1
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Asture A, Rawat V, Srivastava C, Vaya D. Investigation of properties and applications of ZnO polymer nanocomposites. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04243-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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2
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Singh M, Dey ES, Bhand S, Dicko C. Supercritical Carbon Dioxide Impregnation of Gold Nanoparticles Demonstrates a New Route for the Fabrication of Hybrid Silk Materials. INSECTS 2021; 13:insects13010018. [PMID: 35055861 PMCID: PMC8777700 DOI: 10.3390/insects13010018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/14/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022]
Abstract
How many nanoparticles can we load in a fiber? How much will leak? Underlying is the relatively new question of the “space available” in fibers for nanoparticle loading. Here, using supercritical carbon dioxide (scCO2) as a carrier fluid, we explored the impregnation in four Indian silks (Mulberry, Eri, Muga, and Tasar) with five standard sizes of gold nanoparticles (5, 20, 50, 100 and 150 nm in diameter). All silks could be permanently impregnated with nanoparticles up to 150 nm in size under scCO2 impregnation. Accompanying structural changes indicated that the amorphous silk domains reorganized to accommodate the gold NPs. The mechanism was studied in detail in degummed Mulberry silk fibers (i.e., without the sericin coating) with the 5 nm nanoparticle. The combined effects of concentration, time of impregnation, scCO2 pressure, and temperature showed that only a narrow set of conditions allowed for permanent impregnation without deterioration of the properties of the silk fibers.
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Affiliation(s)
- Manish Singh
- Pure and Applied Biochemistry, Chemistry Deptartment, Lund University, Naturvetarvägen 14, 22362 Lund, Sweden; (M.S.); (E.S.D.)
| | - Estera S. Dey
- Pure and Applied Biochemistry, Chemistry Deptartment, Lund University, Naturvetarvägen 14, 22362 Lund, Sweden; (M.S.); (E.S.D.)
| | - Sunil Bhand
- Deptartment of Chemistry, Birla Institute of Technology and Science, KK Birla Goa Campus, Pilani 403726, Zuarinagar, Goa, India;
| | - Cedric Dicko
- Pure and Applied Biochemistry, Chemistry Deptartment, Lund University, Naturvetarvägen 14, 22362 Lund, Sweden; (M.S.); (E.S.D.)
- Correspondence:
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3
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de Aguiar MF, Leal ANR, de Melo CP, Alves KGB. Polypyrrole-coated electrospun polystyrene films as humidity sensors. Talanta 2021; 234:122636. [PMID: 34364445 DOI: 10.1016/j.talanta.2021.122636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 01/09/2023]
Abstract
We report the preparation of flexible polystyrene/polypyrrole (PS/PPy) mats and their successful use as a resistive humidity sensor. These composite membranes were prepared by first obtaining PS films through the electrospinning technique, and then incorporating PPy chains by an in situ chemical polymerization of the pyrrole monomer. The PS fibers were homogeneously distributed, with diameters that obeyed a normal distribution with an average value of (1.04 ± 0.12) μm. The deposition of conducting PPy chains on the surface of the PS fibers was confirmed after characterizing the PS/PPy mats by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), contact angle measurements, and electrochemical impedance spectroscopy (EIS). When used as humidity sensors, the PS/PPy mats exhibited a sensor response of 128.6%, with fast response ((54.9 ± 3.5)s) and recovery times ((76.8 ± 11.1)s), and stable response under different humidity conditions over several days. These performance characteristics compare favorably to those of previous resistive humidity sensors discussed in the literature.
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Affiliation(s)
- Maurício F de Aguiar
- Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Andressa N R Leal
- Programa de Pós-Graduação Em Ciência de Materiais, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Celso P de Melo
- Departamento de Física, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil
| | - Kleber G B Alves
- Departamento de Engenharia Mecânica, Universidade Federal de Pernambuco, Recife, PE, 50670-901, Brazil.
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4
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Khan FSA, Mubarak NM, Tan YH, Karri RR, Khalid M, Walvekar R, Abdullah EC, Mazari SA, Nizamuddin S. Magnetic nanoparticles incorporation into different substrates for dyes and heavy metals removal-A Review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43526-43541. [PMID: 32909134 DOI: 10.1007/s11356-020-10482-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Substantial discharge of hazardous substances, especially dyes and heavy metal ions to the environment, has become a global concern due to many industries neglecting the environmental protocols in waste management. A massive discharge of contaminantsfrom different anthropogenic activities, can pose alarming threats to living species and adverse effect to the ecosystem stability. In the process of treating the polluted water, various methods and materials are used. Hybrid nanocomposites have attained numerous interest due to the combination of remarkable features of the organic and inorganic elements in a single material. In this regards, carbon and polymer based nanocomposites have gained particular interest because of their tremendous magnetic properties and stability. These nanocomposites can be fabricated using several approaches that include filling, template, hydrothermal, pulsed-laser irradiation, electro-spinning, detonation induced reaction, pyrolysis, ball milling, melt-blending, and many more. Moreover, carbon-based and polymer-based magnetic nanocomposites have been utilized for an extensive number of applications such as removal of heavy metal and dye adsorbents, magnetic resonance imaging, and drug delivery. This review emphasized mainly on the production of magnetic carbon and polymer nanocomposites employing various approaches and their applications in water and wastewater treatment. Furthermore, the future opportunities and challenges in applying magnetic nanocomposites for heavy metal ion and dye removal from water and wastewater treatment plant.
