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Mandal A, Kushwaha R, Mandal AA, Bajpai S, Yadav AK, Banerjee S. Transition Metal Complexes as Antimalarial Agents: A Review. ChemMedChem 2023; 18:e202300326. [PMID: 37436090 DOI: 10.1002/cmdc.202300326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/11/2023] [Accepted: 07/11/2023] [Indexed: 07/13/2023]
Abstract
In antimalarial drug development research, overcoming drug resistance has been a major challenge for researchers. Nowadays, several drugs like chloroquine, mefloquine, sulfadoxine, and artemisinin are used to treat malaria. But increment in drug resistance has pushed researchers to find novel drugs to tackle drug resistance problems. The idea of using transition metal complexes with pharmacophores as ligands/ligand pendants to show enhanced antimalarial activity with a novel mechanism of action has gained significant attention recently. The advantages of metal complexes include tunable chemical/physical properties, redox activity, avoiding resistance factors, etc. Several recent reports have successfully demonstrated that the metal complexation of known organic antimalarial drugs can overcome drug resistance by showing enhanced activities than the parent drugs. This review has discussed the fruitful research works done in the past few years falling into this criterion. Based on transition metal series (3d, 4d, or 5d), the antimalarial metal complexes have been divided into three broad categories (3d, 4d, or 5d metal-based), and their activities have been compared with the similar control complexes as well as the parent drugs. Furthermore, we have also commented on the potential issues and their possible solution for translating these metal-based antimalarial complexes into the clinic.
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Affiliation(s)
- Apurba Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Rajesh Kushwaha
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Arif Ali Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Sumit Bajpai
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Ashish Kumar Yadav
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
| | - Samya Banerjee
- Department of Chemistry, Indian Institute of Technology (BHU), 221005, Varanasi, India
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2
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Recent Advances in Nanomaterial-Based Sensing for Food Safety Analysis. Processes (Basel) 2022. [DOI: 10.3390/pr10122576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
The increasing public attention on unceasing food safety incidents prompts the requirements of analytical techniques with high sensitivity, reliability, and reproducibility to timely prevent food safety incidents occurring. Food analysis is critically important for the health of both animals and human beings. Due to their unique physical and chemical properties, nanomaterials provide more opportunities for food quality and safety control. To date, nanomaterials have been widely used in the construction of sensors and biosensors to achieve more accurate, fast, and selective food safety detection. Here, various nanomaterial-based sensors for food analysis are outlined, including optical and electrochemical sensors. The discussion mainly involves the basic sensing principles, current strategies, and novel designs. Additionally, given the trend towards portable devices, various smartphone sensor-based point-of-care (POC) devices for home care testing are discussed.
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3
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Thomas SR, Yang W, Morgan DJ, Davies TE, Li JJ, Fischer RA, Huang J, Dimitratos N, Casini A. Bottom-up Synthesis of Water-Soluble Gold Nanoparticles Stabilized by N-Heterocyclic Carbenes: From Structural Characterization to Applications. Chemistry 2022; 28:e202201575. [PMID: 35801389 PMCID: PMC9804724 DOI: 10.1002/chem.202201575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Indexed: 01/09/2023]
Abstract
N-heterocyclic carbenes (NHCs) have become attractive ligands for functionalizing gold nanoparticle surfaces with applications ranging from catalysis to biomedicine. Despite their great potential, NHC stabilized gold colloids (NHC@AuNPs) are still scarcely explored and further efforts should be conducted to improve their design and functionalization. Here, the 'bottom-up' synthesis of two water-soluble gold nanoparticles (AuNP-1 and AuNP-2) stabilized by hydrophilic mono- and bidentate NHC ligands is reported together with their characterization by various spectroscopic and analytical methods. The NPs showed key differences likely to be due to the selected NHC ligand systems. Transmission electron microscopy (TEM) images showed small quasi-spherical and faceted NHC@AuNPs of similar particle size (ca. 2.3-2.6 nm) and narrow particle size distribution, but the colloids featured different ratios of Au(I)/Au(0) by X-ray photoelectron spectroscopy (XPS). Furthermore, the NHC@AuNPs were supported on titania and fully characterized. The new NPs were studied for their catalytic activity towards the reduction of nitrophenol substrates, the reduction of resazurin and for their photothermal efficiency. Initial results on their application in photothermal therapy (PTT) were obtained in human cancer cells in vitro. The aforementioned reactions represent important model reactions towards wastewater remediation, bioorthogonal transformations and cancer treatment.
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Affiliation(s)
- Sophie R. Thomas
- Chair of Medicinal and Bioinorganic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstrasse 485747GarchingGermany
| | - Wenjie Yang
- School of Chemical and Biomolecular EngineeringUniversity of SydneyNSW2006Australia
| | - David J. Morgan
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATU.K.
| | - Thomas E. Davies
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3ATU.K.
| | - Jiao Jiao Li
- Kolling InstituteFaculty of Medicine and HealthUniversity of SydneySt LeonardsNSW2065Australia
| | - Roland A. Fischer
- Chair of Inorganic and Metal–Organic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstrasse 485747GarchingGermany
| | - Jun Huang
- School of Chemical and Biomolecular EngineeringUniversity of SydneyNSW2006Australia
| | - Nikolaos Dimitratos
- Department of Industrial Chemistry “Toso Montanari” Universita' degli Studi di BolognaViale Risorgimento40136BolognaItaly,Center for Chemical Catalysis - C3, Alma Mater Studiorum Università di BolognaViale Risorgimento 440136BolognaItaly
| | - Angela Casini
- Chair of Medicinal and Bioinorganic ChemistryDepartment of ChemistryTechnical University of MunichLichtenbergstrasse 485747GarchingGermany,Munich Data Science Institute (MDSI)Technical University of MunichWalther-von-Dyck Strasse 1085748GarchingGermany
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4
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Muskan, Gangadharan A, Goel P, Patel M, Verma AK. Recent applications of nanoparticles in organic transformations. Org Biomol Chem 2022; 20:6979-6993. [PMID: 35972027 DOI: 10.1039/d2ob01114j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variation in the size of metal nanoparticles leads to a difference in their properties. As the size of metal nanoparticles decreases, the surface area increases which leads to an increase in the reactivity of metal nanoparticles. Metals like Au, Ag, Pd, and Pt have interesting properties when used in nanometric dimensions. They function efficiently in significant industrial processes as electrocatalysts and photocatalysts in various organic reactions. Recently, the green biosynthesis of nanoparticles has attracted the attention of researchers. With environmental pollution rising over the past few decades, metal nanoparticle catalysts could be the key to subdue the toxic effects. Being versatile, they can be used to degrade pollutants, develop solar cells, convert toxic nitroaromatic compounds, significantly reduce CO2 emissions per unit of energy, and many more. Owing to their unique properties, nanoparticles have wide applications in biomedicine, for example, gold cages are promising agents for cancer diagnosis and therapy. Transition metal-oxide nanoparticles have been considered one of the best supercapacitor electrodes with high electrochemical performance. In this review, we have summarised fundamental concepts of metal nanoparticles over the last decade's main emphasis from 2010 to 2021. It focuses on the exceptional use of these nanocatalysts in various organic reactions. Additionally, we have also discussed the utility of these reactions and their crucial role in solving the problems of today. Through this article, we hope to provide the necessary framework needed to further advance the applications of metal nanoparticles as catalysts.
