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.
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http://dx.doi.org/10.1007/s10334-023-01117-8 | DOI Listing |
Sci Rep
November 2024
Personalized Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
A simple, one-pot and green method is reported for hydrothermal synthesis of highly fluorescent and magnetic carbon dots (CDs) by using D-glucose, as the carbon source. CDs were fully characterized by the UV-Vis and fluorescence spectroscopy, DLS, FTIR, TEM, EDS, XRD, and VSM. The nitrogen doping of different diamines significantly improved the fluorescence quantum yield (QY) of CDs with the maximum effect obtained by using m-phenylenediamine (mPDA).
View Article and Find Full Text PDFMAGMