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Yadav M, Osonga FJ, Sadik OA. Unveiling nano-empowered catalytic mechanisms for PFAS sensing, removal and destruction in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169279. [PMID: 38123092 DOI: 10.1016/j.scitotenv.2023.169279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/14/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are organofluorine compounds used to manufacture various industrial and consumer goods. Due to their excellent physical and thermal stability ascribed to the strong CF bond, these are ubiquitously present globally and difficult to remediate. Extensive toxicological and epidemiological studies have confirmed these substances to cause adverse health effects. With the increasing literature on the environmental impact of PFAS, the regulations and research have also expanded. Researchers worldwide are working on the detection and remediation of PFAS. Many methods have been developed for their sensing, removal, and destruction. Amongst these methods, nanotechnology has emerged as a sustainable and affordable solution due to its tunable surface properties, high sorption capacities, and excellent reactivities. This review comprehensively discusses the recently developed nanoengineered materials used for detecting, sequestering, and destroying PFAS from aqueous matrices. Innovative designs of nanocomposites and their efficiency for the sensing, removal, and degradation of these persistent pollutants are reviewed, and key insights are analyzed. The mechanistic details and evidence available to support the cleavage of the CF bond during the treatment of PFAS in water are critically examined. Moreover, it highlights the challenges during PFAS quantification and analysis, including the analysis of intermediates in transitioning nanotechnologies from the laboratory to the field.
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Affiliation(s)
- Manavi Yadav
- Department of Chemistry and Environmental Sciences, New Jersey Institutes of Technology (NJIT), United States of America
| | - Francis J Osonga
- Department of Chemistry and Environmental Sciences, New Jersey Institutes of Technology (NJIT), United States of America
| | - Omowunmi A Sadik
- Department of Chemistry and Environmental Sciences, New Jersey Institutes of Technology (NJIT), United States of America.
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2
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Tarannum N, Kumar D, Agrawal R. Facile Titrimetric Assay of Lysophosphatidic Acid in Human Serum and Plasma for Ovarian Cancer Detection. J Cancer Prev 2023; 28:31-39. [PMID: 37434795 PMCID: PMC10331031 DOI: 10.15430/jcp.2023.28.2.31] [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: 04/27/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 07/13/2023] Open
Abstract
Herein, an instrument free facile acid-base titrimetric methodology is reported for lysophosphatidic acid (LPA) measurement in serum and plasma samples for ovarian cancer detection. The concept is based on the titrimetric method in which alkaline solution was titrated with free fatty acid. Free fatty acid is generated due to action of the lysophospholipase to LPA. A phospholipid derivative known as LPA can function as a signaling molecule. A glycerol backbone serves as the foundation for phosphatidic acid, which also has bonds to an unsaturated fatty acid at carbon-1, a hydroxyl group at carbon-2, and a phosphate molecule at carbon-3. Free fatty acid and glycerol-3-phosphate are formed when LPA reacts with lysophospholipase. The formation of free fatty acid depends on the concentration of LPA. The standard graph of known concentrations of LPA, LPA spiked serum and LPA spiked plasma was plotted. The concentration of LPA in unknown serum and plasma were calculated from the standard graph. The limit of detection of LPA in spiked serum and plasma samples via titrimetric assay was calculated as 0.156 μmol/L. A patient's chance of survival may be outweighed by an early diagnosis of ovarian cancer.
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Affiliation(s)
- Nazia Tarannum
- Department of Chemistry, Chaudhary Charan Singh University, Meerut, India
| | - Deepak Kumar
- Department of Chemistry, Chaudhary Charan Singh University, Meerut, India
| | - Ranu Agrawal
- Department of Applied Science, Sir Chhotu Ram Institute of Engineering and Technology, Chaudhary Charan Singh University, Meerut, India
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Huang M, Wang H, Liu G, Wei H, Hu J, Wang Y, Gong X, Mao S, Danilov M, Rusetskyi I, Tang J. Excellent Photonic and Mechanical Properties of Macromorphic Fibers Formed by Eu 3+-Complex-Anchored, Unzipped, Multiwalled Carbon Nanotubes. MATERIALS 2022; 15:ma15144933. [PMID: 35888400 PMCID: PMC9320603 DOI: 10.3390/ma15144933] [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: 06/15/2022] [Revised: 07/08/2022] [Accepted: 07/13/2022] [Indexed: 12/10/2022]
Abstract
The macromorphic properties of carbon nanotubes perform poorly because of their size limitations: nanosize in diameters and microsize in length. In this work, to realize these dual purposes, we first used an electrochemical method to tear the surface of multiwalled carbon nanotubes (MWCNTs) to anchor photonic Eu3+-complexes there. Through the polar reactive groups endowed by the tearing, the Eu3+-complexes coordinate at the defected structures, obtaining the Eu3+-complex-anchored, unzipped, multiwalled carbon nanotubes (E-uMWCNTs). The controllable surface-breaking retains the MWCNTs’ original, excellent mechanical properties. Then, to obtain the macromorphic structure with infinitely long fibers, a wet-spinning process was applied via the binding of a small quantity of polyvinyl alcohol (PVA). Thus, the wet-spun fibers with high contents of E-uMWCNTs (E-uMWCNT-Fs) were produced, in which the E-uMWCNTs took 33.3 wt%, a high ratio in E-uMWCNT-Fs. On the other hand, due to the reinforcing effect of E-uMWCNTs, the highest tensile strength can reach 228.2 MPa for E-uMWCNT-Fs. Meanwhile, the E-uMWCNT-Fs show high-efficiency photoluminescence and excellent media resistance performance due to the embedding effect of PVA on the E-uMWCNTs. Therefore, E-uMWCNT-Fs can exhibit excellent luminescence properties in aqueous solutions at pH 4~12 and in some high-concentration metal-ion solutions. Those distinguished performances promise outstanding innovations of this work.
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Affiliation(s)
- Mengjie Huang
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Haihang Wang
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Gaohan Liu
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Heng Wei
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Jie Hu
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Yao Wang
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Xuezhong Gong
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Sui Mao
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
| | - Michail Danilov
- V.I. Vernadskii Institute of General and Inorganic Chemistry of the Ukrainian NAS, 32/34 Palladin Avenue, 03142 Kyiv, Ukraine;
- Correspondence: (M.D.); (J.T.)
| | - Ihor Rusetskyi
- V.I. Vernadskii Institute of General and Inorganic Chemistry of the Ukrainian NAS, 32/34 Palladin Avenue, 03142 Kyiv, Ukraine;
| | - Jianguo Tang
- Institute of Hybrid Materials, National Centre of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (M.H.); (H.W.); (G.L.); (H.W.); (J.H.); (Y.W.); (X.G.); (S.M.)
- Correspondence: (M.D.); (J.T.)
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Wang X, Li H, Shan C, Pan B. Construction of model platforms to probe the confinement effect of nanocomposite-enabled water treatment. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2021.100229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Dubey R, Dutta D, Sarkar A, Chattopadhyay P. Functionalized carbon nanotubes: synthesis, properties and applications in water purification, drug delivery, and material and biomedical sciences. NANOSCALE ADVANCES 2021; 3:5722-5744. [PMID: 36132675 PMCID: PMC9419119 DOI: 10.1039/d1na00293g] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/08/2021] [Indexed: 05/03/2023]
Abstract
Carbon nanotubes (CNTs) are considered as one of the ideal materials due to their high surface area, high aspect ratio, and impressive material properties, such as mechanical strength, and thermal and electrical conductivity, for the manufacture of next generation composite materials. In spite of the mentioned attractive features, they tend to agglomerate due to their inherent chemical structure which limits their application. Surface modification is required to overcome the agglomeration and increase their dispersability leading to enhanced interactions of the functionalized CNTs with matrix materials/polymer matrices. Recent developments concerning reliable methods for the functionalization of carbon nanotubes offer an additional thrust towards extending their application areas. By chemical functionalization, organic functional groups are generated/attached to the surfaces as well as the tip of CNTs which opens up the possibilities for tailoring the properties of nanotubes and extending their application areas. Different research efforts have been devoted towards both covalent and non-covalent functionalization for different applications. Functionalized CNTs have been used successfully for the development of high quality nanocomposites, finding wide application as chemical and biological sensors, in optoelectronics and catalysis. Non covalently functionalized carbon nanotubes have been used as a substrate for the immobilization of a large variety of biomolecules to impart specific recognition properties for the development of miniaturized biosensors as well as designing of novel bioactive nanomaterials. Functionalized CNTs have also been demonstrated as one of the promising nanomaterials for the decontamination of water due to their high adsorption capacity and specificity for various contaminants. Specifically modified CNTs have been utilized for bone tissue engineering and as a novel and versatile drug delivery vehicle. This review article discusses in short the synthesis, properties and applications of CNTs. This includes the need for functionalization of CNTs, methods and types of functionalization, and properties of functionalized CNTs and their applications especially with respect to material and biomedical sciences, water purification, and drug delivery systems.
