101
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Wei J, Rodríguez-Kessler PL, Halet JF, Kahlal S, Saillard JY, Muñoz-Castro A. On Heteronuclear Isoelectronic Alternatives to [Au13(dppe)5Cl2]3+: Electronic and Optical Properties of the 18-Electron Os@[Au12(dppe)5Cl2] Cluster from Relativistic Density Functional Theory Computations. Inorg Chem 2021; 60:8173-8180. [DOI: 10.1021/acs.inorgchem.1c00799] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jianyu Wei
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR) − UMR 6226, Rennes F-35000, France
| | - Peter L. Rodríguez-Kessler
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingenieria, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, Santiago 8320000, Chile
| | - Jean-François Halet
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR) − UMR 6226, Rennes F-35000, France
- CNRS-Saint Gobain-NIMS, IRL 3629, Laboratory for Innovative Key Materials and Structures (LINK), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan
| | - Samia Kahlal
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR) − UMR 6226, Rennes F-35000, France
| | - Jean-Yves Saillard
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes (ISCR) − UMR 6226, Rennes F-35000, France
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingenieria, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, Santiago 8320000, Chile
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102
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Lei Z, Li JJ, Nan ZA, Jiang ZG, Wang QM. Cluster From Cluster: A Quantitative Approach to Magic Gold Nanoclusters [Au 25 (SR) 18 ] . Angew Chem Int Ed Engl 2021; 60:14415-14419. [PMID: 33829603 DOI: 10.1002/anie.202103290] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Indexed: 12/19/2022]
Abstract
High-yield and large-scale synthesis are highly demanded for the studies of gold nanoclusters. We developed a "cluster from cluster" approach to assemble gold nanoclusters with preformed atomically precise Au13 precursors. This facile approach has proved to be very effective in the synthesis of the well-known magic cluster [Au25 (SR)18 ]- , which could prepare the target cluster in high yield (overall yield up to ≈100 %) at large scale (gram-scale based on gold). This method can be applied in the synthesis of 10 Au25 clusters with different R groups. This work presents an important approach that may be extended to high-yield and large-scale synthesis of other metal nanoclusters.
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Affiliation(s)
- Zhen Lei
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
| | - Jiao-Jiao Li
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
| | - Zi-Ang Nan
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhan-Guo Jiang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Material, College of Chemistry and Life Sciences, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, P. R. China
| | - Quan-Ming Wang
- Department of Chemistry, Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
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103
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Pandeya P, Senanayake RD, Aikens CM. Nonradiative relaxation dynamics in the [Au 25-nAg n(SH) 18] -1 (n = 1, 12, 25) thiolate-protected nanoclusters. J Chem Phys 2021; 154:184303. [PMID: 34241036 DOI: 10.1063/5.0045590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Evaluation of the electron-nuclear dynamics and relaxation mechanisms of gold and silver nanoclusters and their alloys is important for future photocatalytic, light harvesting, and photoluminescence applications of these systems. In this work, the effect of silver doping on the nonradiative excited state relaxation dynamics of the atomically precise thiolate-protected gold nanocluster [Au25-nAgn(SH)18]-1 (n = 1, 12, 25) is studied theoretically. Time-dependent density functional theory is used to study excited states lying in the energy range 0.0-2.5 eV. The fewest switches surface hopping method with decoherence correction was used to investigate the dynamics of these states. The HOMO-LUMO gap increases significantly upon doping of 12 silver atoms but decreases for the pure silver nanocluster. Doped clusters show a different response for ground state population increase lifetimes and excited state population decay times in comparison to the undoped system. The ground state recovery times of the S1-S6 states in the first excited peak were found to be longer for [Au13Ag12(SH)18]-1 than the corresponding recovery times of other studied nanoclusters, suggesting that this partially doped nanocluster is best for preserving electrons in an excited state. The decay time constants were in the range of 2.0-20 ps for the six lowest energy excited states. Among the higher excited states, S7 has the slowest decay time constant although it occurs more quickly than S1 decay. Overall, these clusters follow common decay time constant trends and relaxation mechanisms due to the similarities in their electronic structures.
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Affiliation(s)
- Pratima Pandeya
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
| | | | - Christine M Aikens
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, USA
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104
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The Au 25(pMBA) 17Diglyme Cluster. Molecules 2021; 26:molecules26092562. [PMID: 33924805 PMCID: PMC8124888 DOI: 10.3390/molecules26092562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 11/25/2022] Open
Abstract
A modification of Au25(pMBA)18 that incorporates one diglyme ligand as a direct synthetic product is reported. Notably the expected statistical production of clusters containing other ligand stoichiometries is not observed. This Au25(pMBA)17diglyme product is characterized by electrospray ionization mass spectrometry (ESI-MS) and optical spectroscopy. Thiolate for thiolate ligand exchange proceeds on this cluster, whereas thiolate for diglyme ligand exchange does not.
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105
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Mikami K, Hui S, Kubo K, Kume S, Mizuta T. The [Ag 25Cu 4H 8Br 6(CCPh) 12(PPh 3) 12] 3+ : Ag 13H 8 silver hydride core protected by [CuAg 3(CCPh) 3(PPh 3) 3] + motifs. Dalton Trans 2021; 50:5659-5665. [PMID: 33908964 DOI: 10.1039/d1dt00294e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper alkynyl complexes [CuAg3(C[triple bond, length as m-dash]CAr)3(PPh3)3]+ (Ar = Ph, p-C6H4Me), in which three Ag(PPh3) units are bound among three C[triple bond, length as m-dash]CAr arms of trigonal-planar [Cu(C[triple bond, length as m-dash]CAr)3]2-, were selected as a protecting unit to cover the metal core of an atomically precise core-shell-type cluster. First, the formation of the protecting unit through the reaction of Cu(NCMe)4(PF6) with Ag(C[triple bond, length as m-dash]CAr) and PPh3 in a 1 : 3 : 3 ratio was confirmed. The reaction gave dimeric [CuAg3(C[triple bond, length as m-dash]CAr)3(PPh3)3]22+, in which the two planar [CuAg3(C[triple bond, length as m-dash]CAr)3(PPh3)3]+ units were stacked. Next, core-shell-type clusters were synthesized by adding NaBH4 and Et4NX (X = Cl, Br) to a solution similar to that used to prepare the protecting unit. The trigonal-planar protecting units nicely formed core-shell-type Ag nanoclusters formulated as [Ag13H8X6{CuAg3(C[triple bond, length as m-dash]CAr)3(PPh3)3}4]3+ (X = Cl, Ar = p-C6H4Me; X = Br, Ar = p-C6H4Me; X = Br, Ar = Ph). Their crystal structures revealed that the four [CuAg3(C[triple bond, length as m-dash]CAr)3(PPh3)3]+ units are linked by six halogen ions to form a tetrahedral cage that accommodates a polyhydride-Ag cluster formulated as Ag13H85+. As a concrete proof of the existence of the polyhydride, deuterated analogs Ag13D85+ were synthesized and subsequently characterized by high-resolution electrospray-ionization mass spectrometry measurements.
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Affiliation(s)
- Kaiyu Mikami
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima 739-8526, Japan.
| | - Shen Hui
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima 739-8526, Japan.
| | - Kazuyuki Kubo
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima 739-8526, Japan.
| | - Shoko Kume
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima 739-8526, Japan.
| | - Tsutomu Mizuta
- Department of Chemistry, Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-hiroshima 739-8526, Japan.
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106
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Chen Y, Dong X, Zheng Y, Wang Y, Guo Z, Jiang H, Wang X. A novel turn-on fluorescent sensor for the sensitive detection of glutathione via gold nanocluster preparation based on controllable ligand-induced etching. Analyst 2021; 145:4265-4275. [PMID: 32463397 DOI: 10.1039/d0an00807a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this study, we report a facile one-pot chemical etching approach to simply and rapidly prepare gold nanoclusters capped with luminol (Lum-AuNCs) in an alkaline aqueous solution at room temperature. A series of characterization studies have been carried out to explore the morphology, the optical properties and chemical components of Lum-AuNCs. The average diameter of Lum-AuNCs is 1.8 ± 0.3 nm, exhibiting fluorescence near 510 nm upon excitation at 420 nm with a quantum yield of 14.29% and an average fluorescence lifetime of 9.47 ns. On the basis of the ligand-induced etching of glutathione (GSH) to the intermediate (luminol capped gold nanoparticles, abbreviated as Lum-AuNPs), a novel and simple method for the fluorescence determination of GSH has been established. The method displays a good linear response in the range of 0.05-300 μM toward GSH with a limit of detection of 35 nM. This detection strategy with high sensitivity and selectivity facilitates its practical application for the detection of GSH levels in cell extracts. The in vitro cell results illustrate that Lum-AuNCs have good cytocompatibility and can be used to readily differentiate normal cells and tumor cells.
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Affiliation(s)
- Yun Chen
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Xiawei Dong
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Youkun Zheng
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Yihan Wang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Zengchao Guo
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Hui Jiang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
| | - Xuemei Wang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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107
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Wang Y, Bürgi T. Ligand exchange reactions on thiolate-protected gold nanoclusters. NANOSCALE ADVANCES 2021; 3:2710-2727. [PMID: 34046556 PMCID: PMC8130898 DOI: 10.1039/d1na00178g] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/02/2021] [Indexed: 05/08/2023]
Abstract
As a versatile post-synthesis modification method, ligand exchange reaction exhibits great potential to extend the space of accessible nanoclusters. In this review, we summarized this process for thiolate-protected gold nanoclusters. In order to better understand this reaction we will first provide the necessary background on the synthesis and structure of various gold clusters, such as Au25(SR)18, Au38(SR)24, and Au102(SR)44. The previous investigations illustrated that ligand exchange is enabled by the chemical properties and flexible gold-sulfur interface of nanoclusters. It is generally believed that ligand exchange follows a SN2-like mechanism, which is supported both by experiments and calculations. More interesting, several studies show that ligand exchange takes place at preferred sites, i.e. thiolate groups -SR, on the ligand shell of nanoclusters. With the help of ligand exchange reactions many functionalities could be imparted to gold nanoclusters including the introduced of chirality to achiral nanoclusters, size transformation and phase transfer of nanoclusters, and the addition of fluorescence or biological labels. Ligand exchange was also used to amplify the enantiomeric excess of an intrinsically chiral cluster. Ligand exchange reaction accelerates the prosperity of the nanocluster field, and also extends the diversity of precise nanoclusters.
