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Wang XY, Meng W, Xie HP, Song DN, Du MH, Chen JX, Braunstein P, Lang JP. Zwitterionic Thiolate-Protected Ag 22(0/I) and Ag 20(I) Clusters: Assembly, Structural Characterization, and Antibacterial Activity. Inorg Chem 2024; 63:13014-13021. [PMID: 38943593 DOI: 10.1021/acs.inorgchem.4c01735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
Zwitterionic thiolate ligands have the potential to introduce novel assembly modes and functions for noble metal clusters. However, their utilization in the synthesis of silver clusters remains understudied, particularly for the clusters containing reductive Ag(0) species. In this article, we report the first synthesis of a mixed-valence silver(0/I) cluster protected by zwitterionic Tab as thiolate ligands (Tab = 4-(trimethylammonio)benzenethiolate), denoted as [Ag22(Tab)24](PF6)20·16CH3OH·6Et2O (Ag22·16CH3OH·6Et2O), alongside an Ag(I) cluster [Ag20(Tab)12(PhCOO)10(MeCN)2(H2O)](PF6)10·11MeCN (Ag20·11MeCN). Ag22 has a distinct hierarchical supratetrahedral structure with a central {Ag6} kernel surrounded by four [Ag4(Tab)6]4+ units. High-resolution electrospray ionization mass spectra demonstrate that Ag22 has two free electrons, indicating a superatomic core. Ag20 has a drum-like [Ag12(Tab)6(PhCOO)6(H2O)]6+ inner core capped by two tetrahedral-like [Ag4(Tab)3(PhCOO)2(MeCN)]2+ units. Ag20 can be transformed into Ag22 after its reaction with NaBH4 in solution. Antibacterial measurements reveal that Ag22 has a significantly lower minimum inhibitory concentration than that of the Ag20 cluster. This work not only extends the stabilization of silver(0/I) clusters to neutral thiol ligands but also offers new materials for the development of novel antibacterial materials.
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Affiliation(s)
- Xin-Yao Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Wei Meng
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Hong-Ping Xie
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Dan-Na Song
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Ming-Hao Du
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Jin-Xiang Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, Guangzhou Key Laboratory of Drug Research for Emerging Virus Prevention and Treatment, NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Pierre Braunstein
- Université de Strasbourg - CNRS, Institut de Chimie (UMR 7177 CNRS), 4 rue Blaise Pascal, 67081 Strasbourg, France
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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2
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Knoppe S, Muñoz-Castro A. Intermediate Silver Doping of Au 25(SR) 18: Variation of Electronic, Optical, and Chiroptical Properties along Au 25-xAg x(SH) 18- ( x = 0-12) Stoichiometry from DFT Calculations. Inorg Chem 2023; 62:7079-7086. [PMID: 37104868 DOI: 10.1021/acs.inorgchem.3c00485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
The silver analogue of the prominent Au25(SR)18 nanocluster reveals the possibility of finding "gold"-like behavior despite their different nature, in addition to the common features among molecular AgNP. Herein, we explore the effect of successive additions of silver atoms reaching an intermediate Ag/Au doping ratio where the parent gold cluster exhibits properties from both elements. Our results show a more favorable situation as the Ag/Au ratio increases along the Au25-xAgx(SH)18- (x = 0-12) clusters, with structural distortions mainly centered at the ligand-protected shell. The calculated optical spectrum shows that from the Au19Ag6 species, a plasmon-like peak appears along species with a doping ratio above 25%, where all the silver atoms are located within the M12 icosahedron. In addition, the chiral properties were explored, showing mild optical activity from the calculated circular dichroism spectra due to the distorted ligand-shell avoiding a centrosymmetric structure. Thus, an intermediate doping ratio ascribed to a specific structural layer can recover inherent properties to both elements in the binary Au25-xAgx(SH)18- series, suggesting the possibility of having clusters with dual properties at a certain degree of element exchange. This can be useful for further exploration theoretically and synthetically toward different and larger-nuclearity clusters.
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Affiliation(s)
- Stefan Knoppe
- Institut für Physikalische Chemie, Universität Stuttgart, Pfaffenwaldring 55, Stuttgart, Baden-Wurttemberg 70569, Germany
| | - Alvaro Muñoz-Castro
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago 8420524, Chile
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3
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Korath Shivan S, Maier A, Scheele M. Emergent properties in supercrystals of atomically precise nanoclusters and colloidal nanocrystals. Chem Commun (Camb) 2022; 58:6998-7017. [DOI: 10.1039/d2cc00778a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We provide a comprehensive account of the optical, electrical and mechanical properties that result from the self-assembly of colloidal nanocrystals or atomically precise nanoclusters into crystalline arrays with long-range order....