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Affiliation(s)
- Rama Dubey
- Defence Research Laboratory Post Bag No. 2 Tezpur 784001 Assam India +91-3712-258508, +91-3712-258836 +91-3712-258534
| | - Dhiraj Dutta
- Defence Research Laboratory Post Bag No. 2 Tezpur 784001 Assam India +91-3712-258508, +91-3712-258836 +91-3712-258534
| | - Arpan Sarkar
- Defence Research Laboratory Post Bag No. 2 Tezpur 784001 Assam India +91-3712-258508, +91-3712-258836 +91-3712-258534
| | - Pronobesh Chattopadhyay
- Defence Research Laboratory Post Bag No. 2 Tezpur 784001 Assam India +91-3712-258508, +91-3712-258836 +91-3712-258534
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A study of synthesizing stable super-slip carbon nanotubes by grafting octadecylamine. J Colloid Interface Sci 2019; 540:126-133. [DOI: 10.1016/j.jcis.2019.01.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 11/20/2022]
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7
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Xin J, Liu C, Qiu Z, Zhou J, Wang Q, Liu Y, Guo B. Exploration of the modification of carbon-based substrate surfaces in aqueous rechargeable zinc ion batteries. RSC Adv 2018; 8:26906-26909. [PMID: 35541038 PMCID: PMC9083365 DOI: 10.1039/c8ra04643c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 07/16/2018] [Indexed: 11/21/2022] Open
Abstract
The hydrophobic surfaces of carbon-based substrates lead to a huge interface impedance in aqueous rechargeable zinc ion batteries (ZIBs). Herein, we try to regulate the morphology and investigate the effects of polar groups on the substrate surface. With the treated substrate, the cyclic and rate performances of MnO2 electrodes are improved by ∼42.5% and 97 mA h g−1. Oxygen-containing groups can be introduced to carbon paper surfaces by acidification. They improve the electrochemical performances and affect the charge-discharge behaviors of the MnO2/CP cathode by reducing the interface resistance.![]()
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Affiliation(s)
- Jing Xin
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Chang Liu
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Ziwen Qiu
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Jingjing Zhou
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Qian Wang
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Yang Liu
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
| | - Bingkun Guo
- Materials Genome Institute
- Shanghai University
- Shanghai
- China
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8
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Li H, Gu J, Liu C, Wang D, Qu C. Thermal and mechanical properties of cyanate ester resin modified with acid-treated multiwalled carbon nanotubes. HIGH PERFORM POLYM 2016. [DOI: 10.1177/0954008316675208] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Multiwalled carbon nanotubes (MWCNTs) that were treated with mixed acids were used to reinforce the cyanate ester resin. Meanwhile, the relationship among structure, morphology, and property of the modified resin was investigated. The treated MWCNTs were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis, and X-ray photoelectron spectroscopy (XPS). The XPS results showed that the oxygen content in the treated MWCNTs was higher than that of untreated MWCNTs and the FTIR results indicated the presence of oxygen-containing functional groups on the treated MWCNTs. The microstructure of the resin was characterized by scanning electron microscopy and transmission electron microscopy. The results showed that the dispersion properties of the treated MWCNTs in the resin matrix were improved and compared with the untreated analogue. Addition of MWCNTs to the resin had little effect on the thermodynamic properties of the resin system. Upon addition of 0.8 wt% of MWCNTs to the resin, the glass transition temperature of the cured resin changed from 298°C to 285°C, maintaining a relatively high value. For the resins containing 0.6 wt% of treated MWCNTs, the plane strain critical stress intensity factor and plane strain critical strain energy release rate in the system were determined to be 1.39 Pa·m0.5 and 364 J m−2, respectively, and the fracture toughness is increased by 45.7 and 76.0%, respectively. Furthermore, the modified resin system exhibits excellent toughness and thermal properties. Therefore, the modified resin may be suitable for future applications involving high performance composites and adhesives.
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Affiliation(s)
- Hongfeng Li
- College of Material Science and Engineering, Northeast Forestry University, Harbin, People’s Republic of China
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, People’s Republic of China
| | - Jiyou Gu
- College of Material Science and Engineering, Northeast Forestry University, Harbin, People’s Republic of China
| | - Changwei Liu
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, People’s Republic of China
| | - Dezhi Wang
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, People’s Republic of China
| | - Chunyan Qu
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin, People’s Republic of China
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9
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Xue A, Yuan ZW, Sun Y, Cao AY, Zhao HZ. Electro-oxidation of perfluorooctanoic acid by carbon nanotube sponge anode and the mechanism. CHEMOSPHERE 2015; 141:120-126. [PMID: 26172515 DOI: 10.1016/j.chemosphere.2015.06.095] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 06/24/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
As an emerging persistent organic pollutant (POPs), perfluorooctanoic acid (PFOA) exists widely in natural environment. It is of particular significance to develop efficient techniques to remove low-concentration PFOA from the contaminated waters. In this work, we adopted a new material, carbon nanotube (CNT) sponge, as electrode to enhance electro-oxidation and achieve high removal efficiency of low-concentration (100μgL(-1)) PFOA from water. CNT sponge was pretreated by mixed acids to improve the surface morphology, hydrophilicity and the content of carbonyl groups on the surface. The highest removal efficiencies for low-concentration PFOA electrolyzed by acid-treated CNT sponge anode proved higher than 90%. The electro-oxidation mechanism of PFOA on CNT sponge anode was also discussed. PFOA is adsorbed on the CNT sponge rapidly increasing the concentration of PFOA on anode surface. When the potential on the anode is adjusted to more than 3.5V, the adsorbed PFOA undergoes electrochemically oxidation and hydrolysis to produce shorter-chain perfluorocarboxylic acids with less CF2 unit. The efficient electro-oxidation of PFOA by CNT sponge anode is due to the combined effect of adsorption and electrochemical oxidation. These findings provide an efficient method to remove actual concentration PFOA from water.
