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Journal articles on the topic 'Fluorescence Gold Clusters'

Author: Grafiati

Published: 7 September 2023

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1

Raj, D. Rithesh, and C. Sudarsanakumar. "Surface Plasmon Resonance Based Fiber Optic Dopamine Sensor Using BSA-Gold Cluster/Polymer Composites." Advanced Science Letters 24, no. 8 (2018): 5598–602. http://dx.doi.org/10.1166/asl.2018.12157.

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Highly luminescent BSA-gold clusters were synthesized and its polymer composites were prepared using PVA, PVP and PVA/PVP blend. UV-visible spectroscopy, Photoluminescence, Fourier transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and particle size analysis (DLS) were performed to determine the formation of gold clusters. Luminescence properties of BSA-Gold cluster and its polymer composites were evaluated and it is found that all polymers quench the fluorescence at 650 nm while PVP and PVP/PVA blend enhance the fluorescence at 450 nm. Further, a Surface Plasmon Re

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Carotenuto, G., S. De Nicola, and L. Nicolais. "Fluorescent Thiol-Derivatized Gold Clusters Embedded in Polymers." Advances in Materials Science and Engineering 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/548284.

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Owing to aurophilic interactions, linear and/or planar Au(I)-thiolate molecules spontaneously aggregate, leading to molecular gold clusters passivated by a thiolate monolayer coating. Differently from the thiolate precursors, such cluster compounds show very intensive visible fluorescence characteristics that can be tuned by alloying the gold clusters with silver atoms or by conjugating the electronic structure of the metallic core with unsaturated electronic structures in the organic ligand through the sulphur atom. Here, the photoluminescence features of some examples of these systems are sh

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3

CAROTENUTO, G., A. LONGO, L. DE PETROCELLIS, et al. "SYNTHESIS OF MOLECULAR GOLD CLUSTERS WITH LUMINESCENCE PROPERTIES BY MERCAPTIDE THERMOLYSIS IN POLYMER MATRICES." International Journal of Nanoscience 06, no. 01 (2007): 65–69. http://dx.doi.org/10.1142/s0219581x07004225.

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Highly fluorescent Au /polystyrene nanocomposite films have been prepared by thermal decomposition at 250°C of gold mercaptide molecules (dodecyl-mercaptide of gold(I), C 12 H 25 SAu ) dissolved in polystyrene. Owing to a continuous nucleation of metallic phase generated by the thermolysis reaction, molecular gold clusters, which are characterized by fluorescence properties because of the very small size, can be obtained by this very simple technique.

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4

Ganguly, Mainak, Jayasmita Jana, Anjali Pal, and Tarasankar Pal. "Synergism of gold and silver invites enhanced fluorescence for practical applications." RSC Advances 6, no. 21 (2016): 17683–703. http://dx.doi.org/10.1039/c5ra26430h.

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5

Qu, Xiaochao, Yichen Li, Lei Li, Yanran Wang, Jingning Liang, and Jimin Liang. "Fluorescent Gold Nanoclusters: Synthesis and Recent Biological Application." Journal of Nanomaterials 2015 (2015): 1–23. http://dx.doi.org/10.1155/2015/784097.

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Fluorescent gold nanoclusters (AuNCs) have been extensively studied due to their unique construction and distinctive properties, which place them between single metal atoms and larger nanoparticles. The dimension of AuNCs is comparable to the Fermi wavelength of electrons, which lead to size-dependent fluorescence and other molecule-like properties. In this review, we summarize various synthesis strategies of fluorescent AuNCs and recent advances of biological applications such as biosensing, biolabeling, and bioimaging. The synthetic methods are considered as two routes: “Atoms to Clusters” a

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Zhang, Yuwei, Ping Song, Tiankai Chen, et al. "Unique size-dependent nanocatalysis revealed at the single atomically precise gold cluster level." Proceedings of the National Academy of Sciences 115, no. 42 (2018): 10588–93. http://dx.doi.org/10.1073/pnas.1805711115.

