1
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Panditharatne SP, Imali DY, Perera ECJ, Perera LHR, Hettiarachchi GHCM, Kaumal MN. Anodized CuO-based reusable non-enzymatic glucose sensor as an alternative method for the analysis of pharmaceutical glucose infusions: a cyclic voltammetric approach. ANAL SCI 2024; 40:1475-1487. [PMID: 38727930 DOI: 10.1007/s44211-024-00585-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 04/22/2024] [Indexed: 07/26/2024]
Abstract
Analyzing pharmaceutical products is a quality control requirement in a production facility. This study presents a CuO electrode-based reusable non-enzymatic sensor as an alternative method for rapid analysis of glucose levels in glucose infusions. CuO is extensively employed as an electrode material in non-enzymatic glucose sensors. Conventionally, these electrodes are fabricated using chemical synthesis of CuO followed by immobilization to the electrode substrate. In contrast, here, Cu metal was mechanically modified to create a grooved surface, followed by electrochemical anodization and subsequent annealing process to grow a seamless CuO layer in situ with enhanced catalytic activity. The morphology of the electrodes was characterized using scanning electron microscopy (SEM) and X-ray diffractometry (XRD). The direct electrocatalytic activity of the developed CuO-modified electrode towards glucose oxidation in alkaline media was investigated by cyclic voltammetry in detail. The CuO-modified electrode commenced the oxidation process around 0.10 V vs. Ag pseudo-reference electrode, demonstrating a significant reduction in the overvoltage for glucose oxidation compared to the bare Cu electrode. The sensor is capable of detecting glucose at low oxidation potentials such as 0.2 V with a sensitivity value of 0.37 µA ppm-1, a wide linear range (80-2300 ppm), limit of quantification (LOQ) of 1 ppm, greater repeatability, 1% precision, 3% bias, a short response time (80 s), good reproducibility and excellent reusability (196 consecutive attempts). The enhanced performance and cost-effectiveness make this sensor a promising alternative method for product analysis in glucose injection solutions.
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Affiliation(s)
| | - D Yureka Imali
- Department of Chemistry, University of Colombo, Colombo 03, Sri Lanka
| | - E Chavin J Perera
- Department of Chemistry, University of Colombo, Colombo 03, Sri Lanka
| | - L Hasini R Perera
- Department of Chemistry, University of Colombo, Colombo 03, Sri Lanka.
| | | | - M N Kaumal
- Department of Chemistry, University of Colombo, Colombo 03, Sri Lanka
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2
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Ochea RAG, Benzaquén TB, Encina ER. A partial oxidation-based approach to the synthesis of gold-magnetite hybrid nanostructures. Sci Rep 2024; 14:7352. [PMID: 38548867 PMCID: PMC10978920 DOI: 10.1038/s41598-024-58145-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/26/2024] [Indexed: 04/01/2024] Open
Abstract
Hybrid nanostructures composed of gold and magnetite are of singular interest because they allow the integration of plasmonic and magnetic properties in a single object. Due to this feature, their application has been proposed to perform various functions. The methods usually employed to prepare these particular kinds of nanostructures follow organic phase routes, whereas synthetic methodologies that employ more sustainable solvents have been much less explored. In this work, an environmentally friendly approach for the synthesis of gold-magnetite hybrid nanostructures in aqueous media is proposed. This approach relies on the partial oxidation of the Fe(II) precursor using hydrogen peroxide as the oxidizing agent in the presence of preformed gold nanoparticles dispersed in the reaction medium. The methodology used led to the formation of magnetite nanoparticles with a good stoichiometry and a median size of 30 nm. Furthermore, in the presence of gold nanoparticles in the reaction medium, the formation of gold-magnetite hybrid nanostructures is produced as a consequence of the heterogeneous nucleation of the iron oxide phase on the surface of the gold nanoparticles that act as seeds. The approach reported broadens the possibility of synthesizing hybrid nanostructures in aqueous media with integrated plasmonic and magnetic properties.
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Affiliation(s)
- Rocío A González Ochea
- INFIQC-UNC-CONICET, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina
| | - Tamara B Benzaquén
- CITeQ (UTN-CONICET), Centro de Investigación y Tecnología Química, Maestro Marcelo López Esq. Cruz Roja Argentina, (5016ZAA), Córdoba, Argentina
| | - Ezequiel R Encina
- INFIQC-UNC-CONICET, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina.
