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Добірка наукової літератури з теми "Luminescent Metal Nanoclusters"

Автор: Grafiati
Опубліковано: 7 вересня 2023

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Статті в журналах з теми "Luminescent Metal Nanoclusters"

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Si, Hongxin, Tong Shu, Xin Du, Lei Su, and Xueji Zhang. "An Overview on Coinage Metal Nanocluster-Based Luminescent Biosensors via Etching Chemistry." Biosensors 12, no. 7 (July 11, 2022): 511. http://dx.doi.org/10.3390/bios12070511.

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Анотація:
The findings from the synthetic mechanism of metal nanoclusters yield the etching chemistry based on coinage metal nanoclusters. The utilization of such chemistry as a tool that can alter the optical properties of metal nanoclusters has inspired the development of a series of emerging luminescent biosensors. Compared with other sensors, the luminescent biosensors have the advantages of being more sensitive, saving time and saving cost. We reviewed topics on the luminescent sensors based on the etching of emissive coinage metal nanoclusters. The molecules possessing varied etching ability towards metal nanoclusters were categorized with discussions of corresponding etching mechanisms. The understanding of etching mechanisms favored the discussions of how to use etching methods to detecting biochemical molecules. The emerging luminescent biosensors via etching chemistry also provided challenges and new opportunities for analytical chemistry and sensors.
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2

Ren, Chenyu, Tong Shu, Xin Du, Linzhi Yang, Lei Su, and Xueji Zhang. "Luminescent Sensors Based on the Assembly of Coinage Metal Nanoclusters." Chemosensors 10, no. 7 (June 30, 2022): 253. http://dx.doi.org/10.3390/chemosensors10070253.

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Анотація:
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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3

Yang, Tai-Qun, Bo Peng, Bing-Qian Shan, Yu-Xin Zong, Jin-Gang Jiang, Peng Wu, and Kun Zhang. "Origin of the Photoluminescence of Metal Nanoclusters: From Metal-Centered Emission to Ligand-Centered Emission." Nanomaterials 10, no. 2 (February 4, 2020): 261. http://dx.doi.org/10.3390/nano10020261.

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Recently, metal nanoclusters (MNCs) emerged as a new class of luminescent materials and have attracted tremendous interest in the area of luminescence-related applications due to their excellent luminous properties (good photostability, large Stokes shift) and inherent good biocompatibility. However, the origin of photoluminescence (PL) of MNCs is still not fully understood, which has limited their practical application. In this mini-review, focusing on the origin of the photoemission emission of MNCs, we simply review the evolution of luminescent mechanism models of MNCs, from the pure metal-centered quantum confinement mechanics to ligand-centered p band intermediate state (PBIS) model via a transitional ligand-to-metal charge transfer (LMCT or LMMCT) mechanism as a compromise model.
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4

Su, Yu, Tiantian Xue, Yuxin Liu, Jinxia Qi, Rongchao Jin, and Zhenkun Lin. "Luminescent metal nanoclusters for biomedical applications." Nano Research 12, no. 6 (May 29, 2019): 1251–65. http://dx.doi.org/10.1007/s12274-019-2314-y.

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5

Chakraborty, Subhajit, and Saptarshi Mukherjee. "Effects of protecting groups on luminescent metal nanoclusters: spectroscopic signatures and applications." Chemical Communications 58, no. 1 (2022): 29–47. http://dx.doi.org/10.1039/d1cc05396e.

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Анотація:
We discuss the effect of ligands on the preparation of luminescent metal nanoclusters and how this tunes their spectroscopic signatures. The versatile nature of these nanoclusters in terms of multi-faceted applications are also highlighted.
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6

Li, Tingting, Haifeng Zhu, and Zhennan Wu. "Viewing Aggregation-Induced Emission of Metal Nanoclusters from Design Strategies to Applications." Nanomaterials 13, no. 3 (January 24, 2023): 470. http://dx.doi.org/10.3390/nano13030470.

