DataVXACS Applied Materials & InterfacesPaper
journal article·2018-01-10Open access

Atomically Precise Au25(SG)18 Nanoclusters: Rapid Single-Step Synthesis and Application in Photothermal Therapy

Sai Krishna Katla, Jie Zhang, Edison Castro, Ricardo A. Bernal, XiuJun Li

ACS Applied Materials & Interfaces· Volume 10· Issue 1
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Source abstract

Abstract

Remarkable recent advances on Au 25 (SR) 18 nanoclusters have led to significant applications in catalysis, sensing, and magnetism. However, the existing synthetic routes are complicated, particularly for the water-soluble Au 25 (SG) 18 nanoclusters. Here, we report a single-step concentration and temperature-controlled method for rapid synthesis of the Au 25 (SG) 18 nanoclusters in as little as 2 h without the need for low-temperature reaction or even stirring. A systematic time-based investigation was carried out to study the effects of volume, concentration, and temperature on the synthesis of these nanoclusters. Further, we discovered for the first time that the Au 25 (SG) 18 nanoclusters exhibit excellent photothermal activities in achieving 100% cell death for MDA-MB-231 breast cancer cells at a power of 10 W/cm 2 using an 808 nm laser source, demonstrating applications toward photothermal therapy.
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Research context

NanomaterialsCatalysis & surfaces

OpenAlex topics: Nanocluster Synthesis and Applications · Advanced Nanomaterials in Catalysis · Gold and Silver Nanoparticles Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, ‡Biomedical Engineering, §Border Biomedical Research Center, and ∥Environmental Science and Engineering, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, United States

Funding

Division of Intramural Research, National Institute of Allergy and Infectious Diseases · University of Texas System · University of Texas at El Paso · Philadelphia Foundation · National Institute on Minority Health and Health Disparities · National Institute of General Medical Sciences · Division of Materials Research · Medical Center of the Americas Foundation · Emily's Dash Foundation

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