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3
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Arunkumar P, Gayathri S, Rajasekar A, Senthil Kumar S, Kumar Kamaraj S, Hun Han J. Lewis acidic Fe 3+-driven catalytic active Ni 3+ formation in Fe-free metal-organic framework for enhanced electrochemical glucose sensing. J Colloid Interface Sci 2023; 656:424-439. [PMID: 38000254 DOI: 10.1016/j.jcis.2023.11.063] [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: 08/02/2023] [Revised: 10/17/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023]
Abstract
Manipulating metal valence states and porosity in the metal-organic framework (MOF) by alloying has been a unique tool for creating high-valent metal sites and pore environments in a structure that are inaccessible by other methods, favorable for accelerating the catalytic activity towards sensing applications. Herein, we report Fe3+-driven formation of catalytic active Ni3+ species in the amine-crafted benzene-dicarboxylate (BDC-NH2)-based MOF as a high-performance electrocatalyst for glucose sensing. This work took the benefit of different bonding stability between BDC-NH2 ligand, and Fe3+ and Ni2+ metal precursor ions in the heterometallic NixFe(1-x)-BDC-NH2 MOF. The FeCl3 that interacts weakly with ligand, oxidizes the Ni2+ precursor to Ni3+-based MOF owing to its Lewis acidic behavior and was subsequently removed from the structure supported by Ni atoms, during solvothermal synthesis. This enables to create mesopores within a highly stable Ni-MOF structure with optimal feed composition of Ni0.7Fe0.3-BDC-NH2. The Ni3+-based Ni0.7Fe0.3-BDC-NH2 demonstrates superior catalytic properties towards glucose sensing with a high sensitivity of 13,435 µA mM-1 cm-2 compared to the parent Ni2+-based Ni-BDC-NH2 (10897 μA mM-1cm-2), along with low detection limit (0.9 μM), short response time (≤5 s), excellent selectivity, and higher stability. This presented approach for fabricating high-valent nickel species, with a controlled quantity of Fe3+ integrated into the structure allowing pore engineering of MOFs, opens new avenues for designing high-performing MOF catalysts with porous framework for sensing applications.
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Affiliation(s)
- Paulraj Arunkumar
- School of Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 61186, Republic of Korea
| | - Sampath Gayathri
- School of Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 61186, Republic of Korea
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Serkkadu, Vellore, Tamil Nadu 632115, India
| | - Shanmugam Senthil Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India; Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamil Nadu, India
| | - Sathish Kumar Kamaraj
- Instituto Politécnico Nacional (IPN)-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada (CICATA-Altamira), Carretera Tampico-Puerto Industrial Altamira Km14.5, C. Manzano, Industrial Altamira, 89600 Altamira, Tamps, México
| | - Jong Hun Han
- School of Chemical Engineering, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 61186, Republic of Korea.
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4
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Qi C, Zhang C, Yang Z. Engineering Co3O4 with Co defects for highly sensitive nonenzymatic detection of glucose. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Gopal TS, Alzahrani KE, Assaifan AK, Albrithen H, Alodhayb A, Muthuramamoorthy M, Pandiaraj S, Grace AN. Reduced graphene oxide supported MXene based metal oxide ternary composite electrodes for non-enzymatic glucose sensor applications. Sci Rep 2022; 12:20583. [PMID: 36446882 PMCID: PMC9708649 DOI: 10.1038/s41598-022-24700-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
Diagnosis and monitoring of glucose level in human blood has become a prime necessity to avoid health risk and to cater this, a sensor's performance with wide linearity range and high sensitivity is required. This work reports the use of ternary composite viz. MG-Cu2O (rGO supported MXene sheet with Cu2O) for non-enzymatic sensing of glucose. It has been prepared by co-precipitation method and characterized with X-ray powder diffraction, Ultraviolet-visible absorption spectroscopy (UV-Vis), Raman spectroscopy, Field emission scanning electron microscopy, High resolution transmission electron microscopy and Selected area diffraction. These analyses show a cubic structure with spherical shaped Cu2O grown on the MG sheet. Further, the electrocatalytic activity was carried out with MG-Cu2O sensing element by cyclic voltammetry and chronoamperometry technique and compared with M-Cu2O (MXene with Cu2O) composite without graphene oxide. Of these, MG-Cu2O composite was having the high defect density with lower crystalline size of Cu2O, which might enhance the conductivity thereby increasing the electrocatalytic activity towards the oxidation of glucose as compared to M-Cu2O. The prepared MG-Cu2O composite shows a sensitivity of 126.6 µAmM-1 cm-2 with a wide linear range of 0.01to 30 mM, good selectivity, good stability over 30 days and shows a low Relative Standard Deviation (RSD) of 1.7% value towards the sensing of glucose level in human serum. Thus, the aforementioned finding indicates that the prepared sensing electrode is a well suitable candidate for the sensing of glucose level for real time applications.
