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Pradhan SR, Prasad CK, Das M, Srinivasan A. De novo fabrication of higher arene ring incorporated contorted calix[2]phyrin(2.2. 1. 1. 1) and its F - bound complex. Dalton Trans 2024; 53:15258-15263. [PMID: 39222023 DOI: 10.1039/d4dt01903b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The rational design and synthesis of a novel contorted calix[2]phyrin(2.2.1.1.1) structure has been achieved, utilizing a terphenyl unit as a key building component. This terphenyl unit serves as a segment of the armchair periphery in a π-extended two-dimensional architecture. The resulting molecule exhibits remarkable properties, including the ability to self-assemble into solid-state supramolecular nanotubes. Additionally, it has demonstrated an affinity for complexation with fluoride anions, highlighting its potential for applications in molecular recognition and sensor technology. The incorporation of the terphenyl unit not only enhances the structural rigidity but also contributes to the unique electronic characteristics of the calix[2]phyrin.
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Affiliation(s)
- Sourav Ranjan Pradhan
- National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, Odisha, India.
| | - Chetan Kumar Prasad
- National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, Odisha, India.
| | - Mainak Das
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
| | - A Srinivasan
- National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, Odisha, India.
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2
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Semenov KN, Shemchuk OS, Ageev SV, Andoskin PA, Iurev GO, Murin IV, Kozhukhov PK, Maystrenko DN, Molchanov OE, Kholmurodova DK, Rizaev JA, Sharoyko VV. Development of Graphene-Based Materials with the Targeted Action for Cancer Theranostics. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:1362-1391. [PMID: 39245451 DOI: 10.1134/s0006297924080029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/11/2024] [Accepted: 07/13/2024] [Indexed: 09/10/2024]
Abstract
The review summarises the prospects in the application of graphene and graphene-based nanomaterials (GBNs) in nanomedicine, including drug delivery, photothermal and photodynamic therapy, and theranostics in cancer treatment. The application of GBNs in various areas of science and medicine is due to the unique properties of graphene allowing the development of novel ground-breaking biomedical applications. The review describes current approaches to the production of new targeting graphene-based biomedical agents for the chemotherapy, photothermal therapy, and photodynamic therapy of tumors. Analysis of publications and FDA databases showed that despite numerous clinical studies of graphene-based materials conducted worldwide, there is a lack of information on the clinical trials on the use of graphene-based conjugates for the targeted drug delivery and diagnostics. The review will be helpful for researchers working in development of carbon nanostructures, material science, medicinal chemistry, and nanobiomedicine.
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Affiliation(s)
- Konstantin N Semenov
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia.
- Saint Petersburg State University, Saint Petersburg, 199034, Russia
- Granov Russian Research Centre for Radiology and Surgical Technologies, Saint Petersburg, 197758, Russia
| | - Olga S Shemchuk
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia
- Saint Petersburg State University, Saint Petersburg, 199034, Russia
| | - Sergei V Ageev
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia
- Saint Petersburg State University, Saint Petersburg, 199034, Russia
| | - Pavel A Andoskin
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia
| | - Gleb O Iurev
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia
| | - Igor V Murin
- Saint Petersburg State University, Saint Petersburg, 199034, Russia
| | | | - Dmitriy N Maystrenko
- Granov Russian Research Centre for Radiology and Surgical Technologies, Saint Petersburg, 197758, Russia
| | - Oleg E Molchanov
- Granov Russian Research Centre for Radiology and Surgical Technologies, Saint Petersburg, 197758, Russia
| | | | - Jasur A Rizaev
- Samarkand Medical University, Samarkand, 100400, Uzbekistan
| | - Vladimir V Sharoyko
- Pavlov First Saint Petersburg State Medical University, Saint Petersburg, 197022, Russia.
- Saint Petersburg State University, Saint Petersburg, 199034, Russia
- Granov Russian Research Centre for Radiology and Surgical Technologies, Saint Petersburg, 197758, Russia
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3
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Hoat DM, Ponce-Pérez R, Ha CV, Guerrero-Sanchez J. Controlling the electronic and magnetic properties of the GeAs monolayer by generating Ge vacancies and doping with transition-metal atoms. NANOSCALE ADVANCES 2024; 6:3602-3611. [PMID: 38989525 PMCID: PMC11232550 DOI: 10.1039/d4na00235k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/20/2024] [Indexed: 07/12/2024]
Abstract
Controlling the electronic and magnetic properties of two-dimensional (2D) materials is a key step to make new multifunctional candidates for practical applications. In this work, defects and doping with transition metals (TMs = V, Cr, Mn, and Fe) at Ge sublattices are proposed in order to develop novel features in the hexagonal germanium arsenide (GeAs) monolayer. The pristine GeAs monolayer is a non-magnetic indirect gap semiconductor with an energy gap of 1.20(1.82) eV as provided by PBE(HSE06)-based calculations. A single Ge vacancy metallizes the monolayer, preserving its non-magnetic nature. In contrast, significant magnetization with a total magnetic moment of 1.96 μ B is achieved by a pair of Ge vacancies. Herein, the computed band structures assert the half-metallic behavior of the defective system. Similarly, half-metallicity is also obtained by V, Mn, and Fe doping. Meanwhile, the Cr-doped GeAs monolayer is classified as a diluted magnetic semiconductor 2D system. In these cases, magnetic properties are produced mainly by TM-3d electrons with total magnetic moments between 2.00 and 4.00 μ B. Further, the effects of substituting a pair of Ge atoms with a pair of TM atoms (pTMGe systems) are also investigated. Results indicate the ferromagnetic half-metallicity of the pVGe system, meanwhile antiferromagnetic ordering is stable in the remaining cases. In all cases, TM impurities transfer charge to the host GeAs monolayer since they are surrounded by As atoms, which are more electronegative than dopant atoms. Results presented herein may introduce new 2D systems - made from the non-magnetic GeAs monolayer - for spintronic applications with suitable electronic and magnetic features controlled mainly by transition metals.
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Affiliation(s)
- D M Hoat
- Institute of Theoretical and Applied Research, Duy Tan University Ha Noi 100000 Vietnam
- Faculty of Natural Sciences, Duy Tan University Da Nang 550000 Vietnam
| | - R Ponce-Pérez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología Apartado Postal 14 Ensenada Baja California Código Postal 22800 Mexico
| | - Chu Viet Ha
- Faculty of Physics, TNU-University of Education Thai Nguyen 250000 Vietnam
| | - J Guerrero-Sanchez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología Apartado Postal 14 Ensenada Baja California Código Postal 22800 Mexico
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Karmakar M, Sadaf S, Ghoroi C. pH-Responsive Biocompatible Fluorescent Hydrogel for Selective Sensing and Adsorptive Recovery of Dysprosium. ACS OMEGA 2024; 9:29620-29632. [PMID: 39005826 PMCID: PMC11238204 DOI: 10.1021/acsomega.4c02772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 07/16/2024]
Abstract
The elevated accumulation of electronic wastes, especially containing Dysprosium ion [i.e., Dy(III)], is emerging as a potential environmental threat. To overcome the deleterious effects of Dy(III), detection and removal of Dy(III) is crucial. Moreover, recovery of high-value Dy(III) is economically beneficial. However, the availability of a single material, capable of sensing Dy(III) in nanomolar concentration and simultaneously adsorbing it with high adsorption capacity (AC), is rare. Therefore, to solve this problem, a pH-responsive fluorescent amino graphene oxide-impregnated-engineered polymer hydrogel (AGO-EPH) has been synthesized, suitable for selective sensing of Dy(III) in nanomolar concentration and adsorbing it from wastewater at ambient temperature. This terpolymeric hydrogel is synthesized from two nonfluorescent monomers, propenoic acid (PNA) and prop-2-enamide (PEAM), along with an in situ generated comonomer (3-acrylamidopropanoic acid/AAPPA) through N-H activation during polymerization. Surface properties and structural details of AGO-EPH are established using NMR, FTIR, XRD, TEM, SEM, EDX, Raman, MALDI-mass, and DLS studies. The AGO-EPH exhibits blue fluorescence with selective turn-off sensing of Dy(III) with the detection limit of 1.88 × 10-7 (M). The maximum AC of AGO-EPH is 41.97 ± 0.39 mg g-1. The developed AGO-EPH shows consistent adsorption-desorption property over five cycles, with more than 90% desorption efficiency per cycle, confirming significant recovery of the valuable Dy(III). From Logic gate calculations, complexation of Dy(III) and AGO-EPH may be the reason behind fluorescence quenching. The AGO-EPH also shows antibacterial action against ∼3 × 108 cells mL-1 of E. coli solution. Overall, the developed pH-responsive engineered hydrogel can be used as a potential low-cost sensing device and reusable adsorbent for Dy(III).
