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Soltani-Shahrivar M, Afkhami A, Madrakian T. Design and optimization of a cost-effective paper-based voltammetric sensor for the determination of trinitrotoluene (TNT) utilizing cysteamine-linked Fe 3O 4 @Au nanocomposite. Talanta 2024; 274:126041. [PMID: 38581854 DOI: 10.1016/j.talanta.2024.126041] [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: 12/02/2023] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
This paper presents the development and optimization of a cost-effective paper electrochemical sensor for the detection of TNT using Fe3O4-Au core-shell nanoparticles modified with cysteamine (Fe3O4@Au/CA). The sensor was constructed by modifying a graphite paste with the aforementioned nanoparticles, which facilitated the formation of a Meisenheimer complex between cysteamine and TNT as an electron donor and an electron acceptor, respectively. The central composite design was employed to optimize four key parameters pH, modifier percentage, contact time, and buffer type to enhance the performance of the sensor. The detection limit was found to be 0.5 nM of TNT, while the linear range of the electrode response spanned from 0.002 μM to 10 μM. The simplicity and low cost of the sensor make it highly attractive for practical applications, particularly in scenarios where rapid and on-site TNT detection is required.
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Affiliation(s)
- Morteza Soltani-Shahrivar
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Science, Bu-Ali Sina University, Hamedan, Iran
| | - Abbas Afkhami
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Science, Bu-Ali Sina University, Hamedan, Iran; D-8 International University, Hamedan, Iran.
| | - Tayyebeh Madrakian
- Department of Analytical Chemistry, Faculty of Chemistry and Petroleum Science, Bu-Ali Sina University, Hamedan, Iran.
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2
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Soltani-Shahrivar M, Afkhami A, Madrakian T, Jalal NR. Sensitive and selective impedimetric determination of TNT using RSM-CCD optimization. Talanta 2023; 257:124381. [PMID: 36801757 DOI: 10.1016/j.talanta.2023.124381] [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: 12/24/2022] [Revised: 02/05/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
Detection of trace amounts of 2,4,6-Trinitrotoluene as a widely used explosive in the military and industrial sectors is of vital importance due to security and environmental concerns. The sensitive and selective measurement characteristics of the compound still is considered a challenge for analytical chemists. Unlike conventional optical and electrochemical methods, the electrochemical impedance spectroscopy technique (EIS), has a very high sensitivity, but it faces a significant challenge in that it requires complex and expensive steps to modify the electrode surface with selective agents. We reported the design and construction of an inexpensive, simple, sensitive, and selective impedimetric electrochemical TNT sensor based on the formation of a Meisenheimer complex between magnetic multiwalled carbon nanotubes modified with aminopropyl triethoxysilane (MMWCNTs @ APTES) and TNT. The formation of the mentioned charge transfer complex at the electrode-solution interface blocks the electrode surface and disrupts the charge transfer in [(Fe (CN) 6)] 3-/4- redox probe system. Charge transfer resistance changes (ΔRCT) were used as an analytical response that corresponded to TNT concentration. To investigate the influence of effective parameters on the electrode response, such as pH, contact time, and modifier percentage, the response surface methodology based on central composite design (RSM-CCD) was used. The calibration curve was achieved in the range of 1-500 nM with a detection limit of 0.15 nM under optimal conditions, which included pH of 8.29, contact time of 479 s, and modifier percentage of 12.38% (w/w). The selectivity of the constructed electrode towards several nitroaromatic species was investigated, and no significant interference was found. Finally, the proposed sensor was able to successfully measure TNT in various water samples with satisfactory recovery percentages.
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Affiliation(s)
| | - Abbas Afkhami
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran; D-8 International University, Hamedan, Iran.
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Emambakhsh F, Asadollahzadeh H, Rastakhiz N, Mohammadi SZ. Highly sensitive determination of Bisphenol A in water and milk samples by using magnetic activated carbon – Cobalt nanocomposite-screen printed electrode. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Detection of Nitroaromatic Explosives in Air by Amino-Functionalized Carbon Nanotubes. NANOMATERIALS 2022; 12:nano12081278. [PMID: 35457985 PMCID: PMC9027238 DOI: 10.3390/nano12081278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 11/17/2022]
Abstract
Nitroaromatic explosives are the most common explosives, and their detection is important to public security, human health, and environmental protection. In particular, the detection of solid explosives through directly revealing the presence of their vapors in air would be desirable for compact and portable devices. In this study, amino-functionalized carbon nanotubes were used to produce resistive sensors to detect nitroaromatic explosives by interaction with their vapors. Devices formed by carbon nanotube networks working at room temperature revealed trinitrotoluene, one of the most common nitroaromatic explosives, and di-nitrotoluene-saturated vapors, with reaction and recovery times of a few and tens of seconds, respectively. This type of resistive device is particularly simple and may be easily combined with low-power electronics for preparing portable devices.
