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Duary S, Jana A, Das A, Acharya S, Kini AR, Roy J, Poonia AK, Patel DK, Yadav V, Antharjanam PKS, Pathak B, Kumaran Nair Valsala Devi A, Pradeep T. Milling-Induced "Turn-off" Luminescence in Copper Nanoclusters. Inorg Chem 2024. [PMID: 39321419 DOI: 10.1021/acs.inorgchem.4c02617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2024]
Abstract
Atomically precise copper nanoclusters (NCs) attract research interest due to their intense photoluminescence, which enables their applications in photonics, optoelectronics, and sensing. Exploring these properties requires carefully designed clusters with atomic precision and a detailed understanding of their atom-specific luminescence properties. Here, we report two copper NCs, [Cu4(MNA)2(DPPE)2] and [Cu6(MNA-H)6], shortly Cu4 and Cu6, protected by 2-mercaptonicotinic acid (MNA-H2) and 1,2-bis(diphenylphosphino)ethane (DPPE), showing "turn-off" mechanoresponsive luminescence. Single-crystal X-ray diffraction reveals that in the Cu4 cluster, two Cu2 units are appended with two thiols, forming a flattened boat-shaped Cu4S2 kernel, while in the Cu6 cluster, two Cu3 units form an adamantane-like Cu6S6 kernel. High-resolution electrospray ionization mass spectrometry studies reveal the molecular nature of these clusters. Lifetime decay profiles of the two clusters show the average lifetimes of 0.84 and 1.64 μs, respectively. These thermally stable Cu NCs become nonluminescent upon mechanical milling but regain their emission upon exposure to solvent vapors. Spectroscopic data of the clusters match well with their computed electronic structures. This work expands the collection of thermally stable and mechanoresponsive luminescent coinage metal NCs, enriching the diversity and applications of such materials.
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Affiliation(s)
- Subrata Duary
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Arijit Jana
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Amitabha Das
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | - Swetashree Acharya
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Amoghavarsha Ramachandra Kini
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Jayoti Roy
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Ajay Kumar Poonia
- Department of Physics, Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India
| | - Deepak Kumar Patel
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - Vivek Yadav
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
| | - P K Sudhadevi Antharjanam
- Sophisticated Analytical Instrument Facility, Indian Institute of Technology Madras, Chennai 600036, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Indore 453552, India
| | | | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India
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2
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Wen X, Pang C, Wang Y, Li F, Fan Z. Effect of different crystal forms of MnO 2 quenchers on the sensitivity of copper nanoclusters and their use in acidphosphatase activity. Mikrochim Acta 2024; 191:592. [PMID: 39261319 DOI: 10.1007/s00604-024-06660-2] [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: 06/25/2024] [Accepted: 08/27/2024] [Indexed: 09/13/2024]
Abstract
Highly stable copper nanocluster (CuNCs) with aggregation-induced emission (AIE) properties was synthesized. α-, β-, and γ- MnO2 were utilized as quenchers, with CuNCs fluorescence quenching of 48.9%, 91.5%, and 96.6%, respectively. L-ascorbate-2-phosphate (AAP) was hydrolyzed by acid phosphatase (ACP), and ascorbic acid (AA) was formed. Then, MnO2 could be restored by AA, and the fluorescence of the CuNCs could be restored. An on-off-on detection platform with a high signal/noise ratio was constructed for the sensing of ACP. The fluorescence recovery rate of the CuNCs was related to the crystal forms of MnO2. Then, the equilibrium constants (K) for the reaction between AA and MnO2 were calculated to evaluate the reaction process. Compared with the K values of CuNCs/α-MnO2 and CuNCs/γ-MnO2, the K values for AA and β-MnO2 were maximum. The CuNCs/β-MnO2 system exhibited optimal fluorescence recovery for the sensitive detection of ACP. In the concentration range 0.005-0.06 U/mL, the detection limit was 0.0028 U/mL. The determination of serum ACP levels also revealed satisfactory results. This study provides novel insights into enhancing the sensitivity of the determination of quenchers in different crystal form.