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Atomically precise metal clusters have attracted increasing interest owing to their unique size-dependent properties; however, little has been known about the effect of size on the catalytic properties of metal clusters at the single-cluster level. Here, by real-time monitoring with single-molecule fluorescence microscopy the size-dependent catalytic process of individual Au clusters at single-turnover resolution, we study the size-dependent catalytic behaviors of gold (Au) clusters at the single-cluster level, and then observe the strong size effect on the catalytic properties of individual A

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7

Dolai, Santanu, Srestha Basu, and Anumita Paul. "Aggregation induced delayed green fluorescence from assembly of gold nanoclusters: an advanced probe for “background free” pyrophosphate recognition." Materials Advances 3, no. 7 (2022): 3286–92. http://dx.doi.org/10.1039/d1ma01095f.

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8

Sugiuchi, Mizuho, Junichi Maeba, Nobuyuki Okubo, Munetaka Iwamura, Koichi Nozaki, and Katsuaki Konishi. "Aggregation-Induced Fluorescence-to-Phosphorescence Switching of Molecular Gold Clusters." Journal of the American Chemical Society 139, no. 49 (2017): 17731–34. http://dx.doi.org/10.1021/jacs.7b10201.

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9

Battista, Edmondo, Maria Laura Coluccio, Alessandro Alabastri, et al. "Metal enhanced fluorescence on super-hydrophobic clusters of gold nanoparticles." Microelectronic Engineering 175 (May 2017): 7–11. http://dx.doi.org/10.1016/j.mee.2016.12.013.

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10

Moreaud, Laureen, Janak Prasad, Serges Mazères, et al. "Facile one-pot synthesis of white emitting gold nanocluster solutions composed of red, green and blue emitters." Journal of Materials Chemistry C 10, no. 6 (2022): 2263–70. http://dx.doi.org/10.1039/d1tc04874k.

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11

Paccaud, J. P., J. L. Carpentier, and J. A. Schifferli. "Direct evidence for the clustered nature of complement receptors type 1 on the erythrocyte membrane." Journal of Immunology 141, no. 11 (1988): 3889–94. http://dx.doi.org/10.4049/jimmunol.141.11.3889.

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Abstract C receptors 1 (CR1) of human E are involved in the transport of C3b-coated immune complexes (IC) in the circulation. Many studies have suggested that the binding of IC to E is multivalent. This would require CR1 to be clustered on the cell membrane, but no direct evidence for such clustering is available. We studied the distribution of CR1 on human E by immunofluorescence and shadow-casting immuno-electron microscopy techniques with the use of a monoclonal anti-CR1 antibody followed by FITC- or gold-conjugated second antibodies, respectively. By immunofluorescence, CR1 appeared as sma

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12

Nair, Lakshmi V., Shaiju S. Nazeer, Ramapurath S. Jayasree, and Ayyappanpillai Ajayaghosh. "Fluorescence Imaging Assisted Photodynamic Therapy Using Photosensitizer-Linked Gold Quantum Clusters." ACS Nano 9, no. 6 (2015): 5825–32. http://dx.doi.org/10.1021/acsnano.5b00406.

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13

Liu, Xianhu, Yishi Wu, Shuanghao Li, et al. "Quantum-size-effect accommodation of gold clusters with altered fluorescence of dyes." RSC Advances 5, no. 39 (2015): 30610–16. http://dx.doi.org/10.1039/c4ra17239f.

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14

Gaio, Michele, Marta Castro-Lopez, Jan Renger, Niek van Hulst, and Riccardo Sapienza. "Percolating plasmonic networks for light emission control." Faraday Discussions 178 (2015): 237–52. http://dx.doi.org/10.1039/c4fd00187g.