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Dighole RP, Munde AV, Mulik BB, Zade SS, Sathe BR. Melamine functionalised multiwalled carbon nanotubes (M-MWCNTs) as a metal-free electrocatalyst for simultaneous determination of 4-nitrophenol and nitrofurantoin. NEW J CHEM 2022. [DOI: 10.1039/d2nj03901j] [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
An innovative melamine functionalised multiwalled carbon nanotube (M-MWCNTs) based electrochemical sensor has been developed for the determination of environmental nitro-aromatic pollutants, such as 4-nitrophenol (4-NP) and nitrofurantoin (NFT).
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Affiliation(s)
- Raviraj P. Dighole
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS, India
- Arts, Science & Commerce College, Badnapur 431202, India
| | - Ajay V. Munde
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS, India
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Balaji B. Mulik
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS, India
| | - Sanjio S. Zade
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, Nadia 741246, West Bengal, India
| | - Bhaskar R. Sathe
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MS, India
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Yadav N, Garg VK, Chhillar AK, Rana JS. Detection and remediation of pollutants to maintain ecosustainability employing nanotechnology: A review. CHEMOSPHERE 2021; 280:130792. [PMID: 34162093 DOI: 10.1016/j.chemosphere.2021.130792] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 06/13/2023]
Abstract
Environmental deterioration due to anthropogenic activities is a threat to sustainable, clean and green environment. Accumulation of hazardous chemicals pollutes soil, water and air and thus significantly affects all the ecosystems. This article highlight the challenges associated with various conventional techniques such as filtration, absorption, flocculation, coagulation, chromatographic and mass spectroscopic techniques. Environmental nanotechnology has provided an innovative frontier to combat the aforesaid issues of sustainable environment by reducing the non-requisite use of raw materials, electricity, excessive use of agrochemicals and release of industrial effluents into water bodies. Various nanotechnology based approaches including surface enhance scattering, surface plasmon resonance; and distinct types of nanoparticles like silver, silicon oxide and zinc oxide have contributed significantly in detection of environmental pollutants. Biosensing technology has also gained significant attention for detection and remediation of pollutants. Furthermore, nanoparticles of gold, ferric oxide and manganese oxide have been used for the on-site remediation of antibiotics, organic dyes, pesticides, and heavy metals. Recently, green nanomaterials have been given more attention to address toxicity issues of chemically synthesized nanomaterials. Hence, nanotechnology has provided a platform with tremendous applications to have sustainable environment for present as well as future generations. This review article will help to understand the fundamentals for achieving the goals of sustainable development, and healthy environment.
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Affiliation(s)
- Neelam Yadav
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonepat, Haryana, 131039, India; Centre for Biotechnology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India.
| | - Vinod Kumar Garg
- Department of Environmental Science and Technology, Central University of Punjab, Bathinda, Punjab, 151001, India.
| | - Anil Kumar Chhillar
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
| | - Jogender Singh Rana
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal, Sonepat, Haryana, 131039, India
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Colorimetric optical nanosensors for trace explosive detection using metal nanoparticles: advances, pitfalls, and future perspective. Emerg Top Life Sci 2021; 5:367-379. [PMID: 33960382 DOI: 10.1042/etls20200281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/07/2021] [Accepted: 04/19/2021] [Indexed: 11/17/2022]
Abstract
Warfare threats and acts of terror are challenging situations encountered by defense agencies across the globe and are of growing concern to the general public, and security-minded policy makers. Detecting ultra-low quantities of explosive compounds in remote locations or under harsh conditions for anti-terror purposes as well as the environmental monitoring of residual or discarded explosives in soil, remains a major challenge. The use of metal nanoparticles (NPs) for trace explosive detection has drawn considerable interest in recent years. For nano-based explosive sensor devices to meet real-life operational demands, analytical parameters such as, long-shelf life, stability under harsh conditions, ease-of-use, high sensitivity, excellent selectivity, and rapid signal response must be met. Generally, the analytical performance of colorimetric-based nanosensor systems is strongly dependent on the surface properties of the nanomaterial used in the colorimetric assay. The size and shape properties of metal NPs, surface functionalisation efficiency, and assay fabrication methods, are factors that influence the efficacy of colorimetric explosive nanosensor systems. This review reports on the design and analytical performances of colorimetric explosive sensor systems using metal NPs as optical signal transducers. The challenges of trace explosive detection, advances in metal NP colorimetric explosive design, limitations of each methods, and possible strategies to mitigate the problems are discussed.