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Affiliation(s)
- Yanan Wang
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
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108
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Kang X, Wei X, Jin S, Wang S, Zhu M. Controlling the Crystallographic Packing Modes of Pt 1Ag 28 Nanoclusters: Effects on the Optical Properties and Nitrogen Adsorption-Desorption Performances. Inorg Chem 2021; 60:4198-4206. [PMID: 33103416 DOI: 10.1021/acs.inorgchem.0c02570] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein report the manipulation of the crystallographic packing modes of Pt1Ag28(S-Adm)18(PPh3)4 nanoclusters by altering counterions as different polyoxometalates (POMs). Specifically, the Cl- anion of the presynthesized Pt1Ag28 nanocluster was substituted by POM anions including [Mo6O19]2-, [W6O19]2-, or [PW12O40]3-. The crystal lattices of these Pt1Ag28 nanoclusters with diverse anions showed distinct packing modes and thus manifested remarkably distinguishable crystalline-state optical properties and nitrogen adsorption-desorption performances. Overall, the combination of intercluster control in this work and intracluster control reported previously (the control over metal-ligand within the nanocluster framework) accomplished a more comprehensive manipulation over the M29(SR)18(PR'3)4 nanocluster system, which enables us to further grasp the structure-property correlations at the atomic level.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xiao Wei
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Shan Jin
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China.,Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Shuxin Wang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
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109
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Shao C, Xiong S, Cao X, Zhang C, Luo T, Liu G. Dithiothreitol-capped red emitting copper nanoclusters as highly effective fluorescent nanoprobe for cobalt (II) ions sensing. Microchem J 2021. [DOI: 10.1016/j.microc.2021.105922] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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110
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Saraf M, Tavakkoli Yaraki M, Prateek, Tan YN, Gupta RK. Insights and Perspectives Regarding Nanostructured Fluorescent Materials toward Tackling COVID-19 and Future Pandemics. ACS APPLIED NANO MATERIALS 2021; 4:911-948. [PMID: 37556236 PMCID: PMC7885806 DOI: 10.1021/acsanm.0c02945] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/26/2021] [Indexed: 07/28/2023]
Abstract
The COVID-19 outbreak has exposed the world's preparation to fight against unknown/unexplored infectious and life-threatening pathogens. The unavailability of vaccines, slow or sometimes unreliable real-time virus/bacteria detection techniques, insufficient personal protective equipment (PPE), and a shortage of ventilators and many other transportation equipments have further raised serious concerns. Material research has been playing a pivotal role in developing antimicrobial agents for water treatment and photodynamic therapy, fast and ultrasensitive biosensors for virus/biomarkers detection, as well as for relevant biomedical and environmental applications. It has been noticed that these research efforts nowadays primarily focus on the nanomaterials-based platforms owing to their simplicity, reliability, and feasibility. In particular, nanostructured fluorescent materials have shown key potential due to their fascinating optical and unique properties at the nanoscale to combat against a COVID-19 kind of pandemic. Keeping these points in mind, this review attempts to give a perspective on the four key fluorescent materials of different families, including carbon dots, metal nanoclusters, aggregation-induced-emission luminogens, and MXenes, which possess great potential for the development of ultrasensitive biosensors and infective antimicrobial agents to fight against various infections/diseases. Particular emphasis has been given to the biomedical and environmental applications that are linked directly or indirectly to the efforts in combating COVID-19 pandemics. This review also aims to raise the awareness of researchers and scientists across the world to utilize such powerful materials in tackling similar pandemics in future.
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Affiliation(s)
- Mohit Saraf
- Department of Chemical Engineering,
Indian Institute of Technology Kanpur, Kanpur 208016, Uttar
Pradesh, India
| | - Mohammad Tavakkoli Yaraki
- Department of Chemical and Biomolecular Engineering,
National University of Singapore, 4 Engineering Drive 4,
117585, Singapore
- Research and Development Department,
Nanofy Technologies Pte. Ltd., 048580,
Singapore
| | - Prateek
- Department of Chemical Engineering,
Indian Institute of Technology Kanpur, Kanpur 208016, Uttar
Pradesh, India
| | - Yen Nee Tan
- Faculty of Science, Agriculture & Engineering,
Newcastle University, Newcastle upon Tyne NE1 7RU,
U.K.
- Newcastle Research & Innovation Institute,
Devan Nair Institute for Employment & Employability, 80
Jurong East Street 21, 609607, Singapore
| | - Raju Kumar Gupta
- Department of Chemical Engineering,
Indian Institute of Technology Kanpur, Kanpur 208016, Uttar
Pradesh, India
- Centre for Environmental Science and Engineering,
Indian Institute of Technology Kanpur, Kanpur 208016, Uttar
Pradesh, India
- Department of Sustanable Energy Engineering,
Indian Institute of Technology Kanpur, Kanpur 208016, Uttar
Pradesh, India
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111
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Gran ER, Bertorelle F, Fakhouri H, Antoine R, Perić Bakulić M, Sanader Maršić Ž, Bonačić-Koutecký V, Blain M, Antel J, Maysinger D. Size and ligand effects of gold nanoclusters in alteration of organellar state and translocation of transcription factors in human primary astrocytes. NANOSCALE 2021; 13:3173-3183. [PMID: 33527928 DOI: 10.1039/d0nr06401g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ultra-small gold nanoclusters (AuNCs) with designed sizes and ligands are gaining popularity for biomedical purposes and ultimately for human imaging and therapeutic applications. Human non-tumor brain cells, astrocytes, are of particular interest because they are abundant and play a role in functional regulation of neurons under physiological and pathological conditions. Human primary astrocytes were treated with AuNCs of varying sizes (Au10, Au15, Au18, Au25) and ligand composition (glutathione, polyethylene glycol, N-acetyl cysteine). Concentration and time-dependent studies showed no significant cell loss with AuNC concentrations <10 μM. AuNC treatment caused marked differential astrocytic responses at the organellar and transcription factor level. The effects were exacerbated under severe oxidative stress induced by menadione. Size-dependent effects were most remarkable with the smallest and largest AuNCs (10, 15 Au atoms versus 25 Au atoms) and might be related to the accessibility of biological targets toward the AuNC core, as demonstrated by QM/MM simulations. In summary, these findings suggest that AuNCs are not inert in primary human astrocytes, and that their sizes play a critical role in modulation of organellar and redox-responsive transcription factor homeostasis.
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Affiliation(s)
- Evan Rizzel Gran
- Department of Pharmacology & Therapeutics, McGill University, Montréal, QC H3G 1Y6, Canada.
| | - Franck Bertorelle
- Institut Lumière Matière UMR 5306, Université Claude Bernard Lyon 1, CNRS, Univ Lyon, F-69100 Villeurbanne, France.
| | - Hussein Fakhouri
- Institut Lumière Matière UMR 5306, Université Claude Bernard Lyon 1, CNRS, Univ Lyon, F-69100 Villeurbanne, France.
| | - Rodolphe Antoine
- Institut Lumière Matière UMR 5306, Université Claude Bernard Lyon 1, CNRS, Univ Lyon, F-69100 Villeurbanne, France.
| | - Martina Perić Bakulić
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia
| | - Željka Sanader Maršić
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia and Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Republic of Croatia
| | - Vlasta Bonačić-Koutecký
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia and Interdisciplinary Center for Advanced Science and Technology (ICAST) at University of Split, Meštrovićevo šetalište 45, 21000 Split, Croatia and Chemistry Department, Humboldt University of Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| | - Manon Blain
- Neuroimmunology Unit, Montreal Neurological Institute, McGill University, Montreal, QC H3A 2B4, Canada
| | - Jack Antel
- Neuroimmunology Unit, Montreal Neurological Institute, McGill University, Montreal, QC H3A 2B4, Canada
| | - Dusica Maysinger
- Department of Pharmacology & Therapeutics, McGill University, Montréal, QC H3G 1Y6, Canada.
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112
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McKay J, Cowan MJ, Morales-Rivera CA, Mpourmpakis G. Predicting ligand removal energetics in thiolate-protected nanoclusters from molecular complexes. NANOSCALE 2021; 13:2034-2043. [PMID: 33449990 DOI: 10.1039/d0nr07839e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thiolate-protected metal nanoclusters (TPNCs) have attracted great interest in the last few decades due to their high stability, atomically precise structure, and compelling physicochemical properties. Among their various applications, TPNCs exhibit excellent catalytic activity for numerous reactions; however, recent work revealed that these systems must undergo partial ligand removal in order to generate active sites. Despite the importance of ligand removal in both catalysis and stability of TPNCs, the role of ligands and metal type in the process is not well understood. Herein, we utilize Density Functional Theory to understand the energetic interplay between metal-sulfur and sulfur-ligand bond dissociation in metal-thiolate systems. We first probe 66 metal-thiolate molecular complexes across combinations of M = Ag, Au, and Cu with twenty-two different ligands (R). Our results reveal that the energetics to break the metal-sulfur and sulfur-ligand bonds are strongly correlated and can be connected across all complexes through metal atomic ionization potentials. We then extend our work to the experimentally relevant [M25(SR)18]- TPNC, revealing the same correlations at the nanocluster level. Importantly, we unify our work by introducing a simple methodology to predict TPNC ligand removal energetics solely from calculations performed on metal-ligand molecular complexes. Finally, a computational mechanistic study was performed to investigate the hydrogenation pathways for SCH3-based complexes. The energy barriers for these systems revealed, in addition to thermodynamics, that kinetics favor the break of S-R over the M-S bond in the case of the Au complex. Our computational results rationalize several experimental observations pertinent to ligand effects on TPNCs. Overall, our introduced model provides an accelerated path to predict TPNC ligand removal energies, thus aiding towards targeted design of TPNC catalysts.
