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Herrera-Rivera MDR, Torres-Arellanes SP, Cortés-Martínez CI, Navarro-Ibarra DC, Hernández-Sánchez L, Solis-Pomar F, Pérez-Tijerina E, Román-Doval R. Nanotechnology in food packaging materials: role and application of nanoparticles. RSC Adv 2024; 14:21832-21858. [PMID: 38984259 PMCID: PMC11231830 DOI: 10.1039/d4ra03711a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024] Open
Abstract
Global concerns about food security, driven by rising demand, have prompted the exploration of nanotechnology as a solution to enhance food supply. This shift comes in response to the limitations of conventional technologies in meeting the ever-increasing demand for food products. Consequently, nanoparticles play a crucial role in enhancing food production, preservation, and extending shelf life by imparting exceptional properties to materials. Nanoparticles and nanostructures with attributes like expansive surface area and antimicrobial efficacy, are versatile in both traditional packaging and integration into biopolymer matrices. These distinctive qualities contribute to their extensive use in various food sector applications. Hence, this review explores the physicochemical properties, functions, and biological aspects of nanoparticles in the context of food packaging. Furthermore, the synergistic effect of nanoparticles with different biopolymers, alongside its different potential applications such as food shelf-life extenders, antimicrobial agents and as nanomaterials for developing smart packaging systems were summarily explored. While the ongoing exploration of this research area is evident, our review highlights the substantial potential of nanomaterials to emerge as a viable choice for food packaging if the challenges regarding toxicity are carefully and effectively modulated.
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Affiliation(s)
| | - Sandra P Torres-Arellanes
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla Abasolo S/N, Barrio del Agua Buena Santiago Suchilquitongo Oaxaca 68230 Mexico
| | - Carlos Inocencio Cortés-Martínez
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla Abasolo S/N, Barrio del Agua Buena Santiago Suchilquitongo Oaxaca 68230 Mexico
| | - Diana C Navarro-Ibarra
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla Abasolo S/N, Barrio del Agua Buena Santiago Suchilquitongo Oaxaca 68230 Mexico
| | - Laura Hernández-Sánchez
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla Abasolo S/N, Barrio del Agua Buena Santiago Suchilquitongo Oaxaca 68230 Mexico
| | - Francisco Solis-Pomar
- Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León San Nicolas de los Garza Nuevo León 66451 Mexico
| | - Eduardo Pérez-Tijerina
- Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León San Nicolas de los Garza Nuevo León 66451 Mexico
| | - Ramón Román-Doval
- Tecnológico Nacional de México, Instituto Tecnológico del Valle de Etla Abasolo S/N, Barrio del Agua Buena Santiago Suchilquitongo Oaxaca 68230 Mexico
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2
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Dediu V, Ghitman J, Gradisteanu Pircalabioru G, Chan KH, Iliescu FS, Iliescu C. Trends in Photothermal Nanostructures for Antimicrobial Applications. Int J Mol Sci 2023; 24:ijms24119375. [PMID: 37298326 DOI: 10.3390/ijms24119375] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
The rapid development of antimicrobial resistance due to broad antibiotic utilisation in the healthcare and food industries and the non-availability of novel antibiotics represents one of the most critical public health issues worldwide. Current advances in nanotechnology allow new materials to address drug-resistant bacterial infections in specific, focused, and biologically safe ways. The unique physicochemical properties, biocompatibility, and wide range of adaptability of nanomaterials that exhibit photothermal capability can be employed to develop the next generation of photothermally induced controllable hyperthermia as antibacterial nanoplatforms. Here, we review the current state of the art in different functional classes of photothermal antibacterial nanomaterials and strategies to optimise antimicrobial efficiency. The recent achievements and trends in developing photothermally active nanostructures, including plasmonic metals, semiconductors, and carbon-based and organic photothermal polymers, and antibacterial mechanisms of action, including anti-multidrug-resistant bacteria and biofilm removal, will be discussed. Insights into the mechanisms of the photothermal effect and various factors influencing photothermal antimicrobial performance, emphasising the structure-performance relationship, are discussed. We will examine the photothermal agents' functionalisation for specific bacteria, the effects of the near-infrared light irradiation spectrum, and active photothermal materials for multimodal synergistic-based therapies to minimise side effects and maintain low costs. The most relevant applications are presented, such as antibiofilm formation, biofilm penetration or ablation, and nanomaterial-based infected wound therapy. Practical antibacterial applications employing photothermal antimicrobial agents, alone or in synergistic combination with other nanomaterials, are considered. Existing challenges and limitations in photothermal antimicrobial therapy and future perspectives are presented from the structural, functional, safety, and clinical potential points of view.