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Affiliation(s)
- Xiaoye Wen
- School of Chemistry and Materials Science, Shanxi Normal University, TaiYuan, 030032, China
| | - Chenjie Pang
- School of Chemistry and Materials Science, Shanxi Normal University, TaiYuan, 030032, China
| | - Yan Wang
- School of Chemistry and Materials Science, Shanxi Normal University, TaiYuan, 030032, China
| | - Fang Li
- School of Chemistry and Materials Science, Shanxi Normal University, TaiYuan, 030032, China
| | - Zhefeng Fan
- School of Chemistry and Materials Science, Shanxi Normal University, TaiYuan, 030032, China.
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3
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Wang ZX, Gao H, Jia YL, Li XQ, Wang T, Ding SN, Chen HY, Xu JJ. Interfacial Hydrogen-Bond Interactions Driven Assembly toward Polychromatic Copper Nanoclusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403842. [PMID: 38966890 DOI: 10.1002/smll.202403842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/20/2024] [Indexed: 07/06/2024]
Abstract
Constructing versatile metal nanoclusters (NCs) assemblies through noncovalent weak interactions between inter-ligands is a long-standing challenge in interfacial chemistry, while compelling interfacial hydrogen-bond-driven metal NCs assemblies remain unexplored so far. Here, the study reports an amination-ligand o-phenylenediamine-coordinated copper NCs (CuNCs), demonstrating the impact of interfacial hydrogen-bonds (IHBs) motifs on the luminescent behaviors of metal NCs as the alteration of protic solvent. Experimental results supported by theoretical calculation unveil that the flexibility of interfacial ligand and the distance of cuprophilic CuI···CuI interaction between intra-/inter-NCs can be tailored by manipulating the cooperation between the diverse IHBs motifs reconstruction, therewith the IHBs-modulated fundamental structure-property relationships are established. Importantly, by utilizing the IHBs-mediated optical polychromatism of aminated CuNCs, portable visualization of humidity sensing test-strips with fast response is successfully manufactured. This work not only provides further insights into exploring the interfacial chemistry of NCs based on inter-ligands hydrogen-bond interactions, but also offers a new opportunity to expand the practical application for optical sensing of metal NCs.
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Affiliation(s)
- Zhong-Xia Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Hang Gao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yi-Lei Jia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xiao-Qiong Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Ting Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Shou-Nian Ding
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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Zhang Q, Duan J, Chen J, Du J, Tong H, Liao S. A Novel Enhanced-Fluorescent Probe Based on DHLA-Stabilized Red-Emitting Copper Nanoclusters for Methimazole Detection Via Aggregation-Induced Emission Effect. J Fluoresc 2024:10.1007/s10895-024-03701-0. [PMID: 38652358 DOI: 10.1007/s10895-024-03701-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 04/05/2024] [Indexed: 04/25/2024]
Abstract
Herein, an aqueous phase synthesis approach was presented for the fabrication of copper nanoclusters (Cu NCs) with aggregation-induced emission (AIE) property, utilizing lipoic acid and NaBH4 as ligands and reducing agent, respectively. The as-synthesized Cu NCs exhibit an average size of 3.0 ± 0.2 nm and demonstrate strong solid-state fluorescence upon excitation with UV light. However, when dissolved in water, no observable fluorescent emission is detected in the aqueous solution of Cu NCs. Remarkably, the addition of Methimazole induced a significant red fluorescence from the aqueous solution of Cu NCs. This unexpected phenomenon can be ascribed to the aggregation of negatively charged Cu NCs caused by electrostatic interaction with positively charged imidazole groups in Methimazole, resulting in enhanced fluorescence through AIE mechanism. Therefore, there exists an excellent linear correlation between the fluorescent intensities of Cu NCs aqueous solution and the concentration of Methimazole within a range of 0.1-1.5 mM with a low limit of detection of 82.2 µM. Importantly, the designed enhanced-fluorescent nanoprobe based on Cu NCs exhibits satisfactory performance in assaying commercially available Methimazole tablets, demonstrating its exceptional sensitivity, reliability, and accuracy.