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Affiliation(s)
- Tamil Selvi Gopal
- grid.412813.d0000 0001 0687 4946Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu India
| | - Khalid E. Alzahrani
- grid.56302.320000 0004 1773 5396Present Address: Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia ,grid.56302.320000 0004 1773 5396Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Abdulaziz K. Assaifan
- grid.56302.320000 0004 1773 5396Present Address: Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Hamad Albrithen
- grid.56302.320000 0004 1773 5396Present Address: Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia ,grid.56302.320000 0004 1773 5396Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Abdullah Alodhayb
- grid.56302.320000 0004 1773 5396Present Address: Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia ,grid.56302.320000 0004 1773 5396Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Muthumareeswaran Muthuramamoorthy
- grid.56302.320000 0004 1773 5396Present Address: Biological and Environmental Sensing Research Unit, King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Saravanan Pandiaraj
- grid.56302.320000 0004 1773 5396Department of Self-Development Skills, CFY Deanship, King Saud University, Riyadh, Saudi Arabia
| | - Andrews Nirmala Grace
- grid.412813.d0000 0001 0687 4946Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu India
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6
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Osman AI, Elgarahy AM, Mehta N, Al-Muhtaseb AH, Al-Fatesh AS, Rooney DW. Facile Synthesis and Life Cycle Assessment of Highly Active Magnetic Sorbent Composite Derived from Mixed Plastic and Biomass Waste for Water Remediation. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:12433-12447. [PMID: 36161095 PMCID: PMC9490754 DOI: 10.1021/acssuschemeng.2c04095] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/24/2022] [Indexed: 05/09/2023]
Abstract
Plastic and biomass waste pose a serious environmental risk; thus, herein, we mixed biomass waste with plastic bottle waste (PET) to produce char composite materials for producing a magnetic char composite for better separation when used in water treatment applications. This study also calculated the life cycle environmental impacts of the preparation of adsorbent material for 11 different indicator categories. For 1 functional unit (1 kg of pomace leaves as feedstock), abiotic depletion of fossil fuels and global warming potential were quantified as 7.17 MJ and 0.63 kg CO2 equiv for production of magnetic char composite materials. The magnetic char composite material (MPBC) was then used to remove crystal violet dye from its aqueous solution under various operational parameters. The kinetics and isotherm statistical theories showed that the sorption of CV dye onto MPBC was governed by pseudo-second-order, and Langmuir models, respectively. The quantitative assessment of sorption capacity clarifies that the produced MPBC exhibited an admirable ability of 256.41 mg g-1. Meanwhile, the recyclability of 92.4% of MPBC was demonstrated after 5 adsorption/desorption cycles. Findings from this study will inspire more sustainable and cost-effective production of magnetic sorbents, including those derived from combined plastic and biomass waste streams.
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Affiliation(s)
- Ahmed I. Osman
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, Belfast BT9 5AG, Northern Ireland, United Kingdom
- Ahmed
I. Osman. . Fax: +44 2890 97 4687. Tel.: +44 2890 97 4412
| | - Ahmed M. Elgarahy
- Environmental
Science Department, Faculty of Science, Port Said University, Port Said 42526, Egypt
- Egyptian
Propylene and Polypropylene Company (EPPC), Port-Said 42526, Egypt
| | - Neha Mehta
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Ala’a H. Al-Muhtaseb
- Department
of Petroleum and Chemical Engineering, College of Engineering, Sultan Qaboos University, Muscat 123, Oman
| | - Ahmed S. Al-Fatesh
- Chemical
Engineering Department, College of Engineering,
King Saud University, Riyadh 11421, Saudi Arabia
| | - David W. Rooney
- School
of Chemistry and Chemical Engineering, Queen’s
University Belfast, Belfast BT9 5AG, Northern Ireland, United Kingdom
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7
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He Y, Wang P, Chen X, Li Y, Wei J, Cai G, Aoyagi K, Wang W. Facile preparation of Fe 3O 4@Pt nanoparticles as peroxidase mimics for sensitive glucose detection by a paper-based colorimetric assay. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220484. [PMID: 36177202 PMCID: PMC9515637 DOI: 10.1098/rsos.220484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 08/26/2022] [Indexed: 06/16/2023]
Abstract
A simple strategy to rapidly detect glucose was developed by utilizing core (Fe3O4)-shell (Pt) magnetic nanoparticles (Fe3O4@Pt NPs) as a nanoenzyme and a paper-based colorimetric sensor. In the presence of H2O2, Fe3O4@Pt NPs catalyze the redox reaction of 3,3',5,5'-tetramethylbenzidine (TMB) and generate a colour change from colourless to blue. On this basis, a colorimetric glucose sensing method assisted by glucose oxidase (GOx) was developed. Under the optimal conditions, the detection limits of the proposed assay for H2O2 and glucose were 0.36 µM and 1.27 µM, respectively. Furthermore, the fabricated colorimetric method was successfully applied to analyze glucose concentrations by using a paper device as a measuring platform without a spectrometer. In addition, this method exhibited satisfactory recovery for glucose detection in human serum samples and urine samples, which satisfied the requirements for normal detection of real samples. This study provides a good candidate for health monitoring of glucose and also expands the applications of nanoenzymes and paper-based colorimetric assays in point-of-care testing.
