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Nanostructured Palladacycle and its Decorated Ag-NP Composite: Synthesis, Morphological Aspects, Characterization, Quantum Chemical Calculation and Antimicrobial Activity. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-020-05214-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Mohamed AA, Neal SN, Atallah B, AlBab ND, Alawadhi HA, Pajouhafsar Y, Abdou HE, Workie B, Sahle-Demessie E, Han C, Monge M, Lopez-de-Luzuriaga JM, Reibenspies JH, Chehimi MM. Synthesis of gold organometallics at the nanoscale. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.07.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Krishnakumar S, Gopidas KR. Covalent Functionalization of Organic Nanoparticles Using Aryl Diazonium Chemistry and Their Solvent-Dependent Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:1162-1170. [PMID: 28061527 DOI: 10.1021/acs.langmuir.6b03269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A simple method for covalent functionalization of Fréchet-type dendron nanoparticles (FDNs) using tris-bipyridylruthenium(II) is described. Covalent functionalization is achieved by chemically reducing the diazo derivative of a ruthenium(II)bipyridine complex in the presence of FDNs wherein the radical species generated gets covalently linked to the nanoparticle surface. Simplicity, rapidity, and robustness are the advantages offered by the present approach. The nanoparticles, post functionalization, were characterized using transmission electron microscopy, thermogravimetric analysis, and infrared, energy-dispersive X-ray, UV-visible, and nuclear magnetic resonance spectroscopic techniques. Depending on the solvent, the ruthenium complex-linked FDN displays a range of morphologies, including nanoparticles, fiber-networks, and nanocapsules. In the nanocapsules and fiber-networks observed in organic solvents, the ruthenium complex is confined within the interior domain of the aggregate, whereas in the nanoparticles observed in water, it is present on the periphery. The formation of predictable morphologies in different solvents plays a key role in using such self-assembled structures for various applications such as sensing, catalysis, and light harvesting. Characterization of these nanoaggregates using different spectroscopic and microscopic techniques is also described.
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Affiliation(s)
- Sreedevi Krishnakumar
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research (CSIR) , Trivandrum 695019, India
| | - Karical R Gopidas
- Photosciences and Photonics, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Council of Scientific and Industrial Research (CSIR) , Trivandrum 695019, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus , Thiruvananthapuram 695019, India
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5
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Dutta PK, Majumder A, Dutta S, Dhar BB, Munshi P, Sen S. Solvent free, palladium catalyzed highly facile synthesis of diaryl disulfides from aryl thiols. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.074] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hu P, Chen L, Kang X, Chen S. Surface Functionalization of Metal Nanoparticles by Conjugated Metal-Ligand Interfacial Bonds: Impacts on Intraparticle Charge Transfer. Acc Chem Res 2016; 49:2251-2260. [PMID: 27690382 DOI: 10.1021/acs.accounts.6b00377] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Noble metal nanoparticles represent a unique class of functional nanomaterials with physical and chemical properties that deviate markedly from those of their atomic and bulk forms. In order to stabilize the nanoparticles and further manipulate the materials properties, surface functionalization with organic molecules has been utilized as a powerful tool. Among those, mercapto derivatives have been used extensively as the ligands of choice for nanoparticle surface functionalization by taking advantage of the strong affinity of thiol moieties to transition metal surfaces forming (polar) metal-thiolate linkages. Yet, the nanoparticle material properties are generally discussed within the context of the two structural components, the metal cores and the organic capping layers, whereas the impacts of the metal-sulfur interfacial bonds are largely ignored because of the lack of interesting chemistry. In recent years, it has been found that metal nanoparticles may also be functionalized by stable metal-carbon (or even -nitrogen) covalent bonds. Because of the formation of dπ-pπ interactions between the transition-metal nanoparticles and terminal carbon moieties, the interfacial resistance at the metal-ligand interface is markedly reduced, leading to the emergence of unprecedented optical and electronic properties. In this Account, we summarize recent progress in the studies of metal nanoparticles functionalized by conjugated metal-ligand interfacial bonds that include metal-carbene (M═C) and metal-acetylide (M-C≡)/metal-vinylidene (M═C═C) bonds. Such interfacial bonds are readily formed by ligand self-assembly onto nanoparticle metal cores. The resulting nanoparticles exhibit apparent intraparticle charge delocalization between the particle-bound functional moieties, leading to the emergence of optical and electronic properties that are analogous to those of their dimeric counterparts, as manifested in spectroscopic and electrochemical measurements. This is first highlighted by ferrocene-functionalized nanoparticles that exhibit nanoparticle-mediated intervalence charge transfer (IVCT) among the particle-bound ferrocenyl