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Анотація:
Aggregation-induced emission (AIE)-type metal nanoclusters (NCs) represent an innovative type of luminescent metal NCs whose aggregates exhibit superior performance over that of individuals, attracting wide attention over the past decade. Here, we give a concise overview of the progress made in this area, from design strategies to applications. The representative design strategies, including solvent-induction, cation-induction, crystallization-induction, pH-induction, ligand inheritance, surface constraint, and minerals- and MOF-confinement, are first discussed. We then present the typical practical applications of AIE-type metal NCs in the various sectors of bioimaging, biological diagnosis and therapy (e.g., antibacterial agents, cancer radiotherapy), light-emitting diodes (LEDs), detection assays, and circularly polarized luminescence (CPL). To this end, we present our viewpoints on the promises and challenges of AIE-type metal NCs, which may shed light on the design of highly luminescent metal NCs, stimulating new vitality and serving as a continuous boom for the metal NC community in the future.
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7

Shellaiah, Muthaiah, and Kien Sun. "Luminescent Metal Nanoclusters for Potential Chemosensor Applications." Chemosensors 5, no. 4 (December 19, 2017): 36. http://dx.doi.org/10.3390/chemosensors5040036.

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8

Qian, Shuyu, Ziping Wang, Zhongxiang Zuo, Xiaomeng Wang, Qing Wang, and Xun Yuan. "Engineering luminescent metal nanoclusters for sensing applications." Coordination Chemistry Reviews 451 (January 2022): 214268. http://dx.doi.org/10.1016/j.ccr.2021.214268.

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Goswami, Nirmal, Qiaofeng Yao, Zhentao Luo, Jingguo Li, Tiankai Chen, and Jianping Xie. "Luminescent Metal Nanoclusters with Aggregation-Induced Emission." Journal of Physical Chemistry Letters 7, no. 6 (February 29, 2016): 962–75. http://dx.doi.org/10.1021/acs.jpclett.5b02765.

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10

Wang, Chengri, Xiaoping Yang, Shiqing Wang, Ting Zhu, Le Bo, Lijie Zhang, Hongfen Chen, Dongmei Jiang, Xiaomei Dong, and Shaoming Huang. "Anion dependent self-assembly of drum-like 30- and 32-metal Cd–Ln nanoclusters: visible and NIR luminescent sensing of metal cations." Journal of Materials Chemistry C 6, no. 4 (2018): 865–74. http://dx.doi.org/10.1039/c7tc04101b.

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Дисертації з теми "Luminescent Metal Nanoclusters"

1

Kempa, Thomas. "Towards Implementation of Metal Nanoclusters as Luminescent Probes for Detection of Single-Particle Dynamics: "Watching Nanoscale Dynamics Unfold"." Thesis, Boston College, 2004. http://hdl.handle.net/2345/442.

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Thesis advisor: John T. Fourkas
One can extract a tremendous amount of information about the organizational and dynamic states of molecules, in situ and in real-time, through highly sensitive and noninvasive single particle optical probing. The highly efficient, multi-photon excited luminescence from stabilized metal nanoclusters renders these species useful as optical probes that can be used in detecting single particle and molecular dynamics. We generate stable, and monodisperse samples of Ag nanoclusters as small as 1 nm in diameter, and find that through substitution of various stabilizer molecules we can precisely tune the size of the clusters over a 1-6 nm range of diameters, ensuring monodispersity and stability at every stage. These clusters also exhibit highly efficient, polarized luminescence upon two photon excitation at 800 nm and remain highly photostable, not exhibiting the deleterious blinking that occurs with many single-molecule fluorophores. In order to demonstrate the utility of these clusters as single-molecule probes, we track their emission polarization over long periods in deeply supercooled liquids such as 4'(octahydro-4,7-methano-5H-inden-5-yliden) bisphenol dimethyl ether (ODE). Our results suggest that these clusters can detect nanoscale dynamics with high sensitivity
Thesis (BS) — Boston College, 2004
Submitted to: Boston College. College of Arts and Sciences
Discipline: Chemistry
Discipline: College Honors Program
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Chang, Hsiang-Yu, and 張翔喻. "Synthesis and Applications of Luminescent Noble Metal Nanoclusters and Gold Hybrid Nanomaterials." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/06480638804593872031.

