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Chakraborty S, Kolay S, Patra A. Synthesis of atomically precise Ag 16 nanoclusters and investigating solvent-dependent ultrafast relaxation dynamics. NANOSCALE 2024. [PMID: 39189333 DOI: 10.1039/d4nr02392g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
In this article, the main focus is to employ a new synthetic strategy to prepare atomically precise Ag nanoclusters (NCs) and unveil the critical role played by the solvents in the excited state dynamics of Ag NCs. The compositional analysis confirms the formula of the nanoclusters as Ag16(PDT)8(PPh3)4 (Ag-PDT NCs). These NCs showed a sharp absorption band at 525 nm and a comparatively broad absorption band at 633 nm. The emission maximum was 630 nm with a quantum yield (QY) of 0.23%. Three-component relaxation dynamics was retrieved from global analysis and described as core relaxation (664 fs), core-to-surface state relaxation (500 ps), and ground state relaxation (>1 ns) for Ag NCs in the DCM solvent. The time constants are slightly higher at 1.25 ps, 624.25 ps, and >1 ns for Ag NCs in the DMF solvent because of the less effective charge separation. The high QY in DMF follows this low charge separation (0.23% vs. 0.63%). The straight-chain dithiol capping agent (with lower electron density than an electron-rich aromatic ring) is mainly responsible for this less effective charge separation. Finding the pivotal role of the solvent in NC chemistry will help to characterize it thoroughly and produce a strategy for precise applications in various fields.
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Affiliation(s)
- Sikta Chakraborty
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
| | - Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India.
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
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2
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Borah B, Sharma R, Sharma PK, Barman AK. Novel 2-mercaptobenzothiazole and 2-mercaptobenzimidazole-derived Ag 16 and Ag 18 nanoclusters: synthesis and optical properties. NANOSCALE 2024; 16:14844-14852. [PMID: 39034676 DOI: 10.1039/d4nr01606h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Silver and gold nanoclusters are promising nanomaterials for various applications such as sensing, catalysis, and bioimaging. However, their synthetic control and repeatability, and determination of their structures are highly complicated. Only a handful of crystal structures of silver nanoclusters (AgNCs) have been reported, while structures of a few others have been reported with the help of mass spectrometry. We synthesized two AgNCs, viz., Ag-MBTNC (Ag16 cluster) and Ag-MBINC (Ag18 cluster) respectively stabilized by 2-mercaptobenzothiazole (2-MBT) and 2-mercaptobenzimidazole (2-MBI) with excellent repeatability; determined their composition and plausible structures using XPS, TGA and MALDI-TOF mass spectrometry; and compared their optical properties. Interestingly, Ag-MBTNC is fluorescent while Ag-MBINC is not, although these are synthesized using stabilizing ligands that have difference in only one atom. The structural features of the clusters are found to be similar but they have contrasting optical behaviours due to the effect of one S atom (in 2-MBT) in place of one N atom (in 2-MBI).
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Affiliation(s)
- Bedanta Borah
- Department of Chemistry, Cotton University, Panbazar, Guwahati, Assam, 781001, India.
| | - Rohan Sharma
- Department of Chemistry, Cotton University, Panbazar, Guwahati, Assam, 781001, India.
| | - Pankaz K Sharma
- Department of Chemistry, Cotton University, Panbazar, Guwahati, Assam, 781001, India.
| | - Apurba Kr Barman
- Department of Chemistry, Cotton University, Panbazar, Guwahati, Assam, 781001, India.
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3
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Mukhopadhyay A, Sahoo SR, Mahata S, Goswami N. Strategic framework for harnessing luminescent metal nanocluster assemblies in biosensing applications. Anal Bioanal Chem 2024; 416:3963-3974. [PMID: 38814345 DOI: 10.1007/s00216-024-05353-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/09/2024] [Accepted: 05/17/2024] [Indexed: 05/31/2024]
Abstract
The distinctive physicochemical attributes of ultra-small metal nanoclusters (MNCs) resembling those of molecules make them versatile constituents for self-assembled frameworks. This critical review scrutinizes the influence of assembly on the photoluminescence (PL) properties of MNCs and investigates their utility in biosensing applications. The investigation is initiated with an assessment of the shift from individual MNCs to assemblies and its repercussions on PL efficacy. Subsequently, two distinct biosensing modalities are explored: assembly-driven detection mechanisms and detection predicated on structural modifications in assembled MNCs. Through meticulous examination, we underscore the potential of self-assembly methodologies in tailoring the PL behavior of MNCs for the detection of diverse biological analytes and diseases.