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To KC, Ben-Jaber S, Parkin IP. Recent Developments in the Field of Explosive Trace Detection. ACS NANO 2020; 14:10804-10833. [PMID: 32790331 DOI: 10.1021/acsnano.0c01579] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Explosive trace detection (ETD) technologies play a vital role in maintaining national security. ETD remains an active research area with many analytical techniques in operational use. This review details the latest advances in animal olfactory, ion mobility spectrometry (IMS), and Raman and colorimetric detection methods. Developments in optical, biological, electrochemical, mass, and thermal sensors are also covered in addition to the use of nanomaterials technology. Commercially available systems are presented as examples of current detection capabilities and as benchmarks for improvement. Attention is also drawn to recent collaborative projects involving government, academia, and industry to highlight the emergence of multimodal screening approaches and applications. The objective of the review is to provide a comprehensive overview of ETD by highlighting challenges in ETD and providing an understanding of the principles, advantages, and limitations of each technology and relating this to current systems.
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Affiliation(s)
- Ka Chuen To
- Department of Chemistry, University College London, 20 Gordon Street, Bloomsbury, London WC1H 0AJ, United Kingdom
| | - Sultan Ben-Jaber
- Department of Science and Forensics, King Fahad Security College, Riyadh 13232, Saudi Arabia
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon Street, Bloomsbury, London WC1H 0AJ, United Kingdom
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Kumar V, Saharan P, Sharma AK, Kaushal I, Dhuan S. Silver embellished PANI/CNT nanocomposite for antimicrobial activity and sequestration of dye based on RSM modelling. ENVIRONMENTAL TECHNOLOGY 2020; 41:2991-3003. [PMID: 30855214 DOI: 10.1080/09593330.2019.1593512] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
Silver doped PANI/CNT (Ag-PANI/CNT) nanocomposite was synthesized and investigated as adsorbent for its possible application in the elimination of organic dye Brilliant Blue G (BBG). The morphological characteristics of Ag-PANI/CNT were studied using Fourier transform infrared, scanning electron microscopy, elemental mapping, transmission electron microscopy and X-ray diffraction. The response of operational parameters given as adsorbent dosage, concentration, pH and contact time for dye removal were investigated by using Response Surface Methodology (RSM). The results from RSM suggested that the efficiency of BBG elimination is 98.7 under the optimum conditions of experimental factors. The adsorption studies showed that the equilibrium data fitted well with Langmuir isotherm model compared to Freundlich. Finally, the antimicrobial activities of Ag-PANI/CNT were tested against bacterial strain Escherichia coli and Salmonella typhi and fungal strains Aspergillus niger.
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Affiliation(s)
- Vinit Kumar
- Thin Film Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal, India
| | - Priya Saharan
- Thin Film Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal, India
| | - Ashok K Sharma
- Thin Film Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal, India
| | - Indu Kaushal
- Thin Film Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal, India
| | - Surender Dhuan
- Thin Film Laboratory, Department of Materials Science & Nanotechnology, D.C.R. University of Science & Technology, Murthal, India
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Singh VV, Sharma PK, Shrivastava A, Gutch PK, Ganesan K, Boopathi M. Electrochemical Sensing of Chemical Warfare Agent Based on Hybrid Material Silver‐aminosilane Graphene Oxide. ELECTROANAL 2020. [DOI: 10.1002/elan.202000014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Virendra V. Singh
- Defence Research and Development Establishment, DRDO Gwalior 474002 India
| | | | - Anchal Shrivastava
- Defence Research and Development Establishment, DRDO Gwalior 474002 India
| | - Pranav K. Gutch
- Defence Research and Development Establishment, DRDO Gwalior 474002 India
| | - Kumaran Ganesan
- Defence Research and Development Establishment, DRDO Gwalior 474002 India
| | - Mannan Boopathi
- Defence Research and Development Establishment, DRDO Gwalior 474002 India
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11
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Zhang Y, Ma Y, Wang L. Simple Copper Nanoparticle/Polyfurfural Film Modified Electrode for the Determination of 2, 4, 6-Trinitrotoluene (TNT). ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1751182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yunlong Zhang
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Ya Ma
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Lishi Wang
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
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12
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PEGylation of graphene/iron oxide nanocomposite: assessment of release of doxorubicin, magnetically targeted drug delivery and photothermal therapy. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01255-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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A graphene electrode functionalized with aminoterephthalic acid for impedimetric immunosensing of Escherichia coli. Mikrochim Acta 2019; 186:800. [PMID: 31741076 DOI: 10.1007/s00604-019-3952-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 10/17/2019] [Indexed: 12/11/2022]
Abstract
A screen-printed electrode prepared from graphene oxide (GO) has been functionalized with 2-aminoterephthalic acid, followed by the exploitation of this functional material in an electrochemical immunoassay for Escherichia coli (E. coli) by immobilizing the antibody on its surface. The functionalization steps followed a straightforward approach and were proven by various instrumental techniques. The detection of E. coli with antibody immobilized electrodes was performed using electrochemical impedance spectroscopy. The analyses were carried out using the hexacyanoferrate redox couple as the electrochemical probe. The present method has a wide analytical range (from 2.2 × 102 to 2.2 × 108 cfu.mL-1), a low limit of detection (2 cfu.mL-1), fast response (4 min), and good stability (up to 2 months). The analytical performance of the biosensor was comparable to the previously reported electrochemical biosensors for E. coli. As such, the approach of functionalization of graphene with 2-aminoterephthalic acid should be useful to allow the development of other similar sensing systems for other environmentally and clinically important analytes. Graphical abstractSchematic representation of the preparation and the function of an amino-functionalized graphene oxide (NH2-GO) based impedimetric biosensor for the electrochemical detection of E. coli.
