A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Towards Controlled Synthesis of Water-Soluble Gold Nanoclusters : Synthesis and Analysis (2019)


Sokolowska, K., Malola, S., Lahtinen, M., Saarnio, V., Permi, P., Koskinen, K., Jalasvuori, M., Häkkinen, H., Lehtovaara, L., & Lahtinen, T. (2019). Towards Controlled Synthesis of Water-Soluble Gold Nanoclusters : Synthesis and Analysis. The Journal of Physical Chemistry C, 123(4), 2602-2612. https://doi.org/10.1021/acs.jpcc.8b11056


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Sokolowska, Karolina; Malola, Sami; Lahtinen, Manu; Saarnio, Ville; Permi, Perttu; Koskinen, Katariina; Jalasvuori, Matti; Häkkinen, Hannu; Lehtovaara, Lauri; Lahtinen, Tanja

Lehti tai sarja: The Journal of Physical Chemistry C

ISSN: 1932-7447

eISSN: 1932-7455

Julkaisuvuosi: 2019

Volyymi: 123

Lehden numero: 4

Artikkelin sivunumerot: 2602-2612

Kustantaja: American Chemical Society

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1021/acs.jpcc.8b11056

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Osittain avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/62927


Tiivistelmä

Water-soluble gold nanoclusters with well-defined molecular structures and stability possess particular biophysical properties making them excellent candidates for biological applications as well as for fundamental spectroscopic studies. The currently existing synthetic protocols for atomically monodisperse thiolate-protected gold nanoclusters (AuMPCs) have been widely expanded with organothiolates, yet the direct synthesis reports for water-soluble AuMPCs are still deficient. Here, we demonstrate a wet-chemistry pH-controlled synthesis of two large water-soluble nanoclusters utilizing p-mercaptobenzoic acid (pMBA), affording different sizes of plasmonic AuMPCs on the preparative scale (∼7 mg). AuMPCs are essentially homogenous in size and are stable in solution and the solid state. Number of characterization methods were used to gain detailed information about the size, symmetry, molecular composition, and structure of these systems, i.e., high-resolution transmission electron microscopy, powder X-ray diffraction, NMR, UV-vis, thermogravimetry, and polyacrylamide gel electrophoresis. On the basis of the conducted experimental analyses and computationally aided predictions it can be evidenced that both clusters exhibit twinned face-centered cubic symmetry with the molecular composition of Au210-230(pMBA)70-80 and Au426-442(pMBA)112-115, referred from now on as Au250 and Au500, respectively. For future reference, toxicity of both gold clusters in various concentrations on cultures of Gram-positive and Gram-negative bacteria was investigated.


YSO-asiasanat: nanohiukkaset; kulta; kemiallinen synteesi; synteesi

Vapaat asiasanat: gold nanoclusters


Liittyvät organisaatiot


Hankkeet, joissa julkaisu on tehty


OKM-raportointi: Kyllä

Raportointivuosi: 2019

JUFO-taso: 2


Viimeisin päivitys 2024-08-01 klo 18:33