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Affiliation(s)
- An Xue
- Department of Environmental Engineering, Peking University, Beijing 100871, People's Republic of China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, People's Republic of China
| | - Zi-Wen Yuan
- Department of Environmental Engineering, Peking University, Beijing 100871, People's Republic of China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, People's Republic of China
| | - Yan Sun
- Department of Environmental Engineering, Peking University, Beijing 100871, People's Republic of China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, People's Republic of China
| | - An-Yuan Cao
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Hua-Zhang Zhao
- Department of Environmental Engineering, Peking University, Beijing 100871, People's Republic of China; The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871, People's Republic of China.
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Moradi O, Sadegh H, Shahryari-Ghoshekandi R, Norouzi M. Application of Carbon Nanotubes in Nanomedicine. HANDBOOK OF RESEARCH ON DIVERSE APPLICATIONS OF NANOTECHNOLOGY IN BIOMEDICINE, CHEMISTRY, AND ENGINEERING 2015. [DOI: 10.4018/978-1-4666-6363-3.ch006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Carbon Nanotubes (CNTs) have become a technological field with great potential since they can be applied in almost every aspect of modern life. One of the sectors where CNTs are expected to play a vital role is the field of medical science. This chapter focuses on the latest developments in applications of CNTs for nanomedicine. A brief history of CNTs and a general introduction to the field are presented. Then, the preparation of CNTs that makes them ideal for use in medical applications is highlighted. Examples of common applications, including cell penetration, drug delivery, and gene delivery and imaging are given. Finally, the toxicity of carbon nanotubes is discussed.
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Begum A, Tripathi KM, Sarkar S. Water-Induced Formation, Characterization, and Photoluminescence of Carbon Nanotube-Based Composites of Gadolinium(III) and Platinum(II) Dithiolenes. Chemistry 2014; 20:16657-61. [DOI: 10.1002/chem.201404461] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Indexed: 11/10/2022]
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12
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Nechitailov AA, Glebova NV. Mechanism of the effect of oxygen-modified carbon nanotubes on the kinetics of oxygen electroreduction on platinum. RUSS J ELECTROCHEM+ 2014. [DOI: 10.1134/s1023193514080102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Wang JTW, Cabana L, Bourgognon M, Kafa H, Protti A, Venner K, Shah AM, Sosabowski J, Mather SJ, Roig A, Ke X, Tendeloo GV, de Rosales RTM, Tobias G, Al-Jamal KT. Magnetically Decorated Multi-Walled Carbon Nanotubes as Dual MRI and SPECT Contrast Agents. ADVANCED FUNCTIONAL MATERIALS 2014; 24:1880-1894. [PMID: 26097444 PMCID: PMC4471136 DOI: 10.1002/adfm.201302892] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Carbon nanotubes (CNTs) have been proposed as one of the most promising nanomaterials to be used in biomedicine for their applications in drug/gene delivery as well as biomedical imaging. The present study developed radio-labeled iron oxide decorated multi-walled CNTs (MWNT) as dual magnetic resonance (MR) and single photon emission computed tomography (SPECT) imaging agents. Hybrids containing different amounts of iron oxide were synthesized by in situ generation. Physicochemical characterisations revealed the presence of superparamagnetic iron oxide nanoparticles (SPION) granted the magnetic properties of the hybrids. Further comprehensive examinations including high resolution transmission electron microscopy (HRTEM), fast Fourier transform simulations (FFT), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) assured the conformation of prepared SPION as γ-Fe2O3. High r2 relaxivities were obtained in both phantom and in vivo MRI compared to the clinically approved SPION Endorem®. The hybrids were successfully radio-labeled with technetium-99m through a functionalized bisphosphonate and enabled SPECT/CT imaging and γ-scintigraphy to quantitatively analyze the biodistribution in mice. No abnormality was found by histological examination and the presence of SPION and MWNT were identified by Perls stain and Neutral Red stain, respectively. TEM images of liver and spleen tissues showed the co-localization of SPION and MWNT within the same intracellular vesicles, indicating the in vivo stability of the hybrids after intravenous injection. The results demonstrated the capability of the present SPION-MWNT hybrids as dual MRI and SPECT contrast agents for in vivo use.