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Saleh TA, Fadillah G, Saputra OA. Nanoparticles as components of electrochemical sensing platforms for the detection of petroleum pollutants: A review. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.05.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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A disposable electrochemical sensor based on electrospinning of molecularly imprinted nanohybrid films for highly sensitive determination of the organotin acaricide cyhexatin. Mikrochim Acta 2019; 186:504. [PMID: 31270627 DOI: 10.1007/s00604-019-3631-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/20/2019] [Indexed: 10/26/2022]
Abstract
Nanofibrous polyporous membranes imprinted with cyhexatin (CYT) were formed via the ordered distribution of the imprints in electrospun nanofibers. The MIPs have a high mass transfer rate and enhanced adsorption capacity. In addition, a printed carbon electrode with enhanced sensitivity was developed via electrochemical fabrication of reduced graphene oxide (rGO) and gold nanoparticles (AuNPs). The molecularly imprinted sensor exhibits excellent selectivity and sensitivity for CYT. The structure and morphology of the nanohybrid films were characterized by using scanning electron microscopy, atomic force microscopy and chronoamperometry. The sensing performances were evaluated by cyclic voltammetry, differential pulse voltammetry and electrochemical impedance spectroscopy by using hexacyanoferrate(IV) as an electrochemical probe. The electrode, best operated at a working potential of around 0.16 V (vs. Ag/AgCl), has a linear response in the 1-800 ng mL-1 CYT concentration range and a detection limit of 0.17 ng mL-1 (at S/N = 3). The sensor demonstrated satisfactory recoveries when applied to the determination of CYT in spiked pear samples. Graphical abstract Schematic presentation of the electrochemical sensor for detection of CYT.
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Modulation of the electrocatalytic activity of Fe phthalocyanine to carbon nanotubes: Electrochemistry of l-cysteine and l-cystine. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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17
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Ramezani Farani M, Khadive Parsi P, Riazi G, Shafiee Ardestani M, Saligeh Rad H. Extending the application of a magnetic PEG three-part drug release device on a graphene substrate for the removal of Gram-positive and Gram-negative bacteria and cancerous and pathologic cells. Drug Des Devel Ther 2019; 13:1581-1591. [PMID: 31190738 PMCID: PMC6512786 DOI: 10.2147/dddt.s181090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective In this study, novel graphene oxide (GO)-based nanocomposites are presented. In fact, we have tried to replace the carboxyl groups on the surface of GO with amine groups to allow the biocompatible poly(ethylene glycol) bis(carboxymethyl) ether (average Mn 600) polymer to bond through an amide bond. Materials and methods The synthesis was conducted accurately according to final characterization experiments (Raman, X-ray diffraction [XRD], atomic force microscopy [AFM], X-ray photoelectron spectroscopy [XPS], thermogravimetric analysis [TGA], etc). The antimicrobial property of this nanocomposite was examined in Escherichia coli (ATCC 25922) as Gram-negative and Staphylococcus aureus (ATCC 25923) as Gram-positive bacterial species. Besides, curcumin (CUR) was added to the produced nanocomposite both as a promising anticancer drug and an antioxidant, the toxicity of which was then assessed on cellular-based HepG2 and pC12. Results An intense increase in toxicity was detected by MTT assay. Conclusion It can mainly be concluded that the nanocomposite synthesized in this study is capable of delivering drugs with antibacterial properties.