moieties, as manifested in electrochemical and spectroscopic measurements. Such intraparticle charge delocalization has also been observed with other functional moieties such as pyrene and anthracene, where the photoluminescence emissions are consistent with those of their dimeric derivatives. Importantly, as such electronic communication occurs via a through-bond pathway, it may be readily manipulated by the valence states of the nanoparticle cores as well as specific binding of selective molecules/ions to the organic capping shells. These fundamental insights may be exploited for diverse applications, ranging from chemical sensing to (nano)electronics and fuel cell electrochemistry. Several examples are included, such as sensitive detection of nitroaromatic derivatives, metal cations, and fluoride anions by fluorophore-functionalized metal nanoparticles, fabrication of nanoparticle-bridged molecular dyads by, for instance, using nanoparticles cofunctionalized with 4-ethynyl-N,N-diphenyl-aniline (electron donor) and 9-vinylanthracene (electron acceptor), and enhanced electrocatalytic activity of acetylene derivatives-functionalized metal/alloy nanoparticles for oxygen reduction reaction by manipulation of the metal core electron density and hence interactions with reaction intermediates. We conclude this Account with a perspective where inspiration from conventional organometallic chemistry may be exploited for more complicated nanoparticle surface functionalization through the formation of diverse metal-nonmetal bonds. This is a unique platform for ready manipulation of nanoparticle properties and applications.
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Affiliation(s)
- Peiguang Hu
- Department
of Chemistry and Biochemistry, University of California, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Limei Chen
- Department
of Chemistry and Biochemistry, University of California, 1156 High
Street, Santa Cruz, California 95064, United States
| | - Xiongwu Kang
- New
Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, China
| | - Shaowei Chen
- Department
of Chemistry and Biochemistry, University of California, 1156 High
Street, Santa Cruz, California 95064, United States
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Prakash SP, Gopidas KR. Highly Stable Copper Nanoparticles Linked to Organic Frameworks as Recyclable Catalyst for Three-Component Click Cycloaddition in Water. ChemistrySelect 2016. [DOI: 10.1002/slct.201601127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sadasivan P. Prakash
- Photosciences and Photonics, Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695 019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus; Thiruvananthapuram 695 019 India
| | - Karical R. Gopidas
- Photosciences and Photonics, Chemical Sciences and Technology Division; CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST); Thiruvanathapuram 695 019 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus; Thiruvananthapuram 695 019 India
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Sharada S, Suryawanshi PL, Kumar P. R, Gumfekar SP, Narsaiah TB, Sonawane SH. Synthesis of palladium nanoparticles using continuous flow microreactor. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.03.068] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Zhang Y, Mao M, Ji YG, Zhu J, Wu L. Modular metal–carbon stabilized palladium nanoparticles for the catalytic hydrogenation of N-heterocycles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mohamed AA, Salmi Z, Dahoumane SA, Mekki A, Carbonnier B, Chehimi MM. Functionalization of nanomaterials with aryldiazonium salts. Adv Colloid Interface Sci 2015; 225:16-36. [PMID: 26299313 DOI: 10.1016/j.cis.2015.07.011] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 07/18/2015] [Accepted: 07/27/2015] [Indexed: 01/04/2023]
Abstract
This paper reviews the surface modification strategies of a wide range of nanomaterials using aryldiazonium salts. After a brief history of diazonium salts since their discovery by Peter Griess in 1858, we will tackle the surface chemistry using these compounds since the first trials in the 1950s. We will then focus on the modern surface chemistry of aryldiazonium salts for the modification of materials, particularly metallic, semiconductors, metal oxide nanoparticles, carbon-based nanostructures, diamond and clays. The successful modification of sp(2) carbon materials and metals by aryldiazonium salts paved the way to innovative strategies for the attachment of aryl layers to metal oxide nanoparticles and nanodiamonds, and intercalation of clays. Interestingly, diazotized surfaces can easily trap nanoparticles and nanotubes while diazotized nanoparticles can be (electro)chemically reduced on electrode/materials surfaces as molecular compounds. Both strategies provided organized 2D surface assembled nanoparticles. In this review, aryldiazonium salts are highlighted as efficient coupling agents for many types of molecular, macromolecular and nanoparticulate species, therefore ensuring stability to colloids on the one hand, and the construction of composite materials and hybrid systems with robust and durable interfaces/interphases, on the other hand. The last section is dedicated to a selection of patents and industrial products based on aryldiazonium-modified nanomaterials. After nearly 160 years of organic chemistry, diazonium salts have entered a new, long and thriving era for the benefit of materials, colloids, and surface scientists. This tempts us to introduce the terminology of "diazonics" we define as the science and technology of aryldiazonium salt-derived materials.