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Affiliation(s)
- Violeta Dediu
- National Research and Development Institute in Microtechnologies-IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Voluntari, Romania
| | - Jana Ghitman
- eBio-hub Research-Center, University "Politehnica" of Bucharest, 6 Iuliu Maniu Boulevard, Campus Building, 061344 Bucharest, Romania
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Gratiela Gradisteanu Pircalabioru
- eBio-hub Research-Center, University "Politehnica" of Bucharest, 6 Iuliu Maniu Boulevard, Campus Building, 061344 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
- Research Institute of University of Bucharest, University of Bucharest, 050095 Bucharest, Romania
| | - Kiat Hwa Chan
- Division of Science, Yale-NUS College, 16 College Avenue West, Singapore 138527, Singapore
- NUS College, National University of Singapore, 18 College Avenue East, Singapore 138593, Singapore
| | - Florina Silvia Iliescu
- National Research and Development Institute in Microtechnologies-IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Voluntari, Romania
| | - Ciprian Iliescu
- National Research and Development Institute in Microtechnologies-IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Voluntari, Romania
- eBio-hub Research-Center, University "Politehnica" of Bucharest, 6 Iuliu Maniu Boulevard, Campus Building, 061344 Bucharest, Romania
- Academy of Romanian Scientists, 54 Splaiul Independentei, 050094 Bucharest, Romania
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The effect of Co-encapsulated GNPs-CNTs nanofillers on mechanical properties, degradation and antibacterial behavior of Mg-based composite. J Mech Behav Biomed Mater 2023; 138:105601. [PMID: 36493612 DOI: 10.1016/j.jmbbm.2022.105601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022]
Abstract
Magnesium (Mg)-based composites, as one group of the biodegradable materials, enjoy high biodegradability, biocompatibility, and non-toxicity making them a great option for implant applications. In this paper, by the semi powder metallurgy (SPM) technique, the graphene nano-platelets (GNPs) and carbon nanotubes (CNTs) nanosystems, as reinforcements, are dispersed homogenously in the Mg-Zn (MZ) alloy matrix. Subsequently, the composite is successfully produced employing the spark plasma sintering (SPS) process. Compared to the unreinforced MZ sample, GNPs + CNTs mixture reinforced composite exhibits higher compressive strength (∼75%). Notably, adding only 1 wt % of GNPs + CNTs to the MZ matrix reduces the rate of the degradation in the Mg-based composite by almost 2- fold. Examining the antibacterial activity demonstrate that the incorporation of GNPs + CNTs into the Mg-based matrix is likely to prevent the infiltration and development of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) significantly. While the MTT with 0.5 and 1 wt % GNPs + CNTs does not demonstrate cytotoxicity to the MG63 cells, the excessive GNPs + CNTs results in a certain degree of poisonousness. In general, the findings of the present research attest to the viable application of MZ/GNPs + CNTs composites for implants as well as bone infection treatment.
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Sohail M, Ullah R, Khan SU, Bilal S, Omer M, Ullah I, Adnan. Toward the Development of Novel Poly(o-toluidine)-Based Metal Composite Materials: Structural, Optical and Electrochemical Performance. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-07563-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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5
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Hadidi N, Mohebbi M. Anti-Infective and Toxicity Properties of Carbon Based Materials: Graphene and Functionalized Carbon Nanotubes. Microorganisms 2022; 10:microorganisms10122439. [PMID: 36557692 PMCID: PMC9784703 DOI: 10.3390/microorganisms10122439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Recently, antimicrobial activities of various carbon-based nanomaterials against specific pathogens have become one of the most significant research interests in this field. Carbon nanotubes (CNTs) are promising multidisciplinary nanostructures in biomedicine, drug delivery, genetic engineering, biosensors, and artificial implants. However, the biomedical administration of CNTs is dependent on their solubility, toxicity, and biocompatibility, as well as novel drug-delivery applications through optimization of the drug's loading capacity, cellular absorption, and continuous release within the target cell. The usage of CNTs and Graphene materials as antimicrobial agents and nanocarriers for antibiotics delivery would possibly improve their bioavailability and facilitate better anti-infective therapy. However, it is worth mentioning that CNTs' antimicrobial activity and toxicity are highly dependent on their preparation and synthesis method. Various types of research have confirmed that diameter, length, residual catalyst, metal content, surface coating, electronic structure, and dispersibility would affect CNTs' toxicity toward bacteria and human cells. In this review article, a general study was performed on the antimicrobial properties of carbon-based nanomaterials, as well as their toxicity and applications in confronting different microorganisms. This study could be useful for researchers who are looking for new and effective drug delivery methods in the field of microbial resistance.
