351
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AbdulHalim LG, Bootharaju MS, Tang Q, Del Gobbo S, AbdulHalim RG, Eddaoudi M, Jiang DE, Bakr OM. Ag29(BDT)12(TPP)4: A Tetravalent Nanocluster. J Am Chem Soc 2015; 137:11970-5. [PMID: 26104755 DOI: 10.1021/jacs.5b04547] [Citation(s) in RCA: 265] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The bottom-up assembly of nanoparticles into diverse ordered solids is a challenge because it requires nanoparticles, which are often quasi-spherical, to have interaction anisotropy akin to atoms and molecules. Typically, anisotropy has been introduced by changing the shape of the inorganic nanoparticle core. Here, we present the design, self-assembly, optical properties, and total structural determination of Ag29(BDT)12(TPP)4, an atomically precise tetravalent nanocluster (NC) (BDT, 1,3-benzenedithiol; TPP, triphenylphosphine). It features four unique tetrahedrally symmetrical binding surface sites facilitated by the supramolecular assembly of 12 BDT (wide footprint bidentate thiols) in the ligand shell. When each of these sites was selectively functionalized by a single phosphine ligand, particle stability, synthetic yield, and the propensity to self-assemble into macroscopic crystals increased. The solid crystallized NCs have a substantially narrowed optical band gap compared to that of the solution state, suggesting strong interparticle electronic coupling occurs in the solid state.
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Affiliation(s)
- Lina G AbdulHalim
- Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Megalamane S Bootharaju
- Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Qing Tang
- Department of Chemistry, University of California , Riverside, California 92508, United States
| | - Silvano Del Gobbo
- Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
| | - Rasha G AbdulHalim
- Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - De-en Jiang
- Department of Chemistry, University of California , Riverside, California 92508, United States
| | - Osman M Bakr
- Division of Physical Sciences and Engineering, Solar and Photovoltaics Engineering Research Center, King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900, Saudi Arabia
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352
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Liu C, Li T, Li G, Nobusada K, Zeng C, Pang G, Rosi NL, Jin R. Observation of Body-Centered Cubic Gold Nanocluster. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502667] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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353
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Liu C, Li T, Li G, Nobusada K, Zeng C, Pang G, Rosi NL, Jin R. Observation of Body‐Centered Cubic Gold Nanocluster. Angew Chem Int Ed Engl 2015; 54:9826-9. [DOI: 10.1002/anie.201502667] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Indexed: 12/21/2022]
Affiliation(s)
- Chao Liu
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213 (USA)
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012 (P. R. China)
| | - Tao Li
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260 (USA)
| | - Gao Li
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213 (USA)
| | - Katsuyuki Nobusada
- Department of Theoretical and Computational Molecular Science, Institute for Molecular Science, Myodaiji, Okazaki, 444‐8585 (Japan)
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615‐8520 (Japan)
| | - Chenjie Zeng
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213 (USA)
| | - Guangsheng Pang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun, Jilin 130012 (P. R. China)
| | - Nathaniel L. Rosi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260 (USA)
| | - Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213 (USA)
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354
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Yang S, Wang S, Jin S, Chen S, Sheng H, Zhu M. A metal exchange method for thiolate-protected tri-metal M(1)Ag(x)Au(24-x)(SR)(18)(0) (M = Cd/Hg) nanoclusters. NANOSCALE 2015; 7:10005-7. [PMID: 25988742 DOI: 10.1039/c5nr01965f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We herein reported the first synthesis of tri-metallic M1AgxAu24-x(SR)18(0) (M = Cd/Hg) nanoclusters by a two-step metal exchange method. Optical spectra suggested that the second and third foreign metals could largely change the electronic structure of homogold Au25(SR)18(-) nanoclusters. This work also provides a novel way to find the doping site of some special metals (such as Cd), which can be done using silver as the isotope of gold.
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Affiliation(s)
- Sha Yang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People's Republic of China.
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355
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Koh TW, Hiszpanski AM, Sezen M, Naim A, Galfsky T, Trivedi A, Loo YL, Menon V, Rand BP. Metal nanocluster light-emitting devices with suppressed parasitic emission and improved efficiency: exploring the impact of photophysical properties. NANOSCALE 2015; 7:9140-9146. [PMID: 25926355 DOI: 10.1039/c5nr01332a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Here we investigate the photophysical properties of Au(0)@Au(i)-thiolate nanoclusters by controlling the degree of aggregation, and measure electrochemical energy levels to design a metal nanocluster-based thin film LED (MNC-LED) structure. These efforts allow us to implement MNC-LEDs with luminance exceeding 40 cd m(-2) and external quantum efficiency exceeding 0.1% with clearly visible orange emission. It is also demonstrated that by varying the sizes of nanoclusters, the electroluminescence spectrum of the device can be tuned to the infrared emission, indicating the possibility of exploiting metal nanocluster emitters for use over a wide spectral range.