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Affiliation(s)
- M Ramezani Farani
- School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran 4563-11155, Iran,
| | - P Khadive Parsi
- School of Chemical Engineering, University College of Engineering, University of Tehran, Tehran 4563-11155, Iran,
| | - Gh Riazi
- Institute of Biophysics and Biochemistry, University of Tehran, Tehran 1417614411, Iran
| | - M Shafiee Ardestani
- Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran,
| | - H Saligeh Rad
- Quantitative Medical Imaging Systems Group, Research Center for Molecular and Cellular Imaging, Tehran University of Medical Sciences, Tehran, Iran.,Medical Physics and Biomedical Engineering Department, Tehran University of Medical Sciences, Tehran, Iran
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Jurzinsky T, Gomez-Villa ED, Kübler M, Bruns M, Elsässer P, Melke J, Scheiba F, Cremers C. Functionalization of multi-walled carbon nanotubes with indazole. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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19
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Bairagi PK, Gupta GS, Verma N. Fe‐enriched Clay‐coated and Reduced Graphene Oxide‐modified N‐doped Polymer Nanocomposite: A Natural Recognition Element‐based Sensing Electrode for DNT. ELECTROANAL 2018. [DOI: 10.1002/elan.201800585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Pallab K. Bairagi
- Department of Chemical EngineeringIndian Institute of Technology Kanpur Kanpur- 208016 India
| | - Govind S. Gupta
- Center for Environmental Science and EngineeringIndian Institute of Technology Kanpur Kanpur- 208016 India
| | - Nishith Verma
- Department of Chemical EngineeringIndian Institute of Technology Kanpur Kanpur- 208016 India
- Center for Environmental Science and EngineeringIndian Institute of Technology Kanpur Kanpur- 208016 India
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Zhang Q, Zhao X, Sui G, Yang X. Surface Sizing Treated MWCNTs and Its Effect on the Wettability, Interfacial Interaction and Flexural Properties of MWCNT/Epoxy Nanocomposites. NANOMATERIALS 2018; 8:nano8090680. [PMID: 30200354 PMCID: PMC6165148 DOI: 10.3390/nano8090680] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/28/2018] [Accepted: 08/28/2018] [Indexed: 11/16/2022]
Abstract
A surface-sizing technique was offered to take full advantage of multi-walled carbon nanotubes (MWCNTs) and epoxy resins. Two surface-sizing treated MWCNTs were obtained through a ball-milling treatment of amino-functionalized MWCNTs (MWCNT-NH2) with n-butyl glycidylether (BuGE) and benzyl glycidylether (BeGE). These were referred to as MWCNT-BuGE and MWCNT-BeGE. The results indicated that the surface sizing effectively enhanced wettability, dispersibility of MWCNTs in the epoxy resin. These ameliorating effects, along with improved interfacial interaction between MWCNT-BeGE containing benzene rings and the epoxy matrix, which can offer a more efficient local load-transfer from matrix to MWCNTs, as observed by a higher G-band shift in Raman spectrum under bending loads than that of MWCNT-BuGE reinforced ones. Correspondingly, MWCNT-BeGE/epoxy nanocomposites exhibited increasing flexural strength and modulus of 22.9% and 37.8% respectively compared with the neat epoxy, and 7.3% and 7.7% respectively compared with MWCNT-BuGE/epoxy nanocomposites with the same MWCNT content.
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Affiliation(s)
- Qingjie Zhang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China.
