Gold decorated bismuth sulfide nanorods for enhanced computed tomography imaging with in vitro and in vivo validation
Source abstract
Abstract
Abstract The development of hybrid metal nanoparticles (NPs) for use as computed tomography (CT) contrast agents is a promising area of research. Achieving optimal in vivo performance of imaging for NPs is challenging and depends on their geometry, materials properties, bioreactivity, and biocompatibility. In this study, we designed and developed a novel CT contrast agent composed of gold nanoparticles (AuNPs) coordinated on the surface of bismuth sulfide-core nanorods (Au@Bi 2 S 3 NRs) utilizing a solvothermal synthesis approach. We conducted solid-state characterization of Au@Bi 2 S 3 NRs, demonstrating their structural configuration, excellent stability, uniformity, and high crystallinity. We also tested their biocompatibility with mesenchymal stem cells and found that they were well tolerated at lower tested concentrations, with reduced viability observed at higher concentrations. To evaluate the imaging potential of Au@Bi 2 S 3 NRs, we tested them in small animals using CT imaging. Our results showed contrast enhancement in soft tissues, indicating the retention of the particles at these locations with no local inflammatory responses. Taken together, our study provides a proof-of-concept for the robust synthesis and use of Au@Bi 2 S 3 NRs as effective CT imaging contrast agents. Future work will explore the potential to functionalize Au@Bi 2 S 3 NRs with therapeutic molecules for theranostic applications.
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Research context
OpenAlex topics: Nanoplatforms for cancer theranostics · Gold and Silver Nanoparticles Synthesis and Applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
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