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Affiliation(s)
- Fahad Saleem Ahmed Khan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Sarawak, Malaysia
| | - Nabisab Mujawar Mubarak
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Sarawak, Malaysia.
| | - Yie Hua Tan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, 98009, Sarawak, Malaysia
| | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, Brunei Darussalam
| | - Mohammad Khalid
- Graphene & Advanced 2D Materials Research Group (GAMRG), School of Science and Technology, Sunway University, No. 5, Jalan University, Bandar Sunway, 47500, Subang Jaya, Selangor, Malaysia
| | - Rashmi Walvekar
- Department of Chemical Engineering, School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - Ezzat Chan Abdullah
- Department of Chemical Process Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia (UTM), Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | - Shaukat Ali Mazari
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi, 74800, Pakistan
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5
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Kumar R, Travas-Sejdic J, Padhye LP. Conducting polymers-based photocatalysis for treatment of organic contaminants in water. CHEMICAL ENGINEERING JOURNAL ADVANCES 2020. [DOI: 10.1016/j.ceja.2020.100047] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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6
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Innovative natural polymer metal nanocomposites and their antimicrobial activity. Int J Biol Macromol 2019; 136:586-596. [DOI: 10.1016/j.ijbiomac.2019.06.114] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/31/2019] [Accepted: 06/16/2019] [Indexed: 02/06/2023]
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7
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Zhang Z, Liu X, Li D, Lei Y, Gao T, Wu B, Zhao J, Wang Y, Zhou G, Yao H. Mechanism of ultrasonic impregnation on porosity of activated carbons in non-cavitation and cavitation regimes. ULTRASONICS SONOCHEMISTRY 2019; 51:206-213. [PMID: 30385244 DOI: 10.1016/j.ultsonch.2018.10.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/20/2018] [Accepted: 10/16/2018] [Indexed: 06/08/2023]
Abstract
Ultrasonic impregnation has proven to be an effective method to improve surface area and pore volume during preparation of activated carbons. However, the mechanism by which the promotion effect of ultrasonic impregnation is still ambiguous. Fundamental wave pressure (FWP) and broadband integrated pressure (BIP) were used to estimate the non-cavitation (vibration) energy and cavitation energy, respectively. The effects of FWP and BIP on the pore volume, surface area, surface functional groups, and microcosmic morphology were investigated in non-cavitation and cavitation regimes. Ultrasonic vibration promoted the surface enlargement and pore development of activated carbons, and it mainly affected the development of mesopore volume (Vmes) in both the pore volume and the mesopore-size-distribution range. The Vmes was enhanced by 60%-100% in the non-cavitation regime. Ultrasonic cavitation also facilitated porosity development of activated carbons, and it mainly affected the development of specific surface area (SBET) and micropore volume (Vmic). The excessive cavitation led to a decrease of the porosity of activated carbons, so the BIP should be optimized during impregnation. The highest SBET, Vmic, and Vmes for activated carbons were obtained by in the presence of both FWP and BIP, which were enhanced by 29.05%, 30.23%, and 113.33%, respectively, compared with the corresponding value for the activated carbon prepared without using ultrasonic impregnation. This work provided new insight into the role of the acoustic energy present during impregnation in tuning properties of activated carbons.
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Affiliation(s)
- Zongbo Zhang
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
| | - Xiaoyang Liu
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Dawei Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, PR China.
| | - Yuqi Lei
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Tiantian Gao
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Baogui Wu
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Jiawei Zhao
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yankui Wang
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Guangyan Zhou
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Huimin Yao
- Technology Development Corporation, Qingdao University of Technology, Qingdao 266033, PR China
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8
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Bandak J, Petzold J, Hatahet H, Prager A, Kersting B, Elsner C, Abel B. Interconnected electrocatalytic Pt-metal networks by plasma treatment of nanoparticle-peptide fibril assemblies. RSC Adv 2019; 9:5558-5569. [PMID: 35515953 PMCID: PMC9060786 DOI: 10.1039/c8ra08201d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/24/2019] [Indexed: 11/21/2022] Open
Abstract
Noble metal catalysts possess outstanding catalytic behaviors, photocatalysis, electrocatalysis and many other applications, when interconnected via peptide fibrils.
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Affiliation(s)
- J. Bandak
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
| | - J. Petzold
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
| | - H. Hatahet
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
| | - A. Prager
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
| | - B. Kersting
- Institute of Inorganic Chemistry
- University Leipzig
- D-04103 Leipzig
- Germany
| | - Ch. Elsner
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
| | - B. Abel
- Leibniz Institute of Surface Engineering (IOM)
- Department Functional Surfaces
- D-04318 Leipzig
- Germany
- Wilhelm-Ostwald-Institute of Physical and Theoretical Chemistry
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9
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Lin L, Yuan M, Sun Z, Li H, Nan C, Sun G, Ma S. The in situ growth of ultrathin Fcc-NiPt nanocrystals on graphene for methanol and formic acid oxidation. Dalton Trans 2018; 47:15131-15140. [PMID: 30310897 DOI: 10.1039/c8dt03175d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the increasing demand for energy, improving the current density of fuel cells is an urgent issue. Here we report a bifunctional electrocatalyst for fuel cells involving methanol or formic acid oxidation. A nanocomposite consisting of 7.2 nm NiPt nanocrystals, which are grown in situ on graphene nanosheets (NiPt/GN), has been prepared via a solution thermal decomposition method. The NiPt/GN nanocatalyst presents specific activities as high as 41.1 mA cm-2 and 42.9 mA cm-2 for methanol oxidation and formic acid oxidation, respectively, outperforming most reported catalysts. Moreover, it retains 76.3% of this activity after 900 cycles of methanol oxidation. Additionally, in comparison with general NiPt nanoparticles, the NiPt/GN nanocatalyst shows higher electrocatalytic activity in methanol and formic acid oxidation. All these results indicate that ultrathin NiPt nanocrystals grown in situ on graphene nanosheet substrates can significantly improve performance as a bifunctional electrocatalyst.