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Анотація:
博士
國立臺灣大學
化學研究所
105
Gold nanomaterials (Au NMs) and luminescent noble metal nanoclusters (NCs) exhibit great potential for sensing, imaging, characterization and biorecognition, due to their high selectivity, sensitivity and because of unique optical and catalytic properties. This thesis focuses on the preparation, characterization, and application of Au NMs and Au NCs. In Chapter 1, the background of Au NMs, Au NCs and the principle of laser desorption/ionization techniques of mass spectrometry are described. In Chapter 2, the details of our work using HgTe nanostructure-based matrices for SALDI-MS for the analyses of polyethylene glycol (PEG) derivatives as well as thiol-PEG-modified gold nanoparticles (PEGAu NPs) is explained. This approach allows the determination of PEG (molecular weights: 42,000 Da), PEG-Au NP species functional groups (e.g., carboxymethyl, amine, biotin), and biotinylated-PEG-Au NPs (biotin-PEG-Au NPs) to study the biotin-avidin biorecognition. We also prepared the antimicrobial gold/silver-tellurium nanostructures (Au/Ag-Te NSs) which possessed superior antimicrobial activity toward Escherichia coli (E. coli), Salmonella enterica serovar Enteritidis (S. enteritidis), and Staphylococcus aureus (S. aureus) as described in Chapter 3. In Chapter 4, the effect of controlled ligand density of 11-mercaptoundecanoic acid (11-MUA) on the gold nanodots (Au NDs) is described. We could achieve the detection of total inorganic and organic mercury ions in complex biological urine and plasma samples, as well as in fish sample. Photoluminescent L-cysteine (Cys)-capped gold nanoclusters (CysAu NCs) via NaBH4-mediated reduction of aggregated coordination polymers (supramolecules) of [CysAu(I)]n were also synthesized as mention in Chapter 5. Based on these studies, we demonstrated that the photoluminescence and structural properties of Au NCs are mediated by the intermolecular forces of thiol ligands. Accordingly, we have demonstrated that novel SALDI-MS approach allows rapid detection of macromolecules, and suggested that Au/Ag−Te NSs holds great potential as effective antimicrobial drugs. We also developed nanosensor for the rapid determination of total Hg concentration in real sample. Finally, our study also affords insights into the bottom-up synthesis of photoluminescent Au NCs from thiol-ligandAu(I) complexes and supramolecules.
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3

Kuppan, Balamurugan. "Self-assembly of Luminescent Metal Nanoclusters, Supramolecular Bile salt based Gels and their Soft Nanocomposites." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5421.

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Книги з теми "Luminescent Metal Nanoclusters"

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Luminescent Metal Nanoclusters. Elsevier, 2022. http://dx.doi.org/10.1016/c2020-0-03396-7.

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2

Mathew, Meegle S., Sabu Thomas, Joseph Kuruvilla, and Saritha Appukuttan. Luminescent Metal Nanoclusters: Synthesis, Characterisation and Applications. Elsevier Science & Technology, 2022.

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3

Mathew, Meegle S., Sabu Thomas, Joseph Kuruvilla, and Saritha Appukuttan. Luminescent Metal Nanoclusters: Synthesis, Characterisation and Applications. Elsevier Science & Technology, 2022.

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Частини книг з теми "Luminescent Metal Nanoclusters"

1

Ye, Bang-Ce, Min Zhang, and Bin-Cheng Yin. "Metal-Nanoclusters-Based Luminescent Probe Design and Its Application." In SpringerBriefs in Molecular Science, 65–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29543-0_5.

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2

Yuvasri, Genji Srinivasulu, Nirmal Goswami, and Jianping Xie. "AIE-Type Metal Nanoclusters: Synthesis, Luminescence, Fundamentals and Applications." In Principles and Applications of Aggregation-Induced Emission, 265–89. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-99037-8_10.

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3

Sun, H. T. "Highly Luminescent Metal Nanocluster Molecules." In Supra-Materials Nanoarchitectonics, 33–46. Elsevier, 2017. http://dx.doi.org/10.1016/b978-0-323-37829-1.00002-x.

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4

Fron, Eduard. "Zeolites as Scaffolds for Metal Nanoclusters." In Advances in Geopolymer-Zeolite Composites - Synthesis and Characterization. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96876.

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Анотація:
This chapter critically reviews the studies related to structural and photophysical properties of metal clusters within zeolites matrices and summarizes the progress made in understanding the host-guest interactions. The goal is to provide useful insight into the nature of such interactions and experiments used in identifying the excited state dynamics and the reaction mechanisms leading to the emitting species. Especially interesting are the combined experimental and computational approaches used to elucidate the structures and electronic transition of clusters inside the cavity. Although a number of excellent research articles have been published in the last years they only cover rather specific areas like organic photochemistry, confinement, charge transfer, theoretical modeling or photostimulated luminescence.
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