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Affiliation(s)
- T-W Koh
- Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
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356
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Sun J, Yang F, Zhao D, Chen C, Yang X. Integrated logic gate for fluorescence turn-on detection of histidine and cysteine based on Ag/Au bimetallic nanoclusters-Cu²⁺ ensemble. ACS APPLIED MATERIALS & INTERFACES 2015; 7:6860-6. [PMID: 25761537 DOI: 10.1021/acsami.5b00434] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
By means of employing 11-mercaptoundecanoic acid (11-MUA) as a reducing agent and protecting ligand, we present straightforward one-pot preparation of fluorescent Ag/Au bimetallic nanoclusters (namely AgAuNCs@11-MUA) from AgNO3 and HAuCl4 in alkaline aqueous solution at room temperature. It is found that the fluorescence of AgAuNCs@11-MUA has been selectively quenched by Cu(2+) ions, and the nonfluorescence off-state of the as-prepared AgAuNCs@11-MUA-Cu(2+) ensemble can be effectively switched on upon the addition of histidine and cysteine. By incorporating Ni(2+) ions and N-ethylmaleimide, this phenomenon is further exploited as an integrated logic gate and a specific fluorescence turn-on assay for selectively and sensitively sensing histidine and cysteine has been designed and established based on the original noncovalent AgAuNCs@11-MUA-Cu(2+) ensemble. Under the optimal conditions, histidine and cysteine can be detected in the concentration ranges of 0.25-9 and 0.25-7 μM; besides, the detection limits are found to be 87 and 111 nM (S/N = 3), respectively. Furthermore, we demonstrate that the proposed AgAuNCs@11-MUA-based fluorescent assay can be successfully utilized for biological fluids sample analysis.
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Affiliation(s)
- Jian Sun
- †State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Fan Yang
- †State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Dan Zhao
- †State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- ‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Chuanxia Chen
- †State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- ‡University of Chinese Academy of Sciences, Beijing 100039, China
| | - Xiurong Yang
- †State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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357
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Wang S, Song Y, Jin S, Liu X, Zhang J, Pei Y, Meng X, Chen M, Li P, Zhu M. Metal Exchange Method Using Au25 Nanoclusters as Templates for Alloy Nanoclusters with Atomic Precision. J Am Chem Soc 2015; 137:4018-21. [DOI: 10.1021/ja511635g] [Citation(s) in RCA: 229] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shuxin Wang
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Yongbo Song
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Shan Jin
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Xia Liu
- Department
of Chemistry, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, People’s Republic of China
| | - Jun Zhang
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Yong Pei
- Department
of Chemistry, Key Laboratory of Environmentally Friendly Chemistry
and Applications of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, People’s Republic of China
| | - Xiangming Meng
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Man Chen
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Peng Li
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
| | - Manzhou Zhu
- Department
of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, People’s Republic of China
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358
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Monodispersed AuPd nanoalloy: composition control synthesis and catalytic properties in the oxidative dehydrogenative coupling of aniline. Sci China Chem 2015. [DOI: 10.1007/s11426-015-5358-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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359
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Gwinn E, Schultz D, Copp SM, Swasey S. DNA-Protected Silver Clusters for Nanophotonics. NANOMATERIALS 2015; 5:180-207. [PMID: 28347005 PMCID: PMC5312861 DOI: 10.3390/nano5010180] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 02/05/2015] [Indexed: 01/08/2023]
Abstract
DNA-protected silver clusters (AgN-DNA) possess unique fluorescence properties that depend on the specific DNA template that stabilizes the cluster. They exhibit peak emission wavelengths that range across the visible and near-IR spectrum. This wide color palette, combined with low toxicity, high fluorescence quantum yields of some clusters, low synthesis costs, small cluster sizes and compatibility with DNA are enabling many applications that employ AgN-DNA. Here we review what is known about the underlying composition and structure of AgN-DNA, and how these relate to the optical properties of these fascinating, hybrid biomolecule-metal cluster nanomaterials. We place AgN-DNA in the general context of ligand-stabilized metal clusters and compare their properties to those of other noble metal clusters stabilized by small molecule ligands. The methods used to isolate pure AgN-DNA for analysis of composition and for studies of solution and single-emitter optical properties are discussed. We give a brief overview of structurally sensitive chiroptical studies, both theoretical and experimental, and review experiments on bringing silver clusters of distinct size and color into nanoscale DNA assemblies. Progress towards using DNA scaffolds to assemble multi-cluster arrays is also reviewed.