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4
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Gharib M, Galchenko M, Klinke C, Parak WJ, Chakraborty I. Mechanistic insights and selected synthetic routes of atomically precise metal nanoclusters. NANO SELECT 2021. [DOI: 10.1002/nano.202000210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Mustafa Gharib
- Fachbereich Physik Center for Hybrid Nanostructures (CHyN) Universität Hamburg Hamburg Germany
- Radiation Biology Department Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | | | - Christian Klinke
- Institute of Physics University of Rostock Albert‐Einstein‐Strasse 23 Rostock Germany
- Department of Chemistry Swansea University – Singleton Park Swansea UK
| | - Wolfgang J. Parak
- Fachbereich Physik Center for Hybrid Nanostructures (CHyN) Universität Hamburg Hamburg Germany
- CIC Biomagune San Sebastian Spain
| | - Indranath Chakraborty
- Fachbereich Physik Center for Hybrid Nanostructures (CHyN) Universität Hamburg Hamburg Germany
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5
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Chitosan-stabilized silver nanoclusters with luminescent, photothermal and antibacterial properties. Carbohydr Polym 2020; 250:116973. [PMID: 33049902 DOI: 10.1016/j.carbpol.2020.116973] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/04/2020] [Accepted: 08/18/2020] [Indexed: 11/23/2022]
Abstract
The aim of this paper is to achieve in situ photochemical synthesis of silver nanoclusters (AgNCs) stabilized by the multiple-amine groups of chitosan (Ch@AgNCs) with luminescent and photothermal properties. Ch@AgNCs were obtained by applying a fast and simple methodology previously described by our group. Direct functionalization of AgNCs with chitosan template provided new nanohybrids directly in water solution, both in the presence or absence of oxygen. The formation of hybrid AgNCs could be monitored by the rapid increase of the absorption and emission maximum band with light irradiation time. New Ch@AgNCs not only present photoluminescent properties but also photothermal properties when irradiated with near infrared light (NIR), transducing efficiently NIR into heat and increasing the temperature of the medium up to 23 °C. The chitosan polymeric shell associated to AgNCs works as a protective support stabilizing the metal cores, facilitating the storage of nanohybrids and preserving luminescent, photothermal and bactericide properties.
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6
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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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7
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Muhammed MAH, Cruz LK, Emwas A, El‐Zohry AM, Moosa B, Mohammed OF, Khashab NM. Pillar[5]arene‐Stabilized Silver Nanoclusters: Extraordinary Stability and Luminescence Enhancement Induced by Host–Guest Interactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906740] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Madathumpady Abubaker Habeeb Muhammed
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Laila Khalil Cruz
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Abdul‐Hamid Emwas
- Core Labs King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Ahmed M. El‐Zohry
- Division of Physical Science and Engineering (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Basem Moosa
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Omar F. Mohammed
- Division of Physical Science and Engineering (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Niveen M. Khashab
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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8
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Muhammed MAH, Cruz LK, Emwas A, El‐Zohry AM, Moosa B, Mohammed OF, Khashab NM. Pillar[5]arene‐Stabilized Silver Nanoclusters: Extraordinary Stability and Luminescence Enhancement Induced by Host–Guest Interactions. Angew Chem Int Ed Engl 2019; 58:15665-15670. [DOI: 10.1002/anie.201906740] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/22/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Madathumpady Abubaker Habeeb Muhammed
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Laila Khalil Cruz
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Abdul‐Hamid Emwas
- Core Labs King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Ahmed M. El‐Zohry
- Division of Physical Science and Engineering (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Basem Moosa
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Omar F. Mohammed
- Division of Physical Science and Engineering (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Niveen M. Khashab
- Smart Hybrid Materials Laboratory (SHMs) Advanced Membranes and Porous Materials Center King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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9
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Bonačić-Koutecký V, Antoine R. Enhanced two-photon absorption of ligated silver and gold nanoclusters: theoretical and experimental assessments. NANOSCALE 2019; 11:12436-12448. [PMID: 31162509 DOI: 10.1039/c9nr01826c] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ligated silver and gold nanoclusters belonging to a non-scalable size regime with molecular-like discrete electronic states represent an emerging class of extremely interesting optical materials. Nonlinear optical (NLO) characteristics of such quantum clusters have revealed remarkable features. The two-photon absorption (TPA) cross section of ligated noble metal nanoclusters is several orders of magnitude larger than that of commercially-available dyes. Several such case studies on NLO properties of ligated silver and gold nanoclusters have been reported, making them promising candidates for various bio-imaging techniques such as multiphoton-excited fluorescence microscopy. However, the structure-property relationship is of great importance and needs to be properly addressed in order to design new nonlinear optical materials. Using small ligated silver nanoclusters as test systems, we illustrate how theoretical approaches together with experimental findings can contribute to the understanding of structure-property relationships that might ultimately guide nanocluster synthesis.
