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Gomez C, Hallot G, Pastor A, Laurent S, Brun E, Sicard-Roselli C, Port M. Metallic bismuth nanoparticles: Towards a robust, productive and ultrasound assisted synthesis from batch to flow-continuous chemistry. ULTRASONICS SONOCHEMISTRY 2019; 56:167-173. [PMID: 31101252 DOI: 10.1016/j.ultsonch.2019.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 03/19/2019] [Accepted: 04/02/2019] [Indexed: 05/28/2023]
Abstract
Bismuth is a highly biocompatible and inexpensive metal with a high atomic number, which confers an important X-rays opacity. While bismuth oxide or bismuth sulphide have been extensively studied in imaging, little is known about metallic bismuth nanoparticles. The latter are more attractive for X-rays imaging because they contain neither oxygen nor sulfur, so that a high amount of metal atoms is contained within the nanoparticles. We report here a robust, efficient and green ultrasound assisted synthesis to obtain metallic bismuth NPs. The procedure, which has been optimized to get a reproducible synthesis, will also tend to minimize chemical hazards to health and environment. By applying the green chemistry principles, several experimental parameters have been studied such as reaction time, reactants stoichiometry, temperature, starting material quantities and purification steps number. Two energy delivery system (classical heating and sonication) were compared. The production of small metallic bismuth NPs on a large scale by flow chemistry coupled to sonication was showed for the first time. These optimizations of the process were completed by a comparison of two purification methods (centrifugation and ultrafiltration) to isolate purified thin black powders of d-glucose-coated bismuth NPs. Several analytical techniques were used to characterize products (structures, sizes and morphology) such as Fourier Transform InfraRed (FT-IR) spectroscopy, Dynamic Light Scattering (DLS), Transmission Electron Microscopy (TEM), Energy-dispersive X-ray spectrometry (EDX) and X-Ray Diffraction (XRD). All these analyses corroborated well with the structure of metallic bismuth NPs coated with a d-glucose shell.
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Affiliation(s)
- Catherine Gomez
- Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire (EA 7528), Equipe Chimie Moléculaire, Conservatoire National des Arts et Métiers (Cnam), HESAM Université, 2 rue Conté, 75003 Paris, France.
| | - Gauthier Hallot
- Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire (EA 7528), Equipe Chimie Moléculaire, Conservatoire National des Arts et Métiers (Cnam), HESAM Université, 2 rue Conté, 75003 Paris, France
| | - Alexandra Pastor
- Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire (EA 7528), Equipe Chimie Moléculaire, Conservatoire National des Arts et Métiers (Cnam), HESAM Université, 2 rue Conté, 75003 Paris, France
| | - Sophie Laurent
- Laboratoire de RMN et d'Imagerie Moléculaire, Université de Mons, 19 avenue Maistriau, B-7000 Mons, Belgium
| | - Emilie Brun
- Laboratoire de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Cécile Sicard-Roselli
- Laboratoire de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, 91405 Orsay Cedex, France
| | - Marc Port
- Laboratoire de Génomique, Bioinformatique et Chimie Moléculaire (EA 7528), Equipe Chimie Moléculaire, Conservatoire National des Arts et Métiers (Cnam), HESAM Université, 2 rue Conté, 75003 Paris, France
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Yusof NSM, Ashokkumar M. Sonochemical synthesis of gold nanoparticles by using high intensity focused ultrasound. Chemphyschem 2015; 16:775-81. [PMID: 25598360 DOI: 10.1002/cphc.201402697] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Indexed: 11/09/2022]
Abstract
The sonochemical synthesis of gold nanoparticles (GNPs) with different shapes and size distributions by using high-intensity focused ultrasound (HIFU) operating at 463 kHz is reported. GNP formation proceeds through the reduction of Au(3+) to Au(0) by radicals generated by acoustic cavitation. TEM images reveal that GNPs show irregular shapes at 30 W, are primarily icosahedral at 50 W and form a significant amount of nanorods at 70 W. The size of GNPs decreases with increasing acoustic power with a narrower size distribution. Sonochemiluminescence images help in the understanding of the effect of HIFU in controlling the size and shapes of GNPs. The number of radicals that form and the mechanical forces that are generated control the shape and size of the GNPs. UV/Vis spectra and TEM images are used to propose a possible mechanism for the observed effects. The results presented demonstrate, for the first time, that the HIFU system can be used to synthesise size- and shape-controlled metal nanoparticles.
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Affiliation(s)
- Nor Saadah Mohd Yusof
- School of Chemistry, University of Melbourne, Parkville, VIC 3010 (Australia); Department of Chemistry, University of Malaya, Kuala Lumpur (Malaysia)
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Bonggotgetsakul YYN, Ashokkumar M, Cattrall RW, Kolev SD. The use of sonication to increase extraction rate in polymer inclusion membranes. An application to the extraction of gold(III). J Memb Sci 2010. [DOI: 10.1016/j.memsci.2010.09.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Schaming D, Allain C, Farha R, Goldmann M, Lobstein S, Giraudeau A, Hasenknopf B, Ruhlmann L. Synthesis and photocatalytic properties of mixed polyoxometalate-porphyrin copolymers obtained from Anderson-type polyoxomolybdates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:5101-5109. [PMID: 20030354 DOI: 10.1021/la903564d] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Hybrid polyoxometalate-porphyrin copolymeric films are obtained by the electro-oxidation of zinc octaethylporphyrin (ZnOEP) and zinc 5,15-dipyridinium octaethylporphyrin (5,15-ZnOEP(py)(2)(2+)) in the presence of the polyoxometalate [MnMo(6)O(18){(OCH(2))(3)CNHCO(4-C(5)H(4)N)}(2)](3-) (Py-POM-Py). These films allow the photocatalytic reduction of Ag(I)(2)SO(4) under visible irradiation in air in the presence of propan-2-ol at the 2D interface between water and the copolymeric films. The formation of metallic Ag(0) nanowires and triangular nanosheets is observed.