| | - Xinfu Zhao
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Gang Sui
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
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Alizadeh N, Ghoorchian A. Hybrid Optoelectrochemical Sensor for Superselective Detection of 2,4,6-Trinitrotoluene Based on Electrochemical Reduced Meisenheimer Complex. Anal Chem 2018; 90:10360-10368. [DOI: 10.1021/acs.analchem.8b02183] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Naader Alizadeh
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran 14115-175
| | - Arash Ghoorchian
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, Iran 14115-175
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Wen Z, Chen W, Li Y, Xu J. A Theoretical Mechanism Study on the Ethylenediamine Grafting on Graphene Oxides for
$$\hbox {CO}_{2}$$
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Capture. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/s13369-018-3087-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Caliman CC, Mesquita AF, Cipriano DF, Freitas JCC, Cotta AAC, Macedo WAA, Porto AO. One-pot synthesis of amine-functionalized graphene oxide by microwave-assisted reactions: an outstanding alternative for supporting materials in supercapacitors. RSC Adv 2018; 8:6136-6145. [PMID: 35539592 PMCID: PMC9078217 DOI: 10.1039/c7ra13514a] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 01/31/2018] [Indexed: 11/21/2022] Open
Abstract
A simple and straightforward method using microwave-assisted reactions is presented for the functionalization of graphene oxide with aromatic and non-aromatic amines, notedly dibenzylamine (DBA), p-phenylenediamine (PPD), diisopropylamine (DPA) and piperidine (PA). The as-synthesized amine-functionalized graphene oxide materials (amine-GO) were characterized using spectroscopic techniques including XRD, FTIR, 13C NMR, XPS, TEM for imaging and thermogravimetric analysis (TGA). The characterization confirmed the functionalization for all amines, reaching relatively high surface nitrogen atomic concentrations of up to 8.8%. The investigations of electrochemical behavior for the amine-GOs show the significant improvement in GO's electrochemical properties through amine functionalization, exhibiting long life cycle stability and reaching specific capacitance values of up to 290 F g−1 and 260 F g−1 for GO-PA and GO-DPA samples, respectively, confirming their potential application as alternative supporting materials in supercapacitors. A simple and straightforward method using microwave-assisted reactions is presented for the functionalization of graphene oxide with aromatic and non-aromatic amines.![]()
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Affiliation(s)
- C. C. Caliman
- Department of Chemistry
- Federal University of Espírito Santo – UFES
- Vitória 29075-910
- Brazil
| | - A. F. Mesquita
- Department of Chemistry
- Federal University of Espírito Santo – UFES
- Vitória 29075-910
- Brazil
| | - D. F. Cipriano
- Laboratory of Carbon and Ceramic Materials
- Department of Physics
- Federal University of Espírito Santo – UFES
- Vitória 29075-910
- Brazil
| | - J. C. C. Freitas
- Laboratory of Carbon and Ceramic Materials
- Department of Physics
- Federal University of Espírito Santo – UFES
- Vitória 29075-910
- Brazil
| | - A. A. C. Cotta
- Nuclear Technology Development Center – CNEN-CDTN
- Belo Horizonte
- Brazil
| | - W. A. A. Macedo
- Nuclear Technology Development Center – CNEN-CDTN
- Belo Horizonte
- Brazil
| | - A. O. Porto
- Department of Chemistry
- Federal University of Minas Gerais, UFMG
- Belo Horizonte 31270-901
- Brazil
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Xue B, Liu X, Liu N, Li Y. A simple strategy to prepare graphene oxide modified by ammonia gas catalysts for Knoevenagel condensation. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3182-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ansari MO, Kumar R, Ansari SA, Ansari SP, Barakat MA, Alshahrie A, Cho MH. Anion selective pTSA doped polyaniline@graphene oxide-multiwalled carbon nanotube composite for Cr(VI) and Congo red adsorption. J Colloid Interface Sci 2017; 496:407-415. [PMID: 28242347 DOI: 10.1016/j.jcis.2017.02.034] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/13/2017] [Accepted: 02/14/2017] [Indexed: 11/19/2022]
Abstract
Multiwalled carbon nanotube (CNT)-graphene oxide (GO) composite was combined with polyaniline (Pani) using an oxidative polymerisation technique. The resulting Pani@GO-CNT was later doped with para toluene sulphonic acid (pTSA) to generate additional functionality. The functional groups exposed on the GO, Pani and pTSA were expected to impart a high degree of functionality to the pTSA-Pani@GO-CNT composite system. The composite was characterised by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The characterisation results revealed the characteristics of Pani, GO, CNT, and pTSA, and suggested the successful formation of the pTSA-Pani@GO-CNT composite system. The composite was utilised successfully for the adsorptive removal of Cr(IV) and Congo red (CR) dye and the adsorption of both pollutants was found to be strongly dependent on the solution pH, adsorbate concentration, contact time, and reaction temperature. The maximum adsorption of Cr(IV) and CR was observed in an acidic medium at 30°C. The kinetics for Cr(IV) and CR adsorption was studied using pseudo-first order, pseudo-second order, and intraparticle diffusion models. The adsorption equilibrium data were also fitted to the Langmuir and Freundlich isotherm models. The thermodynamic results showed that the adsorption process was exothermic in nature. The present study provides a new methodology for the preparation of a highly functionalised Pani-based nanocomposite system and its potential applications to the adsorptive removal of a multicomponent pollutant system from an aqueous solution.
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Affiliation(s)
- Mohammad Omaish Ansari
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Rajeev Kumar
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
| | - Sajid Ali Ansari
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Shahid Pervez Ansari
- Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - M A Barakat
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Central Metallurgical R & D Institute, Helwan 11421, Cairo, Egypt
| | - Ahmed Alshahrie
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Physics Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Moo Hwan Cho
- School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea.