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Affiliation(s)
- Vlasta Bonačić-Koutecký
- Centre of excellence for Science and Technology-Integration of Mediterranean region (STIM) at the Interdisciplinary Centre for Advanced Sciences and Technology (ICAST), University of Split, Poljička cesta 35, HR-21000 Split, Republic of Croatia and Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany.
| | - Rodolphe Antoine
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, Lyon, France.
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10
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Anomalous phonon relaxation in Au 333(SR) 79 nanoparticles with nascent plasmons. Proc Natl Acad Sci U S A 2019; 116:13215-13220. [PMID: 31209027 DOI: 10.1073/pnas.1904337116] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Research on plasmons of gold nanoparticles has gained broad interest in nanoscience. However, ultrasmall sizes near the metal-to-nonmetal transition regime have not been explored until recently due to major synthetic difficulties. Herein, intriguing electron dynamics in this size regime is observed in atomically precise Au333(SR)79 nanoparticles. Femtosecond transient-absorption spectroscopy reveals an unprecedented relaxation process of 4-5 ps-a fast phonon-phonon relaxation process, together with electron-phonon coupling (∼1 ps) and normal phonon-phonon coupling (>100 ps) processes. Three types of -R capped Au333(SR)79 all exhibit two plasmon-bleaching signals independent of the -R group as well as solvent, indicating plasmon splitting and quantum effect in the ultrasmall core of Au333(SR)79 This work is expected to stimulate future work on the transition-size regime of nanometals and discovery of behavior of nascent plasmons.
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11
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Yang JK, Hwang IJ, Cha MG, Kim HI, Yim D, Jeong DH, Lee YS, Kim JH. Reaction Kinetics-Mediated Control over Silver Nanogap Shells as Surface-Enhanced Raman Scattering Nanoprobes for Detection of Alzheimer's Disease Biomarkers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900613. [PMID: 30957959 DOI: 10.1002/smll.201900613] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/20/2019] [Indexed: 06/09/2023]
Abstract
It is very challenging to accurately quantify the amounts of amyloid peptides Aβ40 and Aβ42, which are Alzheimer's disease (AD) biomarkers, in blood owing to their low levels. This has driven the development of sensitive and noninvasive sensing methods for the early diagnosis of AD. Here, an approach for the synthesis of Ag nanogap shells (AgNGSs) is reported as surface-enhanced Raman scattering (SERS) colloidal nanoprobes for the sensitive, selective, and multiplexed detection of Aβ40 and Aβ42 in blood. Raman label chemicals used for SERS signal generation modulate the reaction rate for AgNGSs production through the formation of an Ag-thiolate lamella structure, enabling the control of nanogaps at one nanometer resolution. The AgNGSs embedded with the Raman label chemicals emit their unique SERS signals with a huge intensity enhancement of up to 107 and long-term stability. The AgNGS nanoprobes, conjugated with an antibody specific to Aβ40 or Aβ42, are able to detect these AD biomarkers in a multiplexed manner in human serum based on the AgNGS SERS signals. Detection is possible for amounts as low as 0.25 pg mL-1 . The AgNGS nanoprobe-based sandwich assay has a detection dynamic range two orders of magnitude wider than that of a conventional enzyme-linked immunosorbent assay.