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Affiliation(s)
- Mrinmoy Karmakar
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
| | - Somya Sadaf
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
| | - Chinmay Ghoroi
- DryProTech Lab, Department of Chemical Engineering, Indian Institute of Technology-Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India
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Dilenko H, Bartoň Tománková K, Válková L, Hošíková B, Kolaříková M, Malina L, Bajgar R, Kolářová H. Graphene-Based Photodynamic Therapy and Overcoming Cancer Resistance Mechanisms: A Comprehensive Review. Int J Nanomedicine 2024; 19:5637-5680. [PMID: 38882538 PMCID: PMC11179671 DOI: 10.2147/ijn.s461300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/09/2024] [Indexed: 06/18/2024] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive therapy that has made significant progress in treating different diseases, including cancer, by utilizing new nanotechnology products such as graphene and its derivatives. Graphene-based materials have large surface area and photothermal effects thereby making them suitable candidates for PDT or photo-active drug carriers. The remarkable photophysical properties of graphene derivates facilitate the efficient generation of reactive oxygen species (ROS) upon light irradiation, which destroys cancer cells. Surface functionalization of graphene and its materials can also enhance their biocompatibility and anticancer activity. The paper delves into the distinct roles played by graphene-based materials in PDT such as photosensitizers (PS) and drug carriers while at the same time considers how these materials could be used to circumvent cancer resistance. This will provide readers with an extensive discussion of various pathways contributing to PDT inefficiency. Consequently, this comprehensive review underscores the vital roles that graphene and its derivatives may play in emerging PDT strategies for cancer treatment and other medical purposes. With a better comprehension of the current state of research and the existing challenges, the integration of graphene-based materials in PDT holds great promise for developing targeted, effective, and personalized cancer treatments.
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Affiliation(s)
- Hanna Dilenko
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Kateřina Bartoň Tománková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lucie Válková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Barbora Hošíková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Markéta Kolaříková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lukáš Malina
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Robert Bajgar
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Hana Kolářová
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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Narayan J, Bezborah K. Recent advances in the functionalization, substitutional doping and applications of graphene/graphene composite nanomaterials. RSC Adv 2024; 14:13413-13444. [PMID: 38660531 PMCID: PMC11041312 DOI: 10.1039/d3ra07072g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/01/2024] [Indexed: 04/26/2024] Open
Abstract
Recently, graphene and graphene-based nanomaterials have emerged as advanced carbon functional materials with specialized unique electronic, optical, mechanical, and chemical properties. These properties have made graphene an exceptional material for a wide range of promising applications in biological and non-biological fields. The present review illustrates the structural modifications of pristine graphene resulting in a wide variety of derivatives. The significance of substitutional doping with alkali-metals, alkaline earth metals, and III-VII group elements apart from the transition metals of the periodic table is discussed. The paper reviews various chemical and physical preparation routes of graphene, its derivatives and graphene-based nanocomposites at room and elevated temperatures in various solvents. The difficulty in dispersing it in water and organic solvents make it essential to functionalize graphene and its derivatives. Recent trends and advances are discussed at length. Controlled reduction reactions in the presence of various dopants leading to nanocomposites along with suitable surfactants essential to enhance its potential applications in the semiconductor industry and biological fields are discussed in detail.
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Affiliation(s)
- Jyoti Narayan
- Synthetic Nanochemistry Laboratory, Department of Basic Sciences & Social Sciences, (Chemistry Division) School of Technology, North Eastern Hill University Shillong 793022 Meghalaya India
| | - Kangkana Bezborah
- Synthetic Nanochemistry Laboratory, Department of Basic Sciences & Social Sciences, (Chemistry Division) School of Technology, North Eastern Hill University Shillong 793022 Meghalaya India
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Hu C, He G, Yang Y, Wang N, Zhang Y, Su Y, Zhao F, Wu J, Wang L, Lin Y, Shao L. Nanomaterials Regulate Bacterial Quorum Sensing: Applications, Mechanisms, and Optimization Strategies. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306070. [PMID: 38350718 PMCID: PMC11022734 DOI: 10.1002/advs.202306070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/19/2024] [Indexed: 02/15/2024]
Abstract
Anti-virulence therapy that interferes with bacterial communication, known as "quorum sensing (QS)", is a promising strategy for circumventing bacterial resistance. Using nanomaterials to regulate bacterial QS in anti-virulence therapy has attracted much attention, which is mainly attributed to unique physicochemical properties and excellent designability of nanomaterials. However, bacterial QS is a dynamic and multistep process, and there are significant differences in the specific regulatory mechanisms and related influencing factors of nanomaterials in different steps of the QS process. An in-depth understanding of the specific regulatory mechanisms and related influencing factors of nanomaterials in each step can significantly optimize QS regulatory activity and enhance the development of novel nanomaterials with better comprehensive performance. Therefore, this review focuses on the mechanisms by which nanomaterials regulate bacterial QS in the signal supply (including signal synthesis, secretion, and accumulation) and signal transduction cascade (including signal perception and response) processes. Moreover, based on the two key influencing factors (i.e., the nanomaterial itself and the environment), optimization strategies to enhance the QS regulatory activity are comprehensively summarized. Collectively, applying nanomaterials to regulate bacterial QS is a promising strategy for anti-virulence therapy. This review provides reference and inspiration for further research on the anti-virulence application of nanomaterials.
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Affiliation(s)
- Chen Hu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Guixin He
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yujun Yang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Ning Wang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yanli Zhang
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Yuan Su
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
- Stomatology CenterShunde HospitalSouthern Medical University (The First People's Hospital of Shunde)Foshan528399China
| | - Fujian Zhao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Junrong Wu
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
| | - Linlin Wang
- Hainan General Hospital·Hainan Affiliated Hospital of Hainan medical UniversityHaikou570311China
| | - Yuqing Lin
- Shenzhen Luohu People's HospitalShenzhen518000China
| | - Longquan Shao
- Stomatological Hospital, School of StomatologySouthern Medical UniversityGuangzhou510280China
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Gutiérrez-Pineda E, Subrati A, Rodríguez-Presa MJ, Gervasi CA, Moya SE. Electrochemical Exfoliation of Graphene Oxide: Unveiling Structural Properties and Electrochemical Performance. Chemistry 2023; 29:e202302450. [PMID: 37671633 DOI: 10.1002/chem.202302450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
An electrochemical exfoliation method for the production of graphene oxide and its characterization by electrochemical techniques are presented here. Graphite rods are used as working electrode in a three-electrode electrochemical cell, and electro-exfoliation is achieved by applying anodic polarization in a sulfuric acid solution. The electrochemical process involved two steps characterized by an intercalation at lower potential and an exfoliation at higher potential. The electrochemical behavior of the produced GO is studied through cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). X ray Photoelectronic Spectroscopy (XPS), Raman spectroscopy, Transmission Electron Microscopy (TEM), and Atomic Force Microscopy (AFM) are employed to characterize the structural and chemical properties of the exfoliated GO. The results demonstrate that the electrochemical exfoliation method yields GO materials with varying degrees of oxidation, defect density, and crystallite size, depending on the applied potential and acid concentration. The graphene oxide samples exhibited distinct electrochemical properties, including charge transfer resistance, interfacial capacitance, and relaxation times for the charge transfer, as revealed by CV and EIS measurements with a specifically selected redox probe. The comprehensive characterization performed provides valuable insights into the structure-property relationships of the GO materials synthesized through electrochemical exfoliation of graphite.
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Affiliation(s)
- Eduart Gutiérrez-Pineda
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
- Escuela de Ciencias Básicas, Tecnología e Ingeniería (ECBTI), Universidad Nacional Abierta y a Distancia (UNAD), 680001, Bucaramanga, Santander, Colombia
| | - Ahmed Subrati
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
| | - María José Rodríguez-Presa
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Claudio A Gervasi
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Universidad Nacional de La Plata - CONICET, Sucursal 4 Casilla de Correo 16, 1900, La Plata, Argentina
| | - Sergio E Moya
- Soft Matter Nanotechnology Group, CIC biomaGUNE, Paseo Miramon 182 C, 2009, San Sebastián, Guipúzcoa, Spain
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Rabchinskii MK, Besedina NA, Brzhezinskaya M, Stolyarova DY, Ryzhkov SA, Saveliev SD, Antonov GA, Baidakova MV, Pavlov SI, Kirilenko DA, Shvidchenko AV, Cherviakova PD, Brunkov PN. Graphene Amination towards Its Grafting by Antibodies for Biosensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111730. [PMID: 37299631 DOI: 10.3390/nano13111730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
The facile synthesis of biografted 2D derivatives complemented by a nuanced understanding of their properties are keystones for advancements in biosensing technologies. Herein, we thoroughly examine the feasibility of aminated graphene as a platform for the covalent conjugation of monoclonal antibodies towards human IgG immunoglobulins. Applying core-level spectroscopy methods, namely X-ray photoelectron and absorption spectroscopies, we delve into the chemistry and its effect on the electronic structure of the aminated graphene prior to and after the immobilization of monoclonal antibodies. Furthermore, the alterations in the morphology of the graphene layers upon the applied derivatization protocols are assessed by electron microscopy techniques. Chemiresistive biosensors composed of the aerosol-deposited layers of the aminated graphene with the conjugated antibodies are fabricated and tested, demonstrating a selective response towards IgM immunoglobulins with a limit of detection as low as 10 pg/mL. Taken together, these findings advance and outline graphene derivatives' application in biosensing as well as hint at the features of the alterations of graphene morphology and physics upon its functionalization and further covalent grafting by biomolecules.