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Affiliation(s)
- Ahmed A Mohamed
- Department of Chemistry, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover 19901, DE, USA
| | - Zakaria Salmi
- Université Paris-Est, ICMPE UMR 7182 CNRS - UPEC, SPC, PoPI team: Polymers & Particles @ Interfaces, 2-8 rue Henri Dunant, 94320 Thiais, France
| | - Si Amar Dahoumane
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - Ahmed Mekki
- Ecole Militaire Polytechnique, BP 17, Bordj El Bahri 16111, Algiers, Algeria
| | - Benjamin Carbonnier
- Université Paris-Est, ICMPE UMR 7182 CNRS - UPEC, SPC, PoPI team: Polymers & Particles @ Interfaces, 2-8 rue Henri Dunant, 94320 Thiais, France
| | - Mohamed M Chehimi
- Université Paris-Est, ICMPE UMR 7182 CNRS - UPEC, SPC, PoPI team: Polymers & Particles @ Interfaces, 2-8 rue Henri Dunant, 94320 Thiais, France; Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR CNRS 7086, 15 rue J-A de Baïf, 75013 Paris, France.
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11
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Gupta G, Iqbal P, Yin F, Liu J, Palmer RE, Sharma S, Leung KCF, Mendes PM. Pt Diffusion Dynamics for the Formation Cr-Pt Core-Shell Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6917-6923. [PMID: 26039093 DOI: 10.1021/acs.langmuir.5b01410] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Layered core-shell bimetallic Cr-Pt nanoparticles were prepared by the formation and later reduction of an intermediate Pt-ion-containing supramolecular complex onto preformed Cr nanoparticles. The resultant nanoparticles were characterized by X-ray diffraction analysis, transmission electron microscopy, X-ray photoelectron spectroscopy, and aberration-corrected scanning transmission electron microscopy. The results are consistent with the presence of Pt diffusion during or after bimetallic nanoparticle formation, which has resulted in a Pt/Cr-alloyed core and shell. We postulate that such Pt diffusion occurs by an electric-field-assisted process according to Cabrera-Mott theory and that it originates from the low work function of the preformed oxygen-defective Cr nanoparticles and the rather large electron affinity of Pt.
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Affiliation(s)
| | | | - F Yin
- §School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China
| | | | | | | | - K Cham-Fai Leung
- ∥Department of Chemistry and Institute of Creativity, Institute of Molecular Functional Materials, The Hong Kong Baptist University, University Grants Committee, Kowloon Tong, Kowloon, Hong Kong SAR
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Guselnikova OA, Galanov AI, Gutakovskii AK, Postnikov PS. The convenient preparation of stable aryl-coated zerovalent iron nanoparticles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:1192-8. [PMID: 26171295 PMCID: PMC4464190 DOI: 10.3762/bjnano.6.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 04/29/2015] [Indexed: 05/02/2023]
Abstract
A novel approach for the in situ synthesis of zerovalent aryl-coated iron nanoparticles (NPs) based on diazonium salt chemistry is proposed. Surface-modified zerovalent iron NPs (ZVI NPs) were prepared by simple chemical reduction of iron(III) chloride aqueous solution followed by in situ modification using water soluble arenediazonium tosylate. The resulting NPs, with average iron core diameter of 21 nm, were coated with a 10 nm thick organic layer to provide long-term protection in air for the highly reactive zerovalent iron core up to 180 °C. The surface-modified iron NPs possess a high grafting density of the aryl group on the NPs surface of 1.23 mmol/g. FTIR spectroscopy, XRD, HRTEM, TGA/DTA, and elemental analysis were performed in order to characterize the resulting material.