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Affiliation(s)
- Muskan
- Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Arya Gangadharan
- Ramjas College, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Pratiksha Goel
- Ramjas College, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Monika Patel
- Department of Chemistry, University of Delhi, Delhi-110007, India. .,Ramjas College, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Akhilesh K Verma
- Department of Chemistry, University of Delhi, Delhi-110007, India. .,Institution of Eminence, University of Delhi, Delhi-110007, India
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5
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Eisen C, Chin JM, Reithofer MR. Catalytically Active Gold Nanomaterials Stabilized by N-heterocyclic Carbenes. Chem Asian J 2021; 16:3026-3037. [PMID: 34399027 PMCID: PMC8597167 DOI: 10.1002/asia.202100731] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/12/2021] [Indexed: 12/04/2022]
Abstract
Solid supported or ligand capped gold nanomaterials (AuNMs) emerged as versatile and recyclable heterogeneous catalysts for a broad variety of conversions in the ongoing catalytic 'gold rush'. Existing at the border of homogeneous and heterogeneous catalysis, AuNMs offer the potential to merge high catalytic activity with significant substrate selectivity. Owing to their strong binding towards the surface atoms of AuMNs, NHCs offer tunable activation of surface atoms while maintaining selectivity and stability of the NM even under challenging conditions. This work summarizes well-defined catalytically active NHC capped AuNMs including spherical nanoparticles and atom-precise nanoclusters as well as the important NHC design choices towards activity and (stereo-)selectivity enhancements.
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Affiliation(s)
- Constantin Eisen
- Department of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
| | - Jia Min Chin
- Department of Physical ChemistryFaculty of ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
| | - Michael R. Reithofer
- Department of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWähringer Straße 421090ViennaAustria
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6
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Sherman LM, Strausser SL, Borsari RK, Jenkins DM, Camden JP. Imidazolinium N-Heterocyclic Carbene Ligands for Enhanced Stability on Gold Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5864-5871. [PMID: 33914540 DOI: 10.1021/acs.langmuir.1c00314] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
N-heterocyclic carbenes (NHCs) have emerged as versatile and robust ligands for noble metal surface modifications due to their ability to form compact, self-assembled monolayers. Despite a growing body of research, previous NHC surface modification schemes have employed just two structural motifs: the benzimidazolium NHC and the imidazolium NHC. However, different NHC moieties, including saturated NHCs, are often more effective in homogenous catalysis chemistry than these aforementioned motifs and may impart numerous advantages to NHC surfaces, such as increased stability and access to chiral groups. This work explores the preparation and stability of NHC-coated gold surfaces using imidazolium and imidazolinium NHC ligands. X-ray photoelectron spectroscopy and surface-enhanced Raman spectroscopy demonstrate the attachment of NHC ligands to the gold surface and show enhanced stability of imidazolinium compared to the traditional imidazolium under harsh acidic conditions.
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Affiliation(s)
- Lindy M Sherman
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, South Bend 46556, Indiana, United States
| | - Shelby L Strausser
- Department of Chemistry, University of Tennessee, Knoxville 37996, Tennessee, United States
| | - Rowan K Borsari
- Department of Chemistry, University of Tennessee, Knoxville 37996, Tennessee, United States
| | - David M Jenkins
- Department of Chemistry, University of Tennessee, Knoxville 37996, Tennessee, United States
| | - Jon P Camden
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, South Bend 46556, Indiana, United States
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7
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N-Heterocyclic carbenes as “smart” gold nanoparticle stabilizers: State-of-the art and perspectives for biomedical applications. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121743] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Sun N, Zhang S, Simon F, Steiner AM, Schubert J, Du Y, Qiao Z, Fery A, Lissel F. Poly(3-hexylthiophene)s Functionalized with N-Heterocyclic Carbenes as Robust and Conductive Ligands for the Stabilization of Gold Nanoparticles. Angew Chem Int Ed Engl 2021; 60:3912-3917. [PMID: 33135279 PMCID: PMC7898828 DOI: 10.1002/anie.202012216] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/22/2020] [Indexed: 12/30/2022]
Abstract
Recently, N-heterocyclic carbenes (NHCs) are explored as anchor groups to bind organic ligands to colloidal gold (i.e. gold nanoparticles, Au NPs), yet these efforts are confined to non-conjugated ligands so far-that is, focused solely on exploiting the stability aspect. Using NHCs to link Au NPs and electronically active organic components, for example, conjugated polymers (CPs), will allow capitalizing on both the stability as well as the inherent conductivity of the NHC anchors. Here, we report three types of Br-NHC-Au-X (X=Cl, Br) complexes, which, when used as starting points for Kumada polymerizations, yield regioregular poly(3-hexylthiophenes)-NHC-Au (P3HTs-NHC-Au) with narrow molecular weight distributions. The corresponding NPs are obtained via direct reduction and show excellent thermal as well as redox stability. The NHC anchors enable electron delocalization over the gold/CP interface, resulting in an improved electrochromic response behavior in comparison with P3HT-NHC-Au.
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Affiliation(s)
- Ningwei Sun
- Institute of Macromolecular ChemistryLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
| | - Shi‐Tong Zhang
- State Key Laboratory of Supramolecular Structures and MaterialsCollege of ChemistryJilin UniversityChangchun130012China
| | - Frank Simon
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
| | - Anja Maria Steiner
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
| | - Jonas Schubert
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
| | - Yixuan Du
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
| | - Zhi Qiao
- Institute of Macromolecular ChemistryLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
- Technische Universität DresdenMommsenstrasse 401064DresdenGermany
| | - Andreas Fery
- Institute for Physical Chemistry and Polymer PhysicsLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
- Technische Universität DresdenMommsenstrasse 401064DresdenGermany
| | - Franziska Lissel
- Institute of Macromolecular ChemistryLeibniz Institute of Polymer ResearchHohe Strasse 601069DresdenGermany
- Technische Universität DresdenMommsenstrasse 401064DresdenGermany
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9
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Sun N, Zhang S, Simon F, Steiner AM, Schubert J, Du Y, Qiao Z, Fery A, Lissel F. Mit N‐heterocyclischen Carbenen funktionalisierte Poly(3‐hexylthiophene) als robuste und leitfähige Liganden zur Stabilisierung von Goldnanopartikeln. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202012216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ningwei Sun
- Institut Makromolekulare Chemie Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
| | - Shi‐Tong Zhang
- State Key Laboratory of Supramolecular Structures and Materials College of Chemistry Jilin University Changchun 130012 China
| | - Frank Simon
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
| | - Anja Maria Steiner
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
| | - Jonas Schubert
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
| | - Yixuan Du
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
| | - Zhi Qiao
- Institut Makromolekulare Chemie Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
- Technische Universität Dresden Mommsenstraße 4 01064 Dresden Deutschland
| | - Andreas Fery
- Institut für Physikalische Chemie und Physik der Polymere Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
- Technische Universität Dresden Mommsenstraße 4 01064 Dresden Deutschland
| | - Franziska Lissel
- Institut Makromolekulare Chemie Leibniz-Institut für Polymerforschung Dresden Hohe Straße 6 01069 Dresden Deutschland
- Technische Universität Dresden Mommsenstraße 4 01064 Dresden Deutschland
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10
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Rúbio GMDM, Keppler BK, Chin JM, Reithofer MR. Synthetically Versatile Nitrogen Acyclic Carbene Stabilized Gold Nanoparticles. Chemistry 2020; 26:15859-15862. [PMID: 32996636 PMCID: PMC7894353 DOI: 10.1002/chem.202003679] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/23/2020] [Indexed: 01/07/2023]
Abstract
N-heterocyclic carbenes (NHCs) have received significant attention as gold nanoparticle stabilizers due to their strong binding affinity towards gold. However, their tunability is limited by the difficulty in obtaining nonsymmetric NHCs. In this regard, N-acyclic carbenes (NACs) are attractive alternatives due to their high synthetic versatility, allowing easy tuning of their steric and electronic properties towards specific applications. This work reports the first series of stable and monodisperse NAC-functionalized gold nanoparticles. These particles with sizes ranging 3.8 to 11.6 nm were characterized using NMR, UV/Vis and TEM. The nanoparticles display good stability at elevated temperatures and for extended periods both dried or dispersed in a medium, as well as in the presence of exogenous thiols. Importantly, these NAC-stabilized gold nanoparticles offer a promising and versatile alternative to NHC-stabilized gold nanoparticles.