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Affiliation(s)
- Arun Mukhopadhyay
- CSIR-Institute of Minerals and Materials Technology, Acharya Vihar, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research, Ghaziabad, 201 002, India
| | - Satya Ranjan Sahoo
- CSIR-Institute of Minerals and Materials Technology, Acharya Vihar, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research, Ghaziabad, 201 002, India
| | - Sukhendu Mahata
- CSIR-Institute of Minerals and Materials Technology, Acharya Vihar, Bhubaneswar, 751013, India
- Academy of Scientific & Innovative Research, Ghaziabad, 201 002, India
| | - Nirmal Goswami
- CSIR-Institute of Minerals and Materials Technology, Acharya Vihar, Bhubaneswar, 751013, India.
- Academy of Scientific & Innovative Research, Ghaziabad, 201 002, India.
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Chakraborty S, Kolay S, Maity S, Patra A. Copper Nanoclusters as Multienzymes Mimic Activities of Oxidase and Ascorbic Acid Oxidase in the Presence of Imidazole. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:317-324. [PMID: 38103254 DOI: 10.1021/acs.langmuir.3c02570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Artificial nanoenzymes based on metal nanoclusters have received great attention for multienzyme activities nowadays. In this work, pepsin-capped copper NCs (Cu-Pep NCs) are used as oxidase, ascorbic acid oxidase (AAO), and peroxidase mimics, and their activities are enhanced by the introduction of imidazole. The oxidase activity increased almost 7.5-fold, while 5-fold and 2-fold increases were observed for the peroxidase and AAO-like activity, respectively. The enhanced radical formation in the presence of imidazole moieties facilitates the enzymatic activity of the Cu-Pep-NCs/Imid system. This work describes the different enzymatic activities of the NCs, paving a new way for artificial nanoenzymes having enhanced activities.
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Affiliation(s)
- Sikta Chakraborty
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
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5
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Bain D, Russier-Antoine I, Yuan H, Kolay S, Maclot S, Moulin C, Salmon E, Brevet PF, Pniakowska A, Olesiak-Bańska J, Antoine R. Solvent-Induced Aggregation of Self-Assembled Copper-Cysteine Nanoparticles Reacted with Glutathione: Enhancing Linear and Nonlinear Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16554-16561. [PMID: 37947385 DOI: 10.1021/acs.langmuir.3c02526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Copper-thiolate self-assembly nanostructures are a unique class of nanomaterials because of their interesting properties such as hierarchical structures, luminescence, and large nonlinear optical efficiency. Herein, we synthesized biomolecule cysteine (Cys) and glutathione (GSH) capped sub-100 nm self-assembly nanoparticles (Cu-Cys-GSH NPs) with red fluorescence. The as-synthesized NPs show high emission enhancement in the presence of ethanol, caused by the aggregation-induced emission. We correlated the structure and optical properties of Cu-Cys-GSH NPs by measuring the mass, morphology, and surface charge as well as their two-photon excited fluorescence cross-section (σ2PEPL), two-photon absorption cross-section (σTPA) and first hyperpolarizability (β) of Cu-Cys-GSH NPs in water and water-ethanol using near-infrared wavelength. We found a high β value as (77 ± 10) × 10-28 esu (in water) compared to the reference medium water. The estimated values of σ2PEPL and σTPA are found to be (13 ± 2) GM and (1.4 ± 0.2) × 104 GM, respectively. We hope our investigations of linear and nonlinear optical properties of copper-thiolate self-assemblies in water and its solvent-induced aggregates will open up new possibilities in designing self-assembled systems for many applications including sensing, drug delivery, and catalysis.