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Affiliation(s)
| | - Nadezhda A Besedina
- Department of Physics, Alferov University, 8/3 Khlopina Street, Saint Petersburg 194021, Russia
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Dina Yu Stolyarova
- NRC "Kurchatov Institute", Akademika Kurchatova pl. 1, Moscow 123182, Russia
| | - Sergei A Ryzhkov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | | | - Grigorii A Antonov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Marina V Baidakova
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Sergei I Pavlov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | - Demid A Kirilenko
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
| | | | | | - Pavel N Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, Saint Petersburg 194021, Russia
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10
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Ponce-Pérez R, Guerrero-Sanchez J, Hoat DM. Half-metallic and magnetic semiconductor behavior in CdO monolayer induced by acceptor impurities. Phys Chem Chem Phys 2023; 25:14266-14273. [PMID: 37171208 DOI: 10.1039/d3cp01268a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
In this work, a doping approach is explored as a possible method to induce novel features in the CdO monolayer for spintronic applications. Monolayer CdO is a two-dimensional (2D) non-magnetic semiconductor material with a band gap of 0.82 eV. In monolayer CdO, a single Cd vacancy leads to magnetization of the monolayer with a total magnetic moment of -2μB, whereas its non-magnetic nature is preserved upon creating a single O vacancy. Doping the Cd sublattice with Cu-Ag and Au induces half-metallic character with a total magnetic moment of -1 and 1μB, respectively. Dopants and their neighboring O atoms produce mainly magnetic properties. By contrast, doping with N, P, and As at the O sublattice leads to the emergence of magnetic semiconductor behavior with a total magnetic moment of 1μB. Herein, magnetism originates mainly from the spin-asymmetric charge distribution in the outermost orbitals of the dopants. Bader charge analysis and charge density difference calculations indicate charge transfer from Cu, Ag and Au dopants to the host monolayer, whereas the N, P and As dopants exhibit important charge gains. These results suggest that doping with acceptor impurities is an efficient approach to functionalize the CdO monolayer to generate spin currents in spintronic devices.
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Affiliation(s)
- R Ponce-Pérez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Apartado Postal 14, Ensenada, Baja California, Código Postal 22800, Mexico
| | - J Guerrero-Sanchez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Apartado Postal 14, Ensenada, Baja California, Código Postal 22800, Mexico
| | - D M Hoat
- Institute of Theoretical and Applied Research, Duy Tan University, Ha Noi 100000, Vietnam.
- Faculty of Natural Sciences, Duy Tan University, Da Nang 550000, Vietnam
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11
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Borzooee Moghadam N, Avatefi M, Karimi M, Mahmoudifard M. Graphene family in cancer therapy: recent progress in cancer gene/drug delivery applications. J Mater Chem B 2023; 11:2568-2613. [PMID: 36883982 DOI: 10.1039/d2tb01858f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
In the past few years, the development in the construction and architecture of graphene based nanocomplexes has dramatically accelerated the use of nano-graphene for therapeutic and diagnostic purposes, fostering a new area of nano-cancer therapy. To be specific, nano-graphene is increasingly used in cancer therapy, where diagnosis and treatment are coupled to deal with the clinical difficulties and challenges of this lethal disease. As a distinct family of nanomaterials, graphene derivatives exhibit outstanding structural, mechanical, electrical, optical, and thermal capabilities. Concurrently, they can transport a wide variety of synthetic agents, including medicines and biomolecules, such as nucleic acid sequences (DNA and RNA). Herewith, we first provide an overview of the most effective functionalizing agents for graphene derivatives and afterward discuss the significant improvements in the gene and drug delivery composites based on graphene.
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Affiliation(s)
- Negin Borzooee Moghadam
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Manizheh Avatefi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Mahnaz Karimi
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
| | - Matin Mahmoudifard
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
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12
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Assali M, Kittana N, Badran I, Omari S. Covalent functionalization of graphene sheets for plasmid DNA delivery: experimental and theoretical study. RSC Adv 2023; 13:7000-7008. [PMID: 36874935 PMCID: PMC9979783 DOI: 10.1039/d3ra00727h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023] Open
Abstract
Several approaches, including plasmid transfection and viral vectors, were used to deliver genes into cells for therapeutic and experimental purposes. However, due to the limited efficacy and questionable safety issues, researchers are looking for better new approaches. Over the past decade, graphene has attracted tremendous attention in versatile medical applications, including gene delivery, which could be safer than the traditional viral vectors. This work aims to covalently functionalize pristine graphene sheets with a polyamine to allow the loading of plasmid DNA (pDNA) and enhance its delivery into cells. Graphene sheets were successfully covalently functionalized with a derivative of tetraethylene glycol connected to polyamine groups to improve their water dispersibility and capacity to interact with the pDNA. The improved dispersibility of the graphene sheets was demonstrated visually and by transmission electron microscopy. Also, it was shown by thermogravimetric analysis that the degree of functionalization was about 58%. Moreover, the surface charge of the functionalized graphene was +29 mV as confirmed by zeta potential analysis. The complexion of f-graphene with pDNA was achieved at a relatively low mass ratio (10 : 1). The incubation of HeLa cells with f-graphene loaded with pDNA that encodes enhanced green fluorescence protein (eGFP) resulted in the detection of fluorescence signal in the cells within one hour. f-Graphene showed no toxic effect in vitro. Density functional theory (DFT) and quantum theory of atoms in molecules (QTAIM) calculations revealed strong binding with ΔH 298 = 74.9 kJ mol-1. QTAIM between the f-graphene and a simplified model of pDNA. Taken together, the developed functionalized graphene could be used for the development of a new non-viral gene delivery system.
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Affiliation(s)
- Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University Nablus Palestine
| | - Naim Kittana
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University Nablus Palestine
| | - Ismail Badran
- Department of Chemistry, Faculty of Sciences, An-Najah National University Nablus Palestine
| | - Safa Omari
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University Nablus Palestine
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Ashraf G, Aziz A, Iftikhar T, Zhong ZT, Asif M, Chen W. The Roadmap of Graphene-Based Sensors: Electrochemical Methods for Bioanalytical Applications. BIOSENSORS 2022; 12:1183. [PMID: 36551150 PMCID: PMC9775289 DOI: 10.3390/bios12121183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Graphene (GR) has engrossed immense research attention as an emerging carbon material owing to its enthralling electrochemical (EC) and physical properties. Herein, we debate the role of GR-based nanomaterials (NMs) in refining EC sensing performance toward bioanalytes detection. Following the introduction, we briefly discuss the GR fabrication, properties, application as electrode materials, the principle of EC sensing system, and the importance of bioanalytes detection in early disease diagnosis. Along with the brief description of GR-derivatives, simulation, and doping, classification of GR-based EC sensors such as cancer biomarkers, neurotransmitters, DNA sensors, immunosensors, and various other bioanalytes detection is provided. The working mechanism of topical GR-based EC sensors, advantages, and real-time analysis of these along with details of analytical merit of figures for EC sensors are discussed. Last, we have concluded the review by providing some suggestions to overcome the existing downsides of GR-based sensors and future outlook. The advancement of electrochemistry, nanotechnology, and point-of-care (POC) devices could offer the next generation of precise, sensitive, and reliable EC sensors.
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Affiliation(s)
- Ghazala Ashraf
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ayesha Aziz
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tayyaba Iftikhar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zi-Tao Zhong
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Muhammad Asif
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Wei Chen
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics & Molecular Imaging Key Laboratory, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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14
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He Y, Wei Q, An N, Meng C, Hu Z. Organic Small-Molecule Electrodes: Emerging Organic Composite Materials in Supercapacitors for Efficient Energy Storage. Molecules 2022; 27:molecules27227692. [PMID: 36431793 PMCID: PMC9694881 DOI: 10.3390/molecules27227692] [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: 10/15/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022] Open
Abstract
Organic small molecules with electrochemically active and reversible redox groups are excellent candidates for energy storage systems due to their abundant natural origin and design flexibility. However, their practical application is generally limited by inherent electrical insulating properties and high solubility. To achieve both high energy density and power density, organic small molecules are usually immobilized on the surface of a carbon substrate with a high specific surface area and excellent electrical conductivity through non-covalent interactions or chemical bonds. The resulting composite materials are called organic small-molecule electrodes (OMEs). The redox reaction of OMEs occurs near the surface with fast kinetic and higher utilization compared to storing charge through diffusion-limited Faraday reactions. In the past decade, our research group has developed a large number of novel OMEs with different connections or molecular skeletons. This paper introduces the latest development of OMEs for efficient energy storage. Furthermore, we focus on the design motivation, structural advantages, charge storage mechanism, and various electrode parameters of OMEs. With small organic molecules as the active center, OMEs can significantly improve the energy density at low molecular weight through proton-coupled electron transfer, which is not limited by lattice size. Finally, we outline possible trends in the rational design of OMEs toward high-performance supercapacitors.