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Affiliation(s)
- Guilherme M. D. M. Rúbio
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Bernhard K. Keppler
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Jia Min Chin
- Institute of Physical ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
| | - Michael R. Reithofer
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWaehringer Strasse 421090ViennaAustria
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11
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Taira T, Yanagimoto T, Fouquet T, Sakai K, Sakai H, Imura T. Synthesis of an N-Heterocyclic Carbene-based Au(I) Coordinate Surfactant: Application for Alkyne Hydration Based on Au Nanoparticle Formation. J Oleo Sci 2020; 69:871-882. [PMID: 32641614 DOI: 10.5650/jos.ess20063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study, an N-heterocyclic carbene (NHC)-based metal coordinate surfactant (MCS), NHC-Au-MCS, in which the NHC framework afforded the bonding of the Au(I) at the linkage of the hydrophilic and hydrophobic moieties, was synthesized. The structure of NHC-Au-MCS was confirmed by 1H and 13C NMR spectroscopic measurements together with elemental analysis. Matrix-assisted laser desorption/ionization (MALDI), laser desorption/ionization (LDI), and electrospray ionization mass spectrometry (ESI-MS) indicated the distinct reactivity of NHC-Au-MCS, such as the exchange of Br to Cl and the formation of a cationic Au complex, where the two NHC ligands were coordinated to an Au(I) center upon laser activation. The surface tension and dynamic light scattering (DLS) measurements revealed that the coordination of Au(I) to NHC reduced the critical micelle concentration (CMC) of NHC-Au-MCS (1.3×10-5 M), which resulted in the formation of micelles at concentrations higher than the CMC in water. We also confirmed that the surface-active Au(I) complex of NHC-Au-MCS catalyzed the hydration of 1-dodecyne to 2-dodecanone in water in the absence of an organic solvent. On the basis of the detailed mechanistic investigations regarding the reactivity of NHC-Au-MCS, we revealed that NHC-Au-MCS partially translated into Au nanoparticles (AuNPs), which facilitated alkyne hydration. These mechanistic studies were supported by UV-vis measurements, transmission electron microscopy (TEM), and LDI-MS.
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Affiliation(s)
- Toshiaki Taira
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Thierry Fouquet
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Kenichi Sakai
- Faculty of Science and Technology, Tokyo University of Science
| | - Hideki Sakai
- Faculty of Science and Technology, Tokyo University of Science
| | - Tomohiro Imura
- National Institute of Advanced Industrial Science and Technology (AIST)
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12
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Yang C, Li S, Zhang Z, Wang H, Liu H, Jiao F, Guo Z, Zhang X, Hu W. Organic-Inorganic Hybrid Nanomaterials for Electrocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001847. [PMID: 32510861 DOI: 10.1002/smll.202001847] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/28/2020] [Indexed: 05/03/2023]
Abstract
Electrochemical CO2 reduction (ECR) to value-added chemicals and fuels is regarded as an effective strategy to mitigate climate change caused by CO2 from excess consumption of fossil fuels. To achieve CO2 conversion with high faradaic efficiency, low overpotential, and excellent product selectivity, rational design and synthesis of efficient electrocatalysts is of significant importance, which dominates the development of ECR field. Individual organic molecules or inorganic catalysts have encountered a bottleneck in performance improvement owing to their intrinsic shortcomings. Very recently, organic-inorganic hybrid nanomaterials as electrocatalysts have exhibited high performance and interesting reaction processes for ECR due to the integration of the advantages of both heterogeneous and homogeneous catalytic processes, attracting widespread interest. In this work, the recent advances in designing various organic-inorganic hybrid nanomaterials at the atomic and molecular level for ECR are systematically summarized. Particularly, the reaction mechanism and structure-performance relationship of organic-inorganic hybrid nanomaterials toward ECR are discussed in detail. Finally, the challenges and opportunities toward controlled synthesis of advanced electrocatalysts are proposed for paving the development of the ECR field.
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Affiliation(s)
- Chenhuai Yang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Shuyu Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Zhicheng Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Haiqing Wang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan, 250022, China
| | - Huiling Liu
- Institute for New Energy Materials and Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin University of Technology, Tianjin, 300384, China
| | - Fei Jiao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Zhenguo Guo
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xiaotao Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
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13
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Lomelí-Rosales DA, Aguilar-Alcaraz A, Alvarado-Rodríguez JG, Becerra-Martínez E, Zamudio-Ojeda A, Velázquez-Juárez G, Rangel-Salas II, Peregrina-Lucano AA, López-Reyes ME, Cortés-Llamas SA. Synthesis of neutral and cationic NHC-Au complexes as nanoparticle precursors. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114476] [Citation(s) in RCA: 1] [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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14
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Haziz UF, Haque RA, Zhan SZ, Razali MR. Mononuclear Gold(I) bis-N-heterocyclic carbene: Synthesis and photophysical study. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Young AJ, Eisen C, Rubio GM, Chin JM, Reithofer MR. pH responsive histidin-2-ylidene stabilized gold nanoparticles. J Inorg Biochem 2019; 199:110707. [DOI: 10.1016/j.jinorgbio.2019.110707] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/25/2019] [Accepted: 05/02/2019] [Indexed: 01/09/2023]
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16
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Girase TR, Kapdi AR. Novel Carbazole-Based N-Heterocyclic Carbene Ligands to Access Synthetically Relevant Stilbenes in Pd-Catalyzed Coupling Processes. Chem Asian J 2019; 14:2611-2619. [PMID: 31034762 DOI: 10.1002/asia.201900419] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/27/2019] [Indexed: 12/21/2022]
Abstract
A series of new carbazole-based N-heterocyclic carbene (NHC) ligands have been synthesized in a simple and facile synthetic route and subsequently used in a Pd/carbazole-based NHC catalytic system, which was found to be effective in catalyzing Heck reactions to provide substituted stilbene derivatives in good yields. Several bioactive stilbenes, including pterostilbene, pinosylvin, trimethoxy resveratrol, and resveratrol, were synthesized in good yields, and a 10 mmol scale-up was also performed for trimethoxy resveratrol. The synthetic application was also extended by performing a double-tandem chemoselective Heck reaction followed by Miyaura borylation in a one-pot procedure to give single-step access to synthetically useful stilbenyl boronate esters. Similarly, a unique triple-tandem protocol of a chemoselective Heck reaction/Miyaura borylation/Suzuki-Miyaura coupling reaction sequence was performed for the one-pot modification of biologically relevant molecules.