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Wu P, Deng D, Zhang H, Cai C. Electrochemical detection of trinitrotoluene in water samples based on a natural mineral attapulgite modified electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Vu HTT, Le HTV, Pham YTH, Le HQ, Pham PH. Electrochemical Detection of TNT by Differential Pulse Adsorptive Stripping Voltammetry at Carbon Paste Electrode Modified by 1-Butyl-3-methylimidazolium Tetrafluoroborate. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10691] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ha Thi Thu Vu
- Institute of Chemistry; Vietnam Academy of Science and Technology; Hanoi 1000 Vietnam
| | | | - Yen Thi Hai Pham
- Institute of Chemistry; Vietnam Academy of Science and Technology; Hanoi 1000 Vietnam
| | - Hung Quoc Le
- Institute of Chemistry; Vietnam Academy of Science and Technology; Hanoi 1000 Vietnam
| | - Phong Hong Pham
- Institute of Chemistry; Vietnam Academy of Science and Technology; Hanoi 1000 Vietnam
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29
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NIE DX, SHI GY, YU YY. Fe3O4 Magnetic Nanoparticles as Peroxidase Mimetics Used in Colorimetric Determination of 2,4-Dinitrotoluene. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60902-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yu X, Wang D, Yuan B, Song L, Hu Y. The effect of carbon nanotubes/NiFe2O4 on the thermal stability, combustion behavior and mechanical properties of unsaturated polyester resin. RSC Adv 2016. [DOI: 10.1039/c6ra15246e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The incorporation of MWCNT@NiFe2O4 into the UPR matrix exhibit significant improvements in flame retardancy and mechanical properties, compared to that of pure UPR.
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Affiliation(s)
- Xiaojuan Yu
- State Key Laboratory of Fire Science
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Dong Wang
- State Key Laboratory of Fire Science
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Bihe Yuan
- School of Resources and Environmental Engineering
- Wuhan University of Technology
- Wuhan 430070
- China
| | - Lei Song
- State Key Laboratory of Fire Science
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Yuan Hu
- State Key Laboratory of Fire Science
- University of Science and Technology of China
- Hefei
- P. R. China
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Removal of uranium(VI) from aqueous solution using graphene oxide and its amine-functionalized composite. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4654-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hughes S, Dasary SSR, Begum S, Williams N, Yu H. MEISENHEIMER COMPLEX BETWEEN 2,4,6-TRINITROTOLUENE AND 3-AMINOPROPYLTRIETHOXYSILANE AND ITS USE FOR A PAPER-BASED SENSOR. SENSING AND BIO-SENSING RESEARCH 2015; 5:37-41. [PMID: 26380171 PMCID: PMC4566156 DOI: 10.1016/j.sbsr.2015.06.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
2,4,6-Trinitrotoluene (TNT) forms a red-colored Meisenheimer complex with 3-aminopropyltrenthoxysilane (APTES) both in solution and on solid phase. The TNT-APTES complex is unique since it forms yellow-colored complexes with 2,4,6-trinitrophenol and 4-nitrophenol, and no complex with 2,4-dinitrotoluene. The absorption spectrum of TNT-APTES has two absorption bands at 530 and 650 nm, while APTES complexes with 2,4,6-trinitrophenol and 4-nitrophenol have absorption maxima at around 420 nm, and no absorption change for 2,4-dinitrotoluene. The TNT-APTES complex facilitates the exchange of the TNT-CH3 proton/deuteron with solvent molecules. The red color of TNT-APTES is immediately visible at 1 µM of TNT.
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Affiliation(s)
- Shantelle Hughes
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217
| | - Samuel S R Dasary
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217
| | - Salma Begum
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217
| | - Nya Williams
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217
| | - Hongtao Yu
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217
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Wang YC, Cokeliler D, Gunasekaran S. Reduced Graphene Oxide/Carbon Nanotube/Gold Nanoparticles Nanocomposite Functionalized Screen-Printed Electrode for Sensitive Electrochemical Detection of Endocrine Disruptor Bisphenol A. ELECTROANAL 2015. [DOI: 10.1002/elan.201500120] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Xue B, Zhu J, Liu N, Li Y. Facile functionalization of graphene oxide with ethylenediamine as a solid base catalyst for Knoevenagel condensation reaction. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.02.003] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Shamsipur M, Tabrizi MA, Mahkam M, Aboudi J. A High Sensitive TNT Sensor Based on Electrochemically Reduced Graphene Oxide-Poly(amidoamine) Modified Electrode. ELECTROANAL 2015. [DOI: 10.1002/elan.201400634] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Park MS, Kim DY, Jung MJ, Lee YS. Effects of the Graphene Oxide on Glucose Oxidase Immobilization Capabilities and Sensitivities of Carbon Nanotube-based Glucose Biosensor Electrodes. APPLIED CHEMISTRY FOR ENGINEERING 2015. [DOI: 10.14478/ace.2014.1114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Golkaram M, van Duin AC. Revealing graphene oxide toxicity mechanisms: A reactive molecular dynamics study. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.md.2015.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zyryanov GV, Kopchuk DS, Kovalev IS, Nosova EV, Rusinov VL, Chupakhin ON. Chemosensors for detection of nitroaromatic compounds (explosives). RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n09abeh004467] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shorie M, Bhalla V, Pathania P, Suri CR. Nanobioprobe mediated DNA aptamers for explosive detection. Chem Commun (Camb) 2014; 50:1080-2. [PMID: 24316919 DOI: 10.1039/c3cc47562j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Specific nucleic acid aptamers using the microtiter plate based modified SELEX method against explosive trinitrotoluene are reported. Efficient partitioning of dsDNA was carried out using streptavidin labeled gold nanoprobes for the selection of specific aptamers. The selected binders having an affinity of ~10(-7) M were used in the newly developed electrochemical aptasensor, exhibiting a detection limit of around 1 ppb for trinitrotoluene.