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Affiliation(s)
- Julie Tzu-Wen Wang
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, UK
| | - Laura Cabana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Maxime Bourgognon
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, UK
| | - Houmam Kafa
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, UK
| | - Andrea Protti
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, St. Thomas’ Hospital, London SE1 7EH, UK
- Cardiovascular Division, James Black Centre, King’s College London British Heart Foundation Centre of Excellence, London SE5 9NU, UK
| | - Kerrie Venner
- UCL Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Ajay M. Shah
- Cardiovascular Division, James Black Centre, King’s College London British Heart Foundation Centre of Excellence, London SE5 9NU, UK
| | - Jane Sosabowski
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1A 7BE, UK
| | - Stephen J. Mather
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, London EC1A 7BE, UK
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Xiaoxing Ke
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Gustaaf Van Tendeloo
- Electron Microscopy for Materials Research (EMAT), University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium
| | - Rafael T. M. de Rosales
- Division of Imaging Sciences and Biomedical Engineering, King’s College London, St. Thomas’ Hospital, London SE1 7EH, UK
| | - Gerard Tobias
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Khuloud T. Al-Jamal
- Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, UK
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Maiti UN, Lee WJ, Lee JM, Oh Y, Kim JY, Kim JE, Shim J, Han TH, Kim SO. 25th anniversary article: Chemically modified/doped carbon nanotubes & graphene for optimized nanostructures & nanodevices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:40-66. [PMID: 24123343 DOI: 10.1002/adma.201303265] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Indexed: 05/25/2023]
Abstract
Outstanding pristine properties of carbon nanotubes and graphene have limited the scope for real-life applications without precise controllability of the material structures and properties. This invited article to celebrate the 25th anniversary of Advanced Materials reviews the current research status in the chemical modification/doping of carbon nanotubes and graphene and their relevant applications with optimized structures and properties. A broad aspect of specific correlations between chemical modification/doping schemes of the graphitic carbons with their novel tunable material properties is summarized. An overview of the practical benefits from chemical modification/doping, including the controllability of electronic energy level, charge carrier density, surface energy and surface reactivity for diverse advanced applications is presented, namely flexible electronics/optoelectronics, energy conversion/storage, nanocomposites, and environmental remediation, with a particular emphasis on their optimized interfacial structures and properties. Future research direction is also proposed to surpass existing technological bottlenecks and realize idealized graphitic carbon applications.
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Affiliation(s)
- Uday Narayan Maiti
- Center for Nanomaterials and Chemical Reactions Institute for Basic Science, (IBS), Department of Materials Science & Engineering, KAIST, Daejeon, 305-701, Republic of Korea
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15
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Affiliation(s)
- Petr Král
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
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Hong SY, Kreizman R, Rosentsveig R, Zak A, Sloan J, Enyashin AN, Seifert G, Green MLH, Tenne R. One‐ and Two‐Dimensional Inorganic Crystals inside Inorganic Nanotubes. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000456] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sung You Hong
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Ronen Kreizman
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
| | - Rita Rosentsveig
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
| | - Alla Zak
- NanoMaterials, Ltd. Weizmann Science Park, Nes Ziona 74140, Israel
| | - Jeremy Sloan
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
| | - Andrey N. Enyashin
- Physical Chemistry, Technical University Dresden, 01062 Dresden, Germany
- Institute of Solid State Chemistry UB RAS, 620990 Ekaterinburg, Russia
| | - Gotthard Seifert
- Physical Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Malcolm L. H. Green
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
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Chen X, Eckhard K, Zhou M, Bron M, Schuhmann W. Electrocatalytic Activity of Spots of Electrodeposited Noble-Metal Catalysts on Carbon Nanotubes Modified Glassy Carbon. Anal Chem 2009; 81:7597-603. [DOI: 10.1021/ac900937k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xingxing Chen
- Analytische Chemie, Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
| | - Kathrin Eckhard
- Analytische Chemie, Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
| | - Min Zhou
- Analytische Chemie, Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
| | - Michael Bron
- Analytische Chemie, Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
| | - Wolfgang Schuhmann
- Analytische Chemie, Elektroanalytik & Sensorik, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44780 Bochum, Germany
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Tessonnier JP, Rosenthal D, Girgsdies F, Amadou J, Bégin D, Pham-Huu C, Sheng Su D, Schlögl R. Influence of the graphitisation of hollow carbon nanofibers on their functionalisation and subsequent filling with metal nanoparticles. Chem Commun (Camb) 2009:7158-60. [DOI: 10.1039/b916150c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Turanov AN, Karandashev VK, Evseeva NK, Kolesnikov NN, Borisenko DN. The sorption properties of carbon nanotubes modified with tetraphenylmethylenediphosphine dioxide in nitric acid media. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2008. [DOI: 10.1134/s0036024408130116] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Qin F, Shen W, Wang C, Xu H. Selective hydrogenation of citral over a novel platinum/MWNTs nanocomposites. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2008.03.055] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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21