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Affiliation(s)
- Elisabeth Gwinn
- Department of Physics, The University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
| | - Danielle Schultz
- Department of Chemistry and Biochemistry, The University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
| | - Stacy M Copp
- Department of Physics, The University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
| | - Steven Swasey
- Department of Chemistry and Biochemistry, The University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
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360
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Yao C, Chen J, Li MB, Liu L, Yang J, Wu Z. Adding two active silver atoms on Au₂₅ nanoparticle. NANO LETTERS 2015; 15:1281-1287. [PMID: 25580617 DOI: 10.1021/nl504477t] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Alloy nanoparticles with atomic monodispersity is of importance for some fundamental research (e.g., the investigation of active sites). However, the controlled preparation of alloy nanoparticles with atomic monodispersity has long been a major challenge. Herein, for the first time a unique method, antigalvanic reduction (AGR), is introduced to synthesize atomically monodisperse Au25Ag2(SC2H4Ph)18 in high yield (89%) within 2 min. Interestingly, the two silver atoms in Au25Ag2(SC2H4Ph)18 do not replace the gold atoms in the precursor particle Au25(SC2H4Ph)18 but collocate on Au25, which was supported by experimental and calculated results. Also, the two silver atoms are active to play roles in stabilizing the alloy nanoparticle, triggering the nanoparticle fluorescence and catalyzing the hydrolysis of 1,3-diphenylprop-2-ynyl acetate.
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Affiliation(s)
- Chuanhao Yao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, China
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361
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Jin R. Atomically precise metal nanoclusters: stable sizes and optical properties. NANOSCALE 2015; 7:1549-65. [PMID: 25532730 DOI: 10.1039/c4nr05794e] [Citation(s) in RCA: 471] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Controlling nanoparticles with atomic precision has long been a major dream of nanochemists. Breakthroughs have been made in the case of gold nanoparticles, at least for nanoparticles smaller than ∼3 nm in diameter. Such ultrasmall gold nanoparticles indeed exhibit fundamentally different properties from those of the plasmonic counterparts owing to the quantum size effects as well as the extremely high surface-to-volume ratio. These unique nanoparticles are often called nanoclusters to distinguish them from conventional plasmonic nanoparticles. Intense work carried out in the last few years has generated a library of stable sizes (or stable stoichiometries) of atomically precise gold nanoclusters, which are opening up new exciting opportunities for both fundamental research and technological applications. In this review, we have summarized the recent progress in the research of thiolate (SR)-protected gold nanoclusters with a focus on the reported stable sizes and their optical absorption spectra. The crystallization of nanoclusters still remains challenging; nevertheless, a few more structures have been achieved since the earlier successes in Au102(SR)44, Au25(SR)18 and Au38(SR)24 nanoclusters, and the newly reported structures include Au20(SR)16, Au24(SR)20, Au28(SR)20, Au30S(SR)18, and Au36(SR)24. Phosphine-protected gold and thiolate-protected silver nanoclusters are also briefly discussed in this review. The reported gold nanocluster sizes serve as the basis for investigating their size dependent properties as well as the development of applications in catalysis, sensing, biological labelling, optics, etc. Future efforts will continue to address what stable sizes are existent, and more importantly, what factors determine their stability. Structural determination and theoretical simulations will help to gain deep insight into the structure-property relationships.
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Affiliation(s)
- Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, USA.
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362
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Yao Q, Yuan X, Yu Y, Yu Y, Xie J, Lee JY. Introducing Amphiphilicity to Noble Metal Nanoclusters via Phase-Transfer Driven Ion-Pairing Reaction. J Am Chem Soc 2015; 137:2128-36. [DOI: 10.1021/jacs.5b00090] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Qiaofeng Yao
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
| | - Xun Yuan
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
| | - Yong Yu
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
| | - Yue Yu
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
| | - Jianping Xie
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
| | - Jim Yang Lee
- Department of Chemical and
Biomolecular Engineering, National University of Singapore, 10 Kent
Ridge Crescent, Singapore 119260
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363
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Microwave-assisted synthesis of BSA-modified silver nanoparticles as a selective fluorescent probe for detection and cellular imaging of cadmium(II). Mikrochim Acta 2015. [DOI: 10.1007/s00604-014-1438-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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364
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Zhang XD, Chen J, Yang J, Wang JY, Shen X, Song SS, Wang H, He H, Wang X, Fan S, Sun YM, Guo M. Use of epidermal growth factor receptor antibody–gold cluster conjugates with good renal excretion in targeted cancer radiation treatment. J Mater Chem B 2015; 3:4735-4741. [DOI: 10.1039/c5tb00411j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
EGFR antibody–gold clusters were shown to improve the efficiency of radiation treatment and had good renal clearance in a mouse model.
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365
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Barcaro G, Sementa L, Fortunelli A, Stener M. Optical properties of nanoalloys. Phys Chem Chem Phys 2015; 17:27952-67. [DOI: 10.1039/c5cp00498e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Optical absorption spectra of bare (left) and monolayer-protected (right) metal nanoalloys.