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Affiliation(s)
- Yuanyuan He
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Qiaoqiao Wei
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Ning An
- College of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
- Correspondence: (N.A.); (Z.H.)
| | - Congcong Meng
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- School of Electronic and Information Engineering, Lanzhou City University, Lanzhou 730070, China
| | - Zhongai Hu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- Correspondence: (N.A.); (Z.H.)
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15
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Gudkov MV, Stolyarova DY, Shiyanova KA, Mel’nikov VP. Polymer Composites with Graphene and Its Derivatives as Functional Materials of the Future. POLYMER SCIENCE SERIES C 2022. [DOI: 10.1134/s1811238222010027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Katow H, Akashi R, Miyamoto Y, Tsuneyuki S. First-Principles Study of the Optical Dipole Trap for Two-Dimensional Excitons in Graphane. PHYSICAL REVIEW LETTERS 2022; 129:047401. [PMID: 35938993 DOI: 10.1103/physrevlett.129.047401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/31/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Recent studies on excitons in two-dimensional materials have been widely conducted for their potential usages for novel electronic and optical devices. Especially, sophisticated manipulation techniques of quantum degrees of freedom of excitons are in demand. In this Letter we propose a technique of forming an optical dipole trap for excitons in graphane, a two-dimensional wide gap semiconductor, based on first-principles calculations. We develop a first-principles method to evaluate the transition dipole matrix between excitonic states and combine it with the density functional theory and GW+BSE calculations. We reveal that in graphane the huge exciton binding energy and the large dipole moments of Wannier-like excitons enable us to induce the dipole trap of the order of meV depth and μm width. This Letter opens a new way to control light-exciton interacting systems based on newly developed numerically robust ab initio calculations.
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Affiliation(s)
- Hiroki Katow
- Photon Science Center, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Ryosuke Akashi
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshiyuki Miyamoto
- Research Center for Computational Design of Advanced Functional Materials, National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Tsukuba, Ibaraki 305-8568, Japan
| | - Shinji Tsuneyuki
- Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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17
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Gao Y, Zeng X, Zhang W, Zhou L, Xue W, Tang M, Sun S. The aggregation behaviour and mechanism of commercial graphene oxide in surface aquatic environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150942. [PMID: 34655633 DOI: 10.1016/j.scitotenv.2021.150942] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/27/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
In this study, we comprehensively and critically discuss the aggregation mechanism of commercial graphene oxide (CGO) in surface aquatic environments. The aggregation kinetics and critical coagulation concentration of CGO were obtained through time-resolved dynamic light scattering and batch techniques over a wide range of water types. By employing transmission electron microscopy and elemental mapping, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy, we studied the effects of cations in natural waters on the microstructure transformation, element content and distribution, and oxygen-containing functional group vibrations of CGO. The aggregation of CGO in natural water is induced mainly by Ca2+ by complexing; Na+, with a higher concentration, plays a more important role than Mg2+ in inducing aggregation via electric double layer suppression. Ca2+ mainly interacts with C - COOH, while Mg2+ has a greater effect on C - OH. Na+ has less effect on the oxygen-containing functional group but decreases the C/O ratio in contrast with Mg2+/Ca2+/natural water, indicating the different inducing mechanisms. This study looks forward to providing pivotal knowledge to predict the environmental fate of CGO more accurately in natural surface water.
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Affiliation(s)
- Yang Gao
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China
| | - Xin Zeng
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China
| | - Wei Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China
| | - Lean Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China
| | - Wenjing Xue
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China
| | - Meiyi Tang
- China West Construction Hunan Group Co. Ltd., Changsha 410114, China
| | - Shiquan Sun
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha 410114, China; Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha 410114, China; Engineering and Technical Center of Hunan Provincial Environmental Protection for River-Lake Dredging Pollution Control, Changsha 410114, China.
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18
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Rabchinskii MK, Sysoev VV, Ryzhkov SA, Eliseyev IA, Stolyarova DY, Antonov GA, Struchkov NS, Brzhezinskaya M, Kirilenko DA, Pavlov SI, Palenov ME, Mishin MV, Kvashenkina OE, Gabdullin PG, Varezhnikov AS, Solomatin MA, Brunkov PN. A Blueprint for the Synthesis and Characterization of Thiolated Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 12:45. [PMID: 35009995 PMCID: PMC8746421 DOI: 10.3390/nano12010045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/14/2021] [Accepted: 12/22/2021] [Indexed: 06/12/2023]
Abstract
Graphene derivatization to either engineer its physical and chemical properties or overcome the problem of the facile synthesis of nanographenes is a subject of significant attention in the nanomaterials research community. In this paper, we propose a facile and scalable method for the synthesis of thiolated graphene via a two-step liquid-phase treatment of graphene oxide (GO). Employing the core-level methods, the introduction of up to 5.1 at.% of thiols is indicated with the simultaneous rise of the C/O ratio to 16.8. The crumpling of the graphene layer upon thiolation without its perforation is pointed out by microscopic and Raman studies. The conductance of thiolated graphene is revealed to be driven by the Mott hopping mechanism with the sheet resistance values of 2.15 kΩ/sq and dependable on the environment. The preliminary results on the chemiresistive effect of these films upon exposure to ethanol vapors in the mix with dry and humid air are shown. Finally, the work function value and valence band structure of thiolated graphene are analyzed. Taken together, the developed method and findings of the morphology and physics of the thiolated graphene guide the further application of this derivative in energy storage, sensing devices, and smart materials.
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Affiliation(s)
- Maxim K. Rabchinskii
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Victor V. Sysoev
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Sergei A. Ryzhkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Ilya A. Eliseyev
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Dina Yu. Stolyarova
- National Research Centre “Kurchatov Institute”, Akademika Kurchatova pl. 1, 123182 Moscow, Russia;
| | - Grigorii A. Antonov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Nikolai S. Struchkov
- Center for Probe Microscopy and Nanotechnology, National Research University of Electronic Technology, Bld. 1, Shokin Square, 124498 Moscow, Russia;
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany;
| | - Demid A. Kirilenko
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Sergei I. Pavlov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
| | - Mihail E. Palenov
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Maxim V. Mishin
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Olga E. Kvashenkina
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Pavel G. Gabdullin
- Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya 29, 195251 Saint Petersburg, Russia; (M.E.P.); (M.V.M.); (O.E.K.); (P.G.G.)
| | - Alexey S. Varezhnikov
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Maksim A. Solomatin
- Department of Physics, Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya St., 410054 Saratov, Russia; (V.V.S.); (A.S.V.); (M.A.S.)
| | - Pavel N. Brunkov
- Ioffe Institute, Politekhnicheskaya St. 26, 194021 Saint Petersburg, Russia; (S.A.R.); (I.A.E.); (G.A.A.); (D.A.K.); (S.I.P.); (P.N.B.)
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19
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Kirchhoff B, Ivanov A, Skúlason E, Jacob T, Fantauzzi D, Jónsson H. Assessment of the Accuracy of Density Functionals for Calculating Oxygen Reduction Reaction on Nitrogen-Doped Graphene. J Chem Theory Comput 2021; 17:6405-6415. [PMID: 34550689 DOI: 10.1021/acs.jctc.1c00377] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Experimental studies of the oxygen reduction reaction (ORR) at nitrogen-doped graphene electrodes have reported a remarkably low overpotential, on the order of 0.5 V, similar to Pt-based electrodes. Theoretical calculations using density functional theory have lent support to this claim. However, other measurements have indicated that transition metal impurities are actually responsible for the ORR activity, thereby raising questions about the reliability of both the experiments and the calculations. To assess the accuracy of the theoretical calculations, various generalized gradient approximation (GGA), meta-GGA, and hybrid functionals are employed here and calibrated against high-level wave-function-based coupled-cluster calculations (CCSD(T)) of the overpotential as well as self-interaction corrected density functional calculations and published quantum Monte Carlo calculations of O adatom binding to graphene. The PBE0 and HSE06 hybrid functionals are found to give more accurate results than the GGA and meta-GGA functionals, as would be expected, and for a low dopant concentration, 3.1%, the overpotential is calculated to be 1.0 V. The GGA and meta-GGA functionals give a lower estimate by as much as 0.4 V. When the dopant concentration is doubled, the overpotential calculated with hybrid functionals decreases, while it increases in GGA functional calculations. The opposite trends result from different potential-determining steps, the *OOH species being of central importance in the hybrid functional calculations, while the reduction of *O determines the overpotential obtained in GGA and meta-GGA calculations. The results presented here are mainly based on calculations of periodic representations of the system, but a comparison is also made with molecular flake models that are found to give erratic results due to finite size effects and geometric distortions during energy minimization. The presence of the electrolyte has not been taken into account explicitly in the calculations presented here but is estimated to be important for definitive calculations of the overpotential.