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Khan MAK, Kerman K, Petryk M, Kraatz HB. Noncovalent Modification of Carbon Nanotubes with Ferrocene−Amino Acid Conjugates for Electrochemical Sensing of Chemical Warfare Agent Mimics. Anal Chem 2008; 80:2574-82. [DOI: 10.1021/ac7022876] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammad A. K. Khan
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9 Canada, Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON, N6A 5B7 Canada, and DRDC Suffield, P.O. Box 4000, Station Main, Medicine Hat, AB, T1A 8K6 Canada
| | - Kagan Kerman
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9 Canada, Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON, N6A 5B7 Canada, and DRDC Suffield, P.O. Box 4000, Station Main, Medicine Hat, AB, T1A 8K6 Canada
| | - Michael Petryk
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9 Canada, Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON, N6A 5B7 Canada, and DRDC Suffield, P.O. Box 4000, Station Main, Medicine Hat, AB, T1A 8K6 Canada
| | - Heinz-Bernhard Kraatz
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, S7N 5C9 Canada, Department of Chemistry, The University of Western Ontario, 1151 Richmond Street, London, ON, N6A 5B7 Canada, and DRDC Suffield, P.O. Box 4000, Station Main, Medicine Hat, AB, T1A 8K6 Canada
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Leela Mohana Reddy A, Ramaprabhu S. Synthesis and Characterization of Magnetic Metal-encapsulated Multi-walled Carbon Nanobeads. NANOSCALE RESEARCH LETTERS 2008; 3:76. [PMCID: PMC3244788 DOI: 10.1007/s11671-008-9116-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2007] [Accepted: 01/09/2008] [Indexed: 05/29/2023]
Abstract
A novel, cost-effective, easy and single-step process for the synthesis of large quantities of magnetic metal-encapsulated multi-walled carbon nanobeads (MWNB) and multi-walled carbon nanotubes (MWNT) using catalytic chemical vapour deposition of methane over Mischmetal-based AB3alloy hydride catalyst is presented. The growth mechanism of metal-encapsulated MWNB and MWNT has been discussed based on the catalytically controlled root-growth mode. These carbon nanostructures have been characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM and HRTEM), energy dispersive analysis of X-ray (EDAX) and thermogravimetric analysis (TGA). Magnetic properties of metal-filled nanobeads have been studied using PAR vibrating sample magnetometer up to a magnetic field of 10 kOe, and the results have been compared with those of metal-filled MWNT.
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Affiliation(s)
- A Leela Mohana Reddy
- Department of Physics, Alternative Energy Technology Laboratory, Indian Institute of Technology Madras, Chennai, 600036, India
| | - S Ramaprabhu
- Department of Physics, Alternative Energy Technology Laboratory, Indian Institute of Technology Madras, Chennai, 600036, India
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Teng F, Liang S, Gaugeu B, Zong R, Yao W, Zhu Y. Carbon nanotubes-templated assembly of LaCoO3 nanowires at low temperatures and its excellent catalytic properties for CO oxidation. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2007.02.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Affiliation(s)
- Boon K Teo
- Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607, USA.
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Chen X, Li N, Eckhard K, Stoica L, Xia W, Assmann J, Muhler M, Schuhmann W. Pulsed electrodeposition of Pt nanoclusters on carbon nanotubes modified carbon materials using diffusion restricting viscous electrolytes. Electrochem commun 2007. [DOI: 10.1016/j.elecom.2007.01.034] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Solla-Gullón J, Lafuente E, Aldaz A, Martínez M, Feliu J. Electrochemical characterization and reactivity of Pt nanoparticles supported on single-walled carbon nanotubes. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.11.051] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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He X, Jiang L, Fan C, Lei J, Zheng M. Chemical elimination of amorphous carbon on amorphous carbon nanotubes and its electrochemical performance. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Chiu WM, Chang YA. Chemical modification of multiwalled carbon nanotube with the liquid phase method. J Appl Polym Sci 2007. [DOI: 10.1002/app.26633] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Villers D, Sun SH, Serventi AM, Dodelet JP, Désilets S. Characterization of Pt Nanoparticles Deposited onto Carbon Nanotubes Grown on Carbon Paper and Evaluation of This Electrode for the Reduction of Oxygen. J Phys Chem B 2006; 110:25916-25. [PMID: 17181240 DOI: 10.1021/jp065923g] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Multiwalled carbon nanotubes (MWCNTs) were grown on the fibers of a commercial porous carbon paper used as carbon-collecting electrodes in fuel cells. The tubes were then covered with Pt nanoparticles in order to test these gas diffusion electrodes (GDEs) for oxygen reduction in H2SO4 solution and in H2/O2 fuel cells. The Pt nanoparticles were characterized by cyclic voltammetry, transmission electron microscopy, and X-ray photoelectron spectroscopy. The majority of the Pt particles are 3 nm in size with a mean size of 4.1 nm. They have an electrochemically active surface area of 60 m2/g Pt for Pt loadings of 0.1-0.45 mg Pt/cm2. Although the electroactive Pt surface area is larger for commercial electrodes of similar loadings, Pt/MWCNT electrodes largely outperform the commercial electrode for the oxygen reduction reaction in GDE experiments using H2SO4 at pH 1. On the other hand, when the same electrodes are used as the cathode in a H2/O2 fuel cell, they perform only slightly better than the commercial electrodes in the potential range going from approximately 0.9 to approximately 0.7 V and have a lower performance at lower voltages.