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Affiliation(s)
- Tejpalsingh Ramsingh Girase
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Marg Road, Matunga, Mumbai, 400019, India
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Marg Road, Matunga, Mumbai, 400019, India
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17
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Naikwade A, Jagadale M, Kale D, Gajare S, Bansode P, Rashinkar G. Intramolecular O‐arylation using nano‐magnetite supported
N
‐heterocyclic carbene‐copper complex with wingtip ferrocene. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Megha Jagadale
- Department of ChemistryShivaji University Kolhapur 416004, M.S. India
| | - Dolly Kale
- Department of ChemistryShivaji University Kolhapur 416004, M.S. India
| | - Shivanand Gajare
- Department of ChemistryShivaji University Kolhapur 416004, M.S. India
| | - Prakash Bansode
- Department of ChemistryShivaji University Kolhapur 416004, M.S. India
| | - Gajanan Rashinkar
- Department of ChemistryShivaji University Kolhapur 416004, M.S. India
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18
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Ventura-Espinosa D, Martín S, Mata JA. The non-innocent role of graphene in the formation/immobilization of ultra-small gold nanoparticles functionalized with N-heterocyclic carbene ligands. J Catal 2019. [DOI: 10.1016/j.jcat.2019.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Young AJ, Sauer M, Rubio GMDM, Sato A, Foelske A, Serpell CJ, Chin JM, Reithofer MR. One-step synthesis and XPS investigations of chiral NHC-Au(0)/Au(i) nanoparticles. NANOSCALE 2019; 11:8327-8333. [PMID: 30984947 DOI: 10.1039/c9nr00905a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although N-heterocyclic carbenes (NHCs) have been demonstrated as suitable ligands for the stabilisation of gold nanoparticles (AuNPs) through a variety of methods, the manner in which such AuNPs form is yet to be fully elucidated. We report a simple and fast one-step synthesis of uniform chiral (l/d)-histidin-2-ylidene stabilised gold nanoparticles using the organometallic Au(i) complex as a well defined starting material. The resulting nanoparticles have an average size of 2.35 ± 0.43 nm for the L analog whereas an average size of 2.25 ± 0.39 nm was found for the D analog. X-ray photoelectron spectroscopy analyses reveal the presence of Au(i) and Au(0) in all NHC stabilised AuNPs. In contrast, measured X-ray photoelectron spectra of dodecanethiol protected gold nanoparticles showed only the presence of a Au(0) species. This observation leads us to postulate that AuNPs synthesised from organometallic NHC-Au(i) complexes exhibit a monolayer of Au(i) surrounding a Au(0) core. This work highlights the importance of synthetic method choice for NHC-stabilized AuNPs, as this could determine Au oxidation states and resulting AuNP properties such as catalytic activities and stabilities.
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Affiliation(s)
- Adam J Young
- Gray Centre for Advanced Materials, School of Mathematics and Physical Sciences, University of Hull, Cottingham Road, Hull, East Riding of Yorkshire, HU6 7RX, UK.
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20
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Smith CA, Narouz MR, Lummis PA, Singh I, Nazemi A, Li CH, Crudden CM. N-Heterocyclic Carbenes in Materials Chemistry. Chem Rev 2019; 119:4986-5056. [PMID: 30938514 DOI: 10.1021/acs.chemrev.8b00514] [Citation(s) in RCA: 345] [Impact Index Per Article: 69.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
N-Heterocyclic carbenes (NHCs) have become one of the most widely studied class of ligands in molecular chemistry and have found applications in fields as varied as catalysis, the stabilization of reactive molecular fragments, and biochemistry. More recently, NHCs have found applications in materials chemistry and have allowed for the functionalization of surfaces, polymers, nanoparticles, and discrete, well-defined clusters. In this review, we provide an in-depth look at recent advances in the use of NHCs for the development of functional materials.
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Affiliation(s)
- Christene A Smith
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Mina R Narouz
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Paul A Lummis
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Ishwar Singh
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Ali Nazemi
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Chien-Hung Li
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6
| | - Cathleen M Crudden
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada , K7L 3N6.,Institute of Transformative Bio-Molecules, ITbM-WPI , Nagoya University , Nagoya , Chikusa 464-8601 , Japan
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21
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Lovat G, Doud EA, Lu D, Kladnik G, Inkpen MS, Steigerwald ML, Cvetko D, Hybertsen MS, Morgante A, Roy X, Venkataraman L. Determination of the structure and geometry of N-heterocyclic carbenes on Au(111) using high-resolution spectroscopy. Chem Sci 2019; 10:930-935. [PMID: 30774887 PMCID: PMC6346291 DOI: 10.1039/c8sc03502d] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/04/2018] [Indexed: 12/01/2022] Open
Abstract
N-heterocyclic carbenes (NHCs) bind very strongly to transition metals due to their unique electronic structure featuring a divalent carbon atom with a lone pair in a highly directional sp2-hybridized orbital. As such, they can be assembled into monolayers on metal surfaces that have enhanced stability compared to their thiol-based counterparts. The utility of NHCs to form such robust self-assembled monolayers (SAMs) was only recently recognized and many fundamental questions remain. Here we investigate the structure and geometry of a series of NHCs on Au(111) using high-resolution X-ray photoelectron spectroscopy and density functional theory calculations. We find that the N-substituents on the NHC ring strongly affect the molecule-metal interaction and steer the orientation of molecules in the surface layer. In contrast to previous reports, our experimental and theoretical results provide unequivocal evidence that NHCs with N-methyl substituents bind to undercoordinated adatoms to form flat-lying complexes. In these SAMs, the donor-acceptor interaction between the NHC lone pair and the undercoordinated Au adatom is primarily responsible for the strong bonding of the molecules to the surface. NHCs with bulkier N-substituents prevent the formation of such complexes by forcing the molecules into an upright orientation. Our work provides unique insights into the bonding and geometry of NHC monolayers; more generally, it charts a clear path to manipulating the interaction between NHCs and metal surfaces using traditional coordination chemistry synthetic strategies.
