Green synthesis of R-phycoerythrin protected gold nanoclusters for sensitive detection of mercury(II) ions and their antibacterial properties
Source abstract
Abstract
Gold nanoclusters (AuNCs) occupy a distinct place in the class of transition metal nanoclusters owing to their ultrasmall size, photostability and non-toxicity in biomedical applications. In this work, R-phycoerythrin (RPE) was extracted fromSpyridia filamentosaand used as a stabilizing and reducing agent for the green synthesis of AuNCs. As-synthesized RPE-stabilized AuNCs exhibited pH-tuned stability and surface morphology. The average particle size of AuNCs is estimated to be 4.8 nm by HR-TEM analysis. The antibacterial activity of RPE-AuNCs against medically significant bacteria was determined using agar well diffusion method. The minimum inhibitory concentration (MIC) of RPE-AuNCs againstStaphylococcus aureusandEscherichia coliwere 2 mg/mL and 50 μg/mL, respectively. The as-synthesized RPE-AuNCs are applicable as a fluorescent probe for the detection of Hg2+ion with a detection limit of 5.2 nM. These results demonstrate the green synthesized R-phycoerythrin-protected AuNCs for their potential applications in biomedical and sensing fields.Graphic abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanocluster Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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