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Affiliation(s)
- D Villers
- INRS-Energie, Matériaux et Télécommunications, 1650 Boulevard Lionel Boulet, Varennes, Québec, Canada, J3X 1S2
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31
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Electroreduction of oxygen on multi-walled carbon nanotubes modified highly oriented pyrolytic graphite electrodes in alkaline solution. J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.09.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Yung KF, Wong WT. Synthesis and Catalytic Studies of Uniform Os & Os–Pd Nanoparticles Supported on MWNTs. J CLUST SCI 2006. [DOI: 10.1007/s10876-006-0079-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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33
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Sen R, Satishkumar BC, Raina G, Rao CNR. Structures and Images of Novel Derivatives of Carbon Nanotubes, Fullerenes and Related New Carbon Forms. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/15363839708015903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo J, Li Y, Wu S, Li W. The effects of gamma-irradiation dose on chemical modification of multi-walled carbon nanotubes. NANOTECHNOLOGY 2005; 16:2385-2388. [PMID: 20818022 DOI: 10.1088/0957-4484/16/10/065] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Multi-walled carbon nanotubes (MWNTs) irradiated with gamma-rays were subjected to chemical modification with thionyl chloride and decylamine. Products from chemical treatment were characterized by both FTIR and Raman spectra. Element analysis (EA) and thermogravimetric analysis (TGA) for the modified soluble MWNTs (s-MWNTs) indicated that gamma-radiation increased the concentration of functional groups bound to MWNTs, which arose due to the increasing number of defect sites created on the MWNTs by gamma-photons. Compared with untreated MWNTs, gamma-irradiation significantly enhanced the solubility of MWNTs in acetone and tetrahydrofuran (THF). We therefore conclude that gamma-irradiation provides a novel approach to prepare various functionalized modifications of carbon nanotubes (CNTs).
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Affiliation(s)
- Jinxue Guo
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People's Republic of China. Graduate School of the Chinese Academy of Sciences, Shanghai 201800, People's Republic of China
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36
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Waje MM, Wang X, Li W, Yan Y. Deposition of platinum nanoparticles on organic functionalized carbon nanotubes grown in situ on carbon paper for fuel cells. NANOTECHNOLOGY 2005; 16:S395-400. [PMID: 21727458 DOI: 10.1088/0957-4484/16/7/013] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Deposition of small Pt nanoparticles of the order of 2-2.5 nm on carbon nanotubes (CNTs) grown directly on carbon paper is demonstrated in this work. Sulfonic acid functionalization of CNTs is used as a means to facilitate the uniform deposition of Pt on the CNT surface. The organic molecules attached covalently to the CNT surface via electrochemical reduction of corresponding diazonium salts are treated with concentrated sulfuric acid and the sulfonic acid sites thus attached are used as molecular sites for Pt ion adsorption, which are subsequently reduced to yield the small Pt nanoparticles. Cyclic voltammograms reveal that, after removal of the organic groups during high temperature reduction, these Pt nanoparticles are in electrical contact with the carbon paper backing. A typical Pt loading of 0.09 mg cm(-2) is achieved, that shows higher specific surface area of Pt than an E-TEK electrode with Pt loading of 0.075 mg cm(-2). A membrane and electrode assembly (MEA) is prepared with a Pt/CNT electrode as cathode and an E-TEK electrode as anode, and it offers better performance than a conventional E-TEK MEA.
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Affiliation(s)
- Mahesh M Waje
- Department of Chemical and Environmental Engineering, and College of Engineering-Center for Environmental Research and Technology, University of California, Riverside, CA 92521, USA
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Guo DJ, Li HL. High dispersion and electrocatalytic properties of palladium nanoparticles on single-walled carbon nanotubes. J Colloid Interface Sci 2005; 286:274-9. [PMID: 15848428 DOI: 10.1016/j.jcis.2004.12.042] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2004] [Accepted: 12/17/2004] [Indexed: 11/17/2022]
Abstract
Palladium (Pd) nanoparticles were electrochemically dispersed on single-walled carbon nanotubes (SWNTs) by electroreduction of octahedral Pd(IV) complex formed on the SWNT surface. The structure and nature of the resulting Pd-SWNT composites were characterized by transmission electron microscopy and X-ray diffraction. The electrocatalytic properties of the Pd/SWNT electrode for hydrazine oxidation have been investigated by cyclic voltammetry; high electrocatalytic activity of the Pd/SWNT electrode can be observed. This may be attributed to the high dispersion of palladium catalysts and the particular properties of SWNT supports. The results imply that the Pd-SWNT composite has good potential applications in fuel cells.
