Activating a Silver Lipoate Nanocluster with a Penicillin Backbone Induces a Synergistic Effect against S. aureus Biofilm

Autor: Marcos M. Alvarez, Priscilla Lopez, Humberto H Lara, Christine Moon, Elizabeth Orr, Jose L. Lopez-Ribot, David M. Black, Robert L. Whetten, Glen Baghdasarian

Publikováno v: ACS Omega, Vol 4, Iss 26, Pp 21914-21920 (2019)

Many antibiotic resistances to penicillin have been reported, making them obsolete against multiresistant bacteria. Because penicillins act by inhibiting cell wall production while silver particles...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba9a877e0cab4e6152a8a4a61bdfb792
https://doaj.org/article/7bc371dbd47e4f62bf5b18edb8326588

Triethylamine Solution for the Intractability of Aqueous Gold–Thiolate Cluster Anions: How Ion Pairing Enhances ESI-MS and HPLC of aq-Aun(pMBA)p

Autor: Germán Plascencia-Villa, Wendell P. Griffith, Robert L. Whetten, Fangzhi Yan, Marcos M. Alvarez, Stephan B. H. Bach, David M. Black

Publikováno v: The Journal of Physical Chemistry C. 121:10851-10857

Herein we disclose methods that greatly improve the solution- and gas-phase handling properties of larger aqueous-phase gold–thiolate clusters, which previously presented extreme technical obstacles to molecular analysis and size control, even as t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::69fbb8f05fa12608a3460d597c20e0ed
https://doi.org/10.1021/acs.jpcc.6b12073

Hidden Components in Aqueous 'Gold-144' Fractionated by PAGE: High-Resolution Orbitrap ESI-MS Identifies the Gold-102 and Higher All-Aromatic Au-pMBA Cluster Compounds

Autor: Marcos M. Alvarez, Wendell P. Griffith, David M. Black, Jenny Chen, Ignacio L. Garzón, Miguel Jose-Yacaman, Borries Demeler, Germán Plascencia-Villa, Robert L. Whetten

Publikováno v: The Journal of Physical Chemistry B. 120:6430-6438

Experimental and theoretical evidence reveals the resilience and stability of the larger aqueous gold clusters protected with p-mercaptobenzoic acid ligands (pMBA) of composition Aun(pMBA)p or (n, p). The Au144(pMBA)60, (144, 60), or gold-144 aqueous

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac84731bd3a7150b5736ff0eef7e34f4
https://doi.org/10.1021/acs.jpcb.6b04525

MicroED Structure of Au 146 (p-MBA) 57 at Subatomic Resolution Reveals a Twinned FCC Cluster

Autor: Marcos M. Alvarez, Simon C. Weiss, Sandra Vergara, Germán Plascencia-Villa, Hans Christian Weissker, Guillermo Calero, Guowu Lin, Miguel Jose Yacaman, Tamir Gonen, David M. Black, Michael W. Martynowycz, Christopher O. Barnes, Ulises Santiago, Robert L. Whetten, M. Jason de la Cruz, Xóchitl López-Lozano, Dylan A. Lukes

Publikováno v: Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, American Chemical Society, 2017, 8 (22), pp.5523-5530. ⟨10.1021/acs.jpclett.7b02621⟩
Journal of Physical Chemistry Letters, 2017, 8 (22), pp.5523-5530. ⟨10.1021/acs.jpclett.7b02621⟩

International audience; Solving the atomic structure of metallic clusters is fundamental to understanding their optical, electronic, and chemical properties. Herein we present the structure of the largest aqueous gold cluster, Au 146 (p-MBA) 57 (p-MB

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3edd3d2fba5416138c446281c6ef183
https://hal.archives-ouvertes.fr/hal-01720306/document

The colours of nanometric gold

Autor: Joseph T. Khoury, Marcos M. Alvarez, T. G. Schaaff, Richard B. Wyrwas, R. C. Price, Robert L. Whetten

Publikováno v: The European Physical Journal D. 43:91-95

A set of broad-range NIR-vis-UV optical absorption spectra, measured for selected gold-cluster thiolate compounds (GCTs, containing ~20 to 300 Au atoms), is consistently displayed and then analyzed within the dielectric-functions approach. The size-e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::92e0db0eb0015a60bf396e070d1d5a91
https://doi.org/10.1140/epjd/e2007-00117-6