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Affiliation(s)
- Giacomo Lovat
- Department of Applied Physics and Applied Mathematics , Columbia University , New York , New York 10027 , USA .
| | - Evan A Doud
- Department of Chemistry , Columbia University , New York , New York 10027 , USA .
| | - Deyu Lu
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York , USA
| | - Gregor Kladnik
- CNR-IOM Laboratorio Nazionale TASC , Basovizza SS-14, km 163.5 , 34012 Trieste , Italy .
- Faculty of Mathematics and Physics , University of Ljubljana , Jadranska 19 , Ljubljana , Slovenia
| | - Michael S Inkpen
- Department of Applied Physics and Applied Mathematics , Columbia University , New York , New York 10027 , USA .
| | | | - Dean Cvetko
- CNR-IOM Laboratorio Nazionale TASC , Basovizza SS-14, km 163.5 , 34012 Trieste , Italy .
- Faculty of Mathematics and Physics , University of Ljubljana , Jadranska 19 , Ljubljana , Slovenia
- J. Stefan Institute , Jamova 39 , Ljubljana , SI-1000 , Slovenia
| | - Mark S Hybertsen
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York , USA
| | - Alberto Morgante
- CNR-IOM Laboratorio Nazionale TASC , Basovizza SS-14, km 163.5 , 34012 Trieste , Italy .
- Department of Physics , University of Trieste , via A. Valerio 2 , 34127 , Trieste , Italy
| | - Xavier Roy
- Department of Chemistry , Columbia University , New York , New York 10027 , USA .
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics , Columbia University , New York , New York 10027 , USA .
- Department of Chemistry , Columbia University , New York , New York 10027 , USA .
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22
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Börner MC, Neugebauer J. Optimizing bidentate N-heterocyclic carbene ligands for the modification of late transition metal surfaces – new insights through theory. Phys Chem Chem Phys 2019; 21:24926-24934. [DOI: 10.1039/c9cp03840j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We identify key factors determining the adsorption behaviour of bidentate NHCs on noble metal surfaces.
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Affiliation(s)
- Melanie C. Börner
- Theoretische Organische Chemie
- Organisch-Chemisches Institut and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Johannes Neugebauer
- Theoretische Organische Chemie
- Organisch-Chemisches Institut and Center for Multiscale Theory and Computation
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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23
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An Y, Yu J, Han Y. Recent Advances in the Chemistry of
N
‐Heterocyclic‐Carbene‐Functionalized Metal‐Nanoparticles and Their Applications. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800450] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
| | - Jian‐Gang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- College of Chemical and Material Engineering, Quzhou University Quzhou, Zhejiang 324000 China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
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24
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25
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Tegeder P, Freitag M, Chepiga KM, Muratsugu S, Möller N, Lamping S, Tada M, Glorius F, Ravoo BJ. N‐Heterocyclic Carbene‐Modified Au–Pd Alloy Nanoparticles and Their Application as Biomimetic and Heterogeneous Catalysts. Chemistry 2018; 24:18682-18688. [DOI: 10.1002/chem.201803274] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Patricia Tegeder
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Matthias Freitag
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Kathryn M. Chepiga
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Satoshi Muratsugu
- Nagoya UniversityDepartment of Chemistry, Graduate School of Science Furo-cho, Chikusa Nagoya Aichi 464-8602 Japan
| | - Nadja Möller
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Sebastian Lamping
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Mizuki Tada
- Nagoya UniversityDepartment of Chemistry, Graduate School of Science Furo-cho, Chikusa Nagoya Aichi 464-8602 Japan
- Research Center for Materials Science (RCMS) and Integrated Research, Consortium on Chemical Sciences (IRCCS)Nagoya University Furo-cho, Chikusa Nagoya Aichi 464-8602 Japan
| | - Frank Glorius
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
| | - Bart Jan Ravoo
- Westfälische Universität MünsterOrganisch-Chemisches Institut Corrensstrasse 40 48149 Münster Germany
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26
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Nguyen DT, Freitag M, Körsgen M, Lamping S, Rühling A, Schäfer AH, Siekman MH, Arlinghaus HF, van der Wiel WG, Glorius F, Ravoo BJ. Versatile Micropatterns of N-Heterocyclic Carbenes on Gold Surfaces: Increased Thermal and Pattern Stability with Enhanced Conductivity. Angew Chem Int Ed Engl 2018; 57:11465-11469. [DOI: 10.1002/anie.201807197] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 06/22/2018] [Indexed: 11/07/2022]
Affiliation(s)
- D. Thao Nguyen
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Matthias Freitag
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Martin Körsgen
- Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Wilhelm-Klemm-Strasse 10 48149 Münster Germany
| | - Sebastian Lamping
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Andreas Rühling
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | | | - Martin H. Siekman
- NanoElectronics Group; MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Heinrich F. Arlinghaus
- Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Wilhelm-Klemm-Strasse 10 48149 Münster Germany
| | - Wilfred G. van der Wiel
- NanoElectronics Group; MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede The Netherlands
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
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27
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Nguyen DT, Freitag M, Körsgen M, Lamping S, Rühling A, Schäfer AH, Siekman MH, Arlinghaus HF, van der Wiel WG, Glorius F, Ravoo BJ. Vielseitige Mikrostrukturen aus N-heterocyclischen Carbenen auf Goldoberflächen: Erhöhte thermische und Strukturstabilität mit erhöhter Leitfähigkeit. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807197] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D. Thao Nguyen
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Matthias Freitag
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Martin Körsgen
- Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Sebastian Lamping
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Andreas Rühling
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | | | - Martin H. Siekman
- NanoElectronics Group; MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede Niederlande
| | - Heinrich F. Arlinghaus
- Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Wilhelm-Klemm-Straße 10 48149 Münster Deutschland
| | - Wilfred G. van der Wiel
- NanoElectronics Group; MESA Institute for Nanotechnology; University of Twente; P.O. Box 217 7500 AE Enschede Niederlande
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Bart Jan Ravoo
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
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28
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Chen T, Xu Z. Immobilization of Small‐Molecule Ligands Containing Secondary or Tertiary Amine Groups onto TiO
2
‐Supported Ru Catalysts Driven by the Hydrophobic Effect. ChemistrySelect 2018. [DOI: 10.1002/slct.201800989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tianyou Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMOE Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science and EngineeringHubei University Wuhan 430062 China
| | - Zushun Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical MaterialsMOE Key Laboratory for the Green Preparation and Application of Functional MaterialsSchool of Materials Science and EngineeringHubei University Wuhan 430062 China
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29
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Bridonneau N, Hippolyte L, Mercier D, Portehault D, Desage-El Murr M, Marcus P, Fensterbank L, Chanéac C, Ribot F. N-Heterocyclic carbene-stabilized gold nanoparticles with tunable sizes. Dalton Trans 2018; 47:6850-6859. [PMID: 29725678 DOI: 10.1039/c8dt00416a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and straightforward synthesis of N-heterocyclic carbene (NHC)-protected gold nanoparticles is derived from (benz)imidazolium-AuX4 complexes and NaBH4 only. The proposed method allows size tuning, from 3 to 6 nm, by adding (benz)imidazolium bromide. Changing the reducing agent to tBuNH2BH3 shifts the size range to ca. 6-12 nm. A one pot protocol is also reported from AuCl, (benz)imidazolium bromides and NaBH4, thereby providing an even more straightforward way of producing NHC-capped gold nanoparticles. In addition, X-ray photoelectron spectroscopy (XPS) is used to unambiguously evidence, on the nanoparticles, the covalent bond formed between the NHC and the surface gold atoms.
