in scanning electron microscopy (SEM) images.
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Affiliation(s)
- Abdus Sobhan
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
- Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD 57007, USA
| | - Fei Jia
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | - Lisa Cooney Kelso
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | - Sonatan Kumar Biswas
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
| | | | - Changyong Cao
- Department of Mechanical & Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
- Advanced Platform Technology (APT) Center, Louis Stokes Cleveland VA Medical Center, Cleveland, OH 44106, USA
| | - Lin Wei
- Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD 57007, USA
| | - Yanbin Li
- Department of Biological and Agricultural Engineering, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA or
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10
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Performance comparison of simultaneo us detection Heavy-Metal ions based on carbon materials electrochemical sensor. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Bao C, Lu Y, Liu J, Gao Y, Lu L, Liu S. β-Cyclodextrin/CMK-8-Based Electrochemical Sensor for Sensitive Detection of Cu 2. Molecules 2022; 27:4954. [PMID: 35956904 PMCID: PMC9370383 DOI: 10.3390/molecules27154954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/27/2022] [Accepted: 07/30/2022] [Indexed: 01/27/2023] Open
Abstract
In this work, β-cyclodextrin (β-CD)/mesoporous carbon (CMK-8) nanocomposite was synthesized and used as an electrochemical sensing platform for highly sensitive and selective detection of Cu2+. The morphology and structure of β-CD/CMK-8 were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). In addition, the dates from electrochemical impedance spectroscopy (EIS) and Cyclic voltammetry (CV) demonstrated that the β-CD/CMK-8 possessed a fast electronic transfer rate and large effective surface area. Besides this, the β-CD/CMK-8 composite displayed high enrichment ability toward Cu2+. As a result of these impressive features, the β-CD/CMK-8 modified electrode provided a wide linear response ranging from 0.1 ng·L-1 to 1.0 mg·L-1 with a low detection limit of 0.3 ng·L-1. Furthermore, the repeatability, reproducibility and selectivity of β-CD/CMK-8 towards Cu2+ were commendable. The sensor could be used to detect Cu2+ in real samples. All in all, this work proposes a simple and sensitive method for Cu2+ detection, which provides a reference for the subsequent detection of HMIs.
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Affiliation(s)
| | | | | | | | - Limin Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China
| | - Shuwu Liu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, College of of Chemistry and Materials, Jiangxi Agricultural University, Nanchang 330045, China
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12
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Khan S, Muhammad M, Al-Saidi HM, Hassanian AA, Alharbi W, Alharbi KH. Synthesis, characterization and applications of schiff base chemosensor for determination of Cu2+ ions. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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13
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Silva RPD, Lucho AMS, Pissetti FL. Detection of copper ion in sugarcane spirit using polydimethylsiloxane functionalized with 2-aminothiazole-modified carbon paste electrode. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02264-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Li Y, Xu R, Wang H, Xu W, Tian L, Huang J, Liang C, Zhang Y. Recent Advances of Biochar-Based Electrochemical Sensors and Biosensors. BIOSENSORS 2022; 12:bios12060377. [PMID: 35735525 PMCID: PMC9221240 DOI: 10.3390/bios12060377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 05/17/2023]
Abstract
In the context of accelerating the global realization of carbon peaking and carbon neutralization, biochar produced from biomass feedstock via a pyrolysis process has been more and more focused on by people from various fields. Biochar is a carbon-rich material with good properties that could be used as a carrier, a catalyst, and an absorbent. Such properties have made biochar a good candidate as a base material in the fabrication of electrochemical sensors or biosensors, like carbon nanotube and graphene. However, the study of the applications of biochar in electrochemical sensing technology is just beginning; there are still many challenges to be conquered. In order to better carry out this research, we reviewed almost all of the recent papers published in the past 5 years on biochar-based electrochemical sensors and biosensors. This review is different from the previously published review papers, in which the types of biomass feedstock, the preparation methods, and the characteristics of biochar were mainly discussed. First, the role of biochar in the fabrication of electrochemical sensors and biosensors is summarized. Then, the analytes determined by means of biochar-based electrochemical sensors and biosensors are discussed. Finally, the perspectives and challenges in applying biochar in electrochemical sensors and biosensors are provided.
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Affiliation(s)
| | - Rui Xu
- Correspondence: (R.X.); (Y.Z.)
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Wen Q, Wang S, Liu S, Li J, Chen Y, Yang R, Xu S. Investigation of seawater mineral promoted pyrolysis at low temperature for improving the adsorption capabilities of biochar. CHEMOSPHERE 2022; 292:133447. [PMID: 34968519 DOI: 10.1016/j.chemosphere.2021.133447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 12/01/2021] [Accepted: 12/24/2021] [Indexed: 06/14/2023]
Abstract
Naturally abundant seawater mineral was employed to engineer banana pseudostem and bamboo biochars through pyrolysis at different low temperatures for improving their adsorption capabilities for methylene blue (MB) and tetracycline (TC). The adsorption capabilities were greatly enhanced as the biochars were pyrolyzed at 300 °C with 50/1 (mL/g) dosage of seawater to biomass. For instance, the engineered banana pseudostem biochar exhibited 8.00 and 6.54 times higher adsorption capabilities than the corresponding pristine biochar for MB (447.79 mg/g vs 55.96 mg/g) and TC (100.59 mg/g vs 16.75 mg/g) at 25 °C, respectively. The characterization results indicated that a large number of carboxylates, lactone acid salts, and alkoxides were generated on the engineered biochar and a high cation exchange capacity was gained. The adsorption of MB was mainly attributed to cation exchange complying with hydrogen bonding and electrostatic interaction, whereas the adsorption of TC was realized by hydrogen bonding and complexation.