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Liu ZG, Chen X, Liu JH, Huang XJ. Robust electrochemical analysis of As(III) integrating with interference tests: a case study in groundwater. JOURNAL OF HAZARDOUS MATERIALS 2014; 278:66-74. [PMID: 24953937 DOI: 10.1016/j.jhazmat.2014.05.094] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 05/24/2014] [Accepted: 05/31/2014] [Indexed: 06/03/2023]
Abstract
In Togtoh region of Inner Mongolia, northern China, groundwater encountered high concentrations As contamination (greater than 50 μg L(-1)) causes an increasing concern. This work demonstrates an electrochemical protocol for robust (efficient and accurate) determination of As(III) in Togtoh water samples using Au microwire electrode without the need of pretreatment or clean-up steps. Considering the complicated conditions of Togtoh water, the efficiency of Au microwire electrode was systematically evaluated by a series of interference tests, stability and reproducibility measurements. No obvious interference on the determination of As(III) was observed. Especially, the influence of humic acid (HA) was intensively investigated. Electrode stability was also observed with long-term measurements (70 days) in Togtoh water solution and under different temperatures (0-35 °C). Excellent reproducibility (RSD:1.28%) was observed from different batches of Au microwire electrodes. The results obtained at Au microwire electrode were comparable to that obtained by inductively coupled plasma atomic emission spectroscopy (ICP-AES), indicating a good accuracy. These evaluations (efficiency, robustness, and accuracy) demonstrated that the Au microwire electrode was able to determine As(III) in application to real environmental samples.
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Affiliation(s)
- Zhong-Gang Liu
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China
| | - Xing Chen
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Jin-Huai Liu
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Xing-Jiu Huang
- Nanomaterials and Environmental Detection Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China.
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Huang KJ, Liu YJ, Liu YM, Wang LL. Molybdenum disulfide nanoflower-chitosan-Au nanoparticles composites based electrochemical sensing platform for bisphenol A determination. JOURNAL OF HAZARDOUS MATERIALS 2014; 276:207-15. [PMID: 24887123 DOI: 10.1016/j.jhazmat.2014.05.037] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 05/02/2014] [Accepted: 05/14/2014] [Indexed: 05/23/2023]
Abstract
Two-dimensional transition metal dichalcogenide are attracting increasing attention in electrochemical sensing due to their unique electronic properties. In this work, flower-like molybdenum disulfide (MoS2) was prepared by a simple hydrothermal method. The scanning electron microscopy and transmission electron microscopy images showed the MoS2 nanoflower had sizes with diameter of about 200nm and was constructed with many irregular sheets as a petal-like structure with thickness of several nanometers. A novel electrochemical sensor was constructed for the determination of bisphenol A (BPA) based on MoS2 and chitosan-gold nanoparticles composites modified electrode. The sensor showed an efficient electrocatalytic role for the oxidation of BPA, and the oxidation overpotentials of BPA decreased significantly and the peak current increased greatly compared with bare GCE and other modified electrode. A good linear relationship between the oxidation peak current and BPA concentration was obtained in the range from 0.05 to 100μM with a detection limit of 5.0×10(-9)M (S/N=3). The developed sensor exhibited high sensitivity and long-term stability, and it was successfully applied for the determination of BPA in different samples. This work indicated MoS2 nanoflowers were promising in electrochemical sensing and catalytic applications.
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Affiliation(s)
- Ke-Jing Huang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China; State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Yu-Jie Liu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Ling-Ling Wang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
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