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Improving the optical, dielectric properties and antimicrobial activity of Chitosan–PEO by GO/MWCNTs: Nanocomposites for energy storage and food packaging applications. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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7
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Marwani HM, Ahmed J, Rahman MM. Development of a Toxic Lead Ionic Sensor Using Carboxyl-Functionalized MWCNTs in Real Water Sample Analyses. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22228976. [PMID: 36433572 PMCID: PMC9693170 DOI: 10.3390/s22228976] [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: 10/21/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 06/09/2023]
Abstract
Functional multiwall carbon nanotubes (f-MWCNTs) are of significant interest due to their dispersion ability in the aqueous phase and potential application in environmental, nanotechnology, and biological fields. Herein, we functionalized MWCNTs by a simple acid treatment under ultra-sonification, which represented a terminal or side-functional improvement for the fabrication of a toxic lead ion sensor. The f-MWCNTs were characterized in detail by XRD, Raman, XPS, BET, UV/vis, FTIR, and FESEM-coupled XEDS techniques. The analytical performance of the f-MWCNTs was studied for the selective detection of toxic lead ions by inductively coupled plasma-optical emission spectrometry (ICP-OES). The selectivity of the f-MWCNTs was evaluated using several metal ions such as Cd2+, Co2+, Cr3+, Cu2+, Fe3+, Ni2+, Pb2+, and Zn2+ ions. Lastly, the newly designed ionic sensor was successfully employed to selectively detect lead ions in several environmental water samples with reasonable results. This approach introduced a new technique for the selective detection of heavy metal ions using functional carbon nanotubes with ICP-OES for the safety of environmental and healthcare fields on a broad scale.
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Affiliation(s)
- Hadi M. Marwani
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Jahir Ahmed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Mohammed M. Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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8
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Simultaneous toxic Cd(II) and Pb(II) encapsulation from contaminated water using Mg/Al-LDH composite materials. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Safdar M, Kim W, Park S, Gwon Y, Kim YO, Kim J. Engineering plants with carbon nanotubes: a sustainable agriculture approach. J Nanobiotechnology 2022; 20:275. [PMID: 35701848 PMCID: PMC9195285 DOI: 10.1186/s12951-022-01483-w] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/25/2022] [Indexed: 01/12/2023] Open
Abstract
Sustainable agriculture is an important conception to meet the growing food demand of the global population. The increased need for adequate and safe food, as well as the ongoing ecological destruction associated with conventional agriculture practices are key global challenges. Nanomaterials are being developed in the agriculture sector to improve the growth and protection of crops. Among the various engineered nanomaterials, carbon nanotubes (CNTs) are one of the most promising carbon-based nanomaterials owing to their attractive physiochemical properties such as small size, high surface area, and superior mechanical and thermal strength, offering better opportunities for agriculture sector applications. This review provides basic information about CNTs, including their history; classification; and electrical, thermal, and mechanical properties, with a focus on their applications in the agriculture field. Furthermore, the mechanisms of the uptake and translocation of CNTs in plants and their defense mechanisms against environmental stresses are discussed. Finally, the major shortcomings, threats, and challenges of CNTs are assessed to provide a broad and clear view of the potential and future directions for CNT-based agriculture applications to achieve the goal of sustainability.
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Affiliation(s)
- Mahpara Safdar
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Woochan Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Sunho Park
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yonghyun Gwon
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.,Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yeon-Ok Kim
- Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea.
| | - Jangho Kim
- Department of Convergence Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea. .,Department of Rural and Biosystems Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea. .,Interdisciplinary Program in IT-Bio Convergence System, Chonnam National University, Gwangju, 61186, Republic of Korea.
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10
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o-Toluidine in electrochemistry – an overview. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05128-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe substituted aromatic amine o-toluidine (2-methylaniline, 1-amino-2-methylbenzene) is frequently encountered in electrochemical research as a soluble corrosion inhibitor dissolved in aqueous media used e.g., in cooling systems, as a homomonomer for formation of intrinsically conducting poly-o-toluidine and as a comonomer in formation of respective copolymers and their composites. The obtained polymers are suggested as corrosion protection coatings, as active materials in devices for electrochemical energy storage, but more frequently, they are examined as active components in electrochemical sensors.The significant and pronounced carcinogenicity of o-toluidine has hardly been addressed; presumably, most researchers are not even aware of this property. After a brief summary of the health risks and effects, the following overview presents typical examples of said studies and applications. If possible, substitutes with lower health risks are proposed, at least further studies enabling such replacement are suggested.