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Affiliation(s)
- Delphine Schaming
- Laboratoire de Chimie Physique, Groupe TEMiC, UMR 8000 au CNRS, Université Paris-Sud (XI), F-91405 Orsay Cedex, France
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Sathish Kumar PS, Sivakumar R, Anandan S, Madhavan J, Maruthamuthu P, Ashokkumar M. Photocatalytic degradation of Acid Red 88 using Au-TiO(2) nanoparticles in aqueous solutions. WATER RESEARCH 2008; 42:4878-4884. [PMID: 18945469 DOI: 10.1016/j.watres.2008.09.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Revised: 09/03/2008] [Accepted: 09/06/2008] [Indexed: 05/27/2023]
Abstract
Metal loaded semiconductors in general possess greater photocatalytic activity than pure semiconductors. Hence, with an attempt to achieve higher photocatalytic activity, Au-TiO(2) photocatalysts were prepared by deposition-precipitation method and used for the photocatalytic degradation of an azo dye (Acid Red 88; AR88). The materials were characterized by different analytical techniques. A possible mechanism for the photocatalytic degradation of AR88 by Au-TiO(2) in the absence and presence of other oxidizing agents (peroxomonosulfate (PMS), peroxodisulfate (PDS) & hydrogen peroxide (H(2)O(2))) has been proposed. The extent of mineralization of the target pollutant was also evaluated using Total Organic Carbon (TOC) analysis.
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Affiliation(s)
- Panneer Selvam Sathish Kumar
- Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Trichy 620 015, India
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He W, Kivork C, Machinani S, Morphew MK, Gail AM, Tesar DB, Tiangco NE, McIntosh JR, Bjorkman PJ. A freeze substitution fixation-based gold enlarging technique for EM studies of endocytosed Nanogold-labeled molecules. J Struct Biol 2007; 160:103-13. [PMID: 17723309 PMCID: PMC2076746 DOI: 10.1016/j.jsb.2007.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2007] [Revised: 07/05/2007] [Accepted: 07/17/2007] [Indexed: 11/28/2022]
Abstract
We have developed methods to locate individual ligands that can be used for electron microscopy studies of dynamic events during endocytosis and subsequent intracellular trafficking. The methods are based on enlargement of 1.4 nm Nanogold attached to an endocytosed ligand. Nanogold, a small label that does not induce misdirection of ligand-receptor complexes, is ideal for labeling ligands endocytosed by live cells, but is too small to be routinely located in cells by electron microscopy. Traditional pre-embedding enhancement protocols to enlarge Nanogold are not compatible with high pressure freezing/freeze substitution fixation (HPF/FSF), the most accurate method to preserve ultrastructure and dynamic events during trafficking. We have developed an improved enhancement procedure for chemically fixed samples that reduced auto-nucleation, and a new pre-embedding gold enlarging technique for HPF/FSF samples that preserved contrast and ultrastructure and can be used for high-resolution tomography. We evaluated our methods using labeled Fc as a ligand for the neonatal Fc receptor. Attachment of Nanogold to Fc did not interfere with receptor binding or uptake, and gold-labeled Fc could be specifically enlarged to allow identification in 2D projections and in tomograms. These methods should be broadly applicable to many endocytosis and transcytosis studies.
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Affiliation(s)
- Wanzhong He
- Division of Biology 114-96, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA
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Shchukin DG, Gorin DA, Möhwald H. Ultrasonically induced opening of polyelectrolyte microcontainers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7400-4. [PMID: 16893244 DOI: 10.1021/la061047m] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The effect of ultrasonic treatments of different intensity and duration on the integrity and permeability of polyelectrolyte capsules was investigated both in poly(allylamine)/poly(styrene sulfonate) and Fe(3)O(4)/poly(allylamine)/poly(styrene sulfonate) polyelectrolyte capsules. Ultrasonic treatment of polyelectrolyte capsules induces the destruction of the polyelectrolyte shell and the release of the encapsulated material even at short (5 s) sonification times. The presence of magnetite nanoparticles significantly improves the efficiency of the ultrasonically stimulated release of the encapsulated compounds and enables magnetically controlled delivery to the desired site before ultrasonic treatment. Release of the encapsulated compound induced at ultrasonic power comparable to those of ultrasonic generators applied in medicine, demonstrating practical application of the ultrasonically triggered capsule opening in medicine.
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Affiliation(s)
- Dmitry G Shchukin
- Max-Planck Institute of Colloids and Interfaces, D14424 Potsdam, Germany.
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Hartley PG, Warr GG. Australian Colloid and Interface Symposium 2005 Special Issue. Aust J Chem 2005. [DOI: 10.1071/ch05248] [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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