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Affiliation(s)
- Jin-Kyoung Yang
- Department of Chemical Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
| | - In-Jun Hwang
- Department of Chemical Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Myeong Geun Cha
- Department of Chemistry Education, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Hye-In Kim
- Department of Chemical Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
| | - DaBin Yim
- Department of Chemical Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Jong-Ho Kim
- Department of Chemical Engineering, Hanyang University, Ansan, 426-791, Republic of Korea
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12
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Niihori Y, Yoshida K, Hossain S, Kurashige W, Negishi Y. Deepening the Understanding of Thiolate-Protected Metal Clusters Using High-Performance Liquid Chromatography. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180357] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yoshiki Niihori
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kana Yoshida
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Sakiat Hossain
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Wataru Kurashige
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, 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, 1-3 Kagurazaka, 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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13
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Bhunia S, Kumar S, Purkayastha P. Application of Photoinduced Electron Transfer with Copper Nanoclusters toward Finding Characteristics of Protein Pockets. ACS OMEGA 2019; 4:2523-2532. [PMID: 31459491 PMCID: PMC6648241 DOI: 10.1021/acsomega.8b03213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 01/18/2019] [Indexed: 05/30/2023]
Abstract
Proteins possess various domains and subdomain pockets with varying hydrophobicity/hydrophilicity. The local polarities of these domains play a major role in oxidation-reduction-based biological processes. Herein, we have synthesized ultrasmall fluorescent copper nanoclusters (Cu NCs) that are directed to bind to the different domain-specific pockets of the model protein bovine serum albumins (BSA). Potential electron acceptors, methyl viologen (MV) derivatives, were chosen such that they specifically reach the various domains following their hydrophobicity/hydrophilicity. Here, we have used MV2+, HMV+, and DHMV2+, possessing hydrophilic, intermediate, and hydrophobic specificities. Being electron acceptors, these derivatives draw electrons from the Cu NCs through photoinduced electron transfer (PET). The rate of PET varies at the different domains of BSA based on the local environment which has been analyzed. Here, PET is confirmed by steady state as well as time-resolved fluorescence spectroscopy. This study would provide a measurable way to identify the location of the different domains of a protein which is scalable by changing the superficial conditions without unfolding the protein.
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Affiliation(s)
- Soumyadip Bhunia
- Department
of Chemical Sciences and Center for Advanced Functional
Materials (CAFM), Indian Institute of Chemical
Sciences (IISER) Kolkata, Mohanpur 741246, West Bengal, India
| | - Sumit Kumar
- Department
of Chemical Sciences and Center for Advanced Functional
Materials (CAFM), Indian Institute of Chemical
Sciences (IISER) Kolkata, Mohanpur 741246, West Bengal, India
| | - Pradipta Purkayastha
- Department
of Chemical Sciences and Center for Advanced Functional
Materials (CAFM), Indian Institute of Chemical
Sciences (IISER) Kolkata, Mohanpur 741246, West Bengal, India
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14
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van der Linden M, van Bunningen AJ, Delgado-Jaime MU, Detlefs B, Glatzel P, Longo A, de Groot FMF. Insights into the Synthesis Mechanism of Ag 29 Nanoclusters. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:28351-28361. [PMID: 30774744 PMCID: PMC6369667 DOI: 10.1021/acs.jpcc.8b09360] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/02/2018] [Indexed: 06/09/2023]
Abstract
The current understanding of the synthesis mechanisms of noble metal clusters is limited, in particular for Ag clusters. Here, we present a detailed investigation into the synthesis process of atomically monodisperse Ag29 clusters, prepared via reduction of AgNO3 in the presence of dithiolate ligands. Using optical spectroscopy, mass spectrometry, and X-ray spectroscopy, it was determined that the synthesis involves a rapid nucleation and growth to species with up to a few hundred Ag atoms. From these larger species, Ag29 clusters are formed and their concentration increases steadily over time. Oxygen plays an important role in the etching of large particles to Ag29. No other stable Ag cluster species are observed at any point during the synthesis.