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Affiliation(s)
- Julia McKay
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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113
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Kalenius E, Malola S, Matus MF, Kazan R, Bürgi T, Häkkinen H. Experimental Confirmation of a Topological Isomer of the Ubiquitous Au 25(SR) 18 Cluster in the Gas Phase. J Am Chem Soc 2021; 143:1273-1277. [PMID: 33444006 PMCID: PMC8023650 DOI: 10.1021/jacs.0c11509] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
High-resolution electrospray ionization
ion mobility mass spectrometry
has revealed a gas-phase isomer of the ubiquitous, extremely well-studied
Au25(SR)18 cluster both in anionic and cationic
form. The relative abundance of the isomeric structures can be controlled
by in-source activation. The measured collision cross section of the
new isomer agrees extremely well with a recent theoretical prediction
(MatusM. F.; et al. 2020, 56, 8087) corresponding to a Au25(SR)18– isomer that is energetically close and topologically connected to
the known ground-state structure via a simple rotation of the gold
core without breaking any Au–S bonds. The results imply that
the structural dynamics leading to isomerization of thiolate-protected
gold clusters may play an important role in their gas-phase reactions
and that isomerization could be controlled by external stimuli.
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Affiliation(s)
- Elina Kalenius
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Sami Malola
- Department of Physics, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - María Francisca Matus
- Department of Physics, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Rania Kazan
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Thomas Bürgi
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland
| | - Hannu Häkkinen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland.,Department of Physics, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
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114
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Ma X, Tang Y, Ma G, Qin L, Tang Z. Controllable synthesis and formation mechanism study of homoleptic alkynyl-protected Au nanoclusters: recent advances, grand challenges, and great opportunities. NANOSCALE 2021; 13:602-614. [PMID: 33410856 DOI: 10.1039/d0nr07499c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In the past decade, atomically precise coinage metal nanoclusters have been a subject of major interest in nanoscience and nanotechnology because of their determined compositions and well-defined molecular structures, which are beneficial for establishing structure-property relationships. Recently ligand engineering has been extended to alkynyl molecules. Homoleptic alkynyl-protected Au nanoclusters (Au NCs) have emerged as a hotspot of research interest, mainly due to their unique optical properties, molecular configuration, and catalytic functionalities, and more importantly, they are used as a counterpart object for fundamental study to compare with the well-established thiolate Au NCs. In this review, we first summarize the recently reported various controllable synthetic strategies for atomically precise homoleptic-alkynyl-protected Au NCs, with particular emphasis on the ligand exchange method, direct reduction of the precursor, one-pot synthesis, and the synchronous nucleation and passivation strategy. After that, we switch our focus to the formation mechanism and structure evolution process of homoleptic alkynyl-protected Au NCs, where Au144(PA)60 and Au36(PA)24 (PA = phenylacetylide) are given as examples, along with the prediction of the possible formation mechanism of some other cluster molecules. In the end of this review, the outlook and perspective of this rapidly developing field including grand challenges and great opportunities are discussed. This review can stimulate more research efforts towards developing new synthetic strategies to enrich the limited examples and unravel the formation/growth mechanism of homoleptic alkynyl-protected Au NCs.
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Affiliation(s)
- Xiaoshuang Ma
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China.
| | - Yun Tang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China.
| | - Guanyu Ma
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China.
| | - Lubing Qin
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China.
| | - Zhenghua Tang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, China. and Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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115
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Deepagan VG, Leiske MN, Fletcher NL, Rudd D, Tieu T, Kirkwood N, Thurecht KJ, Kempe K, Voelcker NH, Cifuentes-Rius A. Engineering Fluorescent Gold Nanoclusters Using Xanthate-Functionalized Hydrophilic Polymers: Toward Enhanced Monodispersity and Stability. NANO LETTERS 2021; 21:476-484. [PMID: 33350838 DOI: 10.1021/acs.nanolett.0c03930] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We introduce xanthate-functionalized poly(cyclic imino ethers)s (PCIEs), specifically poly(2-ethyl-2-oxazoline) and poly(2-ethyl-2-oxazine) given their stealth characteristics, as an attractive alternative to conventional thiol-based ligands for the synthesis of highly monodisperse and fluorescent gold nanoclusters (AuNCs). The xanthate in the PCIEs interacts with Au ions, acting as a well-controlled template for the direct formation of PCIE-AuNCs. This method yields red-emitting AuNCs with a narrow emission peak (λem = 645 nm), good quantum yield (4.3-4.8%), long fluorescence decay time (∼722-844 ns), and unprecedented product yield (>98%). The PCIE-AuNCs exhibit long-term colloidal stability, biocompatibility, and antifouling properties, enabling a prolonged blood circulation, lower nonspecific accumulation in major organs, and better renal clearance when compared with AuNCs without polymer coating. The advances made here in the synthesis of metal nanoclusters using xanthate-functionalized PCIEs could propel the production of highly monodisperse, biocompatible, and renally clearable nanoprobes in large-scale for different theranostic applications.
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Affiliation(s)
- Veerasikku Gopal Deepagan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Meike N Leiske
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Nicholas L Fletcher
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - David Rudd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
| | - Terence Tieu
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
| | - Nicholas Kirkwood
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Kristofer J Thurecht
- Centre for Advanced Imaging (CAI) and Australian Institute for Bioengineering and Nanotechnology (AIBN), ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, St. Lucia, Queensland 4072, Australia
| | - Kristian Kempe
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
| | - Nicolas H Voelcker
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Bayview Avenue, Clayton, Victoria 3168, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3168, Australia
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, 151 Wellington Road, Clayton, Victoria 3168, Australia
| | - Anna Cifuentes-Rius
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville Victoria 3052, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
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116
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Bonacchi S, Antonello S, Dainese T, Maran F. Atomically Precise Metal Nanoclusters: Novel Building Blocks for Hierarchical Structures. Chemistry 2021; 27:30-38. [PMID: 32794586 DOI: 10.1002/chem.202003155] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/03/2020] [Indexed: 11/08/2022]
Abstract
Atomically precise ligand-protected nanoclusters (NCs) constitute an important class of compounds that exhibit well-defined structures and, when sufficiently small, evident molecular properties. NCs provide versatile building blocks to fabricate hierarchical superstructures. The assembly of NCs indeed offers opportunities to devise new materials with given structures and able to carry out specific functions. In this Concept article, we highlight the possibilities offered by NCs in which the physicochemical properties are controlled by the introduction of foreign metal atoms and/or modification of the composition of the capping monolayer with functional ligands. Different approaches to assemble NCs into dimers and higher hierarchy structures and the corresponding changes in physicochemical properties are also described.
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Affiliation(s)
- Sara Bonacchi
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Sabrina Antonello
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Tiziano Dainese
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Flavio Maran
- Department of Chemistry, University of Padova, Via Marzolo 1, 35131, Padova, Italy.,Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, 06269, Connecticut, USA
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117
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Kawawaki T, Kataoka Y, Ozaki S, Kawachi M, Hirata M, Negishi Y. Creation of active water-splitting photocatalysts by controlling cocatalysts using atomically precise metal nanoclusters. Chem Commun (Camb) 2020; 57:417-440. [PMID: 33350403 DOI: 10.1039/d0cc06809h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
With global warming and the depletion of fossil resources, our fossil-fuel-dependent society is expected to shift to one that instead uses hydrogen (H2) as clean and renewable energy. Water-splitting photocatalysts can produce H2 from water using sunlight, which are almost infinite on the earth. However, further improvements are indispensable to enable their practical application. To improve the efficiency of the photocatalytic water-splitting reaction, in addition to improving the semiconductor photocatalyst, it is extremely effective to improve the cocatalysts (loaded metal nanoclusters, NCs) that enable the reaction to proceed on the photocatalysts. We have thus attempted to strictly control metal NCs on photocatalysts by introducing the precise-control techniques of metal NCs established in the metal NC field into research on water-splitting photocatalysts. Specifically, the cocatalysts on the photocatalysts were controlled by adsorbing atomically precise metal NCs on the photocatalysts and then removing the protective ligands by calcination. This work has led to several findings on the electronic/geometrical structures of the loaded metal NCs, the correlation between the types of loaded metal NCs and the water-splitting activity, and the methods for producing high water-splitting activity. We expect that the obtained knowledge will lead to clear design guidelines for the creation of practical water-splitting photocatalysts and thereby contribute to the construction of a hydrogen-energy society.
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Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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118
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Bertorelle F, Basu S, Fakhouri H, Perić Bakulić M, Mignon P, Russier-Antoine I, Brevet PF, Thomas S, Kalarikkal N, Antoine R. Covalent anchoring of atomically precise glutathione-protected gold nanoclusters on graphene oxide nanosheets. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abbe31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
This paper describes the development of a novel method of producing nanocomposites consisting of gold nanoclusters anchored on graphene oxide nanosheets in a cost-effective and reproducible manner. The novelty of the technique hinges on the covalent functionalization of atomically precise subnanometer gold clusters protected by glutathione (Au15SG13 and Au25SG18) on to graphene oxide (GO) nanosheets according to the 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride crosslinking method, using the existing carboxylic groups present both at the surfaces of the nanoclusters and the GO nanosheets. The atomic precision of glutathione-protected gold nanoclusters was evidenced by electrospray ionization mass spectrometry. The formed hybrid nanocomposites were characterized by TEM measurements and exhibit nonlinear optical properties characteristic of GO, in particular a strong second harmonic scattering response as well as a multi-photon excited fluorescence spectrum characterized by a broad band in the visible range between 350 and 700 nm. Atomically precise nanoclusters covalently linked to GO nanosheets are therefore promising for new applications in the areas of optoelectronics and photovoltaics.