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Affiliation(s)
- N Bridonneau
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, F-75005 Paris, France.
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30
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Ushakova EV, Cherevkov SA, Litvin AP, Parfenov PS, Kasatkin IA, Fedorov AV, Gun'ko YK, Baranov AV. 3D superstructures with an orthorhombic lattice assembled by colloidal PbS quantum dots. NANOSCALE 2018; 10:8313-8319. [PMID: 29687825 DOI: 10.1039/c8nr01163j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a new type of metamaterial comprising a highly ordered 3D network of 3-7 nm lead sulfide quantum dots self-assembled in an organic matrix formed by amphiphilic ligands (oleic acid molecules). The obtained 3D superstructures possess an orthorhombic lattice with the distance between the nanocrystals as large as 10-40 nm. Analysis of self-assembly and destruction of the superstructures in time performed by a SAXS technique shows that their morphology depends on the quantity of amphiphilic ligands and width of the quantum dot size and its distribution. Formation of the superstructures is discussed in terms of a model describing the lyotropic crystal formation by micelles from three-phase mixtures. The results show that the organic molecules possessing surfactant properties and capable of forming micelles with nanoparticles as a micelle core can be utilized as building blocks for the creation of novel metamaterials based on a highly ordered 3D network of semiconductors, metals or magnetic nanoparticles.
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31
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Ye R, Zhukhovitskiy AV, Kazantsev RV, Fakra SC, Wickemeyer BB, Toste FD, Somorjai GA. Supported Au Nanoparticles with N-Heterocyclic Carbene Ligands as Active and Stable Heterogeneous Catalysts for Lactonization. J Am Chem Soc 2018; 140:4144-4149. [PMID: 29506380 DOI: 10.1021/jacs.8b01017] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Attachment of N-heterocyclic carbenes (NHCs) on the surface of metal nanoparticle (NP) catalysts permits fine-tuning of catalytic activity and product selectivity. Yet, NHC-coated Au NPs have been seldom used in catalysis beyond hydrogenation chemistry. One challenge in this field has been to develop a platform that permits arbitrary ligand modification without having to compromise NP stability toward aggregation or leaching. Herein, we exploit the strategy of supported dendrimer-encapsulated metal clusters (DEMCs) to achieve aggregation-stable yet active heterogeneous Au NP catalysts with NHC ligands. Dendrimers function as aggregation-inhibitors during the NP synthesis, and NHCs, well-known for their strong attachment to the gold surface, provide a handle to modify the stereochemistry, stereoelectronics, and chemical functionality of the NP surface. Indeed, compared to "ligandless" Au NPs which are virtually inactive below 80 °C, the NHC-ligated Au NP catalysts enable a model lactonization reaction to proceed at 20 °C on the same time scale (hours). Based on Eyring analysis, proto-deauration is the turnover-limiting step accelerated by the NHC ligands. Furthermore, the use of chiral NHCs led to asymmetric induction (up to 16% enantiomeric excess) in the lactonization transformations, which demonstrates the potential of supported DEMCs with ancillary ligands in enantioselective catalysis.
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32
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2016. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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33
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Klauke K, Gruber I, Knedel TO, Schmolke L, Barthel J, Breitzke H, Buntkowsky G, Janiak C. Silver, Gold, Palladium, and Platinum N-heterocyclic Carbene Complexes Containing a Selenoether-Functionalized Imidazol-2-ylidene Moiety. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00678] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Karsten Klauke
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Irina Gruber
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Tim-Oliver Knedel
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Laura Schmolke
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
| | - Juri Barthel
- Gemeinschaftslabor für Elektronenmikroskopie RWTH-Aachen, Ernst-Ruska-Centrum für Mikroskopie und Spektroskopie mit
Elektronen, D-52425 Jülich, Germany
| | - Hergen Breitzke
- Eduard-Zintl-Institut
für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, D-64287 Darmstadt, Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institut
für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, D-64287 Darmstadt, Germany
| | - Christoph Janiak
- Institut
für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany
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34
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Zeng Y, Zhang T, Narouz MR, Crudden CM, McBreen PH. Generation and conversion of an N-heterocyclic carbene on Pt(111). Chem Commun (Camb) 2018; 54:12527-12530. [DOI: 10.1039/c8cc06894a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conversion of the surface NHC to another surface carbene through isopropyl C–H bond activation ca. 400 K.
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Affiliation(s)
- Yang Zeng
- Department of Chemistry, Laval University
- Québec
- Canada
| | - Tianchi Zhang
- Department of Chemistry, Laval University
- Québec
- Canada
| | - Mina R. Narouz
- Department of Chemistry, Queen's University
- Kingston
- Canada
| | - Cathleen M. Crudden
- Department of Chemistry, Queen's University
- Kingston
- Canada
- Institute of Transformative Bio-Molecules, ITbM-WPI, Nagoya University
- Nagoya
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35
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Baquero EA, Tricard S, Coppel Y, Flores JC, Chaudret B, de Jesús E. Water-soluble platinum nanoparticles stabilized by sulfonated N-heterocyclic carbenes: influence of the synthetic approach. Dalton Trans 2018; 47:4093-4104. [DOI: 10.1039/c8dt00240a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
On the surface: Pt nanoparticles with NHC ligands at the surface have been prepared in water using different organometallic approaches.
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Affiliation(s)
- Edwin A. Baquero
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
| | - Simon Tricard
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- 31077 Toulouse
- France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination
- CNRS
- Université de Toulouse
- 31077 Toulouse
- France
| | - Juan C. Flores
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- 31077 Toulouse
- France
| | - Ernesto de Jesús
- Departamento de Química Orgánica y Química Inorgánica
- Instituto de Investigación Química “Andrés M. del Río” (IQAR)
- Universidad de Alcalá
- Campus Universitario
- Madrid
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36
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Rakers L, Martínez-Prieto LM, López-Vinasco AM, Philippot K, van Leeuwen PWNM, Chaudret B, Glorius F. Ruthenium nanoparticles ligated by cholesterol-derived NHCs and their application in the hydrogenation of arenes. Chem Commun (Camb) 2018; 54:7070-7073. [DOI: 10.1039/c8cc02833h] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we present ruthenium nanoparticles (Ru-NPs) stabilized with two rigid NHC ligands derived from cholesterol.