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Affiliation(s)
- Olga A Guselnikova
- Department of Biotechnology and Organic Chemistry, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Andrey I Galanov
- Department of General and Inorganic Chemistry, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
| | - Anton K Gutakovskii
- Institute of Semiconductor Physics, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - Pavel S Postnikov
- Department of General and Inorganic Chemistry, Tomsk Polytechnic University, Tomsk 634050, Russian Federation
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Kesavan S, Prabhakaran A, John SA. Formation of heteroaromatic diazonium grafted layers on gold nanoparticles and their electrocatalytic activity towards an important purine derivative. RSC Adv 2014. [DOI: 10.1039/c4ra04754k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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14
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Prakash SP, Gopidas KR. Palladium-Nanoparticle-Linked Organic Frameworks: Heterogeneous Recyclable Catalysts in Aqueous Medium. ChemCatChem 2014. [DOI: 10.1002/cctc.201400060] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Orefuwa SA, Ravanbakhsh M, Neal SN, King JB, Mohamed AA. Robust Organometallic Gold Nanoparticles. Organometallics 2013. [DOI: 10.1021/om400927g] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Samuel A. Orefuwa
- Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover, Delaware 19901, United States
| | - Mahsa Ravanbakhsh
- Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover, Delaware 19901, United States
| | - Sabine N. Neal
- Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover, Delaware 19901, United States
| | - Julie B. King
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Ahmed A. Mohamed
- Department of Chemistry, Delaware State University, 1200 N. DuPont Highway, Dover, Delaware 19901, United States
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Lee YC, Chen SJ, Huang CL. Finding a Facile Method to Synthesize Decahedral Silver Nanoparticles through a Systematic Study of Temperature Effect on Photomediated Silver Nanostructure Growth. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201000048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ganapathy D, Sekar G. Palladium nanoparticles stabilized by metal–carbon covalent bond: An efficient and reusable nanocatalyst in cross-coupling reactions. CATAL COMMUN 2013. [DOI: 10.1016/j.catcom.2013.04.028] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Hashimoto M, Toshima H, Yonezawa T, Kawai K, Narushima T, Kaga M, Endo K. Responses of RAW264.7 macrophages to water-dispersible gold and silver nanoparticles stabilized by metal-carbon σ-bonds. J Biomed Mater Res A 2013; 102:1838-49. [PMID: 23784947 DOI: 10.1002/jbm.a.34854] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2013] [Revised: 06/02/2013] [Accepted: 06/12/2013] [Indexed: 11/06/2022]
Abstract
Nanometals are currently receiving considerable attention for industrial and biomedical applications, but their potentially hazardous and toxic effects have not been extensively studied. This study evaluated the biological responses of novel water-dispersible gold (Au-NPs) and silver nanoparticles (Ag-NPs) stabilized by Au-C or Ag-C σ-bonds in cultured macrophages (RAW264.7), via analysis of the cell viability, the integrity of the plasma membrane, and the inflammatory and morphological properties. The cultured RAW264.7 was exposed to metal-NPs at various concentrations. The Ag-NPs showed cytotoxicity at high NP concentrations, but the cytotoxic effects of the Au-NPs were smaller than those of the Ag-NPs. For the microscopic analysis, both types of particles were internalized into cells, the morphological changes in the cells which manifested as an expansion of the vesicles' volume, were smaller for the Au-NPs compared with the Ag-NPs. For the Ag-NPs, the endocytosis abilities of the macrophages might have induced harmful effects, because of the expansion of the cell vesicles. Although an inflammatory response was observed for both the Au- and Ag-NPs, the harmful effects of the Au-NPs were smaller than those of the Ag-NPs, with minor morphological changes observed even after internalization of the NPs into the cells.