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Affiliation(s)
- Marte van der Linden
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitslaan 99, 3584 CG Utrecht, The Netherlands
- European
Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Arnoldus J. van Bunningen
- Condensed
Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, Princetonplein 1, 3584 CC Utrecht, The Netherlands
| | - Mario U. Delgado-Jaime
- Department
of Chemistry, University of Guadalajara, Blvd. Marcelino Garcia Barragán
1421, 44430 Guadalajara, Mexico
| | - Blanka Detlefs
- European
Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Pieter Glatzel
- European
Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Alessandro Longo
- Netherlands
Organization for Scientific Research at ESRF, BP 220, 38043 Grenoble Cedex 9, France
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, UOS Palermo, Via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Frank M. F. de Groot
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitslaan 99, 3584 CG Utrecht, The Netherlands
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15
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Jana J, Aditya T, Negishi Y, Pal T. Solvent Polarity-Dependent Behavior of Aliphatic Thiols and Amines toward Intriguingly Fluorescent AuAgGSH Assembly. ACS OMEGA 2017; 2:8086-8098. [PMID: 31457357 PMCID: PMC6645147 DOI: 10.1021/acsomega.7b01560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/02/2017] [Indexed: 06/10/2023]
Abstract
Highly stable fluorescent glutathione (GSH)-protected AuAg assembly has been synthesized in water under UV irradiation. The assembly is composed of small Ag2/Ag3 clusters. These clusters gain stability through synergistic interaction with Au(I) present within the assembly. This makes the overall assembly fluorescent. Here, GSH acts as a reducing as well as stabilizing agent. The assembly is so robust that it can be vacuum-dried to solid particles. The as-obtained solid is dispersible in nonaqueous solvents. The interaction between solvent and the assembly provides stability to the assembly, and the assembly shows fluorescence. It is interesting to see that the behavior of long-chain aliphatic thiols or amines toward the fluorescent assembly is altogether a different phenomenon in aqueous and nonaqueous mediums. The assembly gets ruptured in water due to direct interaction with long-chain thiols or amines, whereas in nonaqueous medium, solvation of added thiols or amines becomes pronounced, which hinders the interaction of solvent with the assembly. However, the fluorescence of the assembly is always quenched with thiols or amines no matter what the solvent medium is. In aqueous medium, the fluorescence quenching by aliphatic thiol or amine becomes pronounced with successive decrease in their chain length, whereas in nonaqueous medium, the trend is just reversed with chain length. The reasons behind such an interesting reversal of fluorescence quenching in aqueous and nonaqueous solvents have been discussed explicitly. Again, in organic solvents, thiol or amine-induced quenched fluorescence is selectively recovered by Pb(II) ion without any alteration of excitation and emission maxima. This phenomenon is not observed in water because of the ruptured fluorescent assembly. The fluorescence recovery by Pb(II) and unaltered emission peak only in nonaqueous solvent unequivocally prove the engagement of Pb(II) with thiols or amines, which in turn revert the original solvent-supported stabilization of the assembly.
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Affiliation(s)
- Jayasmita Jana
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Teresa Aditya
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Yuichi Negishi
- Department
of Applied Chemistry, Tokyo University of
Science, Tokyo 1628601, Japan
| | - Tarasankar Pal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
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16
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Chakraborty I, Pradeep T. Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles. Chem Rev 2017; 117:8208-8271. [DOI: 10.1021/acs.chemrev.6b00769] [Citation(s) in RCA: 1305] [Impact Index Per Article: 186.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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17
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Jeseentharani V, Pugazhenthiran N, Mathew A, Chakraborty I, Baksi A, Ghosh J, Jash M, Anjusree GS, Deepak TG, Nair AS, Pradeep T. Atomically Precise Noble Metal Clusters Harvest Visible Light to Produce Energy. ChemistrySelect 2017. [DOI: 10.1002/slct.201601730] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- V. Jeseentharani
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - N. Pugazhenthiran
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Ammu Mathew
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Ananya Baksi
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Jyotirmoy Ghosh
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Madhuri Jash
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - G. S. Anjusree
- Amrita Centre for Nanosciences and Molecular Medicine; Amrita Institute of Medical Sciences (AIMS); Ponekkara, AIMS PO Kochi 682041 India
| | - T. G. Deepak