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119
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Hwang GB, Wu G, Shin J, Panariello L, Sebastian V, Karu K, Allan E, Gavriilidis A, Parkin IP. Continuous Single-Phase Synthesis of [Au 25(Cys) 18] Nanoclusters and their Photobactericidal Enhancement. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49021-49029. [PMID: 33073567 DOI: 10.1021/acsami.0c07691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Thiolate-gold nanoclusters have various applications. However, most of the synthesis methods require prolonged synthesis times from several hours to days. In the present study, we report a rapid synthesis method for [Au25(Cys)18] nanoclusters and their application for photobactericidal enhancement. For [Au25(Cys)18] synthesis, we employed a tube-in-tube membrane reactor using CO as a reducing agent at elevated temperatures. This approach allows continuous generation of high-quality [Au25(Cys)18] within 3 min. Photobactericidal tests against Staphylococcus aureus showed that crystal violet-treated polymer did not have photobactericidal activity, but addition of [Au25(Cys)18] in the treated polymer demonstrated a potent photobactericidal activity at a low white light flux, resulting in >4.29 log reduction in viable bacteria numbers. Steady-state and time-resolved photoluminescence spectroscopies demonstrated that after light irradiation, photoexcited electrons in crystal violet flowed to [Au25(Cys)18] in the silicone, suggesting that redox reaction from [Au25(Cys)18] enhanced the photobactericidal activity. Stability tests revealed that leaching of crystal violet and [Au25(Cys)18] from the treated silicone was negligible and cyclic testing showed that the silicone maintained a strong photobactericidal activity after repeated use.
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Affiliation(s)
- Gi Byoung Hwang
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Gaowei Wu
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - Juhun Shin
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Luca Panariello
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - Victor Sebastian
- Nanoscience Institute of Aragon, Aragón Materials Science Institute, ICMA, CSIC and Chemical and Environmental Engineering Department, University of Zaragoza, 50018 Zaragoza, Spain
| | - Kersti Karu
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Elaine Allan
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Campus, University College London, Rowland Hill Street, London NW3 2PF, United Kingdom
| | - Asterios Gavriilidis
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - Ivan P Parkin
- Materials Chemistry Research Centre, Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
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120
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Kawawaki T, Imai Y, Suzuki D, Kato S, Kobayashi I, Suzuki T, Kaneko R, Hossain S, Negishi Y. Atomically Precise Alloy Nanoclusters. Chemistry 2020; 26:16150-16193. [DOI: 10.1002/chem.202001877] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Tokuhisa Kawawaki
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
- Research Institute for Science & Technology Tokyo University of Science Shinjuku-ku, Tokyo 162-8601 Japan
- Photocatalysis International Research Center Tokyo University of Science 2641 Yamazaki Noda Chiba 278-8510 Japan
| | - Yukari Imai
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Daiki Suzuki
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Shun Kato
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Ibuki Kobayashi
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Taiyo Suzuki
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Ryo Kaneko
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Sakiat Hossain
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
| | - Yuichi Negishi
- Department of Applied Chemistry Faculty of Science Tokyo University of Science Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan
- Research Institute for Science & Technology Tokyo University of Science Shinjuku-ku, Tokyo 162-8601 Japan
- Photocatalysis International Research Center Tokyo University of Science 2641 Yamazaki Noda Chiba 278-8510 Japan
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121
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Wei J, Halet JF, Kahlal S, Saillard JY, Muñoz-Castro A. Toward the Formation of N-Heterocyclic-Carbene-Protected Gold Clusters of Various Nuclearities. A Comparison with Their Phosphine-Protected Analogues from Density Functional Theory Calculations. Inorg Chem 2020; 59:15240-15249. [PMID: 33021784 DOI: 10.1021/acs.inorgchem.0c02219] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The structure and bonding of a series of selected phosphine-protected gold clusters (Aun-P) of nuclearity varying from n = 6 to 13 were investigated by density functional theory (DFT) calculations and compared to those of the hypothetical homologues in which phosphines were replaced by N-heterocyclic carbene (NHC) analogues (Aun-C). Both the Aun-P and Aun-C series exhibit similar stabilities and structural features, except for n = 6, where some differences are noted. The NHC ligands are found to be even slightly more strongly bonded to the gold core (by a few kilocalories per mole per ligand) than phosphines. Investigation of the optical properties of both series using time-dependent DFT calculations indicates similarities in the nature and energies of the UV-vis optical transitions and, consequently, relatively similar shapes of the simulated spectra, with a general blue-shift tendency when going from Aun-P to Aun-C. The fluorescence behavior observed experimentally for some of the Aun-P species is expected to occur also for their Aun-C analogues, which can be extended to other carbene-ligand-protected nanoclusters. Our results show that it should be possible to stabilize gold clusters with NHC ligands, in relation to the seminal Au13-ligand-protected core, offering novel building blocks for the design of nanostructured materials with various properties.
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Affiliation(s)
- Jianyu Wei
- Institut des Sciences Chimiques de Rennes, Univ Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Jean-François Halet
- Institut des Sciences Chimiques de Rennes, Univ Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes, Univ Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes, Univ Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingenieria, Universidad Autonoma de Chile, El Llano Subercaseaux, Santiago 2801, Chile
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122
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Gam F, Liu CW, Kahlal S, Saillard JY. Electron counting and bonding patterns in assemblies of three and more silver-rich superatoms. NANOSCALE 2020; 12:20308-20316. [PMID: 33001105 DOI: 10.1039/d0nr05179a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
DFT calculations were carried out on a series of cluster cores, the framework of which was made of the condensation of several Pt@Ag12-centered icosahedra. Icosahedral condensations through vertex-sharing, face-sharing, and interpenetration were considered and their favored electron counts were determined from their stable closed-shell configurations. A large number of the computed assemblies of n icosahedral superatomic units can be considered as isolobal analogs of stable, closed-shell n-atom molecules, most of them obeying the octet rule. The larger the degree of fusion between icosahedra, the stronger the interaction between them. For example, it was possible to design 3-icosahedral supermolecular cores analogous to CO2, SF2, or [I3]-, but also to the not-yet-isolated cyclic O3. Supermolecules equivalent to non-stable molecules can also be designed. Indeed, differences exist between atoms and superatoms, and original icosahedra assemblies with no "molecular" analogs are also likely to exist, especially with compact structures and/or systems made of a large number of fused superatoms.
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Affiliation(s)
- Franck Gam
- Université Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - C W Liu
- Department of Chemistry, National Dong Hwa University, No. 1, Sec. 2, Da Hsueh Rd., Shoufeng, Hualien 974301, Taiwan
| | - Samia Kahlal
- Université Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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He F, Ji H, Feng L, Wang Z, Sun Q, Zhong C, Yang D, Gai S, Yang P, Lin J. Construction of thiol-capped ultrasmall Au-Bi bimetallic nanoparticles for X-ray CT imaging and enhanced antitumor therapy efficiency. Biomaterials 2020; 264:120453. [PMID: 33069138 DOI: 10.1016/j.biomaterials.2020.120453] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 10/05/2020] [Accepted: 10/11/2020] [Indexed: 01/27/2023]
Abstract
Thiol capped gold nanoparticles with small size, high dispersity, and broad light absorption covering ultraviolet (UV) to near infrared (NIR) region have been developed for catalysis, fluorescence imaging and photodynamic therapy (PDT). The constitution of the metal core in such nanoparticles can strongly influence the luminescence, catalysis, and stability properties. However, to date, a corresponding investigation of the influence of the metallic core on the generation of reaction oxygen species (ROS) and its therapeutic efficiency towards tumor cells remains to be lacking. Herein, we fabricated bimetallic nanoparticles by introducing bismuth into captopril capped gold nanoparticles. Surprisingly, the introduction of the Bi was found enhance the photothermal effect of the nanoparticles to a great extent, and the variation trends for the thermal effect, ROS generation rate, and tumor cell inhibition effect were found to disparate with the changes in the Au and Bi composition. The origin of the photothermal effect was deduced through density functional theory calculations based on microscopic construction. Combined with the intrinsic photodynamic effect, the bimetallic nanoparticles showed an outstanding tumor cell inhibition effect. Furthermore, due to the excellent CT imaging property, our designed nanoparticles provide the exciting possibility to realize CT imaging guided and light-mediated tumor therapy.
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Affiliation(s)
- Fei He
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Hongjiao Ji
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Zhao Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Qianqian Sun
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Chongna Zhong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Dan Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Material Sciences and Chemical Engineering, Harbin Engineering University, Harbin, 150001, PR China.
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, PR China.