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Affiliation(s)
- Qin Wen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
| | - Shihan Wang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
| | - Sen Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
| | - Jihui Li
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China; School of Science, Hainan University, Haikou, 570228, PR China; Hainan Provincial Key Lab of Fine Chem, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China.
| | - Yijia Chen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
| | - Run Yang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
| | - Shuying Xu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, School of Chemical Engineering and Technology, Hainan University, Haikou, 570228, PR China
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16
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Alasağ Ö, Alpat Ş, Kilinc Alpat S. Voltammetric Determination of Copper by Biosorption‐based Mesorhizobium opportonistum Modified Microbial Biosensor. ELECTROANAL 2022. [DOI: 10.1002/elan.202200038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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HEO JAESUNG, SUH BOEON, KIM CHEAL. Selective detection of Cu2+ by benzothiazole-based colorimetric chemosensor: a DFT study. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02037-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Kharade SB, Chougale RK, Barache UB, Sanadi KR, Rathod KC, Gaikwad SH, Ling YC, Anuse MA, Kamble GS. Design and optimization of sensitive analytical spectrophotometric method for micro determination of copper(II) from e-waste by using of novel chromogenic extractant. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120502. [PMID: 34742155 DOI: 10.1016/j.saa.2021.120502] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/07/2021] [Accepted: 10/10/2021] [Indexed: 06/13/2023]
Abstract
In this article, a novel spectrophotometric reagent 1-(pyrimidine)-4, 4, 6-trimethyl-1,4-dihydropyrimidine-2-thiol [PTPT] has been synthesized for liquid-liquid extraction and spectrophotometric determination of copper(II). The as-synthesized ligand has been selectively forms stable complex with copper(II) in basic medium (pH 9.0), in presence of mild pyridine the extraction and color stability has found to be synergistically enhanced. The equilibrium time is 10 min for effective extraction of copper(II) from organic phase and absorbance of colored organic complex in carbon tetrachloride is measured spectrophotometrically at λmax 615 nm against reagent blank. The ternary complex of Cu(II)-PTPT-Py having molar ratio 1:2:2 (M:L:Py) showed green colored complex. The main factors influencing the achievement of synergistic extraction; i.e. pH, ligand concentration, type and volume of the dispersive organic solvents, equilibrium time, synergent concentration and foreign ions were investigated. The Beer's law was obeyed in the concentration range 1-20 μg mL-1 of copper(II) and optimum concentration range is evaluated by Ringbom's plot and it is found that 2.5-25 μg mL-1. In presence of pyridine, molar absorptivity and Sandell's sensitivity of copper(II)-PTPT complex is 2.80 × 103 L mol-1 cm-1 and 0.226 μg cm-2, respectively and in absence of pyridine, molar absorptivity and Sandell's sensitivity of copper(II)-PTPT complex is 1.35 × 103 L mol-1 cm-1 and 0.469 μg cm-2, respectively. The stoichiometry of the copper(II)-PTPT-pyridine complex was calculated by slope ratio method, mole ratio method and Job's method of continuous variation and it has been found as 1:2:2. No significant effects of potentially interfering species i.e. cations and anions were observed. The optimized method was applied for the determination of copper(II) in binary, synthetic mixtures and successfully applied for determination of copper(II) from e-waste samples. The standard deviation (R.S.D.) is 0.11% for n = 5 repetition. The reliability of the developed method is confirmed by comparison of experimental results with atomic absorption spectrophotometer.
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Affiliation(s)
- Sangram B Kharade
- Department of Engineering Chemistry, Kolhapur Institute of Technology's College of Engineering (Autonomous), Kolhapur, Affiliated to Shivaji University, Kolhapur 416234, India; Shri Jagdishprasad Jhabarmal Tibrewala University, Vidyanagari, Rajasthan 333001, India
| | - Rajvardhan K Chougale
- Department of Engineering Chemistry, Kolhapur Institute of Technology's College of Engineering (Autonomous), Kolhapur, Affiliated to Shivaji University, Kolhapur 416234, India
| | - Umesh B Barache
- School of Chemical Sciences, Punyashlok Ahilyadevi Holkar Solapur University, Solapur 413225, India
| | - Kallappa R Sanadi
- Department of Chemistry, Doodhsakhar Mahavidhalaya, Bidri, Kolhapur 416208, India
| | - Kishan C Rathod
- Department of Chemistry, The New College, Kolhapur 416012, India
| | | | - Yong-Chein Ling
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Mansing A Anuse
- Department of Chemistry, Shivaji University, Kolhapur 416004, India
| | - Ganesh S Kamble
- Department of Engineering Chemistry, Kolhapur Institute of Technology's College of Engineering (Autonomous), Kolhapur, Affiliated to Shivaji University, Kolhapur 416234, India; Shri Jagdishprasad Jhabarmal Tibrewala University, Vidyanagari, Rajasthan 333001, India.