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Affiliation(s)
- Masanori Hashimoto
- Division of Biomaterials and Bioengineering, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, 061-0293, Japan
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Affiliation(s)
- Shaowei Chen
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064;
| | - Zhenhuan Zhao
- State Key Laboratory of Crystal Materials, Center of Bio and Micro/Nano Functional Materials, Shandong University, Jinan, Shandong 250100, China;
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Center of Bio and Micro/Nano Functional Materials, Shandong University, Jinan, Shandong 250100, China;
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100085, China
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HASHIMOTO M, TOSHIMA H, YONEZAWA T, KAWAI K, NARUSHIMA T, KAGA M, ENDO K. Micromorphological cellular responses of MC3T3-E1 and RAW264.7 after exposure to water-dispersible silver nanoparticles stabilized by metal-carbon σ-bonds. Dent Mater J 2013; 32:725-33. [DOI: 10.4012/dmj.2012-203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Platinum nanoparticles functionalized with acetylene derivatives: Electronic conductivity and electrocatalytic activity in oxygen reduction. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.07.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yan X, Li Q, Li LS. Formation and Stabilization of Palladium Nanoparticles on Colloidal Graphene Quantum Dots. J Am Chem Soc 2012; 134:16095-8. [DOI: 10.1021/ja303730p] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xin Yan
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
| | - Qiqi Li
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
| | - Liang-shi Li
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
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Kang X, Chen S. Electronic conductivity of alkyne-capped ruthenium nanoparticles. NANOSCALE 2012; 4:4183-9. [PMID: 22441806 DOI: 10.1039/c2nr30213f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Ruthenium nanoparticles (2.12 ± 0.72 nm in diameter) were stabilized by the self-assembly of alkyne molecules (from 1-hexyne to 1-hexadecyne) onto the Ru surface by virtue of the formation of Ru-vinylidene interfacial linkages. Infrared measurements depicted three vibrational bands at 2050 cm(-1), 1980 cm(-1) and 1950 cm(-1), which were ascribed to the vibrational stretches of the terminal triple bonds that were bound onto the nanoparticle surface. Thermogravimetric analysis showed that there were about 65 to 96 alkyne ligands per nanoparticle (depending on the ligand chainlength), corresponding to a molecular footprint of 20 to 15 Å(2). This suggests that the ligands likely adopted a head-on configuration on the nanoparticle surface, consistent with a vinylidene bonding linkage due to interfacial tautomeric rearrangements. With this conjugated interfacial bonding interaction, electronic conductivity measurements of the corresponding nanoparticle solid films showed that the nanoparticles all exhibited linear current-potential curves within the potential range of -0.8 V to +0.8 V at varied temperatures (200 to 300 K). The ohmic characters were partly ascribed to the spilling of core electrons into the organic capping layer that facilitated interparticle charge transfer. Furthermore, based on the temperature dependence of the nanoparticle electronic conductivity, the activation energy for interparticle charge transfer was estimated to be in the range of 70 to 90 meV and significantly, the coupling coefficient (β) was found to be 0.31 Å(-1) for nanoparticles stabilized by short-chain alkynes (1-hexyne, 1-octyne, and 1-decyne), and 1.44 Å(-1) for those with long alkynes such as 1-dodecyne, 1-tetradecyne, and 1-hexadecyne. This may be accounted for by the relative contributions of the conjugated metal-ligand interfacial bonding interactions versus the saturated aliphatic backbones of the alkyne ligands to the control of interparticle charge transfer.
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Affiliation(s)
- Xiongwu Kang
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USA
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Kumar VKR, Krishnakumar S, Gopidas KR. Synthesis, Characterization and Catalytic Applications of Palladium Nanoparticle-Cored Dendrimers Stabilized by Metal-Carbon Bonds. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101749] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhou ZY, Kang X, Song Y, Chen S. Enhancement of the electrocatalytic activity of Pt nanoparticles in oxygen reduction by chlorophenyl functionalization. Chem Commun (Camb) 2012; 48:3391-3. [DOI: 10.1039/c2cc17945h] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhou ZY, Ren J, Kang X, Song Y, Sun SG, Chen S. Butylphenyl-functionalized Pt nanoparticles as CO-resistant electrocatalysts for formic acid oxidation. Phys Chem Chem Phys 2012; 14:1412-7. [DOI: 10.1039/c1cp23183a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Maity P, Tsunoyama H, Yamauchi M, Xie S, Tsukuda T. Organogold Clusters Protected by Phenylacetylene. J Am Chem Soc 2011; 133:20123-5. [DOI: 10.1021/ja209236n] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Prasenjit Maity