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Tang X, Gao G, Zhang T, Li J, Yu M, He M, Sun T. Charge effects at nano-bio interfaces: a model of charged gold nanoclusters on amylin fibrillation. NANOSCALE 2020; 12:18834-18843. [PMID: 32895690 DOI: 10.1039/d0nr03877f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The misfolding and abnormal amyloid fibrillation of proteins/peptides are associated with more than 20 human diseases. Although dozens of nanoparticles have been investigated for the inhibition effect on the misfolding and fibrillation of pathogenesis-related proteins/peptides, there are few reports on charge effects of nano inhibitors on amyloid fibrillation. Herein, same-sized gold nanoclusters modified with 2-aminoethanethiol hydrochloride (CSH-AuNCs, positively charged in pH 7.4) or 3-mercaptopropionic acid (MPA-AuNCs, negatively charged in pH 7.4) were synthesized and adopted as models to explore the charge effect of nano inhibitors on amylin fibrillation at the nano-bio interface. ThT fluorescence kinetics analysis, AFM images and circular dichroism (CD) spectra showed that electropositive CSH-AuNCs inhibited the misfolding and fibrillation of amylin in a dosage-dependent manner, but electronegative MPA-AuNCs accelerated the misfolding and fibrillation of amylin in a dosage-dependent manner. Moreover, the theoretical and experimental results revealed the interaction mechanism between amylin and ligands of AuNCs at the nano-bio interfaces. Electropositive CSH-AuNCs could be bound to the main nucleating region of amylin via hydrogen bonding and endowed the nanocomplex with more positive net charges (amylin monomer with a positive +26.23 ± 0.80 mV zeta potential), which would inhibit the misfolding and aggregation of amylin via electrostatic repulsion and steric hindrance. In contrast, electronegative MPA-AuNCs could absorb electropositive amylin via strong electrostatic attractions, which accelerated the fibrillation process of amylin via enhancing local concentrations. Moreover, cell experiments showed that both the charged AuNCs had good biocompatibility and electronegetive MPA-AuNCs showed a better protective effect in the amylin-induced cell model than electropositive CSH-AuNCs. These results provide an insight into structure-based nanodrug design for protein conformational diseases.
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Affiliation(s)
- Xintong Tang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, China.
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Zheng R, Bevacqua GM, Young NR, Allison TC, Tong YJ. Site-Dependent Spin Delocalization and Evidence of Ferrimagnetism in Atomically Precise Au 25(SR) 180 Clusters as Seen by Solution 13C NMR Spectroscopy. J Phys Chem A 2020; 124:7464-7469. [PMID: 32819099 DOI: 10.1021/acs.jpca.0c02915] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We report a simple but detailed solution 13C nuclear magnetic resonance spectroscopic study of atomically precise neutral Au25(SR)180 (SR = alkyl thiolate) clusters. The paramagnetic 13C Knight shift of alkyl chain carbons, which is proportional to the local electron spin density, exhibits an electron spin delocalization that exponentially decays along the alkyl chain. The magnitude and decay constant of the observed electron spin delocalization, although largely independent of alkyl chain length, depend on where, that is, "in" versus "out" (vide infra) position, the alkyl chain is bound, in agreement with density functional theory calculations. Notably, the determined position-dependent decay constants, 1.70/Å and 0.41/Å for "in" and "out" ligands, respectively, not only could have important ramifications in molecular spintronics but are also comparable to measured decay constants in molecular electrical conductance of alkyl chains, potentially offering an alternative, simple method for estimating the latter. Moreover, the negative intercept temperatures of linear fits of reciprocal 13C (as well its bound 1H) Knight shift versus temperature strongly suggest the existence of local ferrimagnetism in individual Au25(SR)180 clusters.
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Affiliation(s)
- Rongfeng Zheng
- Department of Chemistry, Georgetown University, 37th & O Streets, NW, Washington, District of Columbia 20057, United States
| | - Gianna M Bevacqua
- Department of Chemistry, Georgetown University, 37th & O Streets, NW, Washington, District of Columbia 20057, United States
| | - Nicholas R Young
- Department of Chemistry, Georgetown University, 37th & O Streets, NW, Washington, District of Columbia 20057, United States
| | - Thomas C Allison
- Chemical Informatics Group, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8320, Gaithersburg, Maryland 20899-8320, United States
| | - YuYe J Tong
- Department of Chemistry, Georgetown University, 37th & O Streets, NW, Washington, District of Columbia 20057, United States
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126
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Hou TY, Shao FY, Sun YT, Yang KS, Chang WH, Lin CAJ. From mono-PEGylation towards anti-nonspecific protein interaction: comparison of dihydrolipoic acid versus glutathione-capped fluorescent gold nanoclusters using gel electrophoresis. NANOSCALE 2020; 12:17786-17794. [PMID: 32820774 DOI: 10.1039/d0nr03359f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ultrafine fluorescent gold nanoclusters (AuNCs) have emerged as biocompatible nanoprobes for biomedical imaging in vivo, and the precision surface chemistry of AuNCs is the key for attaining their clinical application. Comparison of two promising candidates for future nanomedicine, i.e. dihydrolipoic acid- versus glutathione-capped AuNCs (AuNC@DHLA vs. AuNC@GSH), was conducted for the first time to clarify their polyethylene glycol-related bioconjugate chemistry (PEGylation) and protein interactions. Gel electrophoresis was performed to separate the number of AuNCs PEGylation, and the molecular weight of the PEG spacer dominated the resolution of the separation in the gel. We have engineered and isolated the mono-PEGylated AuNCs either from the indirect carbodiimide bioconjugate chemistry or the direct Au-S binding. One-pot synthesis showed great efficiency for isolating mono-PEGylated AuNC@GSH from the tailored controlled aggregation of Au(i)-thiolate complexes on in situ generated Au(0) cores. Post-PEGylation of AuNC@GSH was also feasible using monodendate thiol-terminated PEG, but bidendate ligands of AuNC@DHLA exhibited low PEGylated efficiency by Au-S binding. In addition, mono-PEGylated AuNC@GSH significantly enhanced the ability of anti-nonspecific protein adsorption, but mono-PEGylated AuNC@DHLA cannot avoid the nonspecific binding with serum albumin. In addition, specific nano-assembly involving mono-biotinylated AuNCs with streptavidin were also compared using gel electrophoresis. These results provide key insights into the selection, preparation and design of functional AuNCs as nanoprobes for versatile biomedical applications.
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Affiliation(s)
- Tzu-Yin Hou
- Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan (R.O.C.).
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127
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Li G, Hu W, Sun Y, Xu J, Cai X, Cheng X, Zhang Y, Tang A, Liu X, Chen M, Ding W, Zhu Y. Reactivity and Lability Modulated by a Valence Electron Moving in and out of 25-Atom Gold Nanoclusters. Angew Chem Int Ed Engl 2020; 59:21135-21142. [PMID: 32729214 DOI: 10.1002/anie.202009278] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 07/25/2020] [Indexed: 01/14/2023]
Abstract
The emergence of atomically precise metal nanoclusters with unique electronic structures provides access to currently inaccessible catalytic challenges at the single-electron level. We investigate the catalytic behavior of gold Au25 (SR)18 nanoclusters by monitoring an incoming and outgoing free valence electron of Au 6s1 . Distinct performances are revealed: Au25 (SR)18 - is generated upon donation of an electron to neutral Au25 (SR)18 0 and this is associated with a loss in reactivity, whereas Au25 (SR)18 + is generated from dislodgment of an electron from neutral Au25 (SR)18 0 with a loss in stability. The reactivity diversity of the three Au25 (SR)18 clusters stems from different affinities with reactants and the extent of intramolecular charge migration during the reactions, which are closely associated with the valence occupancies of the clusters varied by one electron. The stability difference in the three clusters is attributed to their different equilibria, which are established between the AuSR dissociation and polymerization influenced by one electron.
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Affiliation(s)
- Guangjun Li
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Weigang Hu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yongnan Sun
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Jiayu Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Xiao Cai
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Xinglian Cheng
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yuying Zhang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Ancheng Tang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Xu Liu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Mingyang Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Weiping Ding
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
| | - Yan Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
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128
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Li G, Hu W, Sun Y, Xu J, Cai X, Cheng X, Zhang Y, Tang A, Liu X, Chen M, Ding W, Zhu Y. Reactivity and Lability Modulated by a Valence Electron Moving in and out of 25‐Atom Gold Nanoclusters. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009278] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Guangjun Li
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Weigang Hu
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Yongnan Sun
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Jiayu Xu
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Xiao Cai
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Xinglian Cheng
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Yuying Zhang
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Ancheng Tang
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Xu Liu
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Mingyang Chen
- School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Weiping Ding
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
| | - Yan Zhu
- School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 China
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129
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Abstract
Hydrogen is ubiquitous in catalysis. It is involved in many important reactions such as water splitting, N2 reduction, CO2 reduction, and alkane activation. In this Perspective, we focus on the hydrogen atom and follow its electron as it interacts with a catalyst or behaves as part of a catalyst from a computational point of view. We present recent examples in both nanocluster and solid catalysts to elucidate the parameters governing the strength of the hydrogen-surface interactions based on site geometry and electronic structure. We further show the interesting behavior of hydride in nanometal and oxides for catalysis. The key take-home messages are: (1) the in-the-middle electronegativity and small size of hydrogen give it great versatility in interacting with active sites on nanoparticles and solid surfaces; (2) the strength of hydrogen binding to an active site on a surface is an important descriptor of the chemical and catalytic properties of the surface; (3) the energetics of the hydrogen binding is closely related to the electronic structure of the catalyst; (4) hydrides in nanoclusters and oxides and on surfaces offer unique reactivity for reduction reactions.