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Affiliation(s)
- Dao-Jun Guo
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China
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Piao Y, Lim H, Chang JY, Lee WY, Kim H. Nanostructured materials prepared by use of ordered porous alumina membranes. Electrochim Acta 2005. [DOI: 10.1016/j.electacta.2004.12.043] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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39
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Guo DJ, Li HL. High dispersion and electrocatalytic properties of Pt nanoparticles on SWNT bundles. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2004.07.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Whitby RLD, Hsu WK, Zhu YQ, Kroto HW, Walton DRM. Novel nanoscale architectures: coated nanotubes and other nanowires. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2004; 362:2127-2142. [PMID: 15370474 DOI: 10.1098/rsta.2004.1432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Research has demonstrated that the structure and properties of a nanoscale system are inextricably linked. The advent of nanoscale research in 1991 relied upon nanoscale material production through random formation techniques, such as arc discharge, and the inherent properties and morphology of the system were therefore difficult to control. This article reviews some of the methods and ideas that have developed since the inception of nanotechnology, leading to fine control over the morphology of nanoscale systems and highlighting some interesting nanoscale architecture.
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Affiliation(s)
- R L D Whitby
- Department of Chemistry, School of Life Sciences, University of Sussex, Falmer, Brighton, Sussex BN1 9QJ, UK.
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41
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Electrochemical behavior of multi-wall carbon nanotubes and electrocatalysis of toluene-filled nanotube film on gold electrode. Electrochim Acta 2004. [DOI: 10.1016/j.electacta.2003.09.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Fukuoka A, Araki H, Sakamoto Y, Inagaki S, Fukushima Y, Ichikawa M. Palladium nanowires and nanoparticles in mesoporous silica templates. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(02)01541-4] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Choi HC, Shim M, Bangsaruntip S, Dai H. Spontaneous reduction of metal ions on the sidewalls of carbon nanotubes. J Am Chem Soc 2002; 124:9058-9. [PMID: 12149003 DOI: 10.1021/ja026824t] [Citation(s) in RCA: 617] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nanotube/nanoparticle hybrid structures are prepared by forming Au and Pt nanoparticles on the sidewalls of single-walled carbon nanotubes. Reducing agent or catalyst-free electroless deposition, which purely utilizes the redox potential difference between Au3+, Pt2+, and the carbon nanotube, is the main driving force for this reaction. It is also shown that carbon nanotubes act as a template for wire-like metal structures. The successful formation of the hybrid structures is monitored by atomic force microscopy (AFM) and electrical measurements.
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Affiliation(s)
- Hee Cheul Choi
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
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45
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Affiliation(s)
- Tijmen G. Ros
- Department in Inorganic Chemistry and Catalysis Debye institute, Utrecht University P.O. box 80083, 3508 TB Utrecht (The Netherlands) Fax: (+31) 030‐2511027
| | - Adrianus J. van Dillen
- Department in Inorganic Chemistry and Catalysis Debye institute, Utrecht University P.O. box 80083, 3508 TB Utrecht (The Netherlands) Fax: (+31) 030‐2511027
| | - John W. Geus
- Department in Inorganic Chemistry and Catalysis Debye institute, Utrecht University P.O. box 80083, 3508 TB Utrecht (The Netherlands) Fax: (+31) 030‐2511027
| | - Diederik C. Koningsberger
- Department in Inorganic Chemistry and Catalysis Debye institute, Utrecht University P.O. box 80083, 3508 TB Utrecht (The Netherlands) Fax: (+31) 030‐2511027
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Abstract
Carbon nanofibres of the fishbone and parallel types were surface-oxidised by several methods. The untreated and oxidised fibres were studied with infrared spectroscopy, thermogravimetric analysis and X-ray photoelectron spectroscopy (XPS). Oxidation in a mixture of concentrated nitric and sulfuric acids proved to be the most effective method for creating oxygen-containing surface groups. This treatment results not only in the formation of carboxy and carboxyic anhydride groups, but also in the generation of ether-type oxygen groups between graphitic layers that are puckered at their edges. The IR spectroscopic data clearly show that the formation of oxygen-containing surface groups occurs at defect sites on the carbon nanofibres and that oxidation proceeds via carbonyl groups and other oxides to carboxy and carboxyic anhydride groups. Owing to the presence of defects, the two types of fibre have similar surface reactivities. With parallel nanofibres, in contrast to fishbone fibres, the macroscopic structure was severely affected by treatment with HNO(3)/H(2)SO(4). The HNO(3)/H(2)SO(4)-treated fibres are highly wettable by water.
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Affiliation(s)
- Tijmen G Ros
- Department in Inorganic Chemistry and Catalysis, Debye Institute, Utrecht University, P.O. Box 80083, 3508 TB Utrecht, The Netherlands
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47
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Determination of the acidic sites of purified single-walled carbon nanotubes by acid–base titration. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00851-x] [Citation(s) in RCA: 263] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Nanotubes: A Revolution in Materials Science and Electronics. FULLERENES AND RELATED STRUCTURES 1999. [DOI: 10.1007/3-540-68117-5_6] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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