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11
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Carbon Nanotubes-Based Hydrogels for Bacterial Eradiation and Wound-Healing Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11209550] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Biocompatible nanomaterials have attracted enormous interest for biomedical applications. Carbonaceous materials, including carbon nanotubes (CNTs), have been widely explored in wound healing and other applications because of their superior physicochemical and potential biomedical properties to the nanoscale level. CNTs-based hydrogels are widely used for wound-healing and antibacterial applications. CNTs-based materials exhibited improved antimicrobial, antibacterial, adhesive, antioxidants, and mechanical properties, which are beneficial for the wound-healing process. This review concisely discussed the preparation of CNTs-based hydrogels and their antibacterial and wound-healing applications. The conductive potential of CNTs and their derivatives is discussed. It has been observed that the conductivity of CNTs is profoundly affected by their structure, temperature, and functionalization. CNTs properties can be easily modified by surface functionalization. CNTs-based composite hydrogels demonstrated superior antibacterial potential to corresponding pure polymer hydrogels. The accelerated wound healing was observed with CNTs-based hydrogels.
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12
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González-García Y, Cadenas-Pliego G, Alpuche-Solís ÁG, Cabrera RI, Juárez-Maldonado A. Carbon Nanotubes Decrease the Negative Impact of Alternaria solani in Tomato Crop. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1080. [PMID: 33922093 PMCID: PMC8143504 DOI: 10.3390/nano11051080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 12/17/2022]
Abstract
The diseases that attack the tomato crop are a limiting factor for its production and are difficult to control or eradicate. Stem and fruit rot and leaf blight caused by Alternaria solani causes severe damage and substantial yield losses. Carbon nanotubes (CNTs) could be an alternative for the control of pathogens since they have strong antimicrobial activity, in addition to inducing the activation of the antioxidant defense system in plants. In the present study, multi-walled carbon nanotubes were evaluated on the incidence and severity of A. solani. Moreover, to the impact they have on the antioxidant defense system and the photosynthetic capacity of the tomato crop. The results show that the application of CNTs had multiple positive effects on tomato crop. CNTs decreased the incidence and severity of A. solani. Furthermore, CNTs increased the fruit yield of tomato crop and dry shoot biomass. The antioxidant system was improved, since the content of ascorbic acid, flavonoids, and the activity of the glutathione peroxidase enzyme were increased. The net photosynthesis and water use efficiency were also increased by the application of CNTs. CNTs can be an option to control A. solani in tomato crop, and diminish the negative impact of this pathogen.
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Affiliation(s)
- Yolanda González-García
- Doctorado en Ciencias en Agricultura Protegida, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, Mexico;
| | | | - Ángel Gabriel Alpuche-Solís
- Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí 78216, San Luis Potosí, Mexico;
| | - Raúl Iskander Cabrera
- Department of Plant Biology, Rutgers Agricultural Research and Extension Center (RAREC), Rutgers University, Bridgeton, NJ 08302, USA;
| | - Antonio Juárez-Maldonado
- Departamento de Botánica, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, Mexico
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Zeeshan M, Ahmad R, Khan AA, Parwaz Khan AA, Bazan GC, Alhogbi BG, Marwani HM, Singh S. Fabrication of a lead ion selective membrane based on a polycarbazole Sn(iv) arsenotungstate nanocomposite and its ion exchange membrane (IEM) kinetic studies. RSC Adv 2021; 11:4210-4220. [PMID: 35424370 PMCID: PMC8694364 DOI: 10.1039/d0ra07534e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 12/17/2020] [Indexed: 12/21/2022] Open
Abstract
A polycarbazole-Sn(iv) arsenotungstate (Pcz-SnAT) nanocomposite cation exchanger membrane (CEM) was prepared via the casting solution technique utilizing polycarbazole-Sn(iv) arsenotungstate and PVC (polyvinyl chloride) as a binder. The synthesis of the Pcz-SnAT membrane was confirmed via various characterization methods such as EDX, SEM, TGA, XRD, and FTIR spectroscopy. This membrane having a 4.5 : 1 composition ratio of composite by PVC exhibited the most effective outcomes for swelling, thickness, porosity, and water content. Our research indicates that the present ion selective membrane electrode is selective towards Pb(ii) ions, with the detection limit ranging from 1 × 10-7 mol L-1 to 1 × 10-1 mol L-1 where 20 s is the response time and 3-7 is the working value pH. The mechanism of the Pcz SnAT ion exchange membrane was obtained by kinetic studies by utilizing the equation given by Nernst Planck at 40-80 °C. As a result, activation energy and thermodynamic studies were done. The analytical utility of this electrode is conventional by utilizing it as an electrode indicator within the potentiometric titration.