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Affiliation(s)
- Liu Lin
- Beijing Key Laboratory of Energy Conversion and Storage Materials and College of Chemistry, Beijing Normal University, Beijing 100875, China.
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10
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Ultrasound promoted synthesis and properties of chitosan nanocomposites containing carbon nanotubes and silver nanoparticles. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Recent progress in nanocomposites based on conducting polymer: application as electrochemical sensors. INTERNATIONAL NANO LETTERS 2018. [DOI: 10.1007/s40089-018-0238-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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Recent development in hybrid conducting polymers: Synthesis, applications and future prospects. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.09.038] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Ganguly S, Ray D, Das P, Maity PP, Mondal S, Aswal VK, Dhara S, Das NC. Mechanically robust dual responsive water dispersible-graphene based conductive elastomeric hydrogel for tunable pulsatile drug release. ULTRASONICS SONOCHEMISTRY 2018; 42:212-227. [PMID: 29429663 DOI: 10.1016/j.ultsonch.2017.11.028] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/20/2017] [Accepted: 11/20/2017] [Indexed: 06/08/2023]
Abstract
Nanohybrid hydrogels based on pristine graphene with enhanced toughness and dual responsive drug delivery feature is opening a new era for smart materials. Here pristine graphene hydrogels are synthesized by in situ free radical polymerization where graphene platelets are the nanobuiliding blocks to withstand external stress and shows reversible ductility. Such uniqueness is a mere reflection of rubber-like elasticity on the hydrogels. These nanobuilding blocks serve also the extensive physisorption which enhances the physical crosslinking inside the gel matrix. Besides the pH-responsive drug release features, these hydrogels are also implemented as a pulsatile drug delivery device. The electric responsive drug release behaviours are noticed and hypothesized by the formation of conducting network in the polyelectrolytic hydrogel matrix. The hydrogels are also tested as good biocompatibility and feasible cell-attachment during live-dead cell adhesion study. The drug release characteristics can also be tuned by adjusting the conducting filler loading into the gel matrix. As of our knowledge, this type of hydrogels with rubber-like consistency, high mechanical property, tunable and dual responsive drug delivery feature and very good human cell compatible is the first to report.
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Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - Debes Ray
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India
| | - Priti Prasanna Maity
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Subhadip Mondal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India
| | - V K Aswal
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal 721302, India
| | - Narayan Ch Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India; School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India.
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14
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Snoussi Y, Bastide S, Abderrabba M, Chehimi MM. Sonochemical synthesis of Fe 3O 4@NH 2-mesoporous silica@Polypyrrole/Pd: A core/double shell nanocomposite for catalytic applications. ULTRASONICS SONOCHEMISTRY 2018; 41:551-561. [PMID: 29137786 DOI: 10.1016/j.ultsonch.2017.10.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/22/2017] [Accepted: 10/22/2017] [Indexed: 05/18/2023]
Abstract
There is a growing interest in sonochemistry for either the controlled design of nanostructured materials or for the synthesis of polymers and polymer composites. It is fast and highly efficient method that provides materials with exceptional and enhanced structural and chemical properties. Herein, we take advantage of the versatile sonochemical process in order to design core/double layered shell nanocomposite denoted by Fe3O4@NH2-mesoporous silica@ PPy/Pd. This magnetic, multicomponent material was designed in a three-step sono-process: (i) synthesis of magnetic core, (ii) cure of mesoporous silica, and (iii) sonochemical deposition of PPy/Pd. This last step was achieved within 1 h, a much shorter duration compared to conventional routes which usually take several hours to few days. The final nanocomposite can be recovered with a simple magnetic stick. X-ray diffraction patterns highlighted the presence of zerovalent palladium on the surface of the magnetic nanocomposite. The catalytic activity of the solid support was investigated by the study of the p-nitrophenol (p-NP) reduction and the Methyl Orange (MO) degradation in aqueous media. Results showed a very high catalytic efficiency, a high conversion yield of p-NP into 4-aminophenol (more than 94%) and an almost entire degradation of MO (99%) with a fast kinetics fitting to the first order model. This work demonstrates conclusively the benefits of sonochemistry in the design of metal nanoparticle-decorated inorganic/polymer hybrid system with outstanding performances.
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Affiliation(s)
- Youssef Snoussi
- Laboratory of Materials, Molecules and Applications, IPEST, University of Carthage, Sidi Bou Said Road, B.P. 51 2070, La Marsa, Tunisia; Faculté des Sciences de Bizerte, Université de Carthage, Bizerte, Tunisia.
| | - Stéphane Bastide
- Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 2-8 rue Henri Dunant, 94320 Thiais, France
| | - Manef Abderrabba
- Laboratory of Materials, Molecules and Applications, IPEST, University of Carthage, Sidi Bou Said Road, B.P. 51 2070, La Marsa, Tunisia
| | - Mohamed M Chehimi
- Université Paris Est, ICMPE (UMR 7182), CNRS, UPEC, 2-8 rue Henri Dunant, 94320 Thiais, France.