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Affiliation(s)
- Lena Rakers
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Luis M. Martínez-Prieto
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Angela M. López-Vinasco
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | | | - Piet W. N. M. van Leeuwen
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Bruno Chaudret
- LPCNO
- Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences Appliquées
- F-31077 Toulouse
| | - Frank Glorius
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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37
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Narouz MR, Li CH, Nazemi A, Crudden CM. Amphiphilic N-Heterocyclic Carbene-Stabilized Gold Nanoparticles and Their Self-Assembly in Polar Solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14211-14219. [PMID: 29148789 DOI: 10.1021/acs.langmuir.7b02248] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Soft matter-directed self-assembly of amphiphilic inorganic nanoparticles (NPs) has recently emerged as a promising approach to access NP ensembles with superior collective properties. While thiol-terminated molecules are primarily employed to tether the amphiphilic ligand to the metal, concerns remain regarding the stabilities of the resulting NPs and their corresponding aggregates. As an alternative, we report amphiphilic N-heterocyclic carbene (NHC)-functionalized gold nanoparticles (AuNPs). To accomplish this, an amphiphilic NHC-AuI complex based on an asymmetric triethylene glycol-/dodecyl-functionalized benzimidazole was first synthesized and used to prepare the corresponding stable amphiphilic NHC-decorated AuNPs. The resulting NPs were comprehensively characterized using both solution- and solid-state-based techniques such as proton nuclear magnetic resonance spectroscopy, dynamic light scattering, transmission electron microscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy. By optimizing the self-assembly behavior of these amphiphilic AuNPs in deionized water, ethanol, and their mixtures, we were able to fine-tune the plasmonic properties of the AuNPs in the wide range of 525-640 nm. Furthermore, when treated with thiols, the ensembles showed greater stability compared to their parent discrete AuNP counterparts at room temperature.
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Affiliation(s)
- Mina R Narouz
- Department of Chemistry, Queen's University , 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Chien-Hung Li
- Department of Chemistry, Queen's University , 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Ali Nazemi
- Department of Chemistry, Queen's University , 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Cathleen M Crudden
- Department of Chemistry, Queen's University , 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University , Chikusa, Nagoya 464-8602, Japan
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38
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Li Z, Munro K, Ebralize II, Narouz MR, Padmos JD, Hao H, Crudden CM, Horton JH. N-Heterocyclic Carbene Self-Assembled Monolayers on Gold as Surface Plasmon Resonance Biosensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13936-13944. [PMID: 29141140 DOI: 10.1021/acs.langmuir.7b03280] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surface plasmon resonance (SPR)-based biosensing is a powerful tool to study the recognition processes between biomolecules in real-time without need for labels. The use of thiol chemistry is a critical component in surface functionalization of various SPR biosensor surfaces on gold. However, its use is hampered by the high propensity for oxidation of the gold-thiol linkage even in ambient atmosphere, resulting in a short lifetime of SPR sensor chips unless strict precautions are taken. Herein, we describe an approach to overcome this limitation by employing highly robust self-assembled monolayers (SAMs) of alkylated N-heterocyclic carbenes (NHCs) on gold. An alkylated NHC sensor surface was developed and its biosensing capabilities were compared to a commercial thiol-based analogue-a hydrophobic association (HPA) chip-in terms of its ability to act as a reliable platform for biospecific interaction analysis under a wide range of conditions. The NHC-based SPR sensor outperforms related thiol-based sesnsors in several aspects, including lower nonspecific binding capacity, better chemical stability, higher reproducibility, shorter equilibration time, and longer life span. We also demonstrate that the NHC-based sensor can be used for rapid and efficient formation of a hybrid lipid bilayer for use in membrane interaction studies. Overall, this work identifies the great promise in designing NHC-based surfaces as a new technology platform for SPR-based biosensing.
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Affiliation(s)
- Zhijun Li
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
| | - Kim Munro
- Protein Function Discovery Facility, Queen's University , Kingston, Ontario K7L 3N6, Canada
| | - Iraklli I Ebralize
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
| | - Mina R Narouz
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
| | - J Daniel Padmos
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
| | - Hongxia Hao
- Collaborative Innovation Center of Judicial Civilization and Key Laboratory of Evidence Science, China University of Political Science and Law Beijing, 100088, China
| | - Cathleen M Crudden
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
- Institute for Transformative Bio-Molecules (ITbM-WPI), Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | - J Hugh Horton
- Department of Chemistry, Queen's University , Kingston, Ontario K7L 3N6, Canada
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39
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Li Z, Narouz MR, Munro K, Hao B, Crudden CM, Horton JH, Hao H. Carboxymethylated Dextran-Modified N-Heterocyclic Carbene Self-Assembled Monolayers on Gold for Use in Surface Plasmon Resonance Biosensing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39223-39234. [PMID: 29048150 DOI: 10.1021/acsami.7b13114] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Surface chemistry is a key enabler for various biosensing applications. Biosensors based on surface plasmon resonance routinely employ thiol-based chemistry for the linker layer between gold-coated support surfaces and functional biosensor surfaces. However, there is a growing awareness that such sensor surfaces are prone to oxidation/degradation problems in the presence of oxygen, and previous efforts to improve the stability have shown limited advancements. As an alternative, recent studies employing N-heterocyclic carbene (NHC) self-assembled monolayers (SAMs) deposited on gold have shown significant promise in this area. Here, we describe a sensor surface employing an NHC SAM to couple a modified carboxymethylated dextran onto a gold surface. Such a dextran matrix is also used for affinity chromatography, and it is the most commonly employed matrix for commercial biosensor surfaces today. The performance reliability of the dextran-modified NHC chip to act as an alternative biosensing platform is compared with that of a thiol-based commercial chip in the proof-of-concept tests. The resultant NHC sensor surface shows a higher thermal stability compared to thiol analogues. Moreover, the plasma protein/drug and antibody/antigen interactions were validated on the NHC-based dextran chip and showed similar performance as compared to the thiol-based commercial chip. Ultimately, this study shows the strong potential applicability of chemical modifications to gold surfaces using NHC ligands for biosensing applications.
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Affiliation(s)
- Zhijun Li
- Collaborative Innovation Center of Judicial Civilization and Key Laboratory of Evidence Science, China University of Political Science and Law , Beijing 100088, China
| | | | | | - Bin Hao
- Collaborative Innovation Center of Judicial Civilization and Key Laboratory of Evidence Science, China University of Political Science and Law , Beijing 100088, China
| | - Cathleen M Crudden
- Institute for Transformative Bio-Molecules (ITbM-WPI), Nagoya University , Chikusa, Nagoya 464-8602, Japan
| | | | - Hongxia Hao
- Collaborative Innovation Center of Judicial Civilization and Key Laboratory of Evidence Science, China University of Political Science and Law , Beijing 100088, China
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40
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Wegner S, Janiak C. Metal Nanoparticles in Ionic Liquids. Top Curr Chem (Cham) 2017; 375:65. [PMID: 28589266 DOI: 10.1007/s41061-017-0148-1] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
Abstract
During the last years ionic liquids (ILs) were increasingly used and investigated as reaction media, hydrogen sources, catalysts, templating agents and stabilizers for the synthesis of (monometallic and bimetallic) metal nanoparticles (M-NPs). Especially ILs with 1,3-dialkyl-imidazolium cations featured prominently in the formation and stabilization of M-NPs. This chapter summarizes studies which focused on the interdependencies of the IL with the metal nanoparticle and tried to elucidate, for example, influences of the IL-cation, -anion and alkyl chain length. Qualitatively, the size of M-NPs was found to increase with the size of the IL-anion. The influence of the size of imidazolium-cation is less clear. The M-NP size was both found to increase and to decrease with increasing chain lengths of the 1,3-dialkyl-imidazolium cation. It is evident from such reports on cation and anion effects of ILs that the interaction between an IL and a (growing) metal nanoparticle is far from understood. Factors like IL-viscosity, hydrogen-bonding capability and the relative ratio of polar and non-polar domains of ILs may also influence the stability of nanoparticles in ionic liquids and an improved understanding of the IL-nanoparticle interaction would be needed for a more rational design of nanomaterials in ILs. Furthermore, thiol-, ether-, carboxylic acid-, amino- and hydroxyl-functionalized ILs add to the complexity by acting also as coordinating capping ligands. In addition imidazolium cations are precursors to N-heterocyclic carbenes, NHCs which form from imidazolium-based ionic liquids by in situ deprotonation at the acidic C2-H ring position as intermediate species during the nanoparticle seeding and growth process or as surface coordinating ligand for the stabilization of the metal nanoparticle.
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Affiliation(s)
- Susann Wegner
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine Universität Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany.
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41
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Salorinne K, Man RWY, Li CH, Taki M, Nambo M, Crudden CM. Water-Soluble N-Heterocyclic Carbene-Protected Gold Nanoparticles: Size-Controlled Synthesis, Stability, and Optical Properties. Angew Chem Int Ed Engl 2017; 56:6198-6202. [PMID: 28407403 DOI: 10.1002/anie.201701605] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 01/16/2023]
Abstract
NHC-AuI complexes were used to prepare stable, water-soluble, NHC-protected gold nanoparticles. The water-soluble, charged nature of the nanoparticles permitted analysis by polyacrylamide gel electrophoresis (PAGE), which showed that the nanoparticles were highly monodisperse, with tunable core diameters between 2.0 and 3.3 nm depending on the synthesis conditions. Temporal, thermal, and chemical stability of the nanoparticles were determined to be high. Treatment with thiols caused etching of the particles after 24 h; however larger plasmonic particles showed greater resistance to thiol treatment. These water-soluble, bio-compatible nanoparticles are promising candidates for use in photoacoustic imaging, with even the smallest nanoparticles giving reliable photoacoustic signals.
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Affiliation(s)
- Kirsi Salorinne
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Renee W Y Man
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Chien-Hung Li
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario, Canada
| | - Masayasu Taki
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Cathleen M Crudden
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario, Canada
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42
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Salorinne K, Man RWY, Li CH, Taki M, Nambo M, Crudden CM. Water-Soluble N-Heterocyclic Carbene-Protected Gold Nanoparticles: Size-Controlled Synthesis, Stability, and Optical Properties. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701605] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Kirsi Salorinne
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Furo, Chikusa Nagoya 464-8602 Japan
| | - Renee W. Y. Man
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Furo, Chikusa Nagoya 464-8602 Japan
| | - Chien-Hung Li
- Department of Chemistry; Queen's University; Chernoff Hall Kingston Ontario Canada
| | - Masayasu Taki
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Furo, Chikusa Nagoya 464-8602 Japan
| | - Masakazu Nambo
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Furo, Chikusa Nagoya 464-8602 Japan
| | - Cathleen M. Crudden
- Institute of Transformative Bio-Molecules (WPI-ITbM); Nagoya University; Furo, Chikusa Nagoya 464-8602 Japan
- Department of Chemistry; Queen's University; Chernoff Hall Kingston Ontario Canada
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43
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Chang K, Chen JG, Lu Q, Cheng MJ. Quantum Mechanical Study of N-Heterocyclic Carbene Adsorption on Au Surfaces. J Phys Chem A 2017; 121:2674-2682. [DOI: 10.1021/acs.jpca.7b01153] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kuan Chang
- Department
of Chemical Engineering, Tsinghua University, Beijing, China
| | - Jingguang G. Chen
- Department
of Chemical Engineering, Tsinghua University, Beijing, China
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Qi Lu
- Department
of Chemical Engineering, Tsinghua University, Beijing, China
| | - Mu-Jeng Cheng
- Department
of Chemistry, National Cheng Kung University, Tainan, Taiwan
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44
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Engel S, Fritz EC, Ravoo BJ. New trends in the functionalization of metallic gold: from organosulfur ligands to N-heterocyclic carbenes. Chem Soc Rev 2017; 46:2057-2075. [DOI: 10.1039/c7cs00023e] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Gold is a key metal in nanotechnology but ligands are required for surface stabilization and functionalization. This tutorial review highlights the recent progress from organosulfur to N-heterocyclic carbene surface ligands for gold.
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Affiliation(s)
- Sabrina Engel
- Organic Chemistry Institute and Center for Soft Nanoscience
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Eva-Corinna Fritz
- Organic Chemistry Institute and Center for Soft Nanoscience
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute and Center for Soft Nanoscience
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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45
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Young AJ, Serpell CJ, Chin JM, Reithofer MR. Optically active histidin-2-ylidene stabilised gold nanoparticles. Chem Commun (Camb) 2017; 53:12426-12429. [DOI: 10.1039/c7cc07602a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The synthesis of histidine-derived NHC-stabilised chiroptical gold nanoparticles.
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Affiliation(s)
- Adam J. Young
- Gray Centre for Advanced Materials
- School of Mathematics and Physical Sciences
- University of Hull
- Hull
- UK
| | | | - Jia Min Chin
- Gray Centre for Advanced Materials
- School of Mathematics and Physical Sciences
- University of Hull
- Hull
- UK
| | - Michael R. Reithofer
- Gray Centre for Advanced Materials
- School of Mathematics and Physical Sciences
- University of Hull
- Hull
- UK
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46
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Ahmed S, Ahmad M, Swami BL, Ikram S. A review on plants extract mediated synthesis of silver nanoparticles for antimicrobial applications: A green expertise. J Adv Res 2016. [PMID: 26843966 DOI: 10.1016/j.cogsc.2018.06.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
Metallic nanoparticles are being utilized in every phase of science along with engineering including medical fields and are still charming the scientists to explore new dimensions for their respective worth which is generally attributed to their corresponding small sizes. The up-and-coming researches have proven their antimicrobial significance. Among several noble metal nanoparticles, silver nanoparticles have attained a special focus. Conventionally silver nanoparticles are synthesized by chemical method using chemicals as reducing agents which later on become accountable for various biological risks due to their general toxicity; engendering the serious concern to develop environment friendly processes. Thus, to solve the objective; biological approaches are coming up to fill the void; for instance green syntheses using biological molecules derived from plant sources in the form of extracts exhibiting superiority over chemical and/or biological methods. These plant based biological molecules undergo highly controlled assembly for making them suitable for the metal nanoparticle syntheses. The present review explores the huge plant diversity to be utilized towards rapid and single step protocol preparatory method with green principles over the conventional ones and describes the antimicrobial activities of silver nanoparticles.
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Affiliation(s)
- Shakeel Ahmed
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Mudasir Ahmad
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Babu Lal Swami
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Saiqa Ikram
- Department of Chemistry, Faculty of Natural Sciences, Jamia Millia Islamia, New Delhi 110025, India
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