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Affiliation(s)
- Qikun Zhang
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jingyi Duan
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Jinwen Chen
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Juan Du
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Huixiao Tong
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China
| | - Shenghua Liao
- Department of Analytical Chemistry, School of Science, China Pharmaceutical University, Nanjing, Jiangsu, 211198, PR China.
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Fu J, Liu J, Li Y, Wang C, Shen J, Qi W. Gold nanoclusters with enhanced near-infrared emission and its application as sensors for biological molecules. Anal Chim Acta 2023; 1258:341172. [PMID: 37087293 DOI: 10.1016/j.aca.2023.341172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 03/03/2023] [Accepted: 04/02/2023] [Indexed: 04/08/2023]
Abstract
Ultrasmall gold nanoclusters (NCs) have been engineered as a new kind of functional material due to their excellent photoluminescence properties. However, the synthesis of highly luminescent water-soluble nanoclusters with near-infrared (NIR) emission remains limited. Herein, we developed a pH-regulated strategy to facilitate the construction of self-assemblies with enhanced luminescence based on aggregation-induced emission (AIE) strategy. Using 2-mercaptobenzoic acid (MBA) as reductant and stabilizer, the original weakly luminescent AuNCs exhibited intense emission by adjusting pH controllably. The formation of compact organized nanostructures could effectively restrict the rotation and vibration of capping ligands by non-covalent interactions, which reduced the nonradiative relaxation from excited states and finally improved the emission properties of AuNCs. Moreover, the assemblies possess many intriguing features including bright NIR luminescence and excellent biocompatibility, which could be used as luminous probes in biological molecules sensing (tyrosinase (TYR) and dopamine (DA)) and promising candidates for cell imaging. This study provides a simple and feasible strategy for developing metal NCs-based smart optical materials in the field of bioscience.
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Wang Z, Zhang S, Xie H, Sun D, Wang W, Li S, Xin X. Dispersing Hydrophobic Copper Nanoclusters in Aqueous Solutions Triggered by Polyoxometalate with Aggregation-Induced Eimission Properties. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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7
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Chen Z, Gu Y, Cao W, Zhang T, Wang C, Sun F, Ding W. A Hybrid Ratiometric Probe for the Differential Detection of Testosterone and Iron Ions Based on Simultaneous Response of Fluorescence and Light Scattering of Gold Nanoclusters. Inorganica Chim Acta 2023. [DOI: 10.1016/j.ica.2023.121431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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8
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Reversible demulsification and emulsification of surfactant emulsions regulated by light-responsive azo functionalized copper nanoclusters. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Du P, Zhang J, Ma J, Chu Z, Cao F, Liu J. Synthesis of Copper Nanoclusters and Their Application for Environmental Pollutant Probes: A Review. Crit Rev Anal Chem 2022; 54:1416-1429. [PMID: 36037057 DOI: 10.1080/10408347.2022.2116555] [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] [Indexed: 10/15/2022]
Abstract
Copper nanoclusters (CuNCs) as a new type of probe for environmental contaminants are gaining increasing attention because of its low cost, superior water dispersibility, wide availability and excellent optical properties. Compared with the other probes such as quantum dots and organic dyes, CuNCs show much more potential in practical application for their excellent photostability, large Stokes shift, low toxicity and other preponderance, especially in the fields of biosensing and environmental monitoring. Recently, the template-assisted synthesis of metal nanoclusters (MNCs) has been widely studied. A variety of templates such as proteins, small thiol molecules, polymers, and DNA with different spatial configuration have been used for the preparation of MNCs so far. This review primarily described recent advances in CuNCs in terms of the synthesis of CuNCs from different templates, the methods to improve the fluorescence (FL) properties of CuNCs, as well as the basic detection mechanisms based on the FL properties or catalytic properties. Finally, to promote the practical application of CuNCs probes, the challenges and prospects of CuNCs multifunctional probes are also discussed.