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Hemmati M, Rajabi M, Asghari A. Ultrasound-promoted dispersive micro solid-phase extraction of trace anti-hypertensive drugs from biological matrices using a sonochemically synthesized conductive polymer nanocomposite. ULTRASONICS SONOCHEMISTRY 2017; 39:12-24. [PMID: 28732927 DOI: 10.1016/j.ultsonch.2017.03.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 03/11/2017] [Accepted: 03/11/2017] [Indexed: 06/07/2023]
Abstract
In this work, a rapid and efficient procedure named ultrasound meliorated dispersive micro solid-phase extraction followed by high performance liquid chromatography-ultra violet detection (US-D-μSPE-HPLC-UV) was developed for the pre-concentration of the main trace anti-hypertensive drugs in complex matrices. The basis of this procedure was a polypyrrole-sodium dodecylbenzenesulfonate/zinc oxide (PPy-DBSNa/ZnO) nanocomposite. It was readily synthesized by the impressive way of in situ sonochemical oxidative polymerization in the presence of some additives such as FeCl3 and DBSNa, ultimately leading to the effective coating of PPy on the ZnO nanoparticle cores. Characterization of the proposed nanosorbent was performed by different techniques such as FESEM, XRD,EDX, and TGA, confirming the high quality and proper physico-chemical properties of the proposed sorbent. In order to better investigate the input variables, the central composite design (CCD) combined with the desirability function (DF) was utilized. The enriched optimum conditions consisted of the initial pH value of 11.8, 15mg of the PPy-DBSNa/ZnO nanocomposite, a sonication time of 4.6min, and 100μL of methanol, resulting in maximum responses at a relatively low extraction time with a logical DF. Under the optimum conditions, good linearity (5-5000, 2.5-3500, and 2.5-3000ngmL-1 for metoprolol, propranolol, and carvedilol, respectively, with the correlation of determinations (R2s) higher than 0.99), low limits of detection (LODs) (0.8-1.5ngmL-1), proper repeatabilities (relative standard deviation values (RSDs) below 6.3%, n=3), reasonable enrichment factors (EFs) (60-72), and good extraction recoveries (ERs) (higher than %75) were obtainable. These appropriate validations corroborated a good effectiveness of ultrasonic waves in the achievement of a supreme solid phase as well as a facile and efficient microextraction of the low therapeutic concentrations in human plasma and urine samples.
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Affiliation(s)
- Maryam Hemmati
- Department of Chemistry, Semnan University, Semnan 2333383-193, Iran
| | - Maryam Rajabi
- Department of Chemistry, Semnan University, Semnan 2333383-193, Iran.
| | - Alireza Asghari
- Department of Chemistry, Semnan University, Semnan 2333383-193, Iran
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16
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Wang S, Cui W, Zhang G, Zhang L, Peng J. Ultra fast ultrasound-assisted decopperization from copper anode slime. ULTRASONICS SONOCHEMISTRY 2017; 36:20-26. [PMID: 28069202 DOI: 10.1016/j.ultsonch.2016.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 06/06/2023]
Abstract
An ultra fast decopperization method from the anode slime has been developed based on the ultrasound-assisted leaching. The effects of parameters such as ultrasound power, leaching time, sulfuric acid concentration and liquid/solid ratio were investigated. Under optimum conditions, the concentration of Cu in residue was only 2.64%. The removal efficiency increases considerably and the decopperization time was significantly shortened comparing with conventional method (>10%, 24h). Se and Te have not been detected in lixivium, indicating the selective leaching of Cu. In addition, the mineralogical characteristics of the untreated anode slime and the residues after ultrasound-assisted decopperization are investigated. The results revealed that the increasing of decopperization efficiency was attributed to the change of the phase composition and the morphology and size of samples during ultrasound-assisted decopperization.
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Affiliation(s)
- Shixing Wang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Wei Cui
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Gengwei Zhang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Libo Zhang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.
| | - Jinhui Peng
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
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18
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Skebo JE, Grabinski CM, Schrand AM, Schlager JJ, Hussain SM. Assessment of Metal Nanoparticle Agglomeration, Uptake, and Interaction Using High-Illuminating System. Int J Toxicol 2016; 26:135-41. [PMID: 17454253 DOI: 10.1080/10915810701226248] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In the present study, an ultrahigh-resolution system was applied as a simple and convenient technique to characterize the extent of metal nanoparticle agglomeration in solution and to visualize nanoparticle agglomeration, uptake, and surface interaction in three cell phenotypes under normal culture conditions. The experimental results demonstrated that silver (25, 80, 130 nm); aluminum (80 nm); and manganese (40 nm) particles and agglomerates were effectively internalized by rat liver cells (BRL 3A), rat alveolar macrophages (MACs), and rat neuroendocrine cells (PC-12). Individual and agglomerated nanoparticles were observed within the cells and agglomerates were observed on the cell surface membranes. The particles were initially dispersed in aqueous or physiological balanced salt solutions and agglomeration was observed using the Ultra Resolution Imaging (URI) system. Different methods, such as sonication and addition of surfactant (0.1% sodium dodecyl sulfate [SDS]) reduced agglomeration. Due to effects of SDS itself on cell viability, the surfactant could not be directly applied during cell exposure. Therefore, following addition of 0.1% SDS, the particles were washed twice with ultrapure water, which reduced agglomeration even further. Reducing the agglomeration of the nanoparticles is important for studying their uptake and in applications that benefit from individual nanoparticles such as diagnostics. In summary, this study demonstrates a simple technique to characterize the extent of nanoparticle agglomeration in solution and visualize nanoparticle (40 nm and larger) uptake and interaction with cells. Additionally, an example application of nanoparticle labeling onto the surface and neurite extensions of murine neuroblastoma cells (N2A) is presented as a potential imaging tool.