- Catalysis Research Center, Hokkaido University, Nishi 10, Kita 21, Sapporo 001-0021, Japan
| | - Hironori Tsunoyama
- Catalysis Research Center, Hokkaido University, Nishi 10, Kita 21, Sapporo 001-0021, Japan
| | - Miho Yamauchi
- Catalysis Research Center, Hokkaido University, Nishi 10, Kita 21, Sapporo 001-0021, Japan
| | - Songhai Xie
- Catalysis Research Center, Hokkaido University, Nishi 10, Kita 21, Sapporo 001-0021, Japan
| | - Tatsuya Tsukuda
- Catalysis Research Center, Hokkaido University, Nishi 10, Kita 21, Sapporo 001-0021, Japan
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Ratheesh Kumar VK, Gopidas KR. Palladium nanoparticle-cored G1-dendrimer stabilized by carbon–Pd bonds: synthesis, characterization and use as chemoselective, room temperature hydrogenation catalyst. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.04.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Laurentius L, Stoyanov SR, Gusarov S, Kovalenko A, Du R, Lopinski GP, McDermott MT. Diazonium-derived aryl films on gold nanoparticles: evidence for a carbon-gold covalent bond. ACS NANO 2011; 5:4219-27. [PMID: 21520960 DOI: 10.1021/nn201110r] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Tailoring the surface chemistry of metallic nanoparticles is generally a key step for their use in a wide range of applications. There are few examples of organic films covalently bound to metal nanoparticles. We demonstrate here that aryl films are formed on gold nanoparticles from the spontaneous reduction of diazonium salts. The structure and the bonding of the film is probed with surface-enhanced Raman scattering (SERS). Extinction spectroscopy and SERS show that a nitrobenzene film forms on gold nanoparticles from the corresponding diazonium salt. Comparison of the SERS spectrum with spectra computed from density functional theory models reveals a band characteristic of a Au-C stretch. The observation of this stretch is direct evidence of a covalent bond. A similar band is observed in high-resolution electron energy loss spectra of nitrobenzene layers on planar gold. The bonding of these types of films through a covalent interaction on gold is consistent with their enhanced stability observed in other studies. These findings provide motivation for the use of diazonium-derived films on gold and other metals in applications where high stability and/or strong adsorbate-substrate coupling are required.
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Affiliation(s)
- Lars Laurentius
- Department of Chemistry and National Institute for Nanotechnology, University of Alberta, Edmonton, Alberta, Canada
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31
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Chen W, Pradhan S, Chen S. Photoluminescence and conductivity studies of anthracene-functionalized ruthenium nanoparticles. NANOSCALE 2011; 3:2294-2300. [PMID: 21494751 DOI: 10.1039/c1nr10158g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Carbene-stabilized ruthenium nanoparticles were functionalized with anthryl moieties by olefin metathesis reactions with 9-vinylanthracene, at a surface concentration of about 19.7%, as estimated by (1)H NMR spectroscopic measurements. Because of the conjugated metal-ligand interfacial bonding interactions, UV-vis measurements of the resulting nanoparticles showed a new broad absorption band centered at 612 nm, in addition to the peaks observed with monomeric vinylanthracene. FTIR measurements depicted apparent red-shifts of the aromatic vibrational stretches as compared to those of the monomeric vinylanthracene, suggestive of decreasing bonding order of the aromatic moieties as a result of extended conjugation between the particle-bound anthracene groups. Photoluminescence measurements confirmed the notion that effective intraparticle charge delocalization occurred by virtue of the conjugated metal-ligand interfacial bonding interactions, with apparent red-shifts of the excitation peaks and blue-shifts of the emission features, as compared to those of the monomeric vinylanthracene. The diminishment of the Stokes shift was, at least in part, attributed to the different chemical environments surrounding the anthryl moieties on the nanoparticle surface. Electronic conductivity measurements showed that because of the conjugated Ru[double bond, length as m-dash]C π bonds, the activation energy for interparticle charge transport was about one order of magnitude lower than that observed with particles passivated by alkanethiolates. Additionally, whereas the original carbene-stabilized nanoparticles exhibited a semiconductor-metal transition within the temperature range of 100 to 320 K, anthracene-functionalized nanoparticles displayed apparent semiconducting behaviors with the ensemble conductivity increasing monotonically with temperature, most likely due to the disordering within the nanoparticle solids that arose from the different structures of the carbene ligands and anthryl moieties. These studies indicate that anthracene functionalization may be exploited as an effective route towards the manipulation of nanoparticle optoelectronic properties.