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19
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Flores-Álvarez JM, Cortés-Arriagada D, Gómez-Sandoval Z, Jayaprakash GK, Ceballos-Magaña SG, Muñiz-Valencia R, Rojas-Montes JC, Pineda-Urbina K. Selective detection of Cu 2+ ions using a mercaptobenzothiazole disulphide modified carbon paste electrode and bismuth as adjuvant: a theoretical and electrochemical study. NEW J CHEM 2022. [DOI: 10.1039/d2nj02156k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bismuth adsorbed on the MBTS-modified surface facilitates the mass and charge transfer necessary for copper's selective sensing.
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Affiliation(s)
- José Manuel Flores-Álvarez
- Universidad de Colima, Facultad de Ciencias Químicas, Carr. Colima-Coquimatlán, km. 9, C. P. 28400 Coquimatlán, Colima, Mexico
| | - Diego Cortés-Arriagada
- Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación (PIDi), Universidad Tecnológica Metropolitana, Ignacio Valdivieso 2409, San Joaquín, Santiago, Chile
| | - Zeferino Gómez-Sandoval
- Universidad de Colima, Facultad de Ciencias Químicas, Carr. Colima-Coquimatlán, km. 9, C. P. 28400 Coquimatlán, Colima, Mexico
| | - Gururaj Kudur Jayaprakash
- Laboratory of Quantum Electrochemistry, School of Advanced Chemical Sciences, Shoolini University, Bajhol, Himachal Pradesh 173229, India
- Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore, Karnataka, India
| | | | - Roberto Muñiz-Valencia
- Universidad de Colima, Facultad de Ciencias Químicas, Carr. Colima-Coquimatlán, km. 9, C. P. 28400 Coquimatlán, Colima, Mexico
- Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O’Higgins, Fabrica 1990, Segundo Piso, Santiago, Chile
| | - Jaime Cristobal Rojas-Montes
- Cátedras CONACyT-TecNM/I.T. Durango, Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, Durango, Dgo, Mexico, C.P. 34080
- Maestría en Sistemas Ambientales, División de Estudios de Posgrado e Investigación, TecNM/I.T. Durango, Felipe Pescador 1830 Ote. Col. Nueva Vizcaya, Durango, Dgo, Mexico, C.P. 34080
| | - Kayim Pineda-Urbina
- Universidad de Colima, Facultad de Ciencias Químicas, Carr. Colima-Coquimatlán, km. 9, C. P. 28400 Coquimatlán, Colima, Mexico
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20
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Yabalak E, Erdogan Eliuz EA. Green synthesis of walnut shell hydrochar, its antimicrobial activity and mechanism on some pathogens as a natural sanitizer. Food Chem 2022; 366:130608. [PMID: 34454799 DOI: 10.1016/j.foodchem.2021.130608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/03/2021] [Accepted: 07/13/2021] [Indexed: 11/16/2022]
Abstract
Hydrochar of waste walnut shells (WSH) was synthesized in the eco-friendly subcritical water medium (SWM) and its potential to fight against Klebsiella pneumoniae (K. pneumoniae), Staphylococcus aureus (S. aureus), Candida albicans (C. albicans) and Candida parapsilosis (C. parapsilosis) was investigated. Minimum Inhibitory Concentration (MIC) values of the WSH were 3.01 g/mL, 2.06 g/mL, 1.95 g/mL, and 3.12 g/mL for K. pneumoniae, S. aureus, C. albicans and C. parapsilosis, respectively. Survival of the pathogens was investigated by 3 min surface disinfection test exposure to WSH. While the highest inhibition was seen for C. parapsilosis (96.67%) on paper surface with 0.3 g/mL of bovine serum albumin (BSA), the lowest inhibition was determined for C. albicans (6.44%) on the plastic glass surface with 3 g/mL of BSA. An increase in protein, DNA, and potassium ion (K+) leakage was observed after microorganisms were incubated with WSH. This study provided an experimental basis for the practical application of WSH as a natural sanitizer agent.
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Affiliation(s)
- Erdal Yabalak
- Mersin University, Faculty of Arts and Science, Department of Chemistry, Çiftlikköy Campus, 33343 Mersin, Turkey; Mersin University, Department of Nanotechnology and Advanced Materials, TR-33343 Mersin, Turkey.
| | - Elif Ayşe Erdogan Eliuz
- Mersin University, Vocational School of Technical Sciences, Department of Food Technology, Çiftlikköy Campus, 33343 Mersin, Turkey.
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21
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de Oliveira Krambeck Franco M, Dias Castro GA, Vilanculo C, Fernandes SA, Suarez WT. A color reaction for the determination of Cu 2+ in distilled beverages employing digital imaging. Anal Chim Acta 2021; 1177:338844. [PMID: 34482892 DOI: 10.1016/j.aca.2021.338844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/01/2022]
Abstract
In this work, we describe for the first time the synthesis of a thiocarbazone for the selective determination of Cu2+ in distilled beverages. The method was based on the complexation reaction of Cu2+ with the thiocarbazone, and the colored product was analyzed using a smartphone application. The thiocarbazone reacts with Cu2+ to form a 1:1 (metal:ligand) complex. The Cu2+ complex was characterized by UV, IR and NMR spectral analyses. The proposed reaction yields a yellow color, and therefore, channel B of the RGB system was used in the analysis. After optimizing the reaction conditions, an analytical curve was obtained to determine Cu2+ concentrations ranging between 0.25 and 6.75 mg L-1; the use of 400 μL sample volumes led to a relative standard deviation (n = 5) of 3.2% and a detection limit of 0.18 mg L-1. Recovery experiments were performed with sugar cane spirits, whiskies and tequilas to evaluate the accuracy of the method, and the recovery obtained ranged from 80.5 to 112.2%.