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Affiliation(s)
- Jeanne E Skebo
- Applied Biotechnology Branch, Human Effectiveness Directorate, Air Force Research Laboratory/HEPB, Wright-Patterson Air Force Base, Ohio 45433-5707, USA
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Fageria P, Uppala S, Nazir R, Gangopadhyay S, Chang CH, Basu M, Pande S. Synthesis of Monometallic (Au and Pd) and Bimetallic (AuPd) Nanoparticles Using Carbon Nitride (C 3N 4) Quantum Dots via the Photochemical Route for Nitrophenol Reduction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10054-10064. [PMID: 27610832 DOI: 10.1021/acs.langmuir.6b02375] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, we report the synthesis of monometallic (Au and Pd) and bimetallic (AuPd) nanoparticles (NPs) using graphitic carbon nitride (g-C3N4) quantum dots (QDs) and photochemical routes. Eliminating the necessity of any extra stabilizer or reducing agent, the photochemical reactions have been carried out using a UV light source of 365 nm where C3N4 QD itself functions as a suitable stabilizer as well as a reducing agent. The g-C3N4 QDs are excited upon irradiation with UV light and produce photogenerated electrons, which further facilitate the reduction of metal ions. The successful formation of Au, Pd, and AuPd alloy nanoparticles is evidenced by UV-vis, powder X-ray diffraction, X-ray photon spectroscopy, and energy-dispersive spectroscopy techniques. The morphology and distribution of metal nanoparticles over the C3N4 QD surface has been systematically investigated by high-resolution transmission electron microscopy (HRTEM) and SAED analysis. To explore the catalytic activity of the as-prepared samples, the reduction reaction of 4-nitrophenol with excellent performance is also investigated. It is noteworthy that the synthesis of both monometallic and bimetallic NPs can be accomplished by using a very small amount of g-C3N4, which can be used as a promising photoreducing material as well as a stabilizer for the synthesis of various metal nanoparticles.
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Affiliation(s)
| | | | | | | | - Chien-Hsiang Chang
- Department of Chemical Engineering, National Cheng Kung University , 701, Tainan City, Taiwan
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20
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Hostert L, de Alvarenga G, Vidotti M, Marchesi LF. Sonoelectrodeposition of poly(pyrrole) films: Electrochemical and morphological effects caused by the ultrasonic amplitude. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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21
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Lv X, Zhang P, Li M, Guo Z, Zheng X. Synthesis of Polymethylene Blue Nanoparticles and their Application to Label-Free DNA Detection. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1158832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Sultan A, Anwer T, Ahmad S, Mohammad F. Preparation, characterization, and dynamic adsorption-desorption studies on polypyrrole encapsulated TiO2nanoparticles. J Appl Polym Sci 2016. [DOI: 10.1002/app.43411] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Adil Sultan
- Department of Applied Chemistry; Faculty of Engineering and Technology, Aligarh Muslim University; Aligarh 202002 India
| | - Tarique Anwer
- Department of Applied Chemistry; Faculty of Engineering and Technology, Aligarh Muslim University; Aligarh 202002 India
| | - Sharique Ahmad
- Department of Applied Chemistry; Faculty of Engineering and Technology, Aligarh Muslim University; Aligarh 202002 India
| | - Faiz Mohammad
- Department of Applied Chemistry; Faculty of Engineering and Technology, Aligarh Muslim University; Aligarh 202002 India
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Elsupikhe RF, Shameli K, Ahmad MB. Sonochemical method for the synthesis of silver nanoparticles in κ-carrageenan from silver salt at different concentrations. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-014-1907-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Tzirakis MD, Zambail R, Tan YZ, Chew JW, Adlhart C, Honciuc A. Surfactant-free synthesis of sub-100 nm poly(styrene-co-divinylbenzene) nanoparticles by one-step ultrasonic assisted emulsification/polymerization. RSC Adv 2015. [DOI: 10.1039/c5ra23840d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The preparation of sub-100 nm surfactant-free polymeric nanoparticles was achieved via a new protocol that involves acoustic oil-in-water emulsification and concomitant free-radical polymerization of apolar monomers such as St and DVB.
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Affiliation(s)
- Manolis D. Tzirakis
- Institute of Chemistry and Biological Chemistry
- Zurich University of Applied Sciences
- 8820 Waedenswil
- Switzerland
| | - Roman Zambail
- Institute of Chemistry and Biological Chemistry
- Zurich University of Applied Sciences
- 8820 Waedenswil
- Switzerland
| | - Yong Zen Tan
- Institute of Chemistry and Biological Chemistry
- Zurich University of Applied Sciences
- 8820 Waedenswil
- Switzerland
- School of Chemical and Biomedical Engineering
| | - Jia Wei Chew
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637459
- Singapore
- Singapore Membrane Technology Center
| | - Christian Adlhart
- Institute of Chemistry and Biological Chemistry
- Zurich University of Applied Sciences
- 8820 Waedenswil
- Switzerland
| | - Andrei Honciuc
- Institute of Chemistry and Biological Chemistry
- Zurich University of Applied Sciences
- 8820 Waedenswil
- Switzerland
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25
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QCM-D studies of polypyrrole influence on structure stabilization of β phase of Ni(OH)2 nanoparticles during electrochemical cycling. Electrochem commun 2014. [DOI: 10.1016/j.elecom.2014.09.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Ghaderi S, Mehrgardi MA. Prussian blue-modified nanoporous gold film electrode for amperometric determination of hydrogen peroxide. Bioelectrochemistry 2014; 98:64-9. [DOI: 10.1016/j.bioelechem.2014.03.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/08/2014] [Accepted: 03/17/2014] [Indexed: 10/25/2022]
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Ashassi-Sorkhabi H, Bagheri R, Rezaei-Moghadam B. Protective properties of PPy-Au nanocomposite coatings prepared by sonoelectrochemisty and optimized by the Taguchi method. J Appl Polym Sci 2014. [DOI: 10.1002/app.41087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Habib Ashassi-Sorkhabi
- Department of Physical Chemistry, Electrochemistry Research Laboratory, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Robabeh Bagheri
- Department of Physical Chemistry, Electrochemistry Research Laboratory, Faculty of Chemistry; University of Tabriz; Tabriz Iran
| | - Babak Rezaei-Moghadam
- Department of Physical Chemistry, Electrochemistry Research Laboratory, Faculty of Chemistry; University of Tabriz; Tabriz Iran
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28
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Zolotukhina Е, Bezverkhyy I, Vorotyntsev M. One-stage periodical anodic-cathodic double pulse deposition of nanocomposite materials. Application to Prussian Blue/polypyrrole film coated electrodes. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.10.182] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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29
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Domènech B, Muñoz M, Muraviev DN, Macanás J. Uncommon patterns in Nafion films loaded with silver nanoparticles. Chem Commun (Camb) 2014; 50:4693-5. [DOI: 10.1039/c4cc01285b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of Ag-NPs inside Nafion produced unexpected patterns that can reveal the real morphology of the polymer.
