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Nanometer-thick defective graphene films decorated with oriented ruthenium nanoparticles. Higher activity of 101 vs 002 plane for silane-alcohol coupling and hydrogen transfer reduction. J Catal 2022. [DOI: 10.1016/j.jcat.2022.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Yang Y, Serrano LA, Guldin S. A Versatile AuNP Synthetic Platform for Decoupled Control of Size and Surface Composition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6820-6826. [PMID: 29768005 DOI: 10.1021/acs.langmuir.8b00353] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
While a plethora of protocols exist for the synthesis of sub-10-nm gold nanoparticles (AuNPs), independent control over the size and surface composition remains restricted. This poses a particular challenge for systematic studies of AuNP structure-function relationships and the optimization of crucial design parameters. To this end, we report on a modular two-step approach based on the synthesis of AuNPs in oleylamine (OAm) followed by subsequent functionalization with thiol ligands and mixtures thereof. The synthesis of OAm-capped AuNPs enables fine-tuning of the core size in the range of 2-7 nm by varying the reaction temperature. The subsequent thiol-for-OAm ligand exchange allows a reliable generation of thiol-capped AuNPs with target surface functionality. The compatibility of this approach with a vast library of thiol ligands provides detailed control of the mixed ligand composition and solubility in a wide range of solvents ranging from water to hexane. This decoupled control over the AuNP core and ligand shell provides a powerful toolbox for the methodical screening of optimal design parameters and facile preparation of AuNPs with target properties.
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Affiliation(s)
- Ye Yang
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
| | - Luis A Serrano
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
| | - Stefan Guldin
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
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Kalska-Szostko B, Rogowska M, Satuła D. Organophosphorous functionalization of magnetite nanoparticles. Colloids Surf B Biointerfaces 2013; 111:656-62. [DOI: 10.1016/j.colsurfb.2013.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 11/26/2022]
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5
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Jadhav SA. Functional self-assembled monolayers (SAMs) of organic compounds on gold nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14239b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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6
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Llevot A, Astruc D. Applications of vectorized gold nanoparticles to the diagnosis and therapy of cancer. Chem Soc Rev 2011; 41:242-57. [PMID: 21785769 DOI: 10.1039/c1cs15080d] [Citation(s) in RCA: 232] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This critical review focuses on the anti-cancer fight using gold nanoparticles (AuNPs) functionalized with chemotherapeutic drugs in so-called "complexes" (supramolecular assemblies) and "conjugates" (covalent assemblies) as vectors. There is a considerable body of recent literature on various tumor-imaging techniques using the surface plasmon band (SPB) and the "passive" and "active" vectorization of anti-cancer drugs. This article reviews the main concepts and the most recent literature data with emphasis on AuNP preparation, cytotoxicities and use in selective targeting of cancer cells with over-expressed receptors for diagnosis and therapy (108 references).
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Mari A, Imperatori P, Marchegiani G, Pilloni L, Mezzi A, Kaciulis S, Cannas C, Meneghini C, Mobilio S, Suber L. High yield synthesis of pure alkanethiolate-capped silver nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:15561-15566. [PMID: 20822171 DOI: 10.1021/la102062p] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
One-phase, one-pot synthesis of Ag(0) nanoparticles capped with alkanethiolate molecules has been optimized to easily achieve a pure product in quantitative yield. We report the synthesis of dodecanethiolate-capped silver particles and the chemophysical, structural, and morphologic characterization performed by way of UV-vis, (1)H NMR, and X-ray photoelectron (XPS) spectroscopies, X-ray powder diffraction (XRD) and X-ray absorption fine structure analysis (XFAS), electron diffraction and high-resolution transmission electron microscopy (HR-TEM), and scanning and transmission electron microscopy (SEM and TEM). Depending on the molar ratio of the reagents (dodecylthiosulphate/Ag(+)), the mean Ag(0) particle size D(XRD) is tuned from 4 to 3 nm with a narrow size distribution. The particles are highly soluble, very stable in organic solvents (hexane, toluene, dichloromethane, etc.), and resistant to oxidation; the hexane solution after one year at room temperature does not show any precipitation or formation of oxidation byproducts.