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Affiliation(s)
- Mohd Zeeshan
- Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University Aligarh 202002 India
| | - Rais Ahmad
- Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University Aligarh 202002 India
| | - Asif Ali Khan
- Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University Aligarh 202002 India
| | - Aftab Aslam Parwaz Khan
- Center of Excellence for Advanced Materials Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Chemistry Department, King Abdulaziz University Jeddah-21589 Saudi Arabia
| | - Guillermo C Bazan
- Department of Materials and Chemistry & Biochemistry, University of California Santa Barbara CA 93106, USA
| | | | - Hadi M Marwani
- Center of Excellence for Advanced Materials Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
- Chemistry Department, King Abdulaziz University Jeddah-21589 Saudi Arabia
| | - Sakshi Singh
- Department of Chemistry, Amity School of Engineering and Technology, Amity University Gwalior Madhya Pradesh India
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Azizi-Lalabadi M, Hashemi H, Feng J, Jafari SM. Carbon nanomaterials against pathogens; the antimicrobial activity of carbon nanotubes, graphene/graphene oxide, fullerenes, and their nanocomposites. Adv Colloid Interface Sci 2020; 284:102250. [PMID: 32966964 DOI: 10.1016/j.cis.2020.102250] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023]
Abstract
Recently, antibiotic resistance of pathogens has grown given the excessive and inappropriate usage of common antimicrobial agents. Hence, producing novel antimicrobial compounds is a necessity. Carbon nanomaterials (CNMs) such as carbon nanotubes, graphene/graphene oxide, and fullerenes, as an emerging class of novel materials, can exhibit a considerable antimicrobial activity, especially in the nanocomposite forms suitable for different fields including biomedical and food applications. These nanomaterials have attracted a great deal of interest due to their broad efficiency and novel features. The most important factor affecting the antimicrobial activity of CNMs is their size. Smaller particles with a higher surface to volume ratio can easily attach onto the microbial cells and affect their cell membrane integrity, metabolic procedures, and structural components. As these unique characteristics are found in CNMs, a wide range of possibilities have raised in terms of antimicrobial applications. This study aims to cover the antimicrobial activities of CNMs (both as individual forms and in nanocomposites) and comprehensively explain their mechanisms of action. The results of this review will present a broad perspective, summarizes the most remarkable findings, and provides an outlook regarding the antimicrobial properties of CNMs and their potential applications.
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Zeeshan M, Ahmad R, Khan AAP, Khan AA, Singh S. Potentiometric titration studies of poly(aniline-co-pyrrole)-Sn(IV)tungstoarsenate composite cation exchange membrane and their application as a Ni(II) selective electrode. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1614945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mohd Zeeshan
- Environmental Research Laboratory, Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University , Aligarh , India
- Analytical and Polymer Research Laboratory, Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University , Aligarh , India
| | - Rais Ahmad
- Environmental Research Laboratory, Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University , Aligarh , India
| | - Aftab Aslam Parwaz Khan
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science, King Abdulaziz University , Jeddah , Saudi Arabia
| | - Asif Ali Khan
- Analytical and Polymer Research Laboratory, Department of Applied Chemistry, F/O Engineering and Technology, Aligarh Muslim University , Aligarh , India
| | - Sakshi Singh
- Department of Chemistry, Amity School of Engineering and Technology, Amity University , Madhya Pradesh , Gwalior , India
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Alqarni SA, Hussein MA, Ganash AA, Khan A. Composite Material–Based Conducting Polymers for Electrochemical Sensor Applications: a Mini Review. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-019-00708-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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17
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Rahman MM, Alamry KA, Awual MR, Mekky AE. Efficient Hg(II) ionic probe development based on one-step synthesized diethyl thieno[2,3-b]thiophene-2,5-dicarboxylate (DETTDC2) onto glassy carbon electrode. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104291] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Rahman MM, Hussain MM, Arshad MN, Asiri AM. The synthesis and application of (E)-N′-(benzo[d]dioxol-5-ylmethylene)-4-methyl-benzenesulfonohydrazide for the detection of carcinogenic lead. RSC Adv 2020; 10:5316-5327. [PMID: 35498306 PMCID: PMC9049008 DOI: 10.1039/c9ra09080k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/26/2019] [Indexed: 11/21/2022] Open
Abstract
A sensitive cationic sensor was developed by BDMMBSH onto GCE with 5% Nafion using electrochemical method, which was validated with the selective determination of Pb2+ in spiked samples and found satisfactory results.