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Affiliation(s)
- Berta Domènech
- Chemistry Department
- Universitat Autònoma de Barcelona
- UAB
- 08193 Bellaterra, Spain
| | - Maria Muñoz
- Chemistry Department
- Universitat Autònoma de Barcelona
- UAB
- 08193 Bellaterra, Spain
| | - Dmitri N. Muraviev
- Chemistry Department
- Universitat Autònoma de Barcelona
- UAB
- 08193 Bellaterra, Spain
| | - Jorge Macanás
- Department of Chemical Engineering
- Universitat Politècnica de Catalunya
- UPC
- 08222 Terrassa, Spain
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30
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Shahdost-fard F, Salimi A, Khezrian S. Highly selective and sensitive adenosine aptasensor based on platinum nanoparticles as catalytical label for amplified detection of biorecognition events through H2O2 reduction. Biosens Bioelectron 2013; 53:355-62. [PMID: 24176972 DOI: 10.1016/j.bios.2013.09.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 09/08/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
Abstract
Based on a combination of aptamer and platinum nanoparticles a new sensitive and selective adenosine aptasensor was fabricated. Functionalized thiol-terminated adenosine aptamer (5'-AGAGAACCTGGGGGAGTATTGCGGAGGAAGGT-SH-3') with Pt Nanoparticles (Pt-NPs) was employed as highly catalytic label for electrochemical detection of adenosine based on electrocatalytic activity of Pt-NPs toward H2O2 reduction. Multiwalled carbon nanotubes/ionic liquid/chitosan (MWCNTs/IL/CHIT) nanocomposite was applied as the interface for covalent attachment of 3'-amine-terminated capture probe (3'-NH2-(CH2)6-TCTCTTGGACCC-5'). The presence of Pt nanoparticles improvement the conductivity and performance characteristics of the biosensor as well as incensement in the loading amount of the aptamer DNA sequence. The interaction of adenosine with the aptamer causes the releasing of aptamer with PtNPs into solution which resulted in a decreasing of hydrogen peroxide reduction peak current. Sensitive quantitative detection of adenosine was achieved by monitoring the decrease of voltammetric responses of H2O2 peak current. The peak current of H2O2 decreased with increase in the concentration of adenosine over a range of 1-750 nM with detection limit 1 nM. In addition the proposed aptasensor showed excellent selectivity toward adenosine in compared to some other nucleosides such as guanosine, cytidine and uridine. The proposed aptasensor was successfully used to detect adenosine in human serum samples. The elimination of enzymes or antibodies for the amplified detection of adenosine and the use of platinum nanoparticles as inorganic catalytic label, are the advantage of the proposed aptasensor.
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31
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Barkade SS, Pinjari DV, Singh AK, Gogate PR, Naik JB, Sonawane SH, Ashokkumar M, Pandit AB. Ultrasound Assisted Miniemulsion Polymerization for Preparation of Polypyrrole–Zinc Oxide (PPy/ZnO) Functional Latex for Liquefied Petroleum Gas Sensing. Ind Eng Chem Res 2013. [DOI: 10.1021/ie301698g] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shrikant S. Barkade
- Department of Chemical Engineering, University Institute of Chemical
Technology, North Maharashtra University, Jalgaon 425001, India
| | - Dipak V. Pinjari
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
| | - Ashok K. Singh
- Defence Institute of Advanced Technologies (DIAT), Pune 411025, India
| | - Parag R. Gogate
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
| | - Jitendra B. Naik
- Department of Chemical Engineering, University Institute of Chemical
Technology, North Maharashtra University, Jalgaon 425001, India
| | - Shirish H. Sonawane
- Department of Chemical Engineering, National Institute of Technology, Warangal 506004,
India
| | | | - Aniruddha B. Pandit
- Chemical Engineering Department, Institute of Chemical Technology, Mumbai, Maharashtra 400019, India
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32
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Arvizo RR, Bhattacharyya S, Kudgus R, Giri K, Bhattacharya R, Mukherjee P. Intrinsic therapeutic applications of noble metal nanoparticles: past, present and future. Chem Soc Rev 2012; 41:2943-70. [PMID: 22388295 PMCID: PMC3346960 DOI: 10.1039/c2cs15355f] [Citation(s) in RCA: 487] [Impact Index Per Article: 40.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biomedical nanotechnology is an evolving field having enormous potential to positively impact the health care system. Important biomedical applications of nanotechnology that may have potential clinical applications include targeted drug delivery, detection/diagnosis and imaging. Basic understanding of how nanomaterials, the building blocks of nanotechnology, interact with the cells and their biological consequences are beginning to evolve. Noble metal nanoparticles such as gold, silver and platinum are particularly interesting due to their size and shape dependent unique optoelectronic properties. These noble metal nanoparticles, particularly of gold, have elicited a lot of interest for important biomedical applications because of their ease of synthesis, characterization and surface functionalization. Furthermore, recent investigations are demonstrating another promising application of these nanomaterials as self-therapeutics. To realize the potential promise of these unique inorganic nanomaterials for future clinical translation, it is of utmost importance to understand a few critical parameters; (i) how these nanomaterials interact with the cells at the molecular level; (ii) how their biodistribution and pharmacokinetics influenced by their surface and routes of administration; (iii) mechanism of their detoxification and clearance and (iv) their therapeutic efficacy in appropriate disease model. Thus in this critical review, we will discuss the various clinical applications of gold, silver and platinum nanoparticles with relevance to above parameters. We will also mention various routes of synthesis of these noble metal nanoparticles. However, before we discuss present research, we will also look into the past. We need to understand the discoveries made before us in order to further our knowledge and technological development (318 references).