- Amrita Centre for Nanosciences and Molecular Medicine; Amrita Institute of Medical Sciences (AIMS); Ponekkara, AIMS PO Kochi 682041 India
| | - A. Sreekumaran Nair
- Amrita Centre for Nanosciences and Molecular Medicine; Amrita Institute of Medical Sciences (AIMS); Ponekkara, AIMS PO Kochi 682041 India
| | - T. Pradeep
- DST Unit of Nanoscience (DST UNS) and Thermatic Unit of Excellence; Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
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18
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Zhang MQ, Zhao YX, Liu QY, Li XN, He SG. Does Each Atom Count in the Reactivity of Vanadia Nanoclusters? J Am Chem Soc 2016; 139:342-347. [DOI: 10.1021/jacs.6b10839] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mei-Qi Zhang
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yan-Xia Zhao
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Qing-Yu Liu
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiao-Na Li
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Sheng-Gui He
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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19
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[Ag67(SPhMe2)32(PPh3)8]3+: Synthesis, Total Structure, and Optical Properties of a Large Box-Shaped Silver Nanocluster. J Am Chem Soc 2016; 138:14727-14732. [DOI: 10.1021/jacs.6b09007] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Sangsuwan A, Kawasaki H, Matsumura Y, Iwasaki Y. Antimicrobial Silver Nanoclusters Bearing Biocompatible Phosphorylcholine-Based Zwitterionic Protection. Bioconjug Chem 2016; 27:2527-2533. [DOI: 10.1021/acs.bioconjchem.6b00455] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Arunee Sangsuwan
- Graduate School of Science and Engineering, ‡Department of Chemistry
and Materials,
Faculty of Chemistry, Materials and Bioengineering, §Department of Life Science and Biotechnology,
Faculty of Chemistry, Materials and Bioengineering, and ∥ORDIST, Kansai University, 3-3-35
Yamate-cho, Osaka, Suita-shi 564-8680, Japan
| | - Hideya Kawasaki
- Graduate School of Science and Engineering, ‡Department of Chemistry
and Materials,
Faculty of Chemistry, Materials and Bioengineering, §Department of Life Science and Biotechnology,
Faculty of Chemistry, Materials and Bioengineering, and ∥ORDIST, Kansai University, 3-3-35
Yamate-cho, Osaka, Suita-shi 564-8680, Japan
| | - Yoshinobu Matsumura
- Graduate School of Science and Engineering, ‡Department of Chemistry
and Materials,
Faculty of Chemistry, Materials and Bioengineering, §Department of Life Science and Biotechnology,
Faculty of Chemistry, Materials and Bioengineering, and ∥ORDIST, Kansai University, 3-3-35
Yamate-cho, Osaka, Suita-shi 564-8680, Japan
| | - Yasuhiko Iwasaki
- Graduate School of Science and Engineering, ‡Department of Chemistry
and Materials,
Faculty of Chemistry, Materials and Bioengineering, §Department of Life Science and Biotechnology,
Faculty of Chemistry, Materials and Bioengineering, and ∥ORDIST, Kansai University, 3-3-35
Yamate-cho, Osaka, Suita-shi 564-8680, Japan
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21
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Bhardwaj S, Itteboina R, Sau TK. Observing Ultra-Small Gold Cluster to Plasmonic Nanoparticle Evolution in a One-Pot Aqueous Synthesis. ChemistrySelect 2016. [DOI: 10.1002/slct.201600778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shweta Bhardwaj
- Centre for Computational Natural Sciences and Bioinformatics; International Institute of Information Technology-Hyderabad; Gachibowli Hyderabad - 500032 India
| | - Ramakrishna Itteboina
- Centre for Computational Natural Sciences and Bioinformatics; International Institute of Information Technology-Hyderabad; Gachibowli Hyderabad - 500032 India
| | - Tapan K. Sau
- Centre for Computational Natural Sciences and Bioinformatics; International Institute of Information Technology-Hyderabad; Gachibowli Hyderabad - 500032 India
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22
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Jin R, Zhao S, Xing Y, Jin R. All-thiolate-protected silver and silver-rich alloy nanoclusters with atomic precision: stable sizes, structural characterization and optical properties. CrystEngComm 2016. [DOI: 10.1039/c5ce02494c] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Mancera LA, Benoit DM. Vibrational anharmonicity of small gold and silver clusters using the VSCF method. Phys Chem Chem Phys 2016; 18:529-49. [DOI: 10.1039/c5cp05283a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We study the vibrational spectra of small neutral gold (Au2–Au10) and silver (Ag2–Au5) clusters using the vibrational self-consistent field method (VSCF) in order to account for anharmonicity.
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Affiliation(s)
- Luis A. Mancera
- Institute of Theoretical Chemistry
- University of Ulm
- D-89069 Ulm
- Germany
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24
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Tominaga C, Hasegawa H, Yamashita K, Arakawa R, Kawasaki H. UV photo-mediated size-focusing synthesis of silver nanoclusters. RSC Adv 2016. [DOI: 10.1039/c6ra10892j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In this work, we first report the photo-mediated size-focusing synthesis of glutathione (SG)-protected atomically precise Ag nanoclusters (Ag NCs).