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Affiliation(s)
- Dipankar Bain
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Isabelle Russier-Antoine
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Hao Yuan
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Sarita Kolay
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Sylvain Maclot
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Christophe Moulin
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Estelle Salmon
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Pierre-François Brevet
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
| | - Anna Pniakowska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wrocław 50-370, Poland
| | - Joanna Olesiak-Bańska
- Institute of Advanced Materials, Wroclaw University of Science and Technology, Wrocław 50-370, Poland
| | - Rodolphe Antoine
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, Lyon F-69622, France
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Arima D, Mitsui M. Structurally Flexible Au-Cu Alloy Nanoclusters Enabling Efficient Triplet Sensitization and Photon Upconversion. J Am Chem Soc 2023; 145:6994-7004. [PMID: 36939572 DOI: 10.1021/jacs.3c00870] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Ligand-protected noble-metal nanoclusters exhibit an innately triplet nature and have been recently recognized as emerging platforms for triplet sensitizers of photon upconversion (UC) via triplet-triplet annihilation. Herein, we report that a structurally flexible Au-Cu alloy nanocluster, [Au4Cu4(S-Adm)5(DPPM)2]+ (Au4Cu4; S-Adm = 1-adamantanethiolate, DPPM = bis(diphenylphosphino)methane), exhibited favorable sensitizer properties and superior UC performance. Contrary to the structurally rigid Au2Cu6(S-Adm)6(TPP)2 (Au2Cu6, TPP = triphenylphosphine), Au4Cu4 exhibited significantly better sensitizer characteristics, such as a near-unity quantum yield for intersystem crossing (ISC), long triplet lifetime (ca. 8 μs), and efficient triplet energy transfer (TET). The efficient ISC of Au4Cu4 was attributed to the practically negligible activation barriers during the ISC process, which was caused by the spin-orbit interaction between the two isoenergetic isomers predicted by theoretical calculations. A series of aromatic molecules with different triplet energies were used as acceptors to reveal the driving force dependence of the TET rate constant (kTET). This dependency was analyzed to evaluate the triplet energy and sensitization ability of the alloy nanoclusters. The results showed that the maximum value of kTET for Au4Cu4 was seven times larger than that for Au2Cu6, which presumably reflects the structural/electronic fluctuations of Au4Cu4 during the triplet state residence. The combination of the Au4Cu4 sensitizer and the 9,10-diphenylanthracene (DPA) annihilator/emitter achieved UC with internal quantum yields of 14% (out of 50% maximum) and extremely low threshold intensities (2-26 mWcm-2). This performance far exceeds that of Au2Cu6 and is also outstanding among the organic-inorganic hybrid nanomaterials reported so far.
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Affiliation(s)
- Daichi Arima
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1, Nishiikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Masaaki Mitsui
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1, Nishiikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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7
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Devi A, Seksaria H, Bain D, Kolay S, Rashi, De Sarkar A, Patra A. Experimental and computational insights into luminescence in atomically precise bimetallic Au 6-nCu n(MPA) 5 ( n = 0-2) clusters. Phys Chem Chem Phys 2023; 25:9513-9521. [PMID: 36939011 DOI: 10.1039/d2cp05120f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Bimetallic nanoclusters (NCs) have emerged as a new class of luminescent materials for potential applications in sensing, bio-imaging, and light-emitting diodes (LEDs). Here, we have synthesized gold-copper bimetallic nanoclusters (AuCu NCs) using a one-step co-reduction method and tuned the emission wavelength from 520 nm to 620 nm by changing the [Cu2+]/[Au3+] molar ratio. The quantum yield (QY) increases from 6% to 13% upon incorporation of the Cu atom in the Au NCs. MALDI-TOF mass spectrometric analysis reveals that the composition of the Au NCs is Au6(MPA)5, and the bimetallic nanocluster is Au4Cu2(MPA)5, where 3-mercaptopropionic acid (MPA) is used as the capping ligand. Furthermore, we investigated the optimized structures of the as-synthesized NCs using density functional theory (DFT) along with analysis of the preferable adsorption sites using Fukui functions. We report the HOMO-LUMO gap, which is consistent with the experimentally observed red shift in the UV-Vis absorption features of the Au NCs upon copper doping. XPS studies suggest the formation of intermixing of states between the 5d orbitals of Au and the 3d orbitals of Cu in the AuCu NCs after incorporating Cu atoms into the Au NCs, which is corroborated by the DFT calculations on electronic charge transfer from the Cu to the Au atom in the NCs. The coupling between Au(I) and Cu(I) facilitates the formation of a low-lying mixed Au(I)-Cu(I) energy state. This study elaborates on the impact of Cu doping on the excited-state relaxation dynamics of AuCu NCs.