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Affiliation(s)
- Alessandra Mari
- CNR-Istituto di Struttura della Materia, P.O. Box 10, I-00015 Monterotondo Stazione, Roma, Italy
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8
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Rutledge RD, Warner CL, Pittman JW, Addleman RS, Engelhard M, Chouyyok W, Warner MG. Thiol-ene induced diphosphonic acid functionalization of superparamagnetic iron oxide nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:12285-12292. [PMID: 20550201 DOI: 10.1021/la101362y] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Multifunctional organic molecules represent an interesting challenge for nanoparticle functionalization due to the potential for undesirable interactions between the substrate material and the variable functionalities, making it difficult to control the final orientation of the ligand. In the present study, UV-induced thiol-ene click chemistry has been utilized as a means of directed functionalization of bifunctional ligands on an iron oxide nanoparticle surface. Allyl diphosphonic acid ligand was covalently deposited on the surface of thiol-presenting iron oxide nanoparticles via the formation of a UV-induced thioether. This method of thiol-ene click chemistry offers a set of reaction conditions capable of controlling the ligand deposition and circumventing the natural affinity exhibited by the phosphonic acid moiety for the iron oxide surface. These claims are supported via a multimodal characterization platform which includes thermogravimetric analysis, X-ray photoelectron spectroscopy, and metal contact analysis and are consistent with a properly oriented, highly active ligand on the nanoparticle surface. These experiments suggest thiol-ene click chemistry as both a practical and generally applicable strategy for the directed deposition of multifunctional ligands on metal oxide nanoparticle surfaces.
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Affiliation(s)
- Ryan D Rutledge
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
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Nickel Nanoparticles Catalyzed Knoevenagel Condensation of Aromatic Aldehydes with Barbituric Acids and 2-Thiobarbituric Acids. Catal Letters 2010. [DOI: 10.1007/s10562-010-0376-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Schmidt E, Kleist W, Krumeich F, Mallat T, Baiker A. Platinum Nanoparticles: The Crucial Role of Crystal Face and Colloid Stabilizer in the Diastereoselective Hydrogenation of Cinchonidine. Chemistry 2010; 16:2181-92. [DOI: 10.1002/chem.200902517] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Bédard MF, Braun D, Sukhorukov GB, Skirtach AG. Toward self-assembly of nanoparticles on polymeric microshells: near-IR release and permeability. ACS NANO 2008; 2:1807-16. [PMID: 19206419 DOI: 10.1021/nn8002168] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We present a novel approach to construct hollow polymeric microcontainers that can be remotely addressed using a low-power near-infrared laser to release encapsulated materials. Microshells possessing walls with aggregates of gold nanoparticles are found to release encapsulated materials upon near-IR irradiation, while shells containing the same amount of nonaggregated gold nanoparticles did not release their contents. The permeability of thermally shrunk microcapsules to dextran molecules is the lowest for shells containing nonaggregated nanoparticles and the highest for microcapsules with no nanoparticles. The wall thickness, roughness, influence of concentration of encapsulated materials, and general shrinking behavior of the microcapsules are studied. Aggregation of nanoparticles increases the absorption coefficient in the near-infrared part of electromagnetic spectrum. The temperature increase upon near-infrared laser illumination for different gold nanoparticle distributions is simulated. Important implications of this approach are expected in development of drug delivery systems as well as in temperature- and light-sensitive materials and membranes.
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Affiliation(s)
- Matthieu F Bédard
- Max-Planck Institute of Colloids and Interfaces, Research Park Golm, Golm/Potsdam, D-14424 Germany
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12
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Gehl B, Aleksandrovic V, Erbacher M, Jürgens B, Schürenberg M, Kornowski A, Weller H, Bäumer M. Ligand Exchange with Thiols: Effects on Composition and Morphology of Colloidal CoPt Nanoparticles. Chemphyschem 2008; 9:821-5. [DOI: 10.1002/cphc.200700816] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Wang S, Sim WS. Au nanoparticles encapsulated in Ru carbonyl carboxylate shells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7861-6. [PMID: 16922575 DOI: 10.1021/la060784f] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A two-step surface functionalization approach has been used to encase Au nanoparticles in monolayer organometallic Ru-complex shells by the reaction of an intermediate surface-bound mercaptopropanoic acid capping species with Ru dodecacarbonyl (Ru3(CO)12) clusters. Vibrational (infrared and Raman) spectroscopy shows that insertion of carboxylate groups into the Ru clusters results in their fragmentation and the formation of a shell of Ru dicarbonyl carboxylate oligomers that remain attached to the Au nanoparticles through the original Au-alkanethiolate bonds. The structural integrity of the metallic nanoparticulate Au cores has been verified by X-ray photoelectron spectroscopy, X-ray diffraction, and transmission electron microscopy. The organometallic Ru-complex shell may be decomposed thermally to eliminate the mercaptopropanoate and carbonyl groups and leave a mixed phase of Au and RuO2.