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Optical nanoantennas have revolutionised the way we manipulate single photons emitted by individual light sources in a nanostructured photonic environment. Complex plasmonic architectures allow for multiscale light control by shortening or stretching the light wavelength for a fixed operating frequency, meeting the size of the emitter and that of propagating modes. Here, we study self-assembled semi-continuous gold films and lithographic gold networks characterised by large local density of optical state (LDOS) fluctuations around the electrical percolation threshold, a regime where the surfac

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Yang, Yayu, Ailing Han, Ruixue Li, Guozhen Fang, Jifeng Liu, and Shuo Wang. "Synthesis of highly fluorescent gold nanoclusters and their use in sensitive analysis of metal ions." Analyst 142, no. 23 (2017): 4486–93. http://dx.doi.org/10.1039/c7an01348e.

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Li, Yan, Aowei Zhao, Jieqiong Wang, Jieyu Yu, Fei Xiao, and Hongcheng Sun. "Highly Bright Gold Nanowires Arrays for Sensitive Detection of Urea and Urease." Nanomaterials 12, no. 22 (2022): 4023. http://dx.doi.org/10.3390/nano12224023.

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In this work, highly fluorescent gold nanowire arrays (Au NWs) are successfully synthesized by assembling Zn2+ ions and non-emissive oligomeric gold-thiolate clusters using mercaptopropionic acid both as a reducing agent and a growth ligand. The synthesized Au NWs exhibited strong bluish green fluorescence with an absolute quantum yield up to 32% and possessed ultrasensitive pH stimuli-responsive performance in the range of 7.0–7.8. Based on the excellent properties of the as-prepared nanowire arrays, we developed a facile, sensitive, and selective fluorescent method for quantitative detection

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17

Li, Luo, Zhen Li, Hui Zhang, Shoucun Zhang, Irfan Majeed, and Bien Tan. "Effect of polymer ligand structures on fluorescence of gold clusters prepared by photoreduction." Nanoscale 5, no. 5 (2013): 1986. http://dx.doi.org/10.1039/c2nr33693f.

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18

Gao, Duyang, Yubin Liu, Yating Wang, and Zhen Yuan. "Protein-modified ultra-small gold clusters for dual-modal in vivo fluorescence/photoacoustic imaging." Quantitative Imaging in Medicine and Surgery 8, no. 3 (2018): 326–32. http://dx.doi.org/10.21037/qims.2018.03.01.

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19

Du, Yanlin, Hui Liu, Jiaming Liang, et al. "Protein-assisted formation of gold clusters-MnO2 nanocomposite for fluorescence imaging of intracellular glutathione." Talanta 209 (March 2020): 120524. http://dx.doi.org/10.1016/j.talanta.2019.120524.

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20

Shang, Li, Naghmeh Azadfar, Florian Stockmar, et al. "One-Pot Synthesis of Near-Infrared Fluorescent Gold Clusters for Cellular Fluorescence Lifetime Imaging." Small 7, no. 18 (2011): 2614–20. http://dx.doi.org/10.1002/smll.201100746.

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21

Tian, Ye, Ming Wei, Lijun Wang, Yuankai Hong, Dan Luo, and Yinlin Sha. "Two-Photon Time-Gated In Vivo Imaging of Dihydrolipoic-Acid-Decorated Gold Nanoclusters." Materials 14, no. 24 (2021): 7744. http://dx.doi.org/10.3390/ma14247744.

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Due to the unique advantages of two-photon technology and time-resolved imaging technology in the biomedical field, attention has been paid to them. Gold clusters possess excellent physicochemical properties and low biotoxicity, which make them greatly advantageous in biological imaging, especially for in vivo animal imaging. A gold nanocluster was coupled with dihydrolipoic acid to obtain a functionalized nanoprobe; the material displayed significant features, including a large two-photon absorption cross-section (up to 1.59 × 105 GM) and prolonged fluorescence lifetime (>300 ns). The two-

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Cheng, Pearl Pui Hang, Debbie Silvester, Gangli Wang, Gregory Kalyuzhny, Alicia Douglas, and Royce W. Murray. "Dynamic and Static Quenching of Fluorescence by 1−4 nm Diameter Gold Monolayer-Protected Clusters." Journal of Physical Chemistry B 110, no. 10 (2006): 4637–44. http://dx.doi.org/10.1021/jp057028n.