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Affiliation(s)
| | - Gabriel Abranches Dias Castro
- Grupo de Química Supramolecular e Biomimética (GQSB), Departamento de Química, Centro de Ciências Exatas e Tecnológica, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Castelo Vilanculo
- Departamento de Química, Centro de Ciências Exatas e Tecnológica, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Sergio Antonio Fernandes
- Grupo de Química Supramolecular e Biomimética (GQSB), Departamento de Química, Centro de Ciências Exatas e Tecnológica, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Willian Toito Suarez
- Departamento de Química, Centro de Ciências Exatas e Tecnológica, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil.
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22
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Zhu D, Xu Y, Shi J, Zou X, Zhang W, Huang X, Li Z. Selective enrichment and electrochemical determination of Cu in mushroom using L-Cysteine functionalized Fe3O4@Au nanoparticles. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Flores-Álvarez J, Cortés-Arriagada D, Reyes-Gómez J, Gómez-Sandoval Z, Rojas‑Montes J, Pineda-Urbina K. 2-Mercaptobenzothiazole modified carbon paste electrode as a novel copper sensor: An electrochemical and computational study. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115208] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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24
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Gómez A, Bueno D, Gutiérrez JM. Electronic Eye Based on RGB Analysis for the Identification of Tequilas. BIOSENSORS-BASEL 2021; 11:bios11030068. [PMID: 33801493 PMCID: PMC8000478 DOI: 10.3390/bios11030068] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/21/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022]
Abstract
The present work reports the development of a biologically inspired analytical system known as Electronic Eye (EE), capable of qualitatively discriminating different tequila categories. The reported system is a low-cost and portable instrumentation based on a Raspberry Pi single-board computer and an 8 Megapixel CMOS image sensor, which allow the collection of images of Silver, Aged, and Extra-aged tequila samples. Image processing is performed mimicking the trichromatic theory of color vision using an analysis of Red, Green, and Blue components (RGB) for each image's pixel. Consequently, RGB absorbances of images were evaluated and preprocessed, employing Principal Component Analysis (PCA) to visualize data clustering. The resulting PCA scores were modeled with a Linear Discriminant Analysis (LDA) that accomplished the qualitative classification of tequilas. A Leave-One-Out Cross-Validation (LOOCV) procedure was performed to evaluate classifiers' performance. The proposed system allowed the identification of real tequila samples achieving an overall classification rate of 90.02%, average sensitivity, and specificity of 0.90 and 0.96, respectively, while Cohen's kappa coefficient was 0.87. In this case, the EE has demonstrated a favorable capability to correctly discriminated and classified the different tequila samples according to their categories.
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25
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Antunovic V, Tripkovic T, TomaŠevic B, BaoŠic R, Jelic D, Lolic A. Voltammetric Determination of Lead and Copper in Wine by Modified Glassy Carbon Electrode. ANAL SCI 2021; 37:353-358. [PMID: 33012759 DOI: 10.2116/analsci.20p302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This paper describes the determination of Pb and Cu with a Nafion-modified glassy carbon electrode and MnCo2O4 nanoparticles as working electrode for anodic stripping voltammetry. Pb and Cu were accumulated in HCl/KCl (0.1 mol dm-3) at a potential of -1.4 V (vs. Ag/AgCl electrode) for 480 s, followed by a linear sweep anodic stripping voltammetry (ASV) scan from -1.0 to +0.5 V. Under optimum conditions, the calibration curves were linear in the range of 0.01 - 8 and 0.01 - 5 mg dm-3 for Pb and Cu, respectively. Effect of sample dilution, accumulation time and potential were optimized. A study of interfering substances was performed. A significant increase in current was obtained at the modified electrode in comparison with the bare glassy carbon electrode. The modified electrode was successfully applied for determination of Pb and Cu in wine samples after a simple preparation procedure. Pb and Cu content in wine was used for estimation of the target hazard quotient (THQ) values for minimal and maximal levels of the metals.
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Affiliation(s)
- Vesna Antunovic
- Department of Pharmacy, Faculty of Medicine, University of Banja Luka
| | - Tatjana Tripkovic
- Republic Institute for the Protection of Cultural Monuments of Serbia
| | - Biljana TomaŠevic
- Department of Analytical Chemistry, University of Belgrade-Faculty of Chemistry
| | - Rada BaoŠic
- Department of Analytical Chemistry, University of Belgrade-Faculty of Chemistry
| | - Dijana Jelic
- Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Banja Luka
| | - Aleksandar Lolic
- Department of Analytical Chemistry, University of Belgrade-Faculty of Chemistry
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26
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Onça LO, de Souza JCP, Dos Santos IGN, Santos EDS, Soares SM, Diniz PHGD. A new highly selective colorimetric Schiff base chemosensor for determining the copper content in artisanal cachaças. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118783. [PMID: 32818693 DOI: 10.1016/j.saa.2020.118783] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 07/18/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
This work demonstrated the feasibility of applying the Schiff base 5-bromo-2-salicyl-beta-alanine as a colorimetric chemosensor for the spectrophotometric quantification of the copper content in artisanal cachaças. For this, the experimental conditions were optimized to obtain an efficient, sensitive, reversible, and highly selective chemosensor to Cu2+ ions. The complex stoichiometry was 1:1, with a formation constant of 5.82 × 102 L mol-1 and molar absorptivity of 5.82 × 103 mol L-1 cm-1. Then, a spectrophotometric analytical method was developed and validated according to the Brazilian legislation. The linearity of the analytical curve was demonstrated by ANOVA, at a confidence level of 95%. The limits of detection and quantification were 0.0659 and 0.200 mg L-1, respectively. The coefficients of variation for both the intra- and inter-day precisions were lower than 3.83%, and the accuracy presented a mean recovery of 100.55 ± 2.87%. The absence of a matrix effect was confirmed by the standard addition method, and the copper content in three artisanal cachaças from different geographical origins was estimated as lower than 2.93 mg L-1. This result was in accordance with the Brazilian legislation but reinforces the need to carry out stricter quality control to achieve exportation standards. Therefore, the proposed method can be considered a simple, selective, linear, precise, and accurate tool that involves only a simple complexation reaction through the addition of the chemosensor solution in a buffered medium. As a consequence, the simplicity, practicality, rapidity, and low cost of synthesis of the proposed Schiff base chemosensor are highlighted.