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Affiliation(s)
- Björn Kirchhoff
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland.,Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany
| | - Aleksei Ivanov
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Egill Skúlason
- Science Institute and Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081 Ulm, Germany.,Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtz-Straβe 16, 89081 Ulm, Germany.,Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Germany
| | - Donato Fantauzzi
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
| | - Hannes Jónsson
- Science Institute and Faculty of Physical Sciences, University of Iceland, VR-III, Hjar∂arhagi 2, 107 Reykjavík, Iceland
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20
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Magne TM, de Oliveira Vieira T, Alencar LMR, Junior FFM, Gemini-Piperni S, Carneiro SV, Fechine LMUD, Freire RM, Golokhvast K, Metrangolo P, Fechine PBA, Santos-Oliveira R. Graphene and its derivatives: understanding the main chemical and medicinal chemistry roles for biomedical applications. JOURNAL OF NANOSTRUCTURE IN CHEMISTRY 2021; 12:693-727. [PMID: 34512930 PMCID: PMC8419677 DOI: 10.1007/s40097-021-00444-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/30/2021] [Indexed: 05/05/2023]
Abstract
Over the past few years, there has been a growing potential use of graphene and its derivatives in several biomedical areas, such as drug delivery systems, biosensors, and imaging systems, especially for having excellent optical, electronic, thermal, and mechanical properties. Therefore, nanomaterials in the graphene family have shown promising results in several areas of science. The different physicochemical properties of graphene and its derivatives guide its biocompatibility and toxicity. Hence, further studies to explain the interactions of these nanomaterials with biological systems are fundamental. This review has shown the applicability of the graphene family in several biomedical modalities, with particular attention for cancer therapy and diagnosis, as a potent theranostic. This ability is derivative from the considerable number of forms that the graphene family can assume. The graphene-based materials biodistribution profile, clearance, toxicity, and cytotoxicity, interacting with biological systems, are discussed here, focusing on its synthesis methodology, physicochemical properties, and production quality. Despite the growing increase in the bioavailability and toxicity studies of graphene and its derivatives, there is still much to be unveiled to develop safe and effective formulations. Graphic abstract
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Affiliation(s)
- Tais Monteiro Magne
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rio de Janeiro, 21941906 Brazil
| | | | - Luciana Magalhães Rebelo Alencar
- Biophysics and Nanosystems Laboratory, Department of Physics, Federal University of Maranhão, São Luis, Maranhão 65080805 Brazil
| | - Francisco Franciné Maia Junior
- Department of Natural Sciences, Mathematics and Statistics, Federal Rural University of the Semi-Arid, Mossoró, RN 59625-900 Brazil
| | - Sara Gemini-Piperni
- Laboratory of Advanced Science, Universidade Unigranrio, Duque de Caxias, RJ 25071-202 Brazil
| | - Samuel V. Carneiro
- Group of Chemistry of Advanced Materials (GQMat)-Department of Analytical Chemistry and Physic-Chemistry, Federal University of Ceará-Campus do Pici, Fortaleza, Ceará 60451-970 Brazil
| | - Lillian M. U. D. Fechine
- Group of Chemistry of Advanced Materials (GQMat)-Department of Analytical Chemistry and Physic-Chemistry, Federal University of Ceará-Campus do Pici, Fortaleza, Ceará 60451-970 Brazil
| | - Rafael M. Freire
- Institute of Applied Chemical Sciences, Universidad Autónoma de Chile, 8910060 Santiago, Chile
| | - Kirill Golokhvast
- Education and Scientific Center of Nanotechnology, School of Engineering, Far Eastern Federal University, Vladivostok, Russia
- N.I. Vavilov All-Russian Institute of Plant Genetic Resources, Saint-Petersburg, Russia
| | - Pierangelo Metrangolo
- Laboratory of Supramolecular and Bio-Nanomaterials, Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta” Politecnico Di Milano, Via L. Mancinelli 7, 20131 Milano, Italy
| | - Pierre B. A. Fechine
- Group of Chemistry of Advanced Materials (GQMat)-Department of Analytical Chemistry and Physic-Chemistry, Federal University of Ceará-Campus do Pici, Fortaleza, Ceará 60451-970 Brazil
| | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Rio de Janeiro, 21941906 Brazil
- Laboratory of Nanoradiopharmacy and Synthesis of Radiopharmaceuticals, Zona Oeste State University, Av Manuel Caldeira de Alvarenga, 200, Campo Grande, Rio de Janeiro, 2100000 Brazil
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21
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Díez-Pascual AM. Development of Graphene-Based Polymeric Nanocomposites: A Brief Overview. Polymers (Basel) 2021; 13:2978. [PMID: 34503017 PMCID: PMC8433988 DOI: 10.3390/polym13172978] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 12/30/2022] Open
Abstract
Graphene (G) and its derivatives, such as graphene oxide (GO) and reduced GO (rGO), have outstanding electrical, mechanical, thermal, optical, and electrochemical properties, owed to their 2D structure and large specific surface area. Further, their combination with polymers leads to novel nanocomposites with enhanced structural and functional properties due to synergistic effects. Such nanocomposites are becoming increasingly useful in a wide variety of fields ranging from biomedicine to the electronics and energy storage applications. In this review, a brief introduction on the aforementioned G derivatives is presented, and different strategies to develop polymeric nanocomposites are described. Several functionalization methods including covalent and non-covalent approaches to increase their interaction with polymers are summarized, and selected examples are provided. Further, applications of this type of nanocomposites in the field of energy are discussed, including lithium-ion batteries, supercapacitors, transparent conductive electrodes, counter electrodes of dye-sensitized solar cells, and active layers of organic solar cells. Finally, the challenges and future outlook for G-based polymeric nanocomposites are discussed.
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Affiliation(s)
- Ana M Díez-Pascual
- Universidad de Alcalá, Facultad de Ciencias, Departamento de Química Analítica, Química Física e Ingeniería Química, Ctra. Madrid-Barcelona, Km. 33.6, 28805 Alcalá de Henares, Madrid, Spain
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22
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Qian W, Xu S, Zhang X, Li C, Yang W, Bowen CR, Yang Y. Differences and Similarities of Photocatalysis and Electrocatalysis in Two-Dimensional Nanomaterials: Strategies, Traps, Applications and Challenges. NANO-MICRO LETTERS 2021; 13:156. [PMID: 34264418 PMCID: PMC8282827 DOI: 10.1007/s40820-021-00681-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/06/2021] [Indexed: 05/22/2023]
Abstract
Photocatalysis and electrocatalysis have been essential parts of electrochemical processes for over half a century. Recent progress in the controllable synthesis of 2D nanomaterials has exhibited enhanced catalytic performance compared to bulk materials. This has led to significant interest in the exploitation of 2D nanomaterials for catalysis. There have been a variety of excellent reviews on 2D nanomaterials for catalysis, but related issues of differences and similarities between photocatalysis and electrocatalysis in 2D nanomaterials are still vacant. Here, we provide a comprehensive overview on the differences and similarities of photocatalysis and electrocatalysis in the latest 2D nanomaterials. Strategies and traps for performance enhancement of 2D nanocatalysts are highlighted, which point out the differences and similarities of series issues for photocatalysis and electrocatalysis. In addition, 2D nanocatalysts and their catalytic applications are discussed. Finally, opportunities, challenges and development directions for 2D nanocatalysts are described. The intention of this review is to inspire and direct interest in this research realm for the creation of future 2D nanomaterials for photocatalysis and electrocatalysis.
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Affiliation(s)
- Weiqi Qian
- Beijing Key Laboratory of Micro-Nano Energy and Sensor, CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, People's Republic of China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
| | - Suwen Xu
- Beijing Key Laboratory of Micro-Nano Energy and Sensor, CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, People's Republic of China
- Optoelectronics Research Center, School of Science, College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, People's Republic of China
| | - Xiaoming Zhang
- Optoelectronics Research Center, School of Science, College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, People's Republic of China
| | - Chuanbo Li
- Optoelectronics Research Center, School of Science, College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, People's Republic of China.
| | - Weiyou Yang
- Institute of Materials, Ningbo University of Technology, Ningbo, 315016, People's Republic of China.
| | - Chris R Bowen
- Department of Mechanical Engineering, University of Bath, Bath, BA2 7AK, UK
| | - Ya Yang
- Beijing Key Laboratory of Micro-Nano Energy and Sensor, CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, People's Republic of China.