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Affiliation(s)
- Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | | | | | - Karuna Giri
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Resham Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Priyabrata Mukherjee
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, MN 55905
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Wang C, Chen S, Xiang Y, Li W, Zhong X, Che X, Li J. Glucose biosensor based on the highly efficient immobilization of glucose oxidase on Prussian blue-gold nanocomposite films. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2010.12.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chen A, Holt-Hindle P. Platinum-Based Nanostructured Materials: Synthesis, Properties, and Applications. Chem Rev 2010; 110:3767-804. [DOI: 10.1021/cr9003902] [Citation(s) in RCA: 1154] [Impact Index Per Article: 82.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aicheng Chen
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Peter Holt-Hindle
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
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36
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Atobe M, Okamoto M, Fuchigami T, Park JE. Selective hydrogenation by polymer-encapsulated platinum nanoparticles prepared by an easy single-step sonochemical synthesis. ULTRASONICS SONOCHEMISTRY 2010; 17:26-29. [PMID: 19559639 DOI: 10.1016/j.ultsonch.2009.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 05/29/2009] [Accepted: 06/02/2009] [Indexed: 05/28/2023]
Abstract
Polypyrrole-encapsulated platinum nanoparticles (PPy/Pt-NPs) prepared by an easy single-step sonochemical synthesis were used as catalysts for the liquid phase hydrogenation of substituted alkenes in methanol or methanol/water mixtures. Polypyrrole (PPy) coatings on the nanoparticles were able to act as nanoscopic filters for substrates molecules, and consequently substrate selectivity could be controlled in the catalytic processes.
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Affiliation(s)
- Mahito Atobe
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Technology, Tokyo Institute of Technology, 4259-G1-3 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan.
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Pal A, Shah S, Belochapkine S, Tanner D, Magner E, Devi S. Room temperature synthesis of platinum nanoparticles in water-in-oil microemulsion. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2008.11.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Synthesis of Conducting Polymer Supported Pd Nanoparticles in Aqueous Medium and Catalytic Activity Towards 4-Nitrophenol Reduction. Catal Letters 2008. [DOI: 10.1007/s10562-008-9732-x] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Pisarevskaya EY, Ovsyannikova EV, Kazanskiy LP, Lypenko DA, Alpatova NM. Physicochemical features of poly-o-phenylenediamine modification with palladium microparticles. RUSS J ELECTROCHEM+ 2008. [DOI: 10.1134/s1023193508100030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Pisarevskaya EY, Alpatova NM. Palladium deposition features on poly-o-phenylenediamine film. RUSS J ELECTROCHEM+ 2008. [DOI: 10.1134/s1023193508080132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Abstract
The paper gives a review of publications on polymers with conjugated matrices (PPy, PTh, PAni, hydrocarbon or mixed chains...) which incorporate metallocene complexes (Fe, Ru, Co; Ni, Ti, Zr, Ta) with two cyclopentadienyl ligands (Cp) and their derivatives, in particular with methylated cyclopentadienyl rings (Cp*), as well as hemi-metallocene complexes (Fe, Ru, Co, Mn), as pendant groups or inside the principal chain (part B). The information on related short-chain systems, monomers and oligomers, is also included. In part A, a brief overview of various conjugated polymer materials is presented, with their classification in accordance with the conductivity mechanism (ionic, electronic or mixed conductors) or with the structural type (linear-chain organic or mixed polymers, derivatization, metallopolymers, multi-dimensional structures, alternating and block copolymers with organic or mixed units, hybrid materials with a mixture of conjugated and inert polymers, polymers inside a solid matrix, conjugated polymers with incorporated nanoelements of transition metals, carbon, semiconductors etc.