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Affiliation(s)
- Ye He
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Panlin Wang
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Xiaojing Chen
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Yahuang Li
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Jiajun Wei
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Guoxi Cai
- Department of International Health and Medical Anthropology, Institute of Tropical Medicine (NEKKEN), Nagasaki University, Nagasaki 852-8523, Japan
| | - Kiyoshi Aoyagi
- Department of Public Health, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
| | - Wenxiang Wang
- Department of Health Inspection and Quarantine, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
- Fujian Province Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
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8
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Xie M, Yao G, Zhang T, Wang Q, Mo X, Dong Q, Lou W, Lu F, Pan T, Gao M, Jiang D, Zhao K, Lin Y. Multifunctional flexible contact lens for eye health monitoring using inorganic magnetic oxide nanosheets. J Nanobiotechnology 2022; 20:202. [PMID: 35477463 PMCID: PMC9044588 DOI: 10.1186/s12951-022-01415-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/07/2022] [Indexed: 11/30/2022] Open
Abstract
As a non-invasive innovative diagnosis platform, advanced flexible contact lenses can dynamically monitor vital ocular indicators, spot abnormalities and provide biofeedback guidance for real-time diagnosis and rehabilitation tracking of chronic eye diseases. However, most of the state-of-the-art reported contact lenses either can only monitor a single indicator at a time or realize multifunctional integration based on multiple materials. Herein, we developed a flexible multifunctional contact lens based on inorganic γ-Fe2O3@NiO magnetic oxide nanosheets, which can be attached conformally and seamlessly to the eyeball to simultaneously monitor glucose level in tears, eyeball movement, and intraocular pressure. The optimized contact lens has a reliable glucose detection limit (0.43 μmol), superior eye movement measurement accuracy (95.27%) and high intraocular pressure sensitivity (0.17 MHz mmHg− 1). This work presents a concept in the biochemical and biophysical integrated sensing of ocular signals using contact lens via an innovative material, and provides a personalized and efficient way for health management.
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Affiliation(s)
- Maowen Xie
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Guang Yao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China. .,State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China. .,Medico-Engineering Cooperation on Applied Medicine Research Center, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.
| | - Tianyao Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Qian Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Xiaoyi Mo
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Qiwei Dong
- Medico-Engineering Cooperation on Applied Medicine Research Center, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Wenhao Lou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Fang Lu
- Medico-Engineering Cooperation on Applied Medicine Research Center, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Taisong Pan
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.,State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Min Gao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.,State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kangning Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, Hubei, China
| | - Yuan Lin
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China. .,State Key Laboratory of Electronic Thin films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China. .,Medico-Engineering Cooperation on Applied Medicine Research Center, University of Electronic Science and Technology of China, Chengdu, 610054, Sichuan, China.