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23

Mishra, Dinesh, Fadi Aldeek, Eric Lochner, et al. "Aqueous Growth of Gold Clusters with Tunable Fluorescence Using Photochemically Modified Lipoic Acid-Based Ligands." Langmuir 32, no. 25 (2016): 6445–58. http://dx.doi.org/10.1021/acs.langmuir.6b00950.

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24

Yang, Guanhua, Han Zhang, Yueqi Wang, Xianhu Liu, Zhixun Luo, and Jiannian Yao. "Enhanced stability and fluorescence of mixed-proteins-protected gold/silver clusters used for mercury ions detection." Sensors and Actuators B: Chemical 251 (November 2017): 773–80. http://dx.doi.org/10.1016/j.snb.2017.05.019.

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25

Wang, Ruizhi, Guofeng Zhou, Yuchan Yang, et al. "Prostate-Specific Membrane Antigen-1-Mediated Au@SiO₂@Au Core–Shell Nanoparticles: Targeting Prostate Cancer to Enhance Photothermal Therapy and Fluorescence Imaging." Journal of Biomedical Nanotechnology 18, no. 1 (2022): 158–65. http://dx.doi.org/10.1166/jbn.2022.3229.

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The advantages of deep tissue penetration and the high spatial accuracy of photothermal therapy have been widely studied. Gold, as a photothermal material, has received particular attention. Different sizes and shapes of gold have been studied and characterized for their varying photothermal properties. The core–shell structure of gold nanoparticles and silica enhances the photothermal conversion through the coupling effect between gold clusters on the material’s surface. With excellent photothermal conversion performance, the core–shell nanoparticles can quickly reach 40 °C in 200 s under the

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Polavarapu, Lakshminarayana, Manoj Manna, and Qing-Hua Xu. "Biocompatible glutathione capped gold clusters as one- and two-photon excitation fluorescence contrast agents for live cells imaging." Nanoscale 3, no. 2 (2011): 429–34. http://dx.doi.org/10.1039/c0nr00458h.

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27

Stelate, Ayoub, Eva Tihlaříková, Kateřina Schwarzerová, Vilém Neděla, and Jan Petrášek. "Correlative Light-Environmental Scanning Electron Microscopy of Plasma Membrane Efflux Carriers of Plant Hormone Auxin." Biomolecules 11, no. 10 (2021): 1407. http://dx.doi.org/10.3390/biom11101407.

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Fluorescence light microscopy provided convincing evidence for the domain organization of plant plasma membrane (PM) proteins. Both peripheral and integral PM proteins show an inhomogeneous distribution within the PM. However, the size of PM nanodomains and protein clusters is too small to accurately determine their dimensions and nano-organization using routine confocal fluorescence microscopy and super-resolution methods. To overcome this limitation, we have developed a novel correlative light electron microscopy method (CLEM) using total internal reflection fluorescence microscopy (TIRFM) a

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28

Schaeffer, Nicolas, Bien Tan, Calum Dickinson, et al. "Fluorescent or not? Size-dependent fluorescence switching for polymer-stabilized gold clusters in the 1.1–1.7 nm size range." Chemical Communications, no. 34 (2008): 3986. http://dx.doi.org/10.1039/b809876j.

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29

Prado, Adilson R., Danilo Oliveira de Souza, Jairo P. Oliveira, et al. "Probing the Sulfur-Modified Capping Layer of Gold Nanoparticles Using Surface Enhanced Raman Spectroscopy (SERS) Effects." Applied Spectroscopy 71, no. 12 (2017): 2670–80. http://dx.doi.org/10.1177/0003702817724180.

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Gold nanoparticles (AuNP) exhibit particular plasmonic properties when stimulated by visible light, which makes them a promising tool to many applications in sensor technology and biomedical applications, especially when associated to sulfur-based compounds. Sulfur species form a great variety of self-assembled structures that cap AuNP and this interaction rules the optical and plasmonic properties of the system. Here, we report the behavior of citrate-stabilized gold nanospheres in two distinct sulfur colloidal solutions, namely, thiocyanate and sulfide ionic solutions. Citrate-capped gold na

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30

Naudon, A., and D. Thiaudiere. "Grazing-Incidence Small-Angle Scattering. Morphology of Deposited Clusters and Nanostructure of Thin Films." Journal of Applied Crystallography 30, no. 5 (1997): 822–27. http://dx.doi.org/10.1107/s002188989700099x.