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Affiliation(s)
- Peng Du
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Jing Zhang
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Jieyu Ma
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Zhengkun Chu
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Feng Cao
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
| | - Jie Liu
- College of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou, China
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Luminescent Sensors Based on the Assembly of Coinage Metal Nanoclusters. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Coinage metals, such as Cu, Ag and Au, can form nanoclusters, which, when functionalized with ligands, have unique electronic and optical properties and are widely used in biomedical imaging, remote sensing, labeling, catalytic, etc. The mechanisms, structures and properties of nanocluster assemblies have been well reviewed. However, the collections and analyses of nanocluster assemblies for sensor application are few. This review examines different nanocluster sensor platforms with a focus on the assembly and analysis of the assembly processes and examples of applications.
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11
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Zhang W, Sun DW, Ma J, Cheng J, Wang Z, Tang BZ. A volatile basic nitrogens-responsive tag based on aggregation-induced emission luminogen for real-time monitoring and In situ visualization of salmon freshness. Anal Chim Acta 2022; 1221:340122. [DOI: 10.1016/j.aca.2022.340122] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 11/30/2022]
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Ratiometric fluorescence determination of chlortetracycline based on the aggregation of copper nanoclusters triggered by aluminum ion. Mikrochim Acta 2021; 189:28. [PMID: 34907464 DOI: 10.1007/s00604-021-05093-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
The aggregation-induced emission (AIE) characteristic of copper nanoclusters (CuNC) was for the first time used to construct a ratiometric fluorescence probe (CuNC-Al3+) for detection of chlortetracycline (CTC). Aluminum ion (Al3+) can aggregate free CuNC and make it emit a bright and stable red fluorescence. A slight excess of Al3+ in CuNC-Al3+ solution can form a CTC-Al3+ complex to limit the conformational rotation of CTC molecule and enhance CTC fluorescence. So, the red fluorescence of CuNC-Al3+ probe and the enhanced CTC fluorescence are used as a reference signal and a response signal to detect CTC, respectively. The method developed shows a good linear relationship between the CTC concentration and the fluorescence intensity ratio (I495/I575) in the range 0.1-3.0 µM, and the detection limit is 25.3 nM (S/N = 3). In addition, the fluorescent color of CuNC-Al3+ probe changes from red to yellow-green as the concentration of CTC increases. Based on this observation, a fluorescent test paper has also been fabricated. Schematic illustration of Al3+ inducing CuNC to produce AIE performance and detecting CTC.
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Qiu Y, Wen Z, Mei S, Wei J, Chen Y, Hu Z, Cui Z, Zhang W, Xie F, Guo R. Cation Crosslinking-Induced Stable Copper Nanoclusters Powder as Latent Fingerprints Marker. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3371. [PMID: 34947720 PMCID: PMC8708820 DOI: 10.3390/nano11123371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/30/2021] [Accepted: 12/09/2021] [Indexed: 11/17/2022]
Abstract
Luminescent copper nanoclusters (Cu NCs) have shown great potential in light-emitting devices (LEDs), chemical sensing, catalysis and biological fields. However, their practical use has been restricted by poor stability, and study on the stability of Cu NCs solid powder along with the mechanism is absent. In this study, stablized Cu NCs powder was first obtained by cation crosslinking method. Compared with the powder synthesized by solvent precipitation method, the stability of Cu NCs powder crosslinked by ionic inducer Ce3+ was enhanced around 100-fold. The storage time when the fluorescence intensity decreased to 85% (T85) was improved from 2 h to 216 h, which is the longest so far. The results of characterizations indicated that the aggregation structure was formed by the binding of Ce3+ with the capping ligands of Cu NCs, which helped in obtaining Ce-Cu NCs powder from aggregate precipitation in solution. Furthermore, this compact structure could avoid the destruction of ambient moisture resulting in long-lasting fluorescence and almost unchanged physical form. This demonstrated that phosphor, with excellent characteristics of unsophisticated synthesis, easy preservation and stable fluorescence, showed great potential in light sources, display technology and especially in latent fingerprints visualization on different substrates for forensic science.
