Synthesis and Evaluation of New Magneto-Fluorescent Carbon Dot Based on Manganese Citrate for Mri Imaging Publisher Pubmed



Ali V¹ ; Kefayati H¹ ; Shafiee Ardestani M² ; Pourahmad A¹ Show Affiliations
Source: Magnetic Resonance Materials in Physics# Biology and Medicine Published:2024

Abstract

Objective: Medical imaging techniques have widely revolutionized the diagnosis and treatment of various health conditions. Among these techniques, magnetic resonance imaging (MRI) has stood out as a noninvasive and versatile tool. Now, a breakthrough innovation called “manganese-carbon dots” is poised to enhance MRI imaging and provide physicians with even greater insight into the human body. Materials and methods: In this study, one-pot hydrothermal method was used to fabricate magneto-fluorescent carbon quantum dots using manganese citrate, urea, and Mn2+. Manganese citrateAQ3 acted as a carbon source and contrast agent. TEM,XPS, FTIR, UV–Vis, fluorescent analysis confirmed the successful synthesis of magneto-fluorescent carbon quantum dots. The MTT assay was used to study its biocompatiblity, Finallay application of itscompound for mri imaging was investigated. Results: Characterization Techniques confirmed the succesful synthesis of product. MTT assay showed no toxicity of this product on HEK-293 cells. In addition, it exhibited high r1 relaxivity (7.4 mM–1 S−1) suggesting excellent potential of magneto-fluorescent carbon quantum dots as MRI T1 contrast agent and enabling specific imaging. Conclusion: Based on the results obtained, the synthesized carbon quantum dots could be used as fluorescence/MRI bimodal platform for in vivo imaging. © The Author(s), under exclusive licence to European Society for Magnetic Resonance in Medicine and Biology (ESMRMB) 2023.