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It is shown that grazing-incidence small-angle X-ray scattering (GISAXS) is a new experimental technique that combines both grazing incidence and scattering at low angles. The experiments are carried out at or near the critical angle: the result is a considerably enhanced surface sensitivity. It allows morphological characterization of aggregates deposited or gathered on a flat substrate, such as silicon wafer or Coming glass. The full potential of this technique is realized when using a synchrotron source (flux, collimation and choice of wavelength in order to avoid fluorescence or to perform

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31

Bonifazi, Giuseppe, Giuseppe Capobianco, Roberta Palmieri, and Silvia Serranti. "EVALUATION OF ELEMENTS DISTRIBUTION IN PRINTED CIRCUIT BOARDS FROM MOBILE PHONES BY MICRO X-RAY FLUORESCENCE." Detritus, no. 14 (March 31, 2021): 78–85. http://dx.doi.org/10.31025/2611-4135/2021.14067.

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A micro X-ray fluorescence-based approach for the chemical characterization of spent printed circuit boards (SPCB) from mobile phones was applied. More in detail, twelve spent mobile phones were grouped in three clusters depending on brands, models and release year and a study to evaluate the technological evolution of SPCBs over time was carried out. Precious and dangerous elements were investigated and some differences between samples belonging to the different groups were detected. For instance, the distribution of gold on the SPCB layers was more widespread for the older analyzed samples,

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Han, Ming, Yi Wang, Gang Xiang, et al. "Construction of ratiometric fluorescence determination of ethylene thiourea in foods based on the nanocomposite combining with sulfur quantum dots and gold clusters." Microchemical Journal 189 (June 2023): 108549. http://dx.doi.org/10.1016/j.microc.2023.108549.

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33

Hess, Michael W., Iris M. Krainer, Przemyslaw A. Filipek, et al. "Advanced Microscopy for Liver and Gut Ultrastructural Pathology in Patients with MVID and PFIC Caused by MYO5B Mutations." Journal of Clinical Medicine 10, no. 9 (2021): 1901. http://dx.doi.org/10.3390/jcm10091901.

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Mutations in the actin motor protein myosinVb (myo5b) cause aberrant apical cargo transport and the congenital enteropathy microvillus inclusion disease (MVID). Recently, missense mutations in myo5b were also associated with progressive familial intrahepatic cholestasis (MYO5B-PFIC). Here, we thoroughly characterized the ultrastructural and immuno-cytochemical phenotype of hepatocytes and duodenal enterocytes from a unique case of an adult MYO5B-PFIC patient who showed constant hepatopathy but only periodic enteric symptoms. Selected data from two other patients supported the findings. Advance

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34

Powell, Richard D., Carol M. R. Halsey, David L. Spector, Shelley L. Kaurin, Jennifer McCann, and James F. Hainfeld. "A Covalent Fluorescent–Gold Immunoprobe: Simultaneous Detection of a Pre-mRNA Splicing Factor by Light and Electron Microscopy." Journal of Histochemistry & Cytochemistry 45, no. 7 (1997): 947–56. http://dx.doi.org/10.1177/002215549704500704.

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Immunoprobes that combine a fluorescent label with a 1.4-nm gold cluster compound have been prepared by covalent conjugation with polyclonal antibody Fab' fragments. These new immunoconjugates allow the collection of two complementary sets of data, from fluorescence and electron microscopy, from a single labeling experiment. We find that incorporation of one or more fluorescein moieties into the coordinated ligands of the 1.4-nm Nanogold gold cluster label yields a stable, dual-function immunolabel in which fluorescence quenching is negligible. In a second synthetic strategy, Nanogold and fluo

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Giraldo-Castillo, Nicolas A., Sneha Berry, Julie Stein, et al. "Multiplex Immunofluorescence Image Cytometry Combined with Spatially-Resolved UMAP Defines Novel Immune Prognostic Biomarkers in Metastatic Melanoma." Journal of Immunology 204, no. 1_Supplement (2020): 243.3. http://dx.doi.org/10.4049/jimmunol.204.supp.243.3.