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
- Center on Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, 530004, People's Republic of China.
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Panahi A, Sadighbayan D, Forouhi S, Ghafar-Zadeh E. Recent Advances of Field-Effect Transistor Technology for Infectious Diseases. BIOSENSORS 2021; 11:103. [PMID: 33918325 PMCID: PMC8065562 DOI: 10.3390/bios11040103] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 02/07/2023]
Abstract
Field-effect transistor (FET) biosensors have been intensively researched toward label-free biomolecule sensing for different disease screening applications. High sensitivity, incredible miniaturization capability, promising extremely low minimum limit of detection (LoD) at the molecular level, integration with complementary metal oxide semiconductor (CMOS) technology and last but not least label-free operation were amongst the predominant motives for highlighting these sensors in the biosensor community. Although there are various diseases targeted by FET sensors for detection, infectious diseases are still the most demanding sector that needs higher precision in detection and integration for the realization of the diagnosis at the point of care (PoC). The COVID-19 pandemic, nevertheless, was an example of the escalated situation in terms of worldwide desperate need for fast, specific and reliable home test PoC devices for the timely screening of huge numbers of people to restrict the disease from further spread. This need spawned a wave of innovative approaches for early detection of COVID-19 antibodies in human swab or blood amongst which the FET biosensing gained much more attention due to their extraordinary LoD down to femtomolar (fM) with the comparatively faster response time. As the FET sensors are promising novel PoC devices with application in early diagnosis of various diseases and especially infectious diseases, in this research, we have reviewed the recent progress on developing FET sensors for infectious diseases diagnosis accompanied with a thorough discussion on the structure of Chem/BioFET sensors and the readout circuitry for output signal processing. This approach would help engineers and biologists to gain enough knowledge to initiate their design for accelerated innovations in response to the need for more efficient management of infectious diseases like COVID-19.
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Affiliation(s)
- Abbas Panahi
- Biologically Sensors and Actuators (BioSA) Laboratory, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada; (A.P.); (D.S.); (S.F.)
- Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada
| | - Deniz Sadighbayan
- Biologically Sensors and Actuators (BioSA) Laboratory, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada; (A.P.); (D.S.); (S.F.)
- Department of Biology, Faculty of Science, York University, Keel Street, Toronto, ON M3J 1P3, Canada
| | - Saghi Forouhi
- Biologically Sensors and Actuators (BioSA) Laboratory, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada; (A.P.); (D.S.); (S.F.)
- Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada
| | - Ebrahim Ghafar-Zadeh
- Biologically Sensors and Actuators (BioSA) Laboratory, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada; (A.P.); (D.S.); (S.F.)
- Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Keel Street, Toronto, ON M3J 1P3, Canada
- Department of Biology, Faculty of Science, York University, Keel Street, Toronto, ON M3J 1P3, Canada
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24
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Olatunde OC, Onwudiwe DC. Graphene-Based Composites as Catalysts for the Degradation of Pharmaceuticals. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1529. [PMID: 33562739 PMCID: PMC7914572 DOI: 10.3390/ijerph18041529] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/20/2021] [Accepted: 01/27/2021] [Indexed: 11/20/2022]
Abstract
The incessant release of pharmaceuticals into the aquatic environment continues to be a subject of increasing concern. This is because of the growing demand for potable water sources and the potential health hazards which these pollutants pose to aquatic animals and humans. The inability of conventional water treatment systems to remove these compounds creates the need for new treatment systems in order to deal with these class of compounds. This review focuses on advanced oxidation processes that employ graphene-based composites as catalysts for the degradation of pharmaceuticals. These composites have been identified to possess enhanced catalytic activity due to increased surface area and reduced charge carrier recombination. The techniques employed in synthesizing these composites have been explored and five different advanced oxidation processes-direct degradation process, chemical oxidation process, photocatalysis, electrocatalyis processes and sonocatalytic/sono-photocatalytic processes-have been studied in terms of their enhanced catalytic activity. Finally, a comparative analysis of the processes that employ graphene-based composites was done in terms of process efficiency, reaction rate, mineralization efficiency and time required to achieve 90% degradation.
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Affiliation(s)
- Olalekan C. Olatunde
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, Mafikeng Campus, North-West University, Private Bag X2046, Mmabatho 2735, South Africa;
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, Mafikeng Campus, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
| | - Damian C. Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, Mafikeng Campus, North-West University, Private Bag X2046, Mmabatho 2735, South Africa;
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, Mafikeng Campus, North-West University, Private Bag X2046, Mmabatho 2735, South Africa
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25
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Li W, Li Y, Xu K. Facile, Electrochemical Chlorination of Graphene from an Aqueous NaCl Solution. NANO LETTERS 2021; 21:1150-1155. [PMID: 33448861 DOI: 10.1021/acs.nanolett.0c04641] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a facile approach to directly chlorinate graphene from an aqueous sodium chloride solution under ambient conditions. By applying a moderate anodic voltage to substrate-supported monolayer graphene, the resultant chlorine radicals generated at the graphene surface enable efficient chlorination: X-ray photoelectron spectrum confirms the formation of C-Cl bonds, and reaction voltage-tunable Cl:C atomic ratios of up to 17% are achieved. In comparison, we find the corresponding electrochemical graphene bromination and iodination reactions much less viable. Electrical and Raman characterizations show substantial p-doping for the chlorinated graphene, yet good basal-plane integrity and electrical properties are maintained. Interference reflection microscopy and pH-dependent experiments next help elucidate the competition between the radical-mediated electrochemical chlorination and oxidation in the process, and rationalize acidic conditions for optimal chlorination. Reaction in a mixed NaCl-NaN3 solution shows the electrochemical chlorination to be fully suppressed by azidation, yet a sequential, two-step chlorination-azidation approach permits facile bifunctionalization.
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Affiliation(s)
- Wan Li
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yunqi Li
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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26
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Farjadian F, Abbaspour S, Sadatlu MAA, Mirkiani S, Ghasemi A, Hoseini‐Ghahfarokhi M, Mozaffari N, Karimi M, Hamblin MR. Recent Developments in Graphene and Graphene Oxide: Properties, Synthesis, and Modifications: A Review. ChemistrySelect 2020. [DOI: 10.1002/slct.202002501] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Fatemeh Farjadian
- Pharmaceutical Sciences Research Center Shiraz University of Medical Sciences Shiraz Iran
| | - Somayeh Abbaspour
- Department of Materials Science and Engineering Sharif University of Technology Iran
| | | | - Soroush Mirkiani
- Neuroscience & Mental Health Institute Faculty of Medicine & Dentistry University of Alberta Canada
| | - Amir Ghasemi
- Department of Materials Science and Engineering Sharif University of Technology Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG) Iran University of Medical Sciences Tehran Iran
| | - Mojtaba Hoseini‐Ghahfarokhi
- Nano Drug Delivery Research Center Kermanshah University of Medical Sciences Kermanshah Iran
- Radiology and Nuclear Medicine department School of Paramedical Sciences Kermanshah University of Medical Sciences Kermanshah Iran
| | - Naeimeh Mozaffari
- Research School of Electrical Energy and Materials Engineering The Australian National University Canberra ACT 2601 Australia
| | - Mahdi Karimi
- Iran Cellular and Molecular Research Center Iran University of Medical Sciences Tehran Iran
- Department of Medical Nanotechnology Faculty of Advanced Technologies in Medicine Iran University of Medical Sciences Tehran Iran
- Oncopathology Research Center Iran University of Medical Sciences Tehran Iran
- Research Center for Science and Technology in Medicine Tehran University of Medical Sciences Tehran Iran
- Applied Biotechnology Research Centre Tehran Medical Science Islamic Azad University Tehran Iran
| | - Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Harvard Medical School Boston MA 02114 USA
- Department of Dermatology Harvard Medical School Boston MA 02115 USA
- Laser Research Centre Faculty of Health Science University of Johannesburg Johannesburg, Doornfontein 2028 South Africa
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27
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Chemiresistive Properties of Imprinted Fluorinated Graphene Films. MATERIALS 2020; 13:ma13163538. [PMID: 32796571 PMCID: PMC7475924 DOI: 10.3390/ma13163538] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 01/04/2023]
Abstract
The electrical conductivity of graphene materials is strongly sensitive to the surface adsorbates, which makes them an excellent platform for the development of gas sensor devices. Functionalization of the surface of graphene opens up the possibility of adjusting the sensor to a target molecule. Here, we investigated the sensor properties of fluorinated graphene films towards exposure to low concentrations of nitrogen dioxide NO2. The films were produced by liquid-phase exfoliation of fluorinated graphite samples with a composition of CF0.08, CF0.23, and CF0.33. Fluorination of graphite using a BrF3/Br2 mixture at room temperature resulted in the covalent attachment of fluorine to basal carbon atoms, which was confirmed by X-ray photoelectron and Raman spectroscopies. Depending on the fluorination degree, the graphite powders had a different dispersion ability in toluene, which affected an average lateral size and thickness of the flakes. The films obtained from fluorinated graphite CF0.33 showed the highest relative response ca. 43% towards 100 ppm NO2 and the best recovery ca. 37% at room temperature.