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Affiliation(s)
- Larissa Oliveira Onça
- Programa de Pós-Graduação em Química Pura e Aplicada (POSQUIPA), Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil
| | - Joseana Caroline Palmeira de Souza
- Undergraduate Course of Chemistry, Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil
| | - Izabela Gessyane Nogueira Dos Santos
- Undergraduate Course of Chemistry, Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil
| | - Emerson de Sousa Santos
- Undergraduate Course of Chemistry, Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil
| | - Sérgio Macêdo Soares
- Programa de Pós-Graduação em Química Pura e Aplicada (POSQUIPA), Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil
| | - Paulo Henrique Gonçalves Dias Diniz
- Programa de Pós-Graduação em Química Pura e Aplicada (POSQUIPA), Centro das Ciências Exatas e das Tecnologias (CCET), Universidade Federal do Oeste da Bahia (UFOB), 47.810-059 Barreiras, BA, Brazil.
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27
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Paper-based analytical device for colorimetric detection of Cu2+ in Brazilian sugarcane spirits by digital image treatment. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105463] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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Spanu D, Binda G, Dossi C, Monticelli D. Biochar as an alternative sustainable platform for sensing applications: A review. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105506] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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29
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Extraction of tetracycline in food samples using biochar microspheres prepared by a Pickering emulsion method. Food Chem 2020; 329:127162. [DOI: 10.1016/j.foodchem.2020.127162] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 05/10/2020] [Accepted: 05/25/2020] [Indexed: 11/18/2022]
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30
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Chen X, Lu K, Lin D, Li Y, Yin S, Zhang Z, Tang M, Chen G. Hierarchical Porous Tubular Biochar Based Sensor for Detection of Trace Lead (II). ELECTROANAL 2020. [DOI: 10.1002/elan.202060148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xue Chen
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
| | - Kunchao Lu
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
| | - Donghai Lin
- School of Environmental and Materials Engineering College of Engineering Shanghai Polytechnic University Shanghai 201209 China
- School of Food Science and Engineering Foshan University Foshan 528000 China (D. Lin)
| | - Yan Li
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
| | - Shiyu Yin
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
| | - Zhiyi Zhang
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
| | - Meihua Tang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University Nanjing 210009 China
| | - Guosong Chen
- College of Chemistry and Molecular Engineering Nanjing Tech University Nanjing 210009 China
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31
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Bindewald EH, Angelo E, Kleinert E, Bergamini MF, Marcolino-Junior LH. Mercury isles in titanate nanotubes: a new strategy for using mercury electrodes in analytical application. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02691-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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32
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Electrochemical immunosensor with Cu(I)/Cu(II)-chitosan-graphene nanocomposite-based signal amplification for the detection of newcastle disease virus. Sci Rep 2020; 10:13869. [PMID: 32807824 PMCID: PMC7431565 DOI: 10.1038/s41598-020-70877-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/12/2020] [Indexed: 12/20/2022] Open
Abstract
An electrochemical immunoassay for the ultrasensitive detection of Newcastle disease virus (NDV) was developed using graphene and chitosan-conjugated Cu(I)/Cu(II) (Cu(I)/Cu(II)-Chi-Gra) for signal amplification. Graphene (Gra) was used for both the conjugation of an anti-Newcastle disease virus monoclonal antibody (MAb/NDV) and the immobilization of anti-Newcastle disease virus polyclonal antibodies (PAb/NDV). Cu(I)/Cu(II) was selected as an electroactive probe, immobilized on a chitosan-graphene (Chi-Gra) hybrid material, and detected by differential pulse voltammetry (DPV) after a sandwich-type immune response. Because Gra had a large surface area, many antibodies were loaded onto the electrochemical immunosensor to effectively increase the electrical signal. Additionally, the introduction of Gra significantly increased the loading amount of electroactive probes (Cu(I)/Cu(II)), and the electrical signal was further amplified. Cu(I)/Cu(II) and Cu(I)/Cu(II)-Chi-Gra were compared in detail to characterize the signal amplification ability of this platform. The results showed that this immunosensor exhibited excellent analytical performance in the detection of NDV in the concentration range of 100.13 to 105.13 EID50/0.1 mL, and it had a detection limit of 100.68 EID50/0.1 mL, which was calculated based on a signal-to-noise (S/N) ratio of 3. The resulting immunosensor also exhibited high sensitivity, good reproducibility and acceptable stability.