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Abstract Multiplex IF (mIF) provides a detailed characterization of spatial relationships and complex cell phenotypes in the tumor microenvironment. However, the data-analysis and visualization is complex and time-consuming. Here, we developed a platform to analyze mIF data through flow cytometry workflows (image cytometry), while maintaining spatial information, and applied it to tissue microarrays of metastatic melanoma specimens (n=93; 6-plex mIF panel: PD-1, PD-L1, CD163, CD8, FoxP3, Sox10/S100). Then, we used a UMAP-based approach driven by cell-to-cell distances (rather than fluorescence

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36

Powell, Richard D., Carol M. R. Halsey, Edmund Gutierrez, James F. Hainfeld, and Frederic R. Furuya. "Dual-Labeled Probes for Fluorescence and Electron Microscopy." Microscopy and Microanalysis 4, S2 (1998): 992–93. http://dx.doi.org/10.1017/s1431927600025083.

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Fluorescein and the 1.4 nm Nanogold cluster have been separately attached to polyclonal antibody Fab’ fragments to generate combined fluorescent and gold secondary antibody probes (1, 2), and in comparisons with Nanogold, colloidal gold and fluorescein-labeled secondary antibodies, neither label was found to be significantly compromised by the presence of the other. The proximity to a gold label with which a fluorophore retains sufficient fluorescence emission intensity to be useful is limited by non-radiative fluorescence resonance energy transfer (FRET) (3). This is a function of the degree

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Meijne, A. M., M. H. Driessens, G. La Riviere, D. Casey, C. A. Feltkamp, and E. Roos. "LFA-1 integrin redistribution during T-cell hybridoma invasion of hepatocyte cultures and manganese-induced adhesion to ICAM-1." Journal of Cell Science 107, no. 9 (1994): 2557–66. http://dx.doi.org/10.1242/jcs.107.9.2557.

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We have reported previously that the integrin LFA-1 is essential for metastasis of T-cell hybridomas to the liver. We show here that hepatocytes isolated from normal non-inflamed rat liver express intercellular adhesion molecule-1 (ICAM-1) at the dorsal surface and more prominently at the lateral and substratum-adherent surfaces. Anti-rat ICAM-1 mAb inhibited adhesion of TAM8C4 T-cell hybridoma cells to hepatocytes. Invasion between hepatocytes was not affected, but this is probably due to lack of penetration of the mAb between the hepatocytes. In all hepatocyte-adherent TAM8C4 cells, LFA-1 wa

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McCabe, Chantal E., Erik Jessen, Daniel R. O'Brien, Julia E. Wiedmeier-Nutor, Susan L. Slager, and Esteban Braggio. "Abstract 3352: Identifying copy number variations in chronic lymphocytic leukemia using targeted next generation sequencing." Cancer Research 82, no. 12_Supplement (2022): 3352. http://dx.doi.org/10.1158/1538-7445.am2022-3352.

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Abstract Chronic lymphocytic leukemia (CLL) is characterized by multiple copy number abnormalities (CNVs) with prognostic value. Identifying these structural variations is central to defining CLL pathogenesis, risk stratification, and therapeutic approaches. Fluorescence in situ hybridization (FISH) is the clinical gold standard in detecting prognostic CNVs in CLL. However, next-generation sequencing (NGS) techniques have become more readily available for clinical genomic applications and can also be used to identify CNVs. Here we present bioinformatic methods to accurately identify CNVs in CL

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Takizawa, Toshihiro, and John M. Robinson. "Analysis of Antiphotobleaching Reagents for use with FluoroNanogold in Correlative Microscopy." Journal of Histochemistry & Cytochemistry 48, no. 3 (2000): 433–36. http://dx.doi.org/10.1177/002215540004800313.