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28
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Jankovský O, Lojka M, Jiříčková A, Aneziris CG, Storti E, Sedmidubský D. Carbon-Bonded Alumina Filters Coated by Graphene Oxide for Water Treatment. MATERIALS 2020; 13:ma13082006. [PMID: 32344756 PMCID: PMC7215612 DOI: 10.3390/ma13082006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 11/29/2022]
Abstract
The aim of this paper is to prepare nano-functionalized ceramic foam filters from carbon-bonded alumina. The carbon-bonded filters were produced via the Schwartzwalder process using a two-step approach. The prepared ceramic foam filters were further coated using graphene oxide. Graphene oxide was prepared by the modified Tour method. The C/O of the graphene oxide ratio was evaluated by XPS, EDS and elemental analysis (EA). The amount and type of individual oxygen functionalities were characterized by XPS and Raman spectroscopy. The microstructure was studied by TEM, and XRD was used to evaluate the interlayer distance. In the next step, filters were coated by graphene oxide using dip-coating. After drying, the prepared composite filters were used for the purification of the water containing lead, zinc and cadmium ions. The efficiency of the sorption was very high, suggesting the potential use of these materials for the treatment of wastewater from heavy metals.
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Affiliation(s)
- Ondřej Jankovský
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic; (M.L.); (A.J.); (D.S.)
- Correspondence: ; Tel.: +420-220-44-2002
| | - Michal Lojka
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic; (M.L.); (A.J.); (D.S.)
| | - Adéla Jiříčková
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic; (M.L.); (A.J.); (D.S.)
| | - Christos G. Aneziris
- Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09599 Freiberg, Germany; (C.G.A.); (E.S.)
| | - Enrico Storti
- Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09599 Freiberg, Germany; (C.G.A.); (E.S.)
| | - David Sedmidubský
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic; (M.L.); (A.J.); (D.S.)
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29
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Rabchinskii MK, Ryzhkov SA, Kirilenko DA, Ulin NV, Baidakova MV, Shnitov VV, Pavlov SI, Chumakov RG, Stolyarova DY, Besedina NA, Shvidchenko AV, Potorochin DV, Roth F, Smirnov DA, Gudkov MV, Brzhezinskaya M, Lebedev OI, Melnikov VP, Brunkov PN. From graphene oxide towards aminated graphene: facile synthesis, its structure and electronic properties. Sci Rep 2020; 10:6902. [PMID: 32327708 PMCID: PMC7181732 DOI: 10.1038/s41598-020-63935-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 04/01/2020] [Indexed: 12/12/2022] Open
Abstract
In this paper we present a facile method for the synthesis of aminated graphene derivative through simultaneous reduction and amination of graphene oxide via two-step liquid phase treatment with hydrobromic acid and ammonia solution in mild conditions. The amination degree of the obtained aminated reduced graphene oxide is of about 4 at.%, whereas C/O ratio is up to 8.8 as determined by means of X-ray photoelectron spectroscopy. The chemical reactivity of the introduced amine groups is further verified by successful test covalent bonding of the obtained aminated graphene with 3-Chlorobenzoyl chloride. The morphological features and electronic properties, namely conductivity, valence band structure and work function are studied as well, illustrating the influence of amine groups on graphene structure and physical properties. Particularly, the increase of the electrical conductivity, reduction of the work function value and tendency to form wrinkled and corrugated graphene layers are observed in the aminated graphene derivative compared to the pristine reduced graphene oxide. As obtained aminated graphene could be used for photovoltaic, biosensing and catalysis application as well as a starting material for further chemical modifications.
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Affiliation(s)
| | - Sergei A Ryzhkov
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
| | - Demid A Kirilenko
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia.
- ITMO University, 49 Kronverksky Pr., 197101, Saint Petersburg, Russia.
| | - Nikolay V Ulin
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
| | - Marina V Baidakova
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
| | - Vladimir V Shnitov
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
| | - Sergei I Pavlov
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
| | - Ratibor G Chumakov
- NRC "Kurchatov Institute", 1 Akademika Kurchatova pl., 123182, Moscow, Russia
| | - Dina Yu Stolyarova
- NRC "Kurchatov Institute", 1 Akademika Kurchatova pl., 123182, Moscow, Russia
| | - Nadezhda A Besedina
- St. Petersburg Academic University, Khlopin St. 8/3, 194021, Saint Petersburg, Russia
| | | | - Dmitrii V Potorochin
- ITMO University, 49 Kronverksky Pr., 197101, Saint Petersburg, Russia
- Technische Universität Bergakademie Freiberg, Akademiestraße 6, 09599, Freiberg, Germany
- Deutsches Elektronen-Synchrotron DESY, 85 Notkestraße, Hamburg, D-22607, Germany
| | - Friedrich Roth
- Technische Universität Bergakademie Freiberg, Akademiestraße 6, 09599, Freiberg, Germany
| | - Dmitry A Smirnov
- Institut fur Festkorper und Materialphysik, Technische Universitat Dresden, Dresden, Germany
| | - Maksim V Gudkov
- Semenov Institute of Chemical Physics of Russian Academy of Sciences, Kosygina St., 4, 119991, Moscow, Russia
| | - Maria Brzhezinskaya
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Oleg I Lebedev
- Laboratoire CRISMAT, ENSICAEN UMR6508, 6 Bd Maréchal Juin, Cedex 4, Caen, 14050, France
| | - Valery P Melnikov
- Semenov Institute of Chemical Physics of Russian Academy of Sciences, Kosygina St., 4, 119991, Moscow, Russia
| | - Pavel N Brunkov
- Ioffe Institute, 26 Politekhnicheskaya, 194021, Saint Petersburg, Russia
- ITMO University, 49 Kronverksky Pr., 197101, Saint Petersburg, Russia
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30
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Lojka M, Lochman B, Jankovský O, Jiříčková A, Sofer Z, Sedmidubský D. Synthesis, Composition, and Properties of Partially Oxidized Graphite Oxides. MATERIALS 2019; 12:ma12152367. [PMID: 31349591 PMCID: PMC6695847 DOI: 10.3390/ma12152367] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/22/2019] [Accepted: 07/23/2019] [Indexed: 11/16/2022]
Abstract
The aim of this paper is to prepare and characterize partially-oxidized graphite oxide and consider if it is possible to affect the level of oxidation of particles by an adjustment of the oxidizing agent. Several samples were prepared, using different amounts of oxidizing agent. The samples were subsequently analyzed. The C/O ratio was evaluated from XPS, EDS, and EA. The amount and type of individual oxygen functionalities were characterized by XPS, Raman spectroscopy, and cyclic voltammetry. The structure was studied by SEM and XRD. Thermal stability was investigated by STA-MS in argon atmosphere. The results can be useful in order to design simple technology for graphite oxide synthesis with required oxygen content.
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Affiliation(s)
- Michal Lojka
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Boris Lochman
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Ondřej Jankovský
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic.
| | - Adéla Jiříčková
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic
| | - David Sedmidubský
- Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology, Technická 5, 166 28 Prague 6, Czech Republic.
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31
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Li Z, Zhang Y, Ma J, Meng Q, Fan J. Modeling Interactions between Liposomes and Hydrophobic Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804992. [PMID: 30589212 DOI: 10.1002/smll.201804992] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Indexed: 05/09/2023]
Abstract
2D nanomaterials could cause structural disruption and cytotoxic effects to cells, which greatly challenges their promising biomedical applications including biosensing, bioimaging, and drug delivery. Here, the physical and mechanical interaction between lipid liposomes and hydrophobic nanosheets is studied utilizing coarse-grained (CG) molecular dynamics (MD) simulations. The simulations reveal a variety of characteristic interaction morphologies that depend on the size and the orientation of nanosheets. Dynamic and thermodynamic analyses on the morphologic evolution provide insights into molecular motions such as "nanosheet rotation," "lipid extraction," "lipid flip-flop," and "lipid spreading." Driven by these molecular motions, hydrophobic nanosheets cause morphologic changes of liposomes. The lipid bilayer structure can be corrugated, and the overall liposome sphere can be split or collapsed by large nanosheets. In addition, nanosheets embedded into lipid bilayers greatly weaken the fluidity of lipids, and this effect can be cumulatively enhanced as nanosheets continuously intrude. These results could facilitate molecular-level understanding on the cytotoxicity of nanomaterials, and help future nanotoxicology studies associating computational modeling with experiments.