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Affiliation(s)
- Victor Fung
- Department of Chemistry, University of California, Riverside, California 92521, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Guoxiang Hu
- Department of Chemistry, University of California, Riverside, California 92521, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zili Wu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - De-En Jiang
- Department of Chemistry, University of California, Riverside, California 92521, United States
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130
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Affiliation(s)
- Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Qiuying Du
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Vijay Kumar
- Center for Informatics, School of Natural Sciences, Shiv Nadar University, NH-91, Tehsil Dadri, Gautam Buddha Nagar 201314, U. P., India
- Dr. Vijay Kumar Foundation, 1969 Sector 4, Gurgaon 122001, Haryana, India
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131
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Kang X, Li Y, Zhu M, Jin R. Atomically precise alloy nanoclusters: syntheses, structures, and properties. Chem Soc Rev 2020; 49:6443-6514. [PMID: 32760953 DOI: 10.1039/c9cs00633h] [Citation(s) in RCA: 287] [Impact Index Per Article: 71.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metal nanoclusters fill the gap between discrete atoms and plasmonic nanoparticles, providing unique opportunities for investigating the quantum effects and precise structure-property correlations at the atomic level. As a versatile strategy, alloying can largely improve the physicochemical performances compared to the corresponding homo-metal nanoclusters, and thus benefit the applications of such nanomaterials. In this review, we highlight the achievements of atomically precise alloy nanoclusters, and summarize the alloying principles and fundamentals, including the synthetic methods, site-preferences for different heteroatoms in the templates, and alloying-induced structure and property changes. First, based on various Au or Ag nanocluster templates, heteroatom doping modes are presented. The templates with electronic shell-closing configurations tend to maintain their structures during doping, while the others may undergo transformation and give rise to alloy nanoclusters with new structures. Second, alloy nanoclusters of specific magic sizes are reviewed. The arrangement of different atoms is related to the symmetry of the structures; that is, different atoms are symmetrically located in the nanoclusters of smaller sizes, and evolve into shell-by-shell structures at larger sizes. Then, we elaborate on the alloying effects in terms of optical, electrochemical, electroluminescent, magnetic and chiral properties, as well as the stability and reactivity via comparisons between the doped nanoclusters and their homo-metal counterparts. For example, central heteroatom-induced photoluminescence enhancement is emphasized. The applications of alloy nanoclusters in catalysis, chemical sensing, bio-labeling, and other fields are further discussed. Finally, we provide perspectives on existing issues and future efforts. Overall, this review provides a comprehensive synthetic toolbox and controllable doping modes so as to achieve more alloy nanoclusters with customized compositions, structures, and properties for applications. This review is based on publications available up to February 2020.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
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132
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Nashimoto T, Yao H. Strong chiroptical activity in Au 25 clusters protected by mixed ligands of chiral phosphine and achiral thiolate. Phys Chem Chem Phys 2020; 22:15288-15294. [PMID: 32617542 DOI: 10.1039/d0cp02543g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the successful synthesis of a chiroptically active Au25 cluster protected by mixed ligands of chiral bidentate S-BINAP and achiral dodecanethiol (DDT), which can be formulated as [Au25(S-BINAP)4(DDT)5X4] (X = Cl or Br). The UV-vis absorption spectral pattern is similar to that of the well-known bi-icosahedral cluster [Au25(PPh3)10(SR)5X2]2+, so the obtained cluster should also have a similar bi-icosahedral structure assembled from two vertex-sharing icosahedral Au13 units. With a closer inspection of the optical absorption, interestingly, the lowest-energy peak is red-shifted as compared to that of [Au25(PPh3)10(SR)5X2]2+. Quantum chemical calculations for model bi-icosahedral Au25 structures suggest the reason of the red shift. On the other hand, the obtained Au25 cluster exhibits a weak CD signature in the lowest-energy transition region, whereas higher-energy transitions have very large chiroptical responses with a maximum g-factor of 1.7 × 10-3. The calculations also give implications for the origin of the CD response in the Au25 cluster. We then believe that bi-icosahedral Au25 clusters with chirality will be a good prototype for understanding the influence of constituent Au13 units on the chiroptical activity of their assembling structures.
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Affiliation(s)
- Takumi Nashimoto
- Division of Chemistry for Materials, Graduate School of Engineering, Mie University, 1577 Kurimamachiya-cho, Tsu, Mie 514-8507, Japan.
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133
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Vanzan M, Rosa M, Corni S. Atomistic insight into the aggregation of [Au 25(SR) 18] q nanoclusters. NANOSCALE ADVANCES 2020; 2:2842-2852. [PMID: 36132411 PMCID: PMC9417423 DOI: 10.1039/d0na00213e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/16/2020] [Indexed: 05/31/2023]
Abstract
Atomically precise nanoclusters have been proven to give solid state aggregates with intriguing optical properties. However, the mechanism that regulates this aggregation remains unclear. Here, the aggregation of two Au25 nanoclusters in solution is investigated through enhanced sampling molecular dynamics simulations. To understand how the free energy of the systems depends on the nanocluster features, calculations were performed on three nanocluster pairs which differ in charge states and substituent nature and dimension. Our results show that the choice of the ligands heavily affects the free energy profile of the systems when the structures are nearby and, in some cases, the formation of a dimeric phase is observed. This phase is particularly stable in long-chain substituted nanoclusters, where the long alkane chains can generate bundles and the gold cores are closer compared to the short-chain ligands. We found a remarkable agreement between our calculations and the literature-available solid-state structures, especially for the orientation of the interacting nanoclusters. Moreover, some of the dimeric structures are prodromal to the formation of the aurophilic intercluster bond observed in the crystal structures, meaning that the dimer can act as a precursor and can drive the whole crystallization mechanism toward the formation of stable crystal species.
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Affiliation(s)
- Mirko Vanzan
- Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Marta Rosa
- Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Stefano Corni
- Department of Chemical Sciences, University of Padova Via Marzolo 1 35131 Padova Italy
- CNR Institute of Nanoscience Center S3, via G. Campi 213/A Modena 41125 Italy
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134
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Sun Q, Nie HH, Su HF, Yang SY, Teo BK. Synthesis, Structures, and Photoluminescence of Elongated Face-Centered-Cubic Ag 14 Clusters Containing Lipoic Acid and Its Amide Analogue. Inorg Chem 2020; 59:8836-8845. [PMID: 32551557 DOI: 10.1021/acs.inorgchem.0c00592] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Three face-centered-cubic (fcc) silver clusters-namely, [Ag14(LA)2(HLA)4(PPh3)8]2- (1), [Ag14(HLA)6(PPh3)8] (2), and [Ag14(NLA)6(PPh3)8] (3)-that are coprotected by lipoic acid (or its amide derivative) and phosphine ligands have been synthesized and structurally characterized (HLA = (±)-α-lipoic acid, LA = (±)-α-lipoate, and NLA = d,l-6,8-thioctamide). These clusters possess two superatomic electrons (the Jellium model), in harmony with a bonding octahedral Ag6 core capped with 8 Ag atoms. Alternatively, the metal framework of 1-3 can be described as adopting a face-centered cubic (fcc) structure elongated along one of the 3-fold axes. The 12 S atoms from the six bioligands bridge the 12 edges of the (fcc) cube, forming a distorted icosahedron. The counterions, solvent or guest molecules play an important role in dictating the crystal lattices of the products. This is the first report of atom-precise structures of Ag-lipoic acid (or its derivatives) clusters, paving the way for further study of structure-property relationships of these bioligand protected metal nanoclusters. Photoluminescence was observed for cluster 3 with complex temperature-dependent emission patterns and efficiencies.
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Affiliation(s)
- Qin Sun
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Hong-Hong Nie
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Hai-Feng Su
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Shi-Yao Yang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
| | - Boon K Teo
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
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135
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Comby-Zerbino C, Bertorelle F, Dugourd P, Antoine R, Chirot F. Structure and Charge Heterogeneity in Isomeric Au25(MBA)18 Nanoclusters—Insights from Ion Mobility and Mass Spectrometry. J Phys Chem A 2020; 124:5840-5848. [DOI: 10.1021/acs.jpca.0c03131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Clothilde Comby-Zerbino
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5306, Institut Lumière Matière, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Franck Bertorelle
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5306, Institut Lumière Matière, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Philippe Dugourd
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5306, Institut Lumière Matière, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Rodolphe Antoine
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5306, Institut Lumière Matière, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Fabien Chirot
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, UMR5280, Institut des Sciences Analytiques, 5 rue de la Doua, Villeurbanne F-69100, France
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136
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Sibakoti TR, Jasinski JB, Nantz MH, Zamborini FP. Iodine activation: a general method for catalytic enhancement of thiolate monolayer-protected metal clusters. NANOSCALE 2020; 12:12027-12037. [PMID: 32467955 PMCID: PMC7350617 DOI: 10.1039/d0nr00844c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To enhance catalytic activity, the present study details a general approach for partial thiolate ligand removal from monolayer-protected clusters (MPCs) by straightforward in situ addition of iodine. Two model reactions are examined to illustrate the effects on the catalytic activity of glutathione (SG)-capped Au MPCs serving as a catalyst for the NaBH4 reduction of 4-nitrophenol to 4-aminophenol and SG-capped Pd MPCs serving as a catalyst for the hydrogenation/isomerization of allyl alcohol. Iodine addition promoted partial thiolate ligand removal from both MPCs and improved the catalytic properties, presumably due to greater surface exposure of the metal cores as a result of ligand dissociation. The rate of 4-nitrophenol reduction increased from 0.066 min-1 in the absence of I2 to 0.505 min-1 in the presence of 2.0 equivalents I2 (equivalents based on total ligated glutathione). The reaction of allyl alcohol to produce 1-propanol and propanal was similarly accelerated as indicated by the increase in turnover frequency from 131 to 230 moles products per moles catalyst per h by addition of 0.2 equivalents I2. In both reactions, as the amount of I2 added increases the catalyst recyclability decreases due to catalyst instability. Low equivalents of I2 are optimal when considering both reaction rate and catalyst recyclability.
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Affiliation(s)
- Tirtha R Sibakoti
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA.
| | - Jacek B Jasinski
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, Kentucky 40292, USA
| | - Michael H Nantz
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA.
| | - Francis P Zamborini
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, USA.