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Affiliation(s)
- Wei Chen
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USA
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Griffete N, Herbst F, Pinson J, Ammar S, Mangeney C. Preparation of Water-Soluble Magnetic Nanocrystals Using Aryl Diazonium Salt Chemistry. J Am Chem Soc 2011; 133:1646-9. [DOI: 10.1021/ja108928b] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nébéwia Griffete
- ITODYS, Université Paris Diderot-Paris 7 (UMR CNRS 7086), 15 rue Jean de Baïf, 75013 Paris, France
| | - Frédéric Herbst
- ITODYS, Université Paris Diderot-Paris 7 (UMR CNRS 7086), 15 rue Jean de Baïf, 75013 Paris, France
| | - Jean Pinson
- Physico-Chimie des Electrolytes, des Colloïdes et Sciences Analytiques, ESPCI ParisTech, CNRS UMR 7195, 10 rue Vauquelin,75231 Paris Cedex 05, France
| | - Souad Ammar
- ITODYS, Université Paris Diderot-Paris 7 (UMR CNRS 7086), 15 rue Jean de Baïf, 75013 Paris, France
| | - Claire Mangeney
- ITODYS, Université Paris Diderot-Paris 7 (UMR CNRS 7086), 15 rue Jean de Baïf, 75013 Paris, France
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33
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Bélanger D, Pinson J. Electrografting: a powerful method for surface modification. Chem Soc Rev 2011; 40:3995-4048. [DOI: 10.1039/c0cs00149j] [Citation(s) in RCA: 751] [Impact Index Per Article: 57.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Zhou ZY, Kang X, Song Y, Chen S. Butylphenyl-functionalized palladium nanoparticles as effective catalysts for the electrooxidation of formic acid. Chem Commun (Camb) 2011; 47:6075-7. [DOI: 10.1039/c1cc11235j] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mirkhalaf F, Schiffrin DJ. Electrocatalytic oxygen reduction on functionalized gold nanoparticles incorporated in a hydrophobic environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14995-5001. [PMID: 20799698 DOI: 10.1021/la1021565] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The electrocatalytic properties of gold nanoparticles covalently capped with a monolayer film of 1,4-decylphenyl groups for oxygen reduction in an alkaline solution have been studied. Functionalized nanoparticles were adsorbed on a film of the same capping ligand previously grafted to a glassy carbon electrode. The molecular film-nanoparticle assembly was characterized by cyclic voltammetry and XPS. It is shown that although the attachment of the capping ligand to the electrode surface blocks direct electron transfer, the metal centers of the incorporated nanoparticles provide sites for electron tunneling from the electrode surface thus leading to sites where oxygen reduction can take place. Rotating disk voltammetry shows that the oxygen reduction reaction follows mainly a peroxide formation channel on these nanostructured surfaces. The capping ligand greatly influences the reduction mechanism by establishing a local hydrophobic environment at the reaction centers within the film.
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Affiliation(s)
- Fakhradin Mirkhalaf
- Sonochemistry Centre, Faculty of Health and Life Sciences, Coventry University, Coventry, CV1 5FB, UK.
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36
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Kumar VR, Gopidas K. Synthesis and Characterization of Gold-Nanoparticle-Cored Dendrimers Stabilized by Metal-Carbon Bonds. Chem Asian J 2010; 5:887-96. [DOI: 10.1002/asia.200900388] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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37
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Jakhmola A, Bhandari R, Pacardo DB, Knecht MR. Peptide template effects for the synthesis and catalytic application of Pdnanoparticle networks. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b922018f] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Liras M, González-Béjar M, Scaiano JC. On-off QD switch that memorizes past recovery from quenching by diazonium salts. Phys Chem Chem Phys 2010; 12:9757-62. [DOI: 10.1039/c003490h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Solid-state electronic conductivity of ruthenium nanoparticles passivated by metal–carbon covalent bonds. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.09.066] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Chen W, Chen S, Ding F, Wang H, Brown LE, Konopelski JP. Nanoparticle-Mediated Intervalence Transfer. J Am Chem Soc 2008; 130:12156-62. [DOI: 10.1021/ja803887b] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Chen
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
| | - Shaowei Chen
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
| | - Feizhi Ding
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
| | - Haobin Wang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
| | - Lauren E. Brown
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
| | - Joseph P. Konopelski
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064 and Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003
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