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Affiliation(s)
- Aarti Devi
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Harshita Seksaria
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Dipankar Bain
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Rashi
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Abir De Sarkar
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
| | - Amitava Patra
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India. .,School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
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8
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Clusteroluminescence in Organic, Inorganic, and Hybrid Systems: A Review. THEOR EXP CHEM+ 2023. [DOI: 10.1007/s11237-023-09747-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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9
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Chakraborty A, Stanley MM, Mondal B, Bodiuzzaman M, Chakraborty P, Kannan MP, Pradeep T. Tunable reactivity of silver nanoclusters: a facile route to synthesize a range of bimetallic nanostructures. NANOSCALE 2023; 15:2690-2699. [PMID: 36651628 DOI: 10.1039/d2nr06350f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Quantized energy levels and unique optoelectronic properties of atomically precise noble metal nanoclusters (NCs) have made them important in materials science, catalysis, sensors, and biomedicine. Recent studies on the profound chemical interactions of such NCs within themselves and with ultrasmall plasmonic nanoparticles (NPs) indicate that depending on the size, shape, and composition of the second reactant, NCs can either take part in colloidal assembly without any chemical modifications or lead to products with atoms exchanged. Anisotropic NPs are a unique class of plasmonic nanomaterials as their sharp edges and protrusions show higher chemical reactivity compared to flat surfaces, often leading to site-specific growth of foreign metals and metal oxide shells. Here, using chemical interactions between gold nanotriangles (AuNTs) and Ag NCs of different compositions, we show for the first time that metal atom etching, alloying/atom exchange, and colloidal assembly can all happen at a particular length scale. Specifically, Ag25(DMBT)18 NCs (denoted as 1), upon reacting with AuNTs of ∼57 nm edge length, etch gold atoms from their sharp tips and edges. Simultaneously, the two nanosystems exchange metal atoms, resulting in Ag-doped AuNTs and AuxAg24-x(DMBT)18 (x = 1, 2). However, another Ag NC with the same metallic core, but a different ligand shell, namely, Ag25H22(DPPE)8 (denoted as 2), creates dendritic shells made of Ag, surrounding these AuNTs under the same reaction conditions. Furthermore, we show that in the case of a more reactive thiol-protected Ag NC, namely, Ag44(pMBA)30 (denoted as 3), gold etching is faster from the edges and tips, which drastically alters the identities of both the reactants. Interestingly, when the AuNTs are protected by pMBA, 3 systematically assembles on AuNTs through H-bonding, resulting in an AuNT core-Ag NC shell nanocomposite. Thus, while shedding light on various factors affecting the reactivity of Ag NCs towards AuNTs, the present study proposes a single strategy to obtain a number of bimetallic nanosystems of targeted morphology and functionality.
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Affiliation(s)
- Amrita Chakraborty
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Megha Maria Stanley
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Biswajit Mondal
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Mohammad Bodiuzzaman
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Papri Chakraborty
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - M P Kannan
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
| | - Thalappil Pradeep
- Department of Chemistry, DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Indian Institute of Technology Madras, Chennai 600 036, India.
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Maity A, Kumar A. Higher-order assembly of BSA gold nanoclusters using supramolecular host-guest chemistry: a 40% absolute fluorescence quantum yield. NANOSCALE ADVANCES 2022; 4:2988-2991. [PMID: 36133515 PMCID: PMC9417410 DOI: 10.1039/d2na00123c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 05/31/2022] [Indexed: 06/02/2023]
Abstract
Herein, we report for the first time a highly emissive higher-order assembled structure of BSA-Au NCs in the presence of cucurbit[7]uril, which enhances the absolute fluorescence quantum yield of BSA-Au NCs up to 40%. Cucurbit[7]uril neutralizes the surface charge of BSA-Au NCs, and hence aggregation happens. This aggregation shows reversible disaggregation in the presence of adamantylamine.
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Affiliation(s)
- Anjan Maity
- Materials Research Centre, Indian Institute of Science Bangalore 560012 India
| | - Atul Kumar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore 560012 India
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Kolay S, Bain D, Maity S, Devi A, Patra A, Antoine R. Self-Assembled Metal Nanoclusters: Driving Forces and Structural Correlation with Optical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:544. [PMID: 35159891 PMCID: PMC8838213 DOI: 10.3390/nano12030544] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 02/05/2023]
Abstract
Studies on self-assembly of metal nanoclusters (MNCs) are an emerging field of research owing to their significant optical properties and potential applications in many areas. Fabricating the desired self-assembly structure for specific implementation has always been challenging in nanotechnology. The building blocks organize themselves into a hierarchical structure with a high order of directional control in the self-assembly process. An overview of the recent achievements in the self-assembly chemistry of MNCs is summarized in this review article. Here, we investigate the underlying mechanism for the self-assembly structures, and analysis reveals that van der Waals forces, electrostatic interaction, metallophilic interaction, and amphiphilicity are the crucial parameters. In addition, we discuss the principles of template-mediated interaction and the effect of external stimuli on assembly formation in detail. We also focus on the structural correlation of the assemblies with their photophysical properties. A deep perception of the self-assembly mechanism and the degree of interactions on the excited state dynamics is provided for the future synthesis of customizable MNCs with promising applications.