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Affiliation(s)
- C. Tominaga
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - H. Hasegawa
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - K. Yamashita
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - R. Arakawa
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
| | - H. Kawasaki
- Faculty of Chemistry, Materials and Bioengineering
- Kansai University
- Suita 564-8680
- Japan
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25
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Sarkar S, Chakraborty I, Panwar MK, Pradeep T. Isolation and Tandem Mass Spectrometric Identification of a Stable Monolayer Protected Silver-Palladium Alloy Cluster. J Phys Chem Lett 2014; 5:3757-3762. [PMID: 26278746 DOI: 10.1021/jz5019509] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A selenolate-protected Ag-Pd alloy cluster was synthesized using a one-pot solution-phase route. The crude product upon chromatographic analyses under optimized conditions gave three distinct clusters with unique optical features. One of these exhibits a molecular peak centered at m/z 2839, in its negative ion mass spectrum assigned to Ag5Pd4(SePh)12(-), having an exact match with the corresponding calculated spectrum. Tandem mass spectrometry of the molecular ion peak up to MS(9) was performed. Complex isotope distributions in each of the mass peaks confirmed the alloy composition. We find the Ag3Pd3(-) core to be highly stable. The composition was further supported by scanning electron microscopy, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy.
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Affiliation(s)
- Sreya Sarkar
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - Manoj Kumar Panwar
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
| | - T Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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26
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Chakraborty I, Pradeep T. Reversible formation of Ag₄₄ from selenolates. NANOSCALE 2014; 6:14190-14194. [PMID: 25342431 DOI: 10.1039/c4nr03267e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The cluster Ag₄₄SePh₃₀, originally prepared from silver selenolate, upon oxidative decomposition by H₂O₂ gives the same cluster back, in an apparently reversible synthesis. Such an unusual phenomenon was not seen for the corresponding thiolate analogues. From several characterization studies such as mass spectrometry, Raman spectroscopy, etc., it has been confirmed that the degraded and as-synthesized selenolates are the same in nature, which leads to the reversible process. The possibility of making clusters from the degraded material makes cluster synthesis economical. This observation makes one to consider cluster synthesis to be a reversible chemical process, at least for selenolates.
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Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India.
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27
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Zheng K, Yuan X, Goswami N, Zhang Q, Xie J. Recent advances in the synthesis, characterization, and biomedical applications of ultrasmall thiolated silver nanoclusters. RSC Adv 2014. [DOI: 10.1039/c4ra12054j] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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28
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Kaware V, Joshi K. Scaling up the shape: A novel growth pattern of gallium clusters. J Chem Phys 2014; 141:054308. [DOI: 10.1063/1.4891867] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Vaibhav Kaware
- Department of Physics, University of Pune, Pune 411007, India
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Kavita Joshi
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
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29
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Chakraborty I, Mahata S, Mitra A, De G, Pradeep T. Controlled synthesis and characterization of the elusive thiolated Ag55cluster. Dalton Trans 2014; 43:17904-7. [DOI: 10.1039/c4dt02476a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A stable, Ag55cluster protected with 4-(tert-butyl)benzyl mercaptan (BBSH) was synthesized through a solid state route.
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Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
| | - Shrabani Mahata
- National Institute of Science and Technology
- Berhampur, India
| | - Anuradha Mitra
- CSIR-Central Glass and Ceramics Research Institute
- Kolkata, India
| | - Goutam De
- CSIR-Central Glass and Ceramics Research Institute
- Kolkata, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600 036, India
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30
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Zhou B, Jin X, Li J, Xu W, Liu S, Li Y, Li B. Vacuum-assisted layer-by-layer electrospun membranes: antibacterial and antioxidative applications. RSC Adv 2014. [DOI: 10.1039/c4ra09548k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Layer-by-layer assembled films have been exploited for functional materials.
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Affiliation(s)
- Bin Zhou
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
| | - Xing Jin
- Department of Clinical Laboratory
- Xi'an Gaoxin Hospital
- Xi'an 710075, China
| | - Jing Li
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
| | - Wei Xu
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
| | - Shilin Liu
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
| | - Yan Li
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
| | - Bin Li
- College of Food Science and Technology
- Huazhong Agriculture University
- Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University)
- Ministry of Education
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