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | | | | | - Abdullah M. Asiri
- Chemistry Department
- Faculty of Science
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
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19
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Determination of Heavy Metals in Herbal Food Supplements using Bismuth/Multi-walled Carbon Nanotubes/Nafion modified Graphite Electrodes sourced from Waste Batteries. Sci Rep 2019; 9:18491. [PMID: 31811219 PMCID: PMC6898606 DOI: 10.1038/s41598-019-54589-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 11/15/2019] [Indexed: 11/28/2022] Open
Abstract
An electrochemical sensor based on graphite electrode extracted from waste zinc-carbon battery is developed. The graphite electrode was modified with bismuth nanoparticles (BiNP), multi-walled carbon nanotubes (MWCNT) and Nafion via the drop coating method. The bare and modified graphite electrodes were used as the working electrode in anodic stripping voltammetry for the determination of trace amounts of cadmium (Cd2+) and lead (Pb2+). The modified electrode exhibited excellent electroanalytical performance for heavy metal detection in comparison with the bare graphite electrode. The linear concentration range from 5 parts per billion (ppb) to 1000 ppb (R2 = 0.996), as well as detection limits of 1.06 ppb for Cd2+ and 0.72 ppb for Pb2+ were obtained at optimized experimental conditions and parameters. The sensor was successfully utilized for the quantification of Cd2+ and Pb2+ in herbal food supplement samples with good agreement to the results obtained by atomic absorption spectroscopy. Thus, the BiNP/MWCNT/Nafion modified graphite electrode is a cost-effective and environment-friendly sensor for monitoring heavy metal contamination.
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20
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Katowah DF, Hussein MA, Alam MM, Gabal MA, Sobahi TR, Asiri AM, Uddin J, Rahman MM. Selective Fabrication of an Electrochemical Sensor for Pb
2+
Based on Poly(pyrrole‐co‐
o–
toluidine)/CoFe
2
O
4
Nanocomposites. ChemistrySelect 2019. [DOI: 10.1002/slct.201902714] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Dina F. Katowah
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Polymer chemistry Lab.Chemistry DepartmentFaculty of ScienceAssiut University Assiut 71516 Egypt
| | - M. M. Alam
- Department of Chemical Engineering and Polymer ScienceShahjalal University of Science and Technology Sylhet 3100 Bangladesh
| | - M. A. Gabal
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Chemistry DepartmentFaculty of ScienceBenha University, Benha Egypt
| | - T. R. Sobahi
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Jamal Uddin
- Center for NanotechnologyDepartment of Natural SciencesCoppin State University 2500 W. N. Ave Baltimore, MD USA
| | - Mohammed M. Rahman
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
- Center of Excellence for Advanced Materials Research (CEAMR)King Abdulaziz University Jeddah 21589 Saudi Arabia
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21
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Devi TB, Mohanta D, Ahmaruzzaman M. Biomass derived activated carbon loaded silver nanoparticles: An effective nanocomposites for enhanced solar photocatalysis and antimicrobial activities. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Aqlan FM, Alam M, Asiri AM, Zayed ME, Al-Eryani DA, Al-Zahrani FA, El-Shishtawy RM, Uddin J, Rahman MM. Fabrication of selective and sensitive Pb2+ detection by 2,2′-(−(1,2-phenylenebis(azaneylylidene))bis(methaneylylidene))diphenol by electrochemical approach for environmental remediation. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.109] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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23
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Khan AAP, Khan A, Alam M, Asiri AM, Uddin J, Rahman MM. SDBS-functionalized MWCNT/poly(o-toluidine) nanowires modified glassy carbon electrode as a selective sensing platform for Ce3+ in real samples. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.159] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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24
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Zuo Y, Xu J, Zhu X, Duan X, Lu L, Yu Y. Graphene-derived nanomaterials as recognition elements for electrochemical determination of heavy metal ions: a review. Mikrochim Acta 2019; 186:171. [PMID: 30756239 DOI: 10.1007/s00604-019-3248-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/05/2019] [Indexed: 10/27/2022]
Abstract
This review (with 155 refs.) summarizes the progress made in the past few years in the field of electrochemical sensors based on graphene-derived materials for the determination of heavy metal ions. Following an introduction of this field and a discussion of the various kinds of modified graphenes including graphene oxide and reduced graphene oxide, the review covers graphene based electrodes modified (or doped) with (a) heteroatoms, (b) metal nanoparticles, (c) metal oxides, (d) small organic molecules, (e) polymers, and (f) ternary nanocomposites. Tables are provided that afford an overview of representative methods and materials for fabricating electrochemical sensors. Furthermore, sensing mechanisms are discussed. A concluding section presents new perspectives, opportunities and current challenges. Graphical Abstract Schematic illustration of electrochemical sensor for heavy metal ion sensing based on heteroatom-doped graphene, metal-modified graphene, metal-oxide-modified graphene, organically modified graphene, polymer-modified graphene, and ternary graphene based nanocomposites.
