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DNA-directed Synthesis of PAMAM dendrimer Nanoclusters

Nanoclusters (NCs) of several to hundreds of atoms in size are prospective functional units for future nanomaterials originating in their unique, size-specific properties. To explore the field of NC-based materials science, the development of large-scale, size-exclusive synthesis methods is in high demand, as one can see from the successful evolution of fullerene science. We have developed a large-scale synthesis method for main group-based NC compounds by scaling up the clean dry-process with a high-power impulse magnetron sputtering. The 100 mg scale synthesis of binary NCs of M@Si16 (M = Ti and Ta) stabilized by poly(ethylene glycol) dimethyl ether enables us to characterize their structures by an array of methods, for example, mass spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, and 29Si nuclear magnetic resonance. Spectroscopic evidence indicates that the M@Si16 NCs are the metal-encapsulating tetrahedral silicon-cage structure satisfying the 68 electrons, closed-electronic-shell superatom.

Nanocomposites: synthesis, structure, properties and …

Zn/Cu@BSA nanoclusters with strong florescence were synthesised using zinc nitrate, copper nitrate, and bovine serum albumin (BSA) as a stabilising agent, and were used for the detection of H2S poisoning based on fluorescence quenching due to the formation of a metal–sulfide precipitate.

Green Synthesis of Metallic Nanoparticles via ..

T1 - Development of Integrated Dry-Wet Synthesis Method for Metal Encapsulating Silicon Cage Superatoms of M@Si16 (M = Ti and Ta)

The chapters cover both experimental and theoretical studies and range from silicon carbide nanoclusters to chemical vapor deposition of clusters on surfaces.

AB - Nanoclusters (NCs) of several to hundreds of atoms in size are prospective functional units for future nanomaterials originating in their unique, size-specific properties. To explore the field of NC-based materials science, the development of large-scale, size-exclusive synthesis methods is in high demand, as one can see from the successful evolution of fullerene science. We have developed a large-scale synthesis method for main group-based NC compounds by scaling up the clean dry-process with a high-power impulse magnetron sputtering. The 100 mg scale synthesis of binary NCs of M@Si16 (M = Ti and Ta) stabilized by poly(ethylene glycol) dimethyl ether enables us to characterize their structures by an array of methods, for example, mass spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, and 29Si nuclear magnetic resonance. Spectroscopic evidence indicates that the M@Si16 NCs are the metal-encapsulating tetrahedral silicon-cage structure satisfying the 68 electrons, closed-electronic-shell superatom.

Journal of Nanoscience and Nanotechnology

28. Xie J, Zheng Y, Ying JY. Protein-Directed Synthesis of Highly Fluorescent Gold Nanoclusters.  2009;131:888-9

a) Scheme of synthesizing highly red fluorescent gold nanoclusters. b) Scheme of synthesizing near-infrared fluorescent Ag2S quantum dots with the presence of albumin as the template and its conjugation with anti-VEGF mAb. c) Scheme of synthesizing Gd:CuS@BSA hybrid theranostic agents. Figures (a) and (c) adapted with permissions from [, ].

N2 - Nanoclusters (NCs) of several to hundreds of atoms in size are prospective functional units for future nanomaterials originating in their unique, size-specific properties. To explore the field of NC-based materials science, the development of large-scale, size-exclusive synthesis methods is in high demand, as one can see from the successful evolution of fullerene science. We have developed a large-scale synthesis method for main group-based NC compounds by scaling up the clean dry-process with a high-power impulse magnetron sputtering. The 100 mg scale synthesis of binary NCs of M@Si16 (M = Ti and Ta) stabilized by poly(ethylene glycol) dimethyl ether enables us to characterize their structures by an array of methods, for example, mass spectroscopy, X-ray photoemission spectroscopy, Raman spectroscopy, and 29Si nuclear magnetic resonance. Spectroscopic evidence indicates that the M@Si16 NCs are the metal-encapsulating tetrahedral silicon-cage structure satisfying the 68 electrons, closed-electronic-shell superatom.

The modulation on luminescence of Er3+-doped silicon-rich oxide films by the structure evolution of silicon nanoclusters Nanosca
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Strategies for Preparing Albumin-based Nanoparticles …

57. Wang C, Wang C, Xu L. . Protein-directed synthesis of pH-responsive red fluorescent copper nanoclusters and their applications in cellular imaging and catalysis. 2014;6:1775-81

The Hersam Research Group :: Home

51. Chen YN, Chen PC, Wang CW. . One-pot synthesis of fluorescent BSA-Ce/Au nanoclusters as ratiometric pH probes. 2014;50:8571-4

CSIRO PUBLISHING | Australian Journal of Chemistry

46. Zhang W, Ye J, Zhang Y. . One-step facile synthesis of fluorescent gold nanoclusters for rapid bio-imaging of cancer cells and small animals. 2015;5:63821-6

C | An Open Access Carbon Research Journal from MDPI

Spherical nanoclusters of FeNbTiO (=0.01, 0.05, 0.1, 0.2) were prepared by sol–gel method. The total synthesis was carried out in two steps. In the first step, the stock solutions of ferric nitrate, titanium tartrate and niobium tartrate solutions were prepared. The solution of the titanium and niobium tartrate complexes, which are not commercially available, were prepared in the laboratory from its hydrated oxide (NbO·HO and TiO·HO); the details of the preparation process are discussed elsewhere . In the second step, stoichiometric amounts of titanium tartrate (100mL; 0.2545gL), niobium tartrate (1.72mL; 0.2167gL), ferric nitrate (0.088g, 0.21mmol) with triethanolamine (3mL) and 20mL of absolute ethanol solutions were taken in a beaker as per the predetermined chemical compositions (example shown for =0.01) with constant stirring for 30min at room temperature. Then the mixture was adjusted to a pH of 9.0 with 6M NaOH solution, and stirred for 30min, yielding a stable light yellow homogeneous emulsion. The resulting mixture was transferred into a 100mL Teflon-lined stainless steel autoclave and heated to 150°C for 20h under auto generated pressure.

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