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Affiliation(s)
- Zhen Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Yonghui Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jiale Ma
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Qiangqiang Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jun Fan
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
- City University of Hong Kong, Shenzhen Research Institute, Shenzhen, 518057, China
- Center for Advanced Nuclear Safety and Sustainable Development, City University of Hong Kong, Hong Kong, China
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32
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Tuček J, Holá K, Zoppellaro G, Błoński P, Langer R, Medved' M, Susi T, Otyepka M, Zbořil R. Zigzag sp 2 Carbon Chains Passing through an sp 3 Framework: A Driving Force toward Room-Temperature Ferromagnetic Graphene. ACS NANO 2018; 12:12847-12859. [PMID: 30516956 DOI: 10.1021/acsnano.8b08052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Stabilization of ferromagnetic ordering in graphene-based systems up to room temperature remains an important challenge owing to the huge scope for applications in electronics, spintronics, biomedicine, and separation technologies. To date, several strategies have been proposed, including edge engineering, introduction of defects and dopants, and covalent functionalization. However, these techniques are usually hampered by limited temperature sustainability of ferromagnetic ordering. Here, we describe a method for the well-controlled sp3 functionalization of graphene to synthesize zigzag conjugated sp2 carbon chains that can act as communication pathways among radical motifs. Zigzag sp2/sp3 patterns in the basal plane were clearly observed by high-resolution scanning transmission electron microscopy and provided a suitable matrix for stabilization of ferromagnetic ordering up to room temperature due to combined contributions of itinerant π-electrons and superexchange interactions. The results highlight the principal role of sp2/sp3 ratio and superorganization of radical motifs in graphene for generating room-temperature nonmetallic magnets.
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Affiliation(s)
- Jiří Tuček
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Kateřina Holá
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Giorgio Zoppellaro
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Piotr Błoński
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Rostislav Langer
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Miroslav Medved'
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Toma Susi
- Faculty of Physics , University of Vienna , Boltzmanngasse 5 , 1090 Vienna , Austria
| | - Michal Otyepka
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science , Palacký University in Olomouc , Šlechtitelů 27 , 783 71 Olomouc , Czech Republic
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Synthesis of Reduced Graphene Oxide with Adjustable Microstructure Using Regioselective Reduction in the Melt of Boric Acid: Relationship Between Structural Properties and Electrochemical Performance. NANOMATERIALS 2018; 8:nano8110889. [PMID: 30388766 PMCID: PMC6266621 DOI: 10.3390/nano8110889] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 10/25/2018] [Accepted: 10/27/2018] [Indexed: 11/16/2022]
Abstract
The melt of H3BO3 was used to reach a controllable reduced graphene oxide (rGO) synthesis protocol using a graphene oxide (GO) precursor. Thermogravimetric analysis and differential scanning calorimetry (TG/DSC) investigation and scanning electron microscopy (SEM) images have shown that different from GO powder, reduction of GO in the melt of H3BO3 leads to the formation of less disordered structure of basal graphene planes. Threefold coordinated boron atom acts as a scavenger of oxygen atoms during the process of GO reduction. Fourier-transform infrared (FTIR) spectra of synthesized products have shown that the complex of glycerol and H3BO3 acts as a regioselective catalyst in epoxide ring-opening reaction and suppress the formation of ketone C=O functional groups at vacancy sites. Thermal treatment at 800 °C leads to the increased concentration of point defects in the backbone structure of rGO. Synthesized materials were tested electrochemically. The electrochemical performance of these materials essentially differs depending on the preparation protocol. The highest charge/discharge rate and double-layer capacitance were found for a sample synthesized in the melt of H3BO3 in the presence of glycerol and treated at 800 °C. The effect of optimal porosity and high electrical conductivity on the electrochemical performance of prepared materials also were studied.
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Liu F, Han F, Ling L, Li J, Zhao S, Zhao T, Liang X, Zhu D, Zhang G, Sun R, Ho D, Wong C. An Omni‐Healable and Highly Sensitive Capacitive Pressure Sensor with Microarray Structure. Chemistry 2018; 24:16823-16832. [DOI: 10.1002/chem.201803369] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Feng Liu
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
- College of Materials Science and Engineering Shenzhen University Shenzhen 518060 P.R. China
| | - Fei Han
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Lei Ling
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Jinhui Li
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
- Department of Materials Science and Engineering City University of Hong Kong Hong Kong 999077 P.R. China
| | - Songfang Zhao
- School of Material Science and Engineering University of Jinan Jinan 250022 P.R. China
| | - Tao Zhao
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Xianwen Liang
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Deliang Zhu
- College of Materials Science and Engineering Shenzhen University Shenzhen 518060 P.R. China
| | - Guoping Zhang
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Rong Sun
- Guangdong Provincial Key Laboratory of Materials, for High Density Electronic Packaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 P.R. China
| | - Derek Ho
- Department of Materials Science and Engineering City University of Hong Kong Hong Kong 999077 P.R. China
| | - Ching‐Ping Wong
- School of Materials Science and Engineering Georgia Institute of Technology Atlanta 30332 USA
- Department of Electronic Engineering The Chinese University of Hong Kong Hong Kong 999077 P.R. China
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Lai W, Liu J, Luo L, Wang X, He T, Fan K, Liu X. The Friedel-Crafts reaction of fluorinated graphene for high-yield arylation of graphene. Chem Commun (Camb) 2018; 54:10168-10171. [PMID: 30137102 DOI: 10.1039/c8cc05762a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, we report the Friedel-Crafts reaction of fluorinated graphene with aryl molecules including methylbenzene, chlorobenzene and polystyrene. The reaction achieved the high-yield arylation functionalization of graphene under mild reaction conditions and extends the range of the Friedel-Crafts reaction to the field of two-dimensional materials.
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Affiliation(s)
- Wenchuan Lai
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Material and Engineering, Sichuan University, Chengdu 610065, People's Republic of China.
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Phosphorus Particles Embedded in Reduced Graphene Oxide Matrix to Enhance Capacity and Rate Capability for Capacitive Potassium-Ion Storage. Chemistry 2018; 24:13897-13902. [DOI: 10.1002/chem.201802753] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/03/2018] [Indexed: 01/05/2023]
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Heng Cheong Y, Nasir MZM, Bakandritsos A, Pykal M, Jakubec P, Zbořil R, Otyepka M, Pumera M. Cyanographene and Graphene Acid: The Functional Group of Graphene Derivative Determines the Application in Electrochemical Sensing and Capacitors. ChemElectroChem 2018. [DOI: 10.1002/celc.201800675] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yi Heng Cheong
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
| | - Muhammad Zafir Mohamad Nasir
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
| | - Aristides Bakandritsos
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Martin Pykal
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Petr Jakubec
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Radek Zbořil
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Michal Otyepka
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Martin Pumera
- Division of Chemistry & Biological Chemistry, School of Physical Mathematical Science; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
- Department of Physical Chemistry, Faculty of Science; Palacký University Olomouc, Regional Centre of Advanced Technologies and Materials; tř. 17. Listopadu 12 771 46 Olomouc Czech Republic
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry; University of Chemistry and Technology Prague; Technická 5 16628 Prague Czech Republic
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Matochová D, Medved’ M, Bakandritsos A, Steklý T, Zbořil R, Otyepka M. 2D Chemistry: Chemical Control of Graphene Derivatization. J Phys Chem Lett 2018; 9:3580-3585. [PMID: 29890828 PMCID: PMC6038093 DOI: 10.1021/acs.jpclett.8b01596] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Controllable synthesis of graphene derivatives with defined composition and properties represents the holy grail of graphene chemistry, especially in view of the low reactivity of graphene. Recent progress in fluorographene (FG) chemistry has opened up new routes for synthesizing a plethora of graphene derivatives with widely applicable properties, but they are often difficult to control. We explored nucleophilic substitution on FG combining density functional theory calculations with experiments to achieve accurate control over the functionalization process. In-depth analysis revealed the complexity of the reaction and identified basic rules for controlling the 2D chemistry. Their application, that is, choice of solvent and reaction time, enabled facile control over the reaction of FG with N-octylamine to form graphene derivatives with tailored content of the alkylamine functional group (2.5-7.5% N atomic content) and F atoms (31.5-3.5% F atomic content). This work substantially extends prospects for the controlled covalent functionalization of graphene.
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Brazhkin VV, Nikolaev NA, Shulga YM, Lebed YB, Kondrin MV. The structure and synthesis of organic crystalline polymers: hints from ab initio computation. CrystEngComm 2018. [DOI: 10.1039/c8ce00595h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The optical properties and structures of extended covalently bonded hydrocarbon polymers were studied by the DFT method and compared with experimental data.
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Affiliation(s)
| | | | - Y. M. Shulga
- National University of Science and Technology ’MISIS’
- 119049 Moscow
- Russia
| | - Y. B. Lebed
- Institute for Nuclear Research RAS
- Moscow
- Russia
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