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Affiliation(s)
- Yinxiu Zuo
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, Jiangxi, China.,Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Science, Jiangxi Agricultural University, Nanchang, Nanchang, 330045, China
| | - Jingkun Xu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, Jiangxi, China.,School of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China
| | - Xiaofei Zhu
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, Jiangxi, China
| | - Xuemin Duan
- Jiangxi Provincial Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang, 330013, Jiangxi, China.
| | - Limin Lu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Science, Jiangxi Agricultural University, Nanchang, Nanchang, 330045, China.
| | - Yongfang Yu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Science, Jiangxi Agricultural University, Nanchang, Nanchang, 330045, China
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25
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Khan AAP, Khan A, Alam MA, Oves M, Asiri AM, Rahman MM. Chemical sensing platform for the Zn +2 ions based on poly(o-anisidine-co-methyl anthranilate) copolymer composites and their environmental remediation in real samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27899-27911. [PMID: 30056544 DOI: 10.1007/s11356-018-2819-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
A novel nanostructure of poly(o-anisidine-co-methyl anthranilate) (poly(Ani-Co-MA) copolymer has been synthesized by chemical oxidative in situ polymerization technique with equal molar proportion of monomers in the presence of sodium dodecylbenzene sulfonic acid (SDBS) surfactant. The synthesized copolymers were characterized by scanning electron microscope (SEM) and X-ray crystallography (XRD), Fourier transform infrared (FTIR), UV-Vis, thermo-gravimetric analysis (TGA), and simultaneous X-ray photoelectron spectroscopy (XPS) study. The ultraviolet visible spectrum shows the π to π∗ transition and n to π∗ transition. XRD diffraction pattern confirms the amorphous nature of poly(Ani-Co-MA)-SDBS composites. The scanning electron microscope image shows the morphology of the copolymer matrix. For the selective detection of Zn+2 cation in neutral phosphate buffer, it was fabricated Zn+2 cation sensor based on glassy carbon electrode (GCE) coated with poly(Ani-co-MA)-SDBS composites as a thin layer with conducting coating binders. The proposed cation sensor has been found to exhibit the inertness in air and chemical environment, long-term stability with good sensitivity, a broad linear dynamic range practically, a reliable reproducibility, short response time, and high electrochemical activity. The sensitivity (0.3560 μA μM-1 cm-2) of Zn+2 cation sensor has been calculated from the slope of the calibration curve. The linearity of the calibration curve is found over the linear dynamic range (LDR) 0.1 nM~0.01 M, and detection limit (DL) is 27.0 ± 1.35 pM at the signal to noise ratio of 3. This novel effort may be considered quite reliable and effective to detect Zn+2 cation in environmental and biomedical sectors on a broad scale. Simultaneously, SDBS doped poly(o-anisidine-co-methyl anthranilate) copolymer composites were measured against medically important organisms Escherichia coli. E. ludwigi, and Bacillus subtilis. Graphical abstract ᅟ.
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Affiliation(s)
- Aftab Aslam Parwaz Khan
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
| | - Anish Khan
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - M A Alam
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3100, Bangladesh
| | - Mohammad Oves
- Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Abdullah M Asiri
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21589, Saudi Arabia.