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Affiliation(s)
- Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Dipankar Bain
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
| | - Aarti Devi
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India; (S.K.); (S.M.)
- Energy and Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India; (D.B.); (A.D.)
| | - Rodolphe Antoine
- CNRS, Institut Lumière Matière UMR 5306, Univ Lyon, Université Claude Bernard Lyon 1, F-69100 Villeurbanne, France
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Hu Y, Yu W, Liao Y, Jiang X, Cheng Z. Alliance between doping Ag and dual ligands-enhanced fluorescent gold nanoclusters for the assays of vitamin B12 and chlortetracycline hydrochloride. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 263:120194. [PMID: 34303220 DOI: 10.1016/j.saa.2021.120194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/08/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
A stable, water-soluble, heightened quantum yields (QYs) Au nanoclusters by the alliance between doping Ag and dual ligands (thiosalicylic acid and bovine serum albumin) (TSA/BSA-Au/AgNCs) was prepared using one-step wet chemical synthesis. The effect of different types of aromatic thiols and the molar ratio of Au-Ag on the photo-luminescence performance of AuNCs was discussed in detail. The alloy NCs is shown to be viable fluorescent method for vitamin B12 (VB12) and chlortetracycline hydrochloride (CCH) assays, and become an excellent temperature sensor in the range of 10-50 °C. The fluorescence (FL) of TSA/BSA-Au/AgNCs was quenched with the addition of VB12 or CCH coming from Förster resonance energy transfer (FRET) combined with inner filter effect (IFE). The method can detect VB12/CCH by fluorometry with a linear response in the range of 0.33-60.0/0.33-60.0 μmol·L-1 and a 71.0/64.0 nmol·L-1 detection limit (at 3σ/slope). Furthermore, the proposed method was extended to the assays of VB12 in mineral water or tablets and CCH in veterinary drug or ointment with satisfactory results.
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Affiliation(s)
- Yue Hu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Weihua Yu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Yunwen Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China; Institute of Applied Chemistry, China West Normal University, Nanchong 637002, China
| | - Xiaohui Jiang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China
| | - Zhengjun Cheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637002, China; Institute of Applied Chemistry, China West Normal University, Nanchong 637002, China.
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13
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Packirisamy V, Pandurangan P. Heterocyclic thiol protected supramolecular self-assembly of silver nanoclusters for ultrasensitive detection of toxic Hg (II) ions in nanomolar range. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117769] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Lin X, Tian M, Cao C, Shu T, Wang J, Wen Y, Su L, Zhang X. Strongly phosphorescent and water-soluble gold(I)-silver(I)-cysteine nanoplatelets via versatile small biomolecule cysteine-assisted synthesis for intracellular hypochlorite detection. Biosens Bioelectron 2021; 193:113571. [PMID: 34425519 DOI: 10.1016/j.bios.2021.113571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/01/2021] [Accepted: 08/13/2021] [Indexed: 12/09/2022]
Abstract
In biological systems, abnormal levels of hypochlorite (ClO-) could result in cell dysfunctions. Herein, we report a facile, one-step and green approach based on the versatile small biomolecule cysteine both serving as reducing agent and ligand for synthesizing the strongly photoluminencent and water-soluble Au(I)-Ag(I)-cysteine complexes nanoplatelets (Au(I)-Ag(I)-Cys nanoplatelets) for intracellular hypochlorite detection. Multiple spectroscopic and microscopical tools have been used to characterize the resultant Au(I)-Ag(I)-Cys nanoplatelets. It was found that with the cysteine-assisted synthesis approach, the Ag(I) doping to the Au(I) complexes could form the supramolecular organometallic nanoplatelets. Inside, the Au(I)-Ag(I) metallophilic interactions showing an Au to Ag charge transfer property were formed, thereby enhancing the photoluminescence (PL) intensity via the charge transfer from the bioligand's S to the metal-metal center. The quantum yield (QY) was measured to show a maximum 16-fold enhancement (i.e., from 0.85 to 13.8%). Interestingly, in the presence of ClO-, the metal-thiolate ligand structure of the as-synthesized Au(I)-Ag(I)-Cys nanoplatelets could be oxidatively damaged, causing the PL quenching, thereby producing the effect of biorecognition towards ClO- anions. The ClO--induced PL quenching produced two linear regions at ClO- concentrations of 0.01-5.0 μM and 5.0-1000 μM with a limit of detection (LOD) of 8.0 nM (S/N = 3). The ClO--induced PL quenching was specific over the other typical reactive oxygen species (ROS) and the potential interfering substances in biological samples. In addition, the Au(I)-Ag(I)-Cys nanoplatelets had good biocompatibility. Thus, they could be further developed as a biosensor for detecting endogenous ClO- anions in living cells.