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Correlative microscopy is an important approach for bridging the resolution gap between fluorescence and electron microscopy. We have employed FluoroNanogold (FNG) as the detection system in these types of studies. This immunoprobe consists of a gold cluster compound to which a fluorochrome-labeled antibody is covalently linked. In these preparations, the fluorescence signal from FNG is first recorded then the gold cluster compound is subjected to a silver enhancement reaction before examination by electron microscopy. Potential complications are those associated with photochemical reactions t

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Wang, Xiaojuan, Hua He, Yanan Wang, et al. "Active tumor-targeting luminescent gold clusters with efficient urinary excretion." Chemical Communications 52, no. 59 (2016): 9232–35. http://dx.doi.org/10.1039/c6cc03814j.

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Hainfeld, James F., and Richard D. Powell. "New Frontiers in Gold Labeling." Journal of Histochemistry & Cytochemistry 48, no. 4 (2000): 471–80. http://dx.doi.org/10.1177/002215540004800404.

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Recent advances in gold technology have led to probes with improved properties and performance for cell biologists: higher labeling density, better sensitivity, and greater penetration into tissues. Gold clusters, such as the 1.4-nm Nanogold, are gold compounds that can be covalently linked to Fab′ antibody fragments, making small and stable probes. Silver enhancement then makes these small gold particles easily visible by EM, LM, and directly by eye. Another advance is the combination of fluorescent and gold probes for correlative microscopy. Chemical crosslinking of gold particles to many bi

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Powell, Richard D., Vishwas N. Joshi, Carol M. R. Halsey, et al. "Combined Cy3 / Nanogold Conjugates for ImmunocytoChemistry and in Situ Hybridization." Microscopy and Microanalysis 5, S2 (1999): 478–79. http://dx.doi.org/10.1017/s1431927600015713.

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Fluorescein and the 1.4 nm Nanogold® gold cluster label may be incorporated into a single Fab’ immunoprobe by separate cross-linking reactions, to give a probe which labels antigenic sites in a single step for correlative fluorescence and electron microscope visualization. These probes show high labeling density, labeling a pre-mRNA splicing factor in the HeLa cell nucleus; Microtubules were also densely labeled using fluorescence, other optical modalities, and electron microscopy; in a parallel experiment, a 5 nm colloidal gold probe gave only occasional labeling. We now describe Fab’ and str

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Senthamizhan, Anitha, Asli Celebioglu, and Tamer Uyar. "Ultrafast on-site selective visual detection of TNT at sub-ppt level using fluorescent gold cluster incorporated single nanofiber." Chemical Communications 51, no. 26 (2015): 5590–93. http://dx.doi.org/10.1039/c4cc01190b.

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Antonishyn, Nick A., Ryan R. McDonald, Edward L. Chan, et al. "Evaluation of Fluorescence-Based Amplified Fragment Length Polymorphism Analysis for Molecular Typing in Hospital Epidemiology: Comparison with Pulsed-Field Gel Electrophoresis for Typing Strains of Vancomycin-Resistant Enterococcus faecium." Journal of Clinical Microbiology 38, no. 11 (2000): 4058–65. http://dx.doi.org/10.1128/jcm.38.11.4058-4065.2000.

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Fluorescence-based amplified fragment length polymorphism (fbAFLP) is a novel assay based on the fluorescent analysis of an amplified subset of restriction fragments. The fbAFLP assay involves the selective PCR amplification of restriction fragments from a total digest of genomic DNA. The ligation of adapters with primer-specific sites coupled with primers containing selective nucleotides allowed the full potential of PCR to be realized while maintaining the advantages of restriction endonuclease analysis. Fluorescence-based fragment analysis with polyacrylamide gel electrophoresis provides th

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Nair, L. V., R. V. Nair, S. J. Shenoy, A. Thekkuveettil, and R. S. Jayasree. "Blood brain barrier permeable gold nanocluster for targeted brain imaging and therapy: an in vitro and in vivo study." Journal of Materials Chemistry B 5, no. 42 (2017): 8314–21. http://dx.doi.org/10.1039/c7tb02247f.