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Sustainable materials for the design of forefront printed (bio)sensors applied in agrifood sector. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115909] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ferreira RJ, Rosa TR, Ribeiro J, Barthus RC. Simultaneous metal determination in artisanal cachaça by using voltammetry and multivariate calibration. Food Chem 2020; 314:126126. [PMID: 31951887 DOI: 10.1016/j.foodchem.2019.126126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 12/13/2019] [Accepted: 12/24/2019] [Indexed: 01/22/2023]
Abstract
In this study, square wave anodic stripping voltammetry using two different types of electrodes (carbon nanotube electrode and graphite electrode) was combined with chemometric methods - partial least squares (PLS) and artificial neural networks (ANN) for determining copper, zinc, cadmium and lead in cachaça. The objectives were comparison of methods developed and the verification of the quality of artisanal cachaças in terms of metal content. For the development of the methodology, inductively coupled plasma optical emission spectrometry (ICP OES) was used as reference technique. The performance of multivariate models obtained was evaluated by the coefficient of determination (R2) and root mean square error of prediction (RMSEP). F test was utilized for comparing methods at confidence level of 95%. Better results were observed by using carbon nanotube electrode regardless of the multivariate method proposed. The methodology is simple, fast, and inexpensive and it can be used in quality control laboratories.
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Affiliation(s)
- Romário Junior Ferreira
- Departamento de Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - Thalles Ramon Rosa
- Instituto Federal de Educação, Ciência e Tecnologia do Espírito Santo, Aracruz, ES, Brazil
| | - Josimar Ribeiro
- Departamento de Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil
| | - Rosângela Cristina Barthus
- Departamento de Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Vitória, ES, Brazil.
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Polyurethane-doped platinum nanoparticles modified carbon paste electrode for the sensitive and selective voltammetric determination of free copper ions in biological samples. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104765] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nawaz R, Rasheed T, Iqbal T, Bilal M, Majeed S. Development of 2,4-dinitrophenylhydrazine-modified carbon paste electrode for highly sensitive electrochemical sensing of amino acids. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02580-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Electrochemical impedance biosensor array based on DNAzyme-functionalized single-walled carbon nanotubes using Gaussian process regression for Cu(II) and Hg(II) determination. Mikrochim Acta 2020; 187:207. [DOI: 10.1007/s00604-020-4202-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 02/28/2020] [Indexed: 12/12/2022]
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38
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Andrade RA, Cunha FA, Andrade SI, Junior PL, Navarro LA, Lyra WS, Pessoa AG, Lima RA, Araujo MCU. A digital capture movie-based robotized Flow-batch luminometer for in-line magnetic nanoparticle solid phase extraction and chemiluminescent measurement. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104387] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Vafakish B, Wilson LD. Cu(II) Ion Adsorption by Aniline Grafted Chitosan and Its Responsive Fluorescence Properties. Molecules 2020; 25:molecules25051052. [PMID: 32110994 PMCID: PMC7179099 DOI: 10.3390/molecules25051052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 12/03/2022] Open
Abstract
The detection and removal of heavy metal species in aquatic environments is of continued interest to address ongoing efforts in water security. This study was focused on the preparation and characterization of aniline grafted chitosan (CS-Ac-An), and evaluation of its adsorption properties with Cu(II) under variable conditions. Materials characterization provides support for the grafting of aniline onto chitosan, where the kinetic and thermodynamic adsorption properties reveal a notably greater uptake (>20-fold) of Cu(II) relative to chitosan, where the adsorption capacity (Qm) of CS-Ac-An was 106.6 mg/g. Adsorbent regeneration was demonstrated over multiple adsorption-desorption cycles with good uptake efficiency. CS-Ac-An has a strong fluorescence emission that undergoes prominent quenching at part per billion levels in aqueous solution. The quenching process displays a linear response over variable Cu(II) concentration (0.05–5 mM) that affords reliable detection of low level Cu(II) levels by an in situ “turn-off” process. The tweezer-like chelation properties of CS-Ac-An with Cu(II) was characterized by complementary spectroscopic methods: IR, NMR, X-ray photoelectron (XPS), and scanning electron microscopy (SEM). The role of synergistic effects are inferred among two types of active adsorption sites: electron rich arene rings and amine groups of chitosan with Cu(II) species to afford a tweezer-like binding modality.