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Goubard F, Aubert PH, Boukerma K, Pauthe E, Chevrot C. Elaboration of nanohybrid materials by photopolymerisation of 3,4-ethylenedioxythiophene on TiO2. Chem Commun (Camb) 2008:3139-41. [DOI: 10.1039/b800754c] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Krishnan CV, Chen J, Burger C, Chu B. Polymer-assisted growth of molybdenum oxide whiskers via a sonochemical process. J Phys Chem B 2007; 110:20182-8. [PMID: 17034194 DOI: 10.1021/jp063156f] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Whiskers of molybdenum oxides with high aspect ratios were synthesized from peroxomolybdate precursor solutions in the presence of small amounts of poly(ethylene glycol) (PEG) via a sonochemical process at temperatures of 25-70 degrees C. Irradiation with ultrasound reduces the time needed for the growth of micrometer-sized whiskers from weeks to a few hours. The simplicity of the sonochemical approach also compares favorably to a hydrothermal/solvothermal process. The morphology, crystal structure, and other characteristics of the whiskers were characterized by scanning electron microscopy, transmission electron microscopy, selective area electron diffraction, energy-dispersive X-ray spectroscopy, wide-angle X-ray diffraction, Raman spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and the Brunauer-Emmett-Teller method. The surface area of the calcified molybdenum oxide whiskers (55.4 m2/g) was found to be much higher than those of molybdenum oxide nanofibers (35 m2/g) or nanorods (13.4 m2/g) The growth rate of various crystal faces could be postulated to be controlled by the binding of peroxomolybdate ions to pseudo-crown ether cavities formed by PEG. The reduction of molybdenum oxide to produce mixed-valent oxides and their growth could also be controlled by the reducing ability of PEG. The aspect ratio of the molybdenum oxide whiskers increased with decreasing concentration in the initial peroxomolybdate precursor solution. Whether the precursor solution species was H2Mo2O3(O2)4(H2O)2, H2MoO2(O2)2, or MoO2(OH)(OOH), the peroxide group in all the species disproportionates to give the final product MoO3 by a catalytic process. On the basis of experimental evidence of the dual role of glycols, a mechanism for the growth of the molybdenum oxide whiskers is proposed.
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Affiliation(s)
- Chirakkal V Krishnan
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, USA
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Tang L, Zhu Y, Xu L, Yang X, Li C. Properties of Dendrimer-Encapsulated Pt Nanoparticles Doped Polypyrrole Composite Films and Their Electrocatalytic Activity for Glucose Oxidation. ELECTROANAL 2007. [DOI: 10.1002/elan.200703904] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Miao Y, Chen J, Wu X, Miao J. Preparation and characterization of hybrid platinum/Prussian blue nanoparticles. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2006.08.042] [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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Richardson MJ, Johnston JH, Borrmann T. Monomeric and Polymeric Amines as Dual Reductants/Stabilisers for the Synthesis of Gold Nanocrystals: A Mechanistic Study. Eur J Inorg Chem 2006. [DOI: 10.1002/ejic.200600154] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cen L, Neoh KG, Cai Q, Kang ET. Au-Pt bimetallic nanoparticles formation via viologen-mediated reduction on polymeric nanospheres. J Colloid Interface Sci 2006; 300:190-9. [PMID: 16631776 DOI: 10.1016/j.jcis.2006.03.055] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Revised: 03/14/2006] [Accepted: 03/19/2006] [Indexed: 11/26/2022]
Abstract
Poly(vinylbenzyl chloride) nanospheres prepared via emulsion polymerization were surface functionalized with viologen moieties. Several methods were investigated to achieve the desired high surface concentration of viologen moieties with minimal aggregation of the nanospheres. The viologen-functionalized nanospheres were used for photoinduced reduction of gold ions and platinum ions, either individually, simultaneously or sequentially, to result in the formation of well-distributed Au-Pt nanoparticles of a few nanometers on the surface of the nanospheres. UV-visible absorption spectroscopy and XPS analyses of these bimetallic nanoparticles were carried out. The reaction time and the sequence of the reduction process play an important role in determining the composition of the bimetallic nanoparticles. High-resolution transmission electron microscopy analysis reveals the highly crystalline nature of the bimetallic nanoparticles.
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Affiliation(s)
- Lian Cen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Kent Ridge, 119260 Singapore
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Ramanaviciene A, Schuhmann W, Ramanavicius A. AFM study of conducting polymer polypyrrole nanoparticles formed by redox enzyme - glucose oxidase - initiated polymerisation. Colloids Surf B Biointerfaces 2006; 48:159-66. [PMID: 16551500 DOI: 10.1016/j.colsurfb.2006.02.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Revised: 01/31/2006] [Accepted: 02/07/2006] [Indexed: 10/25/2022]
Abstract
Redox enzyme - glucose oxidase E.C. 1.1.3.4 from Penecillum vitale (GOx) - initiated polypyrrole (Ppy) synthesis was applied for the formation of polypyrrole based nanoparticles. The increase in optical absorbance at lambda=460 nm was exploited for the monitoring of polypyrrole polymerisation process. The shape and size of the formed Ppy nanoparticles was also monitored by means of contact mode AFM. The highest increase in the diameter of the formed Ppy nanoparticles was detected during 15-day period. AFM imaging was performed in contact mode to investigate the shape and flexibility of particles deposited on the SiO2 and Pt surfaces. Contact mode AFM investigations allowed us to conclude that after drying at 50 degrees C the formed Ppy particles are more flexibly deposited on the Pt electrode if compared to those deposited on the SiO2 substrate. The application of well-shaped Ppy nanoparticles in biomedicine, chromatography and bioanalysis may be predicted.
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Affiliation(s)
- Almira Ramanaviciene
- Laboratory of Immunoanalysis and Nanotechnology, Institute of Immunology of Vilnius University, Moletu pl. 29, 08409 Vilnius, Lithuania
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50
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Park JE, Saikawa M, Atobe M, Fuchigami T. Highly-regulated nanocoatings of polymer films on carbon nanofibers using ultrasonic irradiation. Chem Commun (Camb) 2006:2708-10. [PMID: 16786095 DOI: 10.1039/b603472a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It was demonstrated that nanoprecise coatings of uniform and densely packed polymer layers on nanomaterials and uniform polymer coatings on individual nano-objects are formed using ultrasonic effects.
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Affiliation(s)
- Jong-Eun Park
- Graduate School of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
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