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Affiliation(s)
- Suhua Wang
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260, Singapore
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Cavaliere-Jaricot S, Etcheberry A, Noël V, Herlem M, Perez H. Electronic transfer through Langmuir–Blodgett layers of capped platinum nanoparticles: An electrochemical approach. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2006.01.068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Eustis S, el-Sayed MA. Why gold nanoparticles are more precious than pretty gold: noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes. Chem Soc Rev 2005; 35:209-17. [PMID: 16505915 DOI: 10.1039/b514191e] [Citation(s) in RCA: 1587] [Impact Index Per Article: 83.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This tutorial review presents an introduction to the field of noble metal nanoparticles and their current applications. The origin of the surface plasmon resonance and synthesis procedures are described. A number of applications are presented that take advantage of the electromagnetic field enhancement of the radiative properties of noble metal nanoparticles resulting from the surface plasmon oscillations.
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Affiliation(s)
- Susie Eustis
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Tech, Atlanta, GA 30332, USA
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Oliveira MM, Ugarte D, Zanchet D, Zarbin AJG. Influence of synthetic parameters on the size, structure, and stability of dodecanethiol-stabilized silver nanoparticles. J Colloid Interface Sci 2005; 292:429-35. [PMID: 16055140 DOI: 10.1016/j.jcis.2005.05.068] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2005] [Revised: 05/19/2005] [Accepted: 05/23/2005] [Indexed: 10/25/2022]
Abstract
Metal nanoparticles (NP) are very attractive because of their size- and shape-dependent properties. A widely used preparation of ligand-stabilized metal NP is the two-phase liquid-liquid method using dodecanethiol (DT) as ligand. This work presents various procedures to synthesize dodecanethiol-capped silver NPs, all of them based on a two-phase liquid-liquid method. Small alterations in the synthetic parameters lead to dramatic modifications in the nanoparticles' average size, size distribution width, stability, and structure, as well as in their ability to self-assemble.
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Affiliation(s)
- Marcela M Oliveira
- Departamento de Química, Universidade Federal do Paraná, CEP 81531-990, Curitiba, PR, Brazil
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Tognarelli DJ, Miller RB, Pompano RR, Loftus AF, Sheibley DJ, Leopold MC. Covalently networked monolayer-protected nanoparticle films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:11119-27. [PMID: 16285780 DOI: 10.1021/la051780y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Covalently networked films of nanoparticles can be assembled on various substrates from functionalized monolayer-protected clusters (MPCs) via ester coupling reactions. Exposure of a specifically modified substrate to alternating solutions of 11-mercaptoundecanoic acid exchanged and 11-mercaptoundecanol exchanged MPCs, in the presence of ester coupling reagents, 1,3-dicyclohexylcarbodiimide and 4-(dimethylamino)pyridine, results in the formation of a multilayer film with ester bridges between individual nanoparticles. These films can be grown in a controlled manner to various thicknesses and exhibit certain properties that are consistent with films having other types of interparticle connectivity, including chemical vapor response behavior and quantized double layer charging. Ester coupling of MPCs into assembled films is a straightforward and highly versatile approach that results in robust films that can endure harsher chemical environments than other types of films. The stability of these covalent films is assessed and compared to other more traditional MPC film assemblies.
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Affiliation(s)
- D J Tognarelli
- Department of Chemistry, Gottwald Science Center, University of Richmond, Richmond, Virginia 23173, USA
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Lee BS, Namgoong SK, Lee SG. Monolayer protected Au cluster (MPC)-bound Ru–carbene complex: synthesis and its catalytic activity in ring-closing olefin metathesis. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.04.123] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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