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Affiliation(s)
- Yi Qiu
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Zhuoqi Wen
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai 200433, China;
| | - Shiliang Mei
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Jinxin Wei
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Yuanyuan Chen
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Zhe Hu
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Zhongjie Cui
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Wanlu Zhang
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Fengxian Xie
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
| | - Ruiqian Guo
- Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai 200433, China; (Y.Q.); (S.M.); (J.W.); (Y.C.); (Z.H.); (Z.C.); (W.Z.); (F.X.)
- Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai 200433, China;
- Zhongshan-Fudan Joint Innovation Center, Zhongshan 528437, China
- Yiwu Research Institute, Fudan University, Chengbei Road, Yiwu 322000, China
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Mu J, Peng Y, Shi Z, Zhang D, Jia Q. Copper nanocluster composites for analytical (bio)-sensing and imaging: a review. Mikrochim Acta 2021; 188:384. [PMID: 34664135 DOI: 10.1007/s00604-021-05011-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/27/2021] [Indexed: 12/29/2022]
Abstract
As an ideal substitute for traditional organic fluorescent dyes or up-conversion nanomaterials, copper nanoclusters (CuNCs) have developed rapidly and have been involved in exciting achievements in versatile applications. The emergence of novel CuNCs composites improves the poor stability and fluorescence intensity of CuNCs. With this in mind, great efforts have been made to develop a wide variety of CuNCs composites, and impressive progress has been made in the past few years. In this review, we systematically summarize absorption, fluorescence, electrochemiluminescence, and catalytic properties and focus on the multiple factors that affect the fluorescence properties of CuNCs. The fluorescence properties of CuNCs are discussed from the point of view of core size, surface ligands, self-assembly, metal defects, pH, solvent, ions, metal doping, and confinement effect. Especially, we illustrate the research progress and representative applications of CuNCs composites in bio-related fields, which have received considerable interests in the past years. Additionally, the sensing mechanism of CuNCs composites is highlighted. Finally, we summarize current challenges and look forward to the future development of CuNCs composites. Schematic diagram of the categories, possible sensing mechanisms, and bio-related applications of copper nanoclusters composites.
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Affiliation(s)
- Jin Mu
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yu Peng
- College of Chemistry, Jilin University, Changchun, 130012, China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Dawei Zhang
- College of Chemistry, Jilin University, Changchun, 130012, China.
| | - Qiong Jia
- College of Chemistry, Jilin University, Changchun, 130012, China.
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15
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Schrage BR, Nemykin VN, Ziegler CJ. BOSHPY Fluorophores: BODIPY Analogues with Single Atom Controlled Aggregation. Org Lett 2021; 23:5246-5250. [PMID: 34151578 DOI: 10.1021/acs.orglett.1c01776] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The reaction of diiminoisoindoline and iminoxoisoindoline with aminoazoles results in the formation of bidentate chelates that can be considered a semihemiporphyrazine. These chelates react with BF3 to produce fluorescent compounds that are structurally analogous to the BODIPY dyes. These difluoroboron semihemiporphyrazines (BOSHPYs) aggregate, and the type of aggregation (H or J) is determined by a single atom at the periphery of the ligand (O or N). Notably, the imine terminated compounds remain fluorescent upon aggregation.