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Affiliation(s)
| | - Luca Sementa
- CNR-ICCOM & IPCF
- Consiglio Nazionale delle Ricerche
- Pisa
- Italy
| | | | - Mauro Stener
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- Trieste
- Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali
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366
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Jia X, Li J, Zhang X, Wang E. Controlling the synthesis and assembly of fluorescent Au/Ag alloy nanoclusters. Chem Commun (Camb) 2015; 51:17417-9. [DOI: 10.1039/c5cc07841e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembly of water-soluble fluorescent thiolated Au/Ag alloy NCs into 1D nanostructures in water is demonstrated. Fluorescent Au/Ag alloy NCs with high stability were synthesized through galvanic replacement, starting from nonemissive and unstable AgNC precursors. Then a facile ultrasound method was used to induce a thiolate-driven self-assembly process.
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Affiliation(s)
- Xiaofang Jia
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Xiaowei Zhang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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367
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Mohanty JS, Baksi A, Lee H, Pradeep T. Noble metal clusters protected with mixed proteins exhibit intense photoluminescence. RSC Adv 2015. [DOI: 10.1039/c5ra06964e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Noble metal clusters in a mixed protein (BSA–Lyz) matrix lead to a better FRET and high fluorescence quantum yield.
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Affiliation(s)
- Jyoti Sarita Mohanty
- DST Unit of Nanoscience (DST UNS)
- Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
| | - Ananya Baksi
- DST Unit of Nanoscience (DST UNS)
- Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
| | - Haiwon Lee
- Department of Chemistry
- Institute of Nanoscience and Technology
- Hanyang University
- Seoul 133-791
- Korea
| | - T. Pradeep
- DST Unit of Nanoscience (DST UNS)
- Thematic Unit of Excellence (TUE)
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai – 600 036
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368
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Chen LY, Wang CW, Yuan Z, Chang HT. Fluorescent Gold Nanoclusters: Recent Advances in Sensing and Imaging. Anal Chem 2014; 87:216-29. [DOI: 10.1021/ac503636j] [Citation(s) in RCA: 547] [Impact Index Per Article: 54.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Li-Yi Chen
- Department
of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan
| | - Chia-Wei Wang
- Department
of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan
| | - Zhiqin Yuan
- Department
of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan
| | - Huan-Tsung Chang
- Department
of Chemistry, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei 106, Taiwan
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369
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Nishigaki JI, Koyasu K, Tsukuda T. Chemically Modified Gold Superatoms and Superatomic Molecules. CHEM REC 2014; 14:897-909. [DOI: 10.1002/tcr.201402011] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Jun-ichi Nishigaki
- Department of Chemistry; School of Science; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Kiichirou Koyasu
- Department of Chemistry; School of Science; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Tatsuya Tsukuda
- Department of Chemistry; School of Science; The University of Tokyo; 7-3-1 Hongo Bunkyo-ku Tokyo 113-0033 Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB); Kyoto University; Katsura Kyoto 615-8520 Japan
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370
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Tseng YT, Yuan Z, Yang YY, Huang CC, Chang HT. Photoluminescent gold nanodots: role of the accessing ligands. RSC Adv 2014. [DOI: 10.1039/c4ra04774e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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371
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Jia X, Li J, Wang E. Supramolecular self-assembly of morphology-dependent luminescent Ag nanoclusters. Chem Commun (Camb) 2014; 50:9565-8. [DOI: 10.1039/c4cc03913k] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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372
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Das A, Li T, Li G, Nobusada K, Zeng C, Rosi NL, Jin R. Crystal structure and electronic properties of a thiolate-protected Au24 nanocluster. NANOSCALE 2014; 6:6458-62. [PMID: 24817094 DOI: 10.1039/c4nr01350f] [Citation(s) in RCA: 172] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Solving the total structures of gold nanoclusters is of critical importance for understanding their electronic, optical and catalytic properties. Herein, we report the X-ray structure of a charge-neutral Au24(SCH2Ph-(t)Bu)20 nanocluster. This structure features a bi-tetrahedral Au8 kernel protected by four tetrameric staple-like motifs. Electronic structure analysis is further carried out and the optical absorption spectrum is interpreted. The Au24(SCH2Ph-(t)Bu)20, Au23(S-c-C6H11)16 and Au25(SCH2CH2Ph)18 nanoclusters constitute the first crystallographically characterized "trio".
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Affiliation(s)
- Anindita Das
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, USA.
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Dou X, Yuan X, Yao Q, Luo Z, Zheng K, Xie J. Facile synthesis of water-soluble Au25–xAgx nanoclusters protected by mono- and bi-thiolate ligands. Chem Commun (Camb) 2014; 50:7459-62. [DOI: 10.1039/c4cc02261k] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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