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Affiliation(s)
- Xiangfang Lin
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Meng Tian
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Chengcheng Cao
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Tong Shu
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, Guangdong, 518060, PR China
| | - Jun Wang
- Department of Biomedicine and Biopharmacology, Hubei University of Technology, Wuhan, PR China
| | - Yongqiang Wen
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Lei Su
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, Guangdong, 518060, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, Guangdong, 518060, PR China
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15
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Jin Y, Peng QC, Li S, Su HF, Luo P, Yang M, Zhang X, Li K, Zang SQ, Tang BZ, Mak TCW. Aggregation-induced barrier to oxygen (AIBO)—A new AIE mechanism for metal cluster with phosphorescence. Natl Sci Rev 2021; 9:nwab216. [PMID: 36110901 PMCID: PMC9469893 DOI: 10.1093/nsr/nwab216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 10/31/2021] [Accepted: 11/15/2021] [Indexed: 11/29/2022] Open
Abstract
Metal clusters are useful phosphors, but highly luminescent examples are quite rare. Usually, the phosphorescence of metal clusters is hindered by ambient O2 molecules. Transforming this disadvantage into an advantage for meaningful applications of metal clusters presents a formidable challenge. In this work, we used ligand engineering to judiciously prepare colour-tuneable and brightly emitting Cu(I) clusters that are ultrasensitive to O2 upon dispersion in a fluid solution or in a solid matrix. When the O2 scavenger dimethyl sulfoxide (DMSO) was used as the solvent, joint photo- and oxygen-controlled multicolour switches were achieved for the first time for metal cluster-based photopatterning and photo-anticounterfeiting. More importantly, an aggregation-induced barrier to oxygen, a new aggregation-induced emission mechanism for metal clusters, was proposed, providing a new pathway to realizing the intense emission of metal clusters in the aggregated state. These results are expected to promote the application of metal clusters and enrich the luminescence theory of metal cluster aggregates.
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Affiliation(s)
- Yan Jin
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Qiu-Chen Peng
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Si Li
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Hui-Fang Su
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Luo
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ming Yang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xin Zhang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Kai Li
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Shuang-Quan Zang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ben Zhong Tang
- Shenzhen Institute of Aggregate Science and Technology, School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen 518172, China
- The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Thomas C W Mak
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
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16
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Kolay S, Maity S, Bain D, Chakraborty S, Patra A. Self-assembly of copper nanoclusters: isomeric ligand effect on morphological evolution. NANOSCALE ADVANCES 2021; 3:5570-5575. [PMID: 36133258 PMCID: PMC9419071 DOI: 10.1039/d1na00446h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/08/2021] [Indexed: 06/15/2023]
Abstract
Tailoring the hierarchical self-assembly of metal nanoclusters (NCs) is an emergent area of research owing to their precise structure and flexible surface environment. Herein, the morphological evolution from rods to platelets to ribbon-like structures through self-assembly of Cu7 NCs is dictated by the positional isomerism of the surface capping ligand, dimethylbenzenethiol (DMBT). Besides cuprophilic interaction, the interplay between π-π stacking and agostic interaction (Cu⋯H-C) directs the inter-NC organization into different ordered architectures. The excited-state relaxation dynamics of the red phosphorescent assembled structures has been correlated with their compactness and the degree of bonding interactions present.
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Affiliation(s)
- Sarita Kolay
- School of Materials Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India +91-33-2473-2805 +91-33-2473-4971
| | - Subarna Maity
- School of Materials Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India +91-33-2473-2805 +91-33-2473-4971
| | - Dipankar Bain
- School of Materials Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India +91-33-2473-2805 +91-33-2473-4971
| | - Sikta Chakraborty
- School of Materials Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India +91-33-2473-2805 +91-33-2473-4971
| | - Amitava Patra
- School of Materials Sciences, Indian Association for the Cultivation of Science Jadavpur Kolkata-700032 India +91-33-2473-2805 +91-33-2473-4971
- Institute of Nano Science and Technology Knowledge City, Sector 81 Mohali 140306 India
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