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Saldaña J, Gallay P, Gutierrez S, Eguílaz M, Rivas G. Multi-walled carbon nanotubes functionalized with bathocuproinedisulfonic acid: analytical applications for the quantification of Cu(II). Anal Bioanal Chem 2020; 412:5089-5096. [PMID: 32009193 DOI: 10.1007/s00216-020-02396-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/27/2019] [Accepted: 01/07/2020] [Indexed: 02/08/2023]
Abstract
This work reports the successful non-covalent functionalization of multi-walled carbon nanotubes (MWCNTs) with bathocuproinedisulfonic acid (BCS) and the analytical application of the resulting dispersion (MWCNTs-BCS) to develop an electrochemical sensor for Cu(II) quantification. The sensor was obtained by casting glassy carbon electrodes (GCEs) with MWCNTs-BCS. The sensing mechanism was based on the open circuit preconcentration of Cu(II) at the electrode surface by complexation of Cu(II) through the phenanthroline ring nitrogen of the BCS that supports the MWCNTs, the reduction of the preconcentrated Cu(II), and final differential pulse voltammetry-anodic stripping in 0.020 M acetate buffer, pH 5.00. The sensitivity of the sensor was (2.73 ± 0.08) μA μM-1, with a linear range between 5.0 × 10-7 M and 6.0 × 10-6 M, a detection limit of 0.15 μM (9.5 μg L-1), and reproducibility of 6.2% using the same dispersion and 7.1% using three different MWCNTs-BCS dispersions. The quantification of Cu(II) was highly selective even in the presence of As3+, Cr3+, Cd2+, Ni2+, Pb2+, Co2+, Zn2+, Fe2+, Hg2+, Rh, Ir, and Ru. The proposed sensor was successfully used for quantifying Cu(II) in tap water. Graphical abstract.
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Affiliation(s)
- Jorge Saldaña
- INFIQC, Departamento de Físicoquimica, Facultad de Ciencias Químicas, Ciudad Universitaria, 5000, Córdoba, Argentina.,Departamento de Química, Universidad de Guanajuato, 36040, Guanajuato, Mexico
| | - Pablo Gallay
- INFIQC, Departamento de Físicoquimica, Facultad de Ciencias Químicas, Ciudad Universitaria, 5000, Córdoba, Argentina
| | - Silvia Gutierrez
- Departamento de Química, Universidad de Guanajuato, 36040, Guanajuato, Mexico.
| | - Marcos Eguílaz
- INFIQC, Departamento de Físicoquimica, Facultad de Ciencias Químicas, Ciudad Universitaria, 5000, Córdoba, Argentina.
| | - Gustavo Rivas
- INFIQC, Departamento de Físicoquimica, Facultad de Ciencias Químicas, Ciudad Universitaria, 5000, Córdoba, Argentina.
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A Review of Non-Soil Biochar Applications. MATERIALS 2020; 13:ma13020261. [PMID: 31936099 PMCID: PMC7013903 DOI: 10.3390/ma13020261] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 02/07/2023]
Abstract
Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.
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Ali HRH, Hassan AI, Hassan YF, El-Wekil MM. Development of dual function polyamine-functionalized carbon dots derived from one step green synthesis for quantitation of Cu 2+ and S 2- ions in complicated matrices with high selectivity. Anal Bioanal Chem 2020; 412:1353-1363. [PMID: 31900540 DOI: 10.1007/s00216-019-02362-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 12/11/2019] [Accepted: 12/17/2019] [Indexed: 11/29/2022]
Abstract
The study of biologically important Cu2+ and S2- ions has drawn great attention in the recent years since an abnormal level of these ions is an indication for health impairment. Therefore, a reliable strategy for effective fluorescence determination of Cu2+ and S2- ions was developed. Simply, the method based on economical plant-dependent thermolysis procedure for efficient green synthesis of water dispersible luminescent polyamine-based carbon dots (PA@C-dots) utilizes Vitis vinifera juice as precursor with a high quantum yield (32.1%) and good photo-stability. The fluorescent PA@C-dots were characterized by different spectroscopical, physical, and structural techniques. Furthermore, the synthesized PA@C-dots can be used as an efficient dual functional fluorescent probe for the sensitive and selective estimation of Cu2+ and S2- ions. The incorporation of Cu2+ ions and their adsorption on the surface of PA@C-dot skeleton leads to the respectable fluorescence quenching of C-dots (turn-off mode). The Cu2+-PA@C-dot was found to be sensitive to S2- ions. The addition of S2- recovers the fluorescence (turn-on mode) of Cu2+-PA@C-dots, thanks to its capacity for withdrawing Cu2+ from the shell of PA@C-dots. Fluorescence quenching in the range of 0.07-60 μM Cu2+ was obtained with LOD and LOQ of 0.02 and 0.066 μM, respectively. Sulfide detection provides linearity in the range of 0.8 to 95 μM with LOD and LOQ of 0.24 and 0.79 μM, respectively. The optimal excitation and emission wavelengths for all experiments are 435 nm and 498 nm, respectively. Experiment results elucidate that the proposed method is suitable for Cu2+and S2- ion detection in environmental water samples. Graphical abstract Green synthesis of polyamine-functionalized nanoprobe by thermolysis method from plant source as bifunctional sensing platform for determination of Cu2+ and S2- in environmental water samples.