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Affiliation(s)
- Briana R Schrage
- Department of Chemistry, University of Akron, Akron, Ohio 44312-3601, United States
| | - Victor N Nemykin
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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Hu X, Cao H, Dong W, Tang J. Ratiometric fluorescent sensing of ethanol based on copper nanoclusters with tunable dual emission. Talanta 2021; 233:122480. [PMID: 34215108 DOI: 10.1016/j.talanta.2021.122480] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/16/2021] [Accepted: 04/27/2021] [Indexed: 12/13/2022]
Abstract
Copper nanoclusters (Cu NCs) have attracted a surge of interest in fluorescent sensors as their outstanding physicochemical and optical properties. However, most of the reports have focused on single-signal fluorescent sensors, which are susceptible to background interferences and affect accuracy of the results. Herein, we constructed a facile ratiometric fluorescent sensor for monitoring ethanol based on Cu NCs with tunable dual emission. Polyvinylpyrrolidone (PVP)-modified Cu NCs were simply prepared in water, which exhibit ratiometric dual emission, including a strong green emission at 520 nm and a weak blue emission at 450 nm. The PVP-Cu NCs in water with strong green emission display monodisperse state due to the formation of hydration shell around Cu NCs. In ethanol where the hydration shell is destructed, Cu NCs tend to aggregate and show strong blue emission. This emission shift might attribute to the enhancement of Cu-Cu metallophilic interaction with the aggregation of Cu NCs, which induces the excited-state level increasing. Thus, a ratiometric fluorescent probe for ethanol based on the PVP-Cu NCs is fabricated, which possesses rapid response (<1 min), and realize full-range detection from 0 to 100%. In addition, this ratiometric probe is successfully applied to determine the alcohol strength of alcohol beverages, demonstrating the great potential in practical application.
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Affiliation(s)
- Xue Hu
- The Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei, 230601, China.
| | - Haiyan Cao
- The Key Laboratory of Chongqing Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Wenfei Dong
- The Key Laboratory of Chongqing Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing, 408100, China
| | - Jianshe Tang
- The Key Laboratory of Water Pollution Control and Wastewater Reuse of Anhui Province, School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei, 230601, China
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17
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Guan L, Liu W, Kang H, Tian D. Fabrication and cell imaging of konjac glucomannan-copper nanocluster conjugates with aggregation-induced emission. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123796] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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18
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Baghdasaryan A, Bürgi T. Copper nanoclusters: designed synthesis, structural diversity, and multiplatform applications. NANOSCALE 2021; 13:6283-6340. [PMID: 33885518 DOI: 10.1039/d0nr08489a] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Atomically precise metal nanoclusters (MNCs) have gained tremendous research interest in recent years due to their extraordinary properties. The molecular-like properties that originate from the quantized electronic states provide novel opportunities for the construction of unique nanomaterials possessing rich molecular-like absorption, luminescence, and magnetic properties. The field of monolayer-protected metal nanoclusters, especially copper, with well-defined molecular structures and compositions, is relatively new, about two to three decades old. Nevertheless, the massive progress in the field illustrates the importance of such nanoobjects as promising materials for various applications. In this respect, nanocluster-based catalysts have become very popular, showing high efficiencies and activities for the catalytic conversion of chemical compounds. Biomedical applications of clusters are an active research field aimed at finding better fluorescent contrast agents, therapeutic pharmaceuticals for the treatment and prevention of diseases, the early diagnosis of cancers and other potent diseases, especially at early stages. A huge library of structures and the compositions of copper nanoclusters (CuNCs) with atomic precisions have already been discovered during last few decades; however, there are many concerns to be addressed and questions to be answered. Hopefully, in future, with the combined efforts of material scientists, inorganic chemists, and computational scientists, a thorough understanding of the unique molecular-like properties of metal nanoclusters will be achieved. This, on the other hand, will allow the interdisciplinary researchers to design novel catalysts, biosensors, or therapeutic agents using highly structured, atomically precise, and stable CuNCs. Thus, we hope this review will guide the reader through the field of CuNCs, while discussing the main achievements and improvements, along with challenges and drawbacks that one needs to face and overcome.