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9
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Deng L, Yuan J, Huang H, Xie S, Xu J, Yue R. Fabrication of hierarchical Ru/PEDOT:PSS/Ti 3C 2T x nanocomposites as electrochemical sensing platforms for highly sensitive Sudan I detection in food. Food Chem 2022; 372:131212. [PMID: 34600196 DOI: 10.1016/j.foodchem.2021.131212] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/26/2021] [Accepted: 09/20/2021] [Indexed: 01/07/2023]
Abstract
In our paper, a promising electrochemical sensing platform was fabricated with titanium carbide (Ti3C2Tx), poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), and ruthenium nanoparticles (RuNPs). First, the Shandong pancake structural PEDOT:PSS/Ti3C2Tx was prepared by physical stirring. PEDOT:PSS as the dispersant was embedded into the Ti3C2Tx nanosheets, increasing the degree of dispersion of the Ti3C2Tx nanosheets and further improving the specific surface area of the composite material. Then, RuNPs were supported on the surface of PEDOT:PSS/Ti3C2Tx to form the hierarchical ternary nanocomposite of Ru/PEDOT:PSS/Ti3C2Tx. The prepared Ru/PEDOT:PSS/Ti3C2Tx nanocomposite exhibited promising electrochemical sensing properties toward Sudan I detection with a wide detection range of 0.01 ∼ 100 μM and a high sensitivity of 482.43 μA mM-1 cm-2. Moreover, the Ru/PEDOT:PSS/Ti3C2Tx sensing platform has been successfully applied for Sudan I detection in ketchup and chili paste, implying the promising application prospect of Ru/PEDOT:PSS/Ti3C2Tx in food safety testing.
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Affiliation(s)
- Lu Deng
- College of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Jie Yuan
- College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Hui Huang
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Shuqian Xie
- College of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Jingkun Xu
- College of Chemistry and Chemical Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
| | - Ruirui Yue
- College of Life Science, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
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10
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Deng L, Yuan J, Xie S, Huang H, Yue R, Xu J. A novel Pd-Fe3O4/PEDOT:PSS/nitrogen and sulfur doped-Ti3C2Tx frameworks as highly sensitive sensing platform toward parathion-methyl residue in nature. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.139897] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Developments of the Electroactive Materials for Non-Enzymatic Glucose Sensing and Their Mechanisms. ELECTROCHEM 2021. [DOI: 10.3390/electrochem2020025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A comprehensive review of the electroactive materials for non-enzymatic glucose sensing and sensing devices has been performed in this work. A general introduction for glucose sensing, a facile electrochemical technique for glucose detection, and explanations of fundamental mechanisms for the electro-oxidation of glucose via the electrochemical technique are conducted. The glucose sensing materials are classified into five major systems: (1) mono-metallic materials, (2) bi-metallic materials, (3) metallic-oxide compounds, (4) metallic-hydroxide materials, and (5) metal-metal derivatives. The performances of various systems within this decade have been compared and explained in terms of sensitivity, linear regime, the limit of detection (LOD), and detection potentials. Some promising materials and practicable methodologies for the further developments of glucose sensors have been proposed. Firstly, the atomic deposition of alloys is expected to enhance the selectivity, which is considered to be lacking in non-enzymatic glucose sensing. Secondly, by using the modification of the hydrophilicity of the metallic-oxides, a promoted current response from the electro-oxidation of glucose is expected. Lastly, by taking the advantage of the redistribution phenomenon of the oxide particles, the usage of the noble metals is foreseen to be reduced.
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12
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Efficient Mercury Removal at Ultralow Metal Concentrations by Cysteine Functionalized Carbon-Coated Magnetite. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This work reports the preparation and utility of cysteine-functionalized carbon-coated Fe3O4 materials (Cys-C@Fe3O4) as efficient sorbents for remediation of Hg(II)-contaminated water. Efficient removal (90%) of Hg(II) from 1000 ppb aqueous solutions is possible, at very low Cys-C@Fe3O4 sorbent loadings (0.01 g sorbent per liter of Hg(II) solution). At low metal concentrations (5–100 ppb Hg(II)), where adsorption is typically slow, Hg(II) removal efficiencies of 94–99.4% were achievable, resulting in final Hg(II) levels of <1.0 ppb. From adsorption isotherms, the Hg(II) adsorption capacity for Cys-C@Fe3O4 is 94.33 mg g−1, around three times that of carbon-coated Fe3O4 material. The highest partition coefficient (PC) of 2312.5 mgg−1µM−1 was achieved at the initial Hg (II) concentration of 100 ppb, while significantly high PC values of 300 mgg−1µM−1 and above were also obtained in the ultralow concentration range (≤20 ppb). Cys-C@Fe3O4 exhibits excellent selectivity for Hg(II) when tested in the presence of Pb(II), Ni(II), and Cu(II) ions, is easily separable from aqueous media by application of an external magnet, and can be regenerated for three subsequent uses without compromising Hg(II) uptake. Derived from commercially available raw materials, it is highly possible to achieve large-scale production of the functional sorbent for practical applications.
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