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137
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Kang X, Wei X, Wang S, Zhu M. Controlling the Phosphine Ligands of Pt1Ag28(S-Adm)18(PR3)4 Nanoclusters. Inorg Chem 2020; 59:8736-8743. [DOI: 10.1021/acs.inorgchem.0c00350] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, PR China
| | - Xiao Wei
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, PR China
| | - Shuxin Wang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, PR China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, PR China
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138
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Ebina A, Hossain S, Horihata H, Ozaki S, Kato S, Kawawaki T, Negishi Y. One-, Two-, and Three-Dimensional Self-Assembly of Atomically Precise Metal Nanoclusters. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1105. [PMID: 32503177 PMCID: PMC7353419 DOI: 10.3390/nano10061105] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 12/24/2022]
Abstract
Metal nanoclusters (NCs), which consist of several, to about one hundred, metal atoms, have attracted much attention as functional nanomaterials for use in nanotechnology. Because of their fine particle size, metal NCs exhibit physical/chemical properties and functions different from those of the corresponding bulk metal. In recent years, many techniques to precisely synthesize metal NCs have been developed. However, to apply these metal NCs in devices and as next-generation materials, it is necessary to assemble metal NCs to a size that is easy to handle. Recently, multiple techniques have been developed to form one-, two-, and three-dimensional connected structures (CSs) of metal NCs through self-assembly. Further progress of these techniques will promote the development of nanomaterials that take advantage of the characteristics of metal NCs. This review summarizes previous research on the CSs of metal NCs. We hope that this review will allow readers to obtain a general understanding of the formation and functions of CSs and that the obtained knowledge will help to establish clear design guidelines for fabricating new CSs with desired functions in the future.
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Affiliation(s)
- Ayano Ebina
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
| | - Hikaru Horihata
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
| | - Shuhei Ozaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
| | - Shun Kato
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
| | - Tokuhisa Kawawaki
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
- Research Institute for Science & Technology, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yuichi Negishi
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan; (A.E.); (S.H.); (H.H.); (S.O.); (S.K.); (T.K.)
- Research Institute for Science & Technology, Tokyo University of Science, Shinjuku-ku, Tokyo 162-8601, Japan
- Photocatalysis International Research Center, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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139
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Ruan ZW, Zhang X, Pang AY, Dai FR, Chen ZN. Blue luminescent silver(I) complexes constructed by 2-diphenylphosphinopyridine and dicyanamide or tricyanomethanide. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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140
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Basu S, Hajra A, Gayen C, Paul A. Zinc-Ion-Induced Aggregation of Gold Clusters for Visible-Light-Excitation-Based Fluorimetric Discrimination of Geometrical Isomers. Chemphyschem 2020; 21:809-813. [PMID: 32017395 DOI: 10.1002/cphc.201901044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 02/04/2020] [Indexed: 12/20/2022]
Abstract
Herein, we report discrimination of dicarboxylic acids - fumaric acid (FA) and maleic acid (MA) - exhibiting geometrical isomerism, using nanoclusters based luminescent probe having excitation under broad day light. The luminescent probe was designed via complexation reaction between zinc ions and ligands (mercaptopropioinc acid; MPA) stabilizing the gold nanoclusters. This resulted in formation of nanoaggregates exhibiting bright green luminescence upon excitation at 450 nm capable of discriminating between FA and MA upto nanomolar level. The basis of discrimination has been attributed to deprotonation of FA and MA following interaction with MPA moieties present on the surface of the nanoaggregates and being governed by the stability of the respective conjugate base of the geometrical isomers of the dicarboxylic acids. As a consequence of different extent of deprotonation of FA and MA upon interaction with the cluster aggregates, different effect on the luminescence of the aggregates was observed, thus enabling discernible fluorimetric discrimination between FA and MA under visible light excitation.
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Affiliation(s)
- Srestha Basu
- Department of chemistry, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Archismita Hajra
- Centre for nanotechnology, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Chirantan Gayen
- Department of chemistry, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Anumita Paul
- Department of chemistry, Indian Institute of Technology Guwahati, Assam, 781039, India
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141
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Agrachev M, Fei W, Antonello S, Bonacchi S, Dainese T, Zoleo A, Ruzzi M, Maran F. Understanding and controlling the efficiency of Au 24M(SR) 18 nanoclusters as singlet-oxygen photosensitizers. Chem Sci 2020; 11:3427-3440. [PMID: 34777743 PMCID: PMC8524663 DOI: 10.1039/d0sc00520g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 02/18/2020] [Indexed: 01/04/2023] Open
Abstract
Singlet oxygen, 1O2, can be generated by molecules that upon photoexcitation enable the 3O2 → 1O2 transition. We used a series of atomically precise Au24M(SR)18 clusters, with different R groups and doping metal atoms M. Upon nanosecond photoexcitation of the cluster, 1O2 was efficiently generated. Detection was carried out by time-resolved electron paramagnetic resonance (TREPR) spectroscopy. The resulting TREPR transient yielded the 1O2 lifetime as a function of the nature of the cluster. We found that: these clusters indeed generate 1O2 by forming a triplet state; a more positive oxidation potential of the molecular cluster corresponds to a longer 1O2 lifetime; proper design of the cluster yields results analogous to those of a well-known reference photosensitizer, although more effectively. Comprehensive kinetic analysis provided important insights into the mechanism and driving-force dependence of the quenching of 1O2 by gold nanoclusters. Understanding on a molecular basis why these molecules may perform so well in 1O2 photosensitization is instrumental to controlling their performance.
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Affiliation(s)
- Mikhail Agrachev
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Wenwen Fei
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Sabrina Antonello
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Sara Bonacchi
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Tiziano Dainese
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Alfonso Zoleo
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Marco Ruzzi
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
| | - Flavio Maran
- Department of Chemistry, University of Padova Via Marzolo 1 35131 Padova Italy
- Department of Chemistry, University of Connecticut 55 North Eagleville Road, Storrs 06269 Connecticut USA
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142
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Liu L, Luo X, Liu J. Bidirectional Regulation of Singlet Oxygen Generation from Luminescent Gold Nanoparticles through Surface Manipulation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000011. [PMID: 32174021 DOI: 10.1002/smll.202000011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 01/30/2020] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Singlet oxygen (1 O2 ) generation has been observed from ultrasmall luminescent gold nanoparticles (AuNPs), but regulation of 1 O2 generation ability from the nanosized noble metals has remained challenging. Herein, the 1 O2 generation ability of ultrasmall AuNPs (d ≈ 1.8 nm) is reported to be highly correlated to the surface factors including the amount of Au(I) species and surface charge. By taking the advantages of facile in situ PEGylation, it is discovered that a high amount of Au(I) species and surface charge results in strong ability in generation of 1 O2 , whereas a relative low amount of Au(I) species and surface charge leads to weak ability in 1 O2 production. A feasible general strategy is then developed to controllably regulate the 1 O2 generation efficiency of the AuNPs through facile ligand exchange with positively-charged or negatively-charged thiolated ligands. The AuNPs as nanophotosensitizer for 1 O2 generation in the cellular level is also demonstrated to be highly controllable through surface ligand exchange with synergistical effects of 1 O2 generation ability and subcellular distribution to lysosome or mitochondria. The strategy in the bidirectional regulation of 1 O2 generation from ultrasmall AuNPs provides guidance for future design of nanosized metal nanomedicine toward specific disease diagnosis and treatment.
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Affiliation(s)
- Lulu Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Xiaoxi Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Jinbin Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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143
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Liu Z, Jung KO, Takahata R, Sakamoto M, Teranishi T, Fujitsuka M, Pratx G, Osakada Y. Hard X-ray excited optical luminescence from protein-directed Au ∼20 clusters. RSC Adv 2020; 10:13824-13829. [PMID: 35492997 PMCID: PMC9051530 DOI: 10.1039/d0ra01935f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/24/2020] [Indexed: 11/21/2022] Open
Abstract
Hard X-ray excited optical luminescence is a unique property of materials, which makes them promising for biological imaging applications. However, the preparation of biocompatible contrast agents for hard X-ray excited optical luminescence remains a considerable challenge that has, to date, not been overcome. In this study, we investigated the luminescence properties of protein-directed Au∼20 clusters upon hard X-ray irradiation, both in solution and when embedded in films.
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Affiliation(s)
- Zuoyue Liu
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University Mihogaoka 8-1 Osaka 567-0047 Ibaraki Japan
| | - Kyung Oh Jung
- Department of Radiation Oncology and Medical Physics, Stanford University 300 Pasteur Dr Stanford CA 94305 USA
| | - Ryo Takahata
- Institute for Chemical Research, Kyoto University Gokasho, Uji Kyoto 611-0011 Japan
| | - Masanori Sakamoto
- Institute for Chemical Research, Kyoto University Gokasho, Uji Kyoto 611-0011 Japan
| | - Toshiharu Teranishi
- Institute for Chemical Research, Kyoto University Gokasho, Uji Kyoto 611-0011 Japan
| | - Mamoru Fujitsuka
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University Mihogaoka 8-1 Osaka 567-0047 Ibaraki Japan
| | - Guillem Pratx
- Department of Radiation Oncology and Medical Physics, Stanford University 300 Pasteur Dr Stanford CA 94305 USA
| | - Yasuko Osakada
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University Mihogaoka 8-1 Osaka 567-0047 Ibaraki Japan
- Institute for Advanced Co-creation Studies, Osaka University 1-1 Yamadagaoka, Suita Osaka 565-0871 Japan
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144
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Nonappa. Luminescent gold nanoclusters for bioimaging applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:533-546. [PMID: 32280577 PMCID: PMC7136552 DOI: 10.3762/bjnano.11.42] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/18/2020] [Indexed: 05/27/2023]
Abstract
Luminescent nanomaterials have emerged as attractive candidates for sensing, catalysis and bioimaging applications in recent years. For practical use in bioimaging, nanomaterials with high photoluminescence, quantum yield, photostability and large Stokes shifts are needed. While offering high photoluminescence and quantum yield, semiconductor quantum dots suffer from toxicity and are susceptible to oxidation. In this context, atomically precise gold nanoclusters protected by thiol monolayers have emerged as a new class of luminescent nanomaterials. Low toxicity, bioavailability, photostability as well as tunable size, composition, and optoelectronic properties make them suitable for bioimaging and biosensing applications. In this review, an overview of the sensing of pathogens, and of in vitro and in vivo bioimaging using luminescent gold nanoclusters along with the limitations with selected examples are discussed.