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Affiliation(s)
- Ani Baghdasaryan
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet, 1211 Geneva 4, Switzerland.
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19
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Liu M, Kuang K, Li G, Yang S, Yuan Z. Photoluminescence-enhanced cholesteric films: Coassembling copper nanoclusters with cellulose nanocrystals. Carbohydr Polym 2021; 257:117641. [PMID: 33541665 DOI: 10.1016/j.carbpol.2021.117641] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/22/2020] [Accepted: 01/07/2021] [Indexed: 11/16/2022]
Abstract
Iridescent and luminescent composite films were fabricated through a coassembly strategy, in which glutathione-stabilized copper nanoclusters (GSH-CuNCs) were incorporated into chiral nematic structures of a cellulose nanocrystal (CNC) film. Through variations in the helical pitch, these composite films exhibited broadband reflection. The fluorescence emission spectrum of the composite film exhibited peaks at 439 and 600 nm, corresponding to crystallization-induced emission from CNCs and assembly-induced emission from CuNCs. The enhanced luminescence and prolonged lifetime of the composite film were attributed to the confinement effect of solid layers and attendant intermolecular interactions. By tuning the reaction time, temperature, and pH of the solution, the emission color and intensity of the CuNCs could be changed. At appropriate GSH and Cu2+ concentrations, the chiral organization of GSH-CuNCs enabled the composite CNC film to exhibit right-handed chiral fluorescence with an asymmetry factor of -0.16. Luminescent composite films were employed to fabricate LEDs with custom colors and patterns.
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Affiliation(s)
- Mingye Liu
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Kexu Kuang
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Guihua Li
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China.
| | - Shiquan Yang
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
| | - Zaiwu Yuan
- Key Laboratory of Fine Chemicals in Universities of Shandong, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China
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20
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Zhu L, Zhu B, Luo J, Liu B. Design and Property Modulation of Metal–Organic Frameworks with Aggregation-Induced Emission. ACS MATERIALS LETTERS 2021; 3:77-89. [DOI: 10.1021/acsmaterialslett.0c00477] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- Longyi Zhu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Bin Zhu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jun Luo
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
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21
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Ultrashort peptide-stabilized copper nanoclusters with aggregation-induced emission. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125514] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Facile Synthesis of Ultrastable Fluorescent Copper Nanoclusters and Their Cellular Imaging Application. NANOMATERIALS 2020; 10:nano10091678. [PMID: 32859115 PMCID: PMC7558839 DOI: 10.3390/nano10091678] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/14/2020] [Accepted: 08/25/2020] [Indexed: 12/11/2022]
Abstract
Copper nanoclusters (Cu NCs) are generally formed by several to dozens of atoms. Because of wide range of raw materials and cheap prices, Cu NCs have attracted scientists’ special attention. However, Cu NCs tend to undergo oxidation easily. Thus, there is a dire need to develop a synthetic protocol for preparing fluorescent Cu NCs with high QY and better stability. Herein, we report a one-step method for preparing stable blue-green fluorescent copper nanoclusters using glutathione (GSH) as both a reducing agent and a stabilizing agent. High-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and electrospray ionization mass spectrometer (ESI-MS) were used to characterize the resulting Cu NCs. The as-prepared Cu NCs@GSH possess an ultrasmall size (2.3 ± 0.4 nm), blue-green fluorescence with decent quantum yield (6.2%) and good stability. MTT results clearly suggest that the Cu NCs@GSH are biocompatible. After incubated with EB-labeled HEK293T cells, the Cu NCs mainly accumulated in nuclei of the cells, suggesting that the as-prepared Cu NCs could potentially be used as the fluorescent probe for applications in cellular imaging.
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