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26
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T. P, N. D, N. T. Electrochemical behavior of Pb (II) on a heparin modified chitosan/graphene nanocomposite film coated glassy carbon electrode and its sensitive detection. Int J Biol Macromol 2017. [DOI: 10.1016/j.ijbiomac.2017.06.082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Preparation and application of nanocomposite based on imprinted poly(methacrylic acid)-PAN/MWCNT as a new electrochemical selective sensing platform of Pb2+ in water samples. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.07.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Voltammetric determination of lead(II) by using exonuclease III and gold nanoparticles, and by exploiting the conformational change of the complementary strand of an aptamer. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2316-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Li S, He M, Li Z, Li D, Pan Z. Removal of humic acid from aqueous solution by magnetic multi-walled carbon nanotubes decorated with calcium. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.01.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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30
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Hussain M, Rahman MM, Arshad MN, Asiri AM. Hg 2+ Sensor Development Based on ( E)- N'-Nitrobenzylidene-Benzenesulfonohydrazide (NBBSH) Derivatives Fabricated on a Glassy Carbon Electrode with a Nafion Matrix. ACS OMEGA 2017; 2:420-431. [PMID: 31457448 PMCID: PMC6641063 DOI: 10.1021/acsomega.6b00359] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/25/2017] [Indexed: 05/05/2023]
Abstract
Three novel derivatives of (E)-N'-nitrobenzylidene-benzenesulfonohydrazide (NBBSH) were synthesized by a condensation method from nitrobenzaldehyde and benzenesulfonylhydrazine reactants in low to moderate yields, which crystallized in methanol, acetone, ethyl acetate, and ethanol. NBBSH derivatives were totally characterized using various spectroscopic techniques, such as Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, proton nuclear magnetic resonance spectroscopy (1H NMR), and carbon-13 nuclear magnetic resonance (13C NMR) spectroscopy. The molecular structure of the NBBSH derivates was confirmed by the single crystal X-ray diffraction method and used for potential detection of a selective heavy metal ion, mercury (Hg2+), by a reliable I-V method. A thin coating of NBBSH derivatives was deposited on a glassy carbon electrode (surface area = 0.0316 cm2) with a binder (nafion) coating to modify a sensitive and selective Hg2+ sensor with a short response time in phosphate buffer. The modified cationic sensor exhibited enhanced chemical performances, such as higher sensitivity, linear dynamic range, limit of detection (LOD), reproducibility, and long-term stability toward Hg2+. The calibration curve was found to be linear over a wide range of Hg2+ concentrations (100.0 pM-100.0 mM). The sensitivity and LOD were considered to be ∼949.0 pA μM-1cm-2 and 10.0 ± 1.0 pM (S/N = 3), respectively. The sensor was applied to the selective measurement of Hg2+ in spiked water samples to give acceptable and satisfactory results.
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31
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Sensor development of 1,2 Dichlorobenzene based on polypyrole/Cu-doped ZnO (PPY/CZO) nanocomposite embedded silver electrode and their antimicrobial studies. Int J Biol Macromol 2017; 98:256-267. [PMID: 28163125 DOI: 10.1016/j.ijbiomac.2017.02.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/23/2017] [Accepted: 02/01/2017] [Indexed: 01/14/2023]
Abstract
Cu-doped ZnO nanopowders and their composites of polypyrole (PPY)/CZO were prepared by a gel combustion method and an in-situ polymerization process, respectively. The synthesized nanocomposite are characterized by X-ray powder diffractometry (XRD), scanning electron microscopy (SEM), FTIR, and TGA studies. Then the PPY/CZO/AgE nanocomposites were used for potential application in chemical sensing by easy and reliable I-V method, where 1,2 dichlorobenzene (1,2-DCB) is considered as a model target compound. The chemical sensor performances are exhibited the higher sensitivity, good stability, and repeatability of the sensor enhanced significantly using PPY/CZO/AgE of thin-film with conducting binders on silver electrodes (AgE; Surface area: 0.0216cm2). The calibration plot is linear over the large dynamic range (0.35nM∼3.5mM), where the sensitivity (∼2.702μAmM-1cm-2) and detection limit (∼0.34nM) is calculated based on signal/noise ratio (∼3N/S) in short response time. Finally, it is concluded that the structural and optical characteristics could be encompassed to a broad-scale in PPY/CZO/AgE composites and efficient chemical sensor applications for environmental fields. Simultaneously PPY/CZO composites was also evaluated against Gram positive bacteria Bacillus subtilis, Gram negative bacteria Escherichia coli and antibiotics (Amoxicillin) using the agar plate.
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32
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Hao XP, Chen SG, Wang WH, Yang ZQ, Yue LF, Sun HY, Cheng F. AgNP-coordinated glucosamine-grafted carbon nanotubes with enhanced antibacterial properties. NEW J CHEM 2017. [DOI: 10.1039/c7nj01199g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After glucosamine is coated on MWCNTs, the bonding force between the AgNPs and MWCNT–glucosamine increases because the charge of the O atom changes.
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Affiliation(s)
- X. P. Hao
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - S. G. Chen
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - W. H. Wang
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - Z. Q. Yang
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - L. F. Yue
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - H. Y. Sun
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
| | - F. Cheng
- Institute of Materials Science and Engineering
- Ocean University of China
- Qingdao
- China
- University of Calgary
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