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Affiliation(s)
- Hassan Refat H Ali
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
| | - Ahmed I Hassan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al Azhar University, Assiut, 71526, Egypt
| | - Yasser F Hassan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al Azhar University, Assiut, 71526, Egypt
| | - Mohamed M El-Wekil
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
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Rashmi B, Harlapur SF, Avinash B, Ravikumar C, Nagaswarupa H, Anil Kumar M, Gurushantha K, Santosh M. Facile green synthesis of silver oxide nanoparticles and their electrochemical, photocatalytic and biological studies. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107580] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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44
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An ion-imprinted sensor based on chitosan-graphene oxide composite polymer modified glassy carbon electrode for environmental sensing application. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.05.136] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Kong FY, Li RF, Yao L, Zou HY, Li HY, Wang ZX, Wang W. An OFF-ON detection method for copper(ii) ions using a AgAu-NG nanocomposite modified electrode. Analyst 2019; 144:3967-3971. [PMID: 31140474 DOI: 10.1039/c9an00535h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An OFF-ON detection method for Cu2+ was developed at the AgAu bimetallic nanoparticle decorated nitrogen-doped graphene (AgAu-NG) nanocomposite modified electrode. The measurement was based on the copper-catalyzed oxidation of cysteamine (Cys) to regulate the oxidation peak current of Ag. In the absence of Cu2+, Cys can bind to the surface of AgAu-NG via the Ag-S or Au-S bond, thus leading to an obvious decrease of the oxidation peak current of Ag. However, in the presence of Cu2+, Cu2+ can greatly catalyze the oxidation of Cys by dissolved O2 to form cystamine, which would fall off the surface of AgAu-NG nanocomposites, leading to the partial recovery of the oxidation peak current of Ag. With the increase in the concentration of Cu2+, the oxidation peak current of Ag in the presence of Cys increases accordingly. So, the concentration of Cu2+ can be measured. By using the optimum conditions, this method can detect Cu2+ concentrations down to 0.3 nM (S/N = 3) with a linear response range of 1 nM-1 mM. Furthermore, this method was applied to determine Cu2+ concentrations in river water samples and showed excellent analytical performance.
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Affiliation(s)
- Fen-Ying Kong
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
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46
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Martins G, Gogola JL, Caetano FR, Kalinke C, Jorge TR, Santos CND, Bergamini MF, Marcolino-Junior LH. Quick electrochemical immunoassay for hantavirus detection based on biochar platform. Talanta 2019; 204:163-171. [PMID: 31357278 DOI: 10.1016/j.talanta.2019.05.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 11/30/2022]
Abstract
This work describes the first method using biochar (BC) as carbonaceous platform for immunoassay application. BC is a highly functionalized material obtained through biomass pyrolysis under controlled conditions. Due to the highly functionalized surface, covalent binding between BC and biomolecules can be performed by EDC/NHS conjugation. The application of the modified electrode was done with Hantavirus, that are etiologic agents mainly transmitted by wild rodents. Among its pathologies Hantavirus Cardiopulmonary Syndrome (HCPS) arises at Americas, caused by Hantavirus Araucária and reaches 40% lethality. The diagnostic is based on the presence of specific hantavirus nucleoprotein (Np), under viremic condition or IgG2b antibodies (Ab), during first symptoms. The results presented a device sensitivity of 5.28 μA dec-1 and a LOD of 0.14 ng mL-1 to the Np detection, ranging from 5.0 ng mL-1 to 1.0 μg mL-1, the Ab detection works as qualitative type sensor above 200 ng mL-1. Both sensors were evaluated its selectivity and serum samples; selectivity against Gumboro disease, VP2 protein, and antibody IgG2a against Yellow fever disease (YF), respectively. So, the devices here proposed are promising tool suitable for both rodent and human hantavirus clinical surveys.
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Affiliation(s)
- Gustavo Martins
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Jeferson L Gogola
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Fabio R Caetano
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Cristiane Kalinke
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Taíssa R Jorge
- Instituto Carlos Chagas, FIOCRUZ, CEP 81310-020, Curitiba, PR, Brazil
| | | | - Márcio F Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil
| | - Luiz H Marcolino-Junior
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal do Paraná (UFPR), CP 19032, CEP, 81531-990 Curitiba, PR, Brazil.
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Ding L, Zhao Z, Li D, Wang X, Chen J. An "off-on" fluorescent sensor for copper ion using graphene quantum dots based on oxidation of l-cysteine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 214:320-325. [PMID: 30798213 DOI: 10.1016/j.saa.2019.02.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/25/2018] [Accepted: 02/16/2019] [Indexed: 06/09/2023]
Abstract
A simple and highly efficient "off-on" fluorescent sensor based on grapheme quantum dots (GQDs) for Cu2+ was developed. In this sensing platform, the fluorescence of GQDs was quenched in the presence of 2,4-dinitrophenylcysteine (DNPC), which is the reaction product of 1-chloro-2,4-dinitrobenzene (CDNB) and l-cysteine, owing to the spectral overlap between the absorption of DNPC and the excitation of GQDs. In the presence of Cu2+, l-cysteine was catalytically oxidized to l-cystine by O2, resulting in the reduction of DNPC. Thus, the fluorescence of GQDs was recovery. Based on this, the fluorescent detection of Cu2+ could be achieved. The proposed sensing strategy offered a selective identification of Cu2+ with a detection limit of 4.5 nM. Additionally, the practical application of this assay for Cu2+ determination in real water samples was also demonstrated.
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Affiliation(s)
- Longhua Ding
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, PR China.
| | - Zhongyao Zhao
- Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Dongjun Li
- Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Xue Wang
- Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Jialin Chen
- Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
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Nonenzymatic sensor for determination of glucose in blood plasma based on nickel oxyhydroxide in a microfluidic system of cotton thread. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Sorption of Cr(III) from aqueous media via naturally functionalized microporous biochar: Mechanistic study. Microchem J 2019. [DOI: 10.1016/j.microc.2018.09.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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50
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Salinas G, Ibanez JG, Vásquez-Medrano R, Frontana-Uribe BA. Analysis of Cu in Mezcal Commercial Samples using Square Wave Anodic Stripping Voltammetry. J ELECTROCHEM SCI TE 2018. [DOI: 10.33961/jecst.2018.9.4.276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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