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Prisco, Umberto, Carl Leung, Chrisa Xirouchaki, Celine H. Jones, John K. Heath, and Richard E. Palmer. "Residue-specific immobilization of protein molecules by size-selected clusters." Journal of The Royal Society Interface 2, no. 3 (2005): 169–75. http://dx.doi.org/10.1098/rsif.2005.0032.

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The atomic force microscope (AFM), operating in contact mode, has been employed in buffer solution to study two proteins; (i) green fluorescent protein (GFP), from the hydromedusan jellyfish Aequorea victoria ; and (ii) human oncostatin M (OSM), in the presence of size-selected gold nanoclusters pinned on to a highly oriented pyrolytic graphite substrate. The AFM images have revealed immobilization of single molecules of OSM, which are strongly bound to the gold nanoclusters. Conversely, no strong immobilization has been observed for the GFP, as these molecules were easily displaced by the sca

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Phuc, Lam Gia, Phuong Que Tran Do, Hanh Kieu Thi Ta, et al. "Metal-Enhanced Fluorescence for Alpha-Fetoprotein Detection and for SERS Using Hybrid Nanoparticles of Magnetic Cluster Core—Plasmonic Shell Composite." Chemosensors 11, no. 1 (2023): 56. http://dx.doi.org/10.3390/chemosensors11010056.

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We demonstrated that the hybrid core–shell nanostructure of Fe3O4 (core) and gold (shell) could be a good substrate candidate both for metal-enhanced fluorescence (MEF) and surface-enhanced Raman spectroscopy (SERS). The magnetic properties of the core material could provide functionalities such as the magnetically induced aggregation/distribution of nanostructures to increase the hot-spot density, while the nano-thickness gold shell allows for the plasmonic enhancement of both fluorescence and SERS. The gold-capped magnetic (Fe3O4) nanoparticles (GMPs) were facilely synthesized using a newly

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Wu, Haiming, Ye-Guang Fang, Rajini Anumula, et al. "A mono-copper doped undeca-gold cluster with up-converted and anti-stokes emissions of fluorescence and phosphorescence." Nanoscale 13, no. 10 (2021): 5300–5306. http://dx.doi.org/10.1039/d0nr07624d.

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We have synthesized single crystals of a highly stable Cu-doped undeca-gold cluster protected by both triphenylphosphine (PPh<sub>3</sub>) and 2-pyridinethiol (-SPy) ligands, formulated as [Au<sub>11</sub>Cu<sub>1</sub>(PPh<sub>3</sub>)<sub>7</sub>(SPy)<sub>3</sub>]<sup>+</sup>.

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Samanta, Anupam, Basab B. Dhar, and R. Nandini Devi. "Ultrasmall Gold Cluster Arrays Encapsulated in Silica Nanospheres: Applications in Fluorescence Imaging and Catalysis." Journal of Physical Chemistry C 116, no. 2 (2012): 1748–54. http://dx.doi.org/10.1021/jp2093737.

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Esteve, Emmanuel, Solenn Reguer, Cédric Boissiere, et al. "Flyscan opportunities in medicine: the case of quantum rattle based on gold quantum dots." Journal of Synchrotron Radiation 24, no. 5 (2017): 991–99. http://dx.doi.org/10.1107/s1600577517009572.

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The new rapid scan method, Flyscan mode, implemented on the DiffAbs beamline at Synchrotron SOLEIL, allows fast micro-X-ray fluorescence data acquisition. It paves the way for applications in the biomedical field where a large amount of data is needed to generate meaningful information for the clinician. This study presents a complete set of data acquired after injection of gold-cluster-enriched mesoporous silica nanospheres, used as potential theranostic vectors, into rats. While classical X-ray fluorescence investigations (using step-by-step acquisitions) are based on a limited number of sam

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