Glutathione capped gold Au (SG)  clusters studied by isotope-resolved mass spectrometry

Hamouda, Ramzi; Bertorelle, Franck; Rayane, D.; Antoine, Rodolphe; Broyer, M.; Dugourd, Philippe

doi:10.1016/j.ijms.2012.10.008

Cited by 50 publications

(45 citation statements)

References 47 publications

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“…As lifetimes of microsecond range are characteristic for thiolic ligand-protected gold clusters [37,38,43], these lifetime values indicate cluster formation unambiguously. TRPL results thus provided evidence that H3 is also an ACP.…”

Section: Production Of Auqcs With Proteinsmentioning

confidence: 93%

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On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters

et al. 2013

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Novel pathways of the synthesis of photoluminescent gold quantum clusters (AuQCs) using biomolecules as reactants provide biocompatible products for biological imaging techniques. In order to rationalize the rules for the preparation of red-emitting AuQCs in aqueous phase using proteins or peptides, the role of different organic structural units was investigated. Three systems were studied: proteins, peptides, and amino acid mixtures, respectively. We have found that cysteine and tyrosine are indispensable residues. The SH/S-S ratio in a single molecule is not a critical factor in the synthesis, but on the other hand, the stoichiometry of cysteine residues and the gold precursor is crucial. These observations indicate the importance of proper chemical behavior of all species in a wide size range extending from the atomic distances (in the Au I -S semi ring) to nanometer distances covering the larger sizes of proteins assuring the hierarchical structure of the whole self-assembled system.

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Section: Production Of Auqcs With Proteinsmentioning

confidence: 93%

“…We detected the presence of AuQCs by measuring spectral properties of the reaction products. It is well known that the luminescence lifetime red-emitting gold clusters is in the range of microseconds [37,38,43]; …”

Section: Characterization Techniquesmentioning

confidence: 99%

On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters

et al. 2013

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“…In the case of Au NCs (i.e., for Au:Zw 1:1, Au:Zw 1:2, and Au:Zw 1:5), mass spectrometry is reckoned as a suited technique to determine the full size and the structure of metal NCs. [35][36][37][38][39][40] We previously attempted to determine specific magic clusters using matrix-assisted laser desorption ionization / time of flight (MALDI-Tof) technique on those types of NCs without any success. 28 Here, the high mass setting is optimized for the Au:Zw NCs.…”

Section: All Article Content Except Where Otherwise Noted Is Licensmentioning

confidence: 99%

Zwitterion functionalized gold nanoclusters for multimodal near infrared fluorescence and photoacoustic imaging

et al. 2017

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“…Complexes are formed by electrospraying metal salts with organic and biomolecular ligands. Their gas-phase structure [10][11][12][13][14], reactivity [15][16][17][18], optical properties, etc. are then examined by mass spectrometry.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ligated-metal species by laser vaporization electrospray ionization (LAVESI)

Vojković

Rayane

Bertorelle

et al. 2015

International Journal of Mass Spectrometry

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Glutathione capped gold Au (SG) clusters studied by isotope-resolved mass spectrometry

Cited by 50 publications

References 47 publications

On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters

On the selection and design of proteins and peptide derivatives for the production of photoluminescent, red-emitting gold quantum clusters

Zwitterion functionalized gold nanoclusters for multimodal near infrared fluorescence and photoacoustic imaging

Synthesis of ligated-metal species by laser vaporization electrospray ionization (LAVESI)

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