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Affiliation(s)
- Nonappa
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, FI-02150, Espoo, Finland
- Bioproducts and Biosystems, Aalto University School of Chemical Engineering, Kemistintie 1, FI-02150, Espoo, Finland
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145
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Lillo CR, Calienni MN, Rivas Aiello B, Prieto MJ, Rodriguez Sartori D, Tuninetti J, Toledo P, Alonso SDV, Moya S, Gonzalez MC, Montanari J, Soler-Illia GJAA. BSA-capped gold nanoclusters as potential theragnostic for skin diseases: Photoactivation, skin penetration, in vitro, and in vivo toxicity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110891. [PMID: 32409048 DOI: 10.1016/j.msec.2020.110891] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/09/2020] [Accepted: 03/20/2020] [Indexed: 12/18/2022]
Abstract
BSA-capped gold nanoclusters are promising theragnostic systems that can be excited to render both fluorescence emission and reactive oxygen species. Although their synthesis and photoluminescence properties are already well described, more accurate information about their use as photosensitizers is required in order to advance towards health applications. In this work, we have obtained BSA-capped gold nanoclusters and characterized their photophysics by different techniques. Singlet oxygen production was detected upon irradiation, which was enough to produce toxicity on two cell lines. Remarkably, an internal energy transfer, probably due to the presence of smaller nanoclusters and the contribution of oxidized residues of BSA in the system, caused fluorescence emission near 640 nm after excitation in the UV range. Additionally, the system was capable of penetrating human skin beyond the stratum corneum, which enhances the potential of these nanoclusters as bifunctional photodynamic therapy effectors and biomarkers with application in a diversity of skin diseases. In the absence of radiation, BSA-capped gold nanoclusters did not cause toxicity in vitro, while their toxic effect on an in vivo model as zebrafish was determined.
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Affiliation(s)
- Cristian R Lillo
- Instituto de Nanosistemas (INS), Universidad Nacional de San Martín-CONICET, Av. 25 de Mayo 1021, San Martín, Buenos Aires, Argentina; Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - M Natalia Calienni
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Bio-Nanotecnologia, Bernal, Buenos Aires, Argentina; Grupo de Biología Estructural y Biotecnología (GBEyB), IMBICE (CONICET CCT-La Plata), Buenos Aires, Argentina
| | - Belen Rivas Aiello
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - M Jimena Prieto
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Bio-Nanotecnologia, Bernal, Buenos Aires, Argentina; Grupo de Biología Estructural y Biotecnología (GBEyB), IMBICE (CONICET CCT-La Plata), Buenos Aires, Argentina
| | - Damián Rodriguez Sartori
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Jimena Tuninetti
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Pamela Toledo
- Grupo de Biología Estructural y Biotecnología (GBEyB), IMBICE (CONICET CCT-La Plata), Buenos Aires, Argentina
| | - Silvia Del Valle Alonso
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Bio-Nanotecnologia, Bernal, Buenos Aires, Argentina; Grupo de Biología Estructural y Biotecnología (GBEyB), IMBICE (CONICET CCT-La Plata), Buenos Aires, Argentina
| | - Sergio Moya
- Centro de Investigación Cooperativa en Biomateriales (CIC BiomaGUNE), 20009 Donostia-San Sebastián, Guipúzcoa, Spain
| | - Mónica C Gonzalez
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, UNLP-CONICET, CC16 Suc 4 (1900), La Plata, Buenos Aires, Argentina
| | - Jorge Montanari
- Universidad Nacional de Quilmes, Departamento de Ciencia y Tecnología, Laboratorio de Bio-Nanotecnologia, Bernal, Buenos Aires, Argentina; Grupo de Biología Estructural y Biotecnología (GBEyB), IMBICE (CONICET CCT-La Plata), Buenos Aires, Argentina.
| | - Galo J A A Soler-Illia
- Instituto de Nanosistemas (INS), Universidad Nacional de San Martín-CONICET, Av. 25 de Mayo 1021, San Martín, Buenos Aires, Argentina
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146
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Hosier CA, Anderson ID, Ackerson CJ. Acetylide-for-thiolate and thiolate-for-acetylide exchange on gold nanoclusters. NANOSCALE 2020; 12:6239-6242. [PMID: 32150189 DOI: 10.1039/d0nr00869a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Acetylide-protected gold nanoclusters represent a recently described class of nanocluster compounds that are computationally predicted to be more stable than well-studied thiolate-protected clusters. Ligand exchange of thiolates-for-acetylides on these clusters as well as the reverse reaction are so-far unknown. Such reactions can inform a practical understanding of stability and other differences between thiolate- and acetylide-protected gold clusters. Here it is shown that acetylide-for-thiolate ligand exchange is facile when using either a lithium phenylacetylide or a gold(i)-phenylacetylide complex as incoming ligand to thiolate-protected gold clusters, whereas the reaction fails when using phenylacetylene. Both partial and full exchange are possible, as is the reverse reaction. While the overall reaction resembles ligand exchange, it may be better described as a metathesis reaction. Notably, while the simple thiolate-for-acetylide exchange reaction is enthalpically unfavorable, metathesis reactions between these ligands are enthalpically favorable. Intercluster exchange is also observed between thiolate-protected and acetylide-protected clusters.
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Affiliation(s)
- Christopher A Hosier
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
| | - Ian D Anderson
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
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147
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Elucidating the stability of ligand-protected Au nanoclusters under electrochemical reduction of CO2. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2488-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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148
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Mato J, Guidez EB. Accuracy of the PM6 and PM7 Methods on Bare and Thiolate-Protected Gold Nanoclusters. J Phys Chem A 2020; 124:2601-2615. [DOI: 10.1021/acs.jpca.9b11474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joani Mato
- Department of Chemistry, University of Colorado Denver, Denver, Colorado 80217, United States
| | - Emilie B. Guidez
- Department of Chemistry, University of Colorado Denver, Denver, Colorado 80217, United States
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149
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Thangudu S, Kalluru P, Vankayala R. Preparation, Cytotoxicity, and In Vitro Bioimaging of Water Soluble and Highly Fluorescent Palladium Nanoclusters. Bioengineering (Basel) 2020; 7:bioengineering7010020. [PMID: 32098070 PMCID: PMC7175340 DOI: 10.3390/bioengineering7010020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/11/2020] [Accepted: 02/18/2020] [Indexed: 01/16/2023] Open
Abstract
Fluorescent probes offer great potential to identify and treat surgical tumors by clinicians. To this end, several molecular probes were examined as in vitro and in vivo bioimaging probes. However, due to their ultra-low extinction coefficients as well as photobleaching problems, conventional molecular probes limit its practical utility. To address the above mentioned challenges, metal nanoclusters (MNCs) can serve as an excellent alternative with many unique features such as higher molar extinction coefficients/light absorbing capabilities, good photostability and appreciable fluorescence quantum yields. Herein, we reported a green synthesis of water soluble palladium nanoclusters (Pd NCs) and characterized them by using various spectroscopic and microscopic characterization techniques. These nanoclusters showed excellent photophysical properties with the characteristic emission peak centered at 500 nm under 420 nm photoexcitation wavelength. In vitro cytotoxicity studies in human cervical cancer cells (HeLa) cells reveal that Pd NCs exhibited good biocompatibility with an IC50 value of >100 µg/mL and also showed excellent co-localization and distribution throughout the cytoplasm region with a significant fraction translocating into cell nucleus. We foresee that Pd NCs will carry huge potential to serve as a new generation bioimaging nanoprobe owing to its smaller size, minimal cytotoxicity, nucleus translocation capability and good cell labelling properties.
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Affiliation(s)
- Suresh Thangudu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan;
| | - Poliraju Kalluru
- Department of Chemistry, University of Calgary, Calgary, AB T2N 1N4, Canada;
| | - Raviraj Vankayala
- Department of Bioscience and Bioengineering, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342037, India
- Correspondence:
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150
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Ma X, Tang Z, Qin L, Peng J, Li L, Chen S. Unravelling the formation mechanism of alkynyl protected gold clusters: a case study of phenylacetylene stabilized Au 144 molecules. NANOSCALE 2020; 12:2980-2986. [PMID: 31994572 DOI: 10.1039/c9nr10930g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite recent progress in the preparation of alkynyl protected Au clusters with molecular purity (e.g., Na[Au25(C[triple bond, length as m-dash]CAr)18, Ar = 3,5-(CF3)2C6H3-, Au36(C[triple bond, length as m-dash]CPh)24, Au44(C[triple bond, length as m-dash]CPh)28, and Au144(C[triple bond, length as m-dash]CAr)60, Ar = 2-F-C6H4-), the formation mechanism still remains elusive. Herein, a new molecule-like alkynyl Au cluster was successfully prepared, and its formula was determined as Au144(PA)60 (PA = PhC[triple bond, length as m-dash]C-, phenylacetylene). In the formation of Au144(PA)60, the introduction of ethanol in post-synthesis treatment to manipulate the aggregation state of the precursor was found to play a critical role in producing the Au144 clusters. During the Au144(PA)60 formation process, the contents of PA, (PA)2 and (PA)4 were monitored by absorbance and gas chromatography-mass spectrometry (GC-MS), disclosing that Au144(PA)60 molecules were generated in sync with (PA)4. Finally, the formation mechanism of Au144(PA)60 molecules has been tentatively proposed, of which three major stages are involved. This study can shed light on the formation mechanism that may be exploited for the precise control of the synthesis of alkynyl protected coinage metal clusters.
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Affiliation(s)
- Xiaoshuang Ma
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, P. R. China.
| | - Zhenghua Tang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, P. R. China. and Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, Guangdong 510006, P. R. China
| | - Lubing Qin
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, P. R. China.
| | - Jin Peng
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, P. R. China.
| | - Ligui Li
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials and New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, P. R. China.
| | - Shaowei Chen
- Department of Chemistry and Biochemistry, University of California, 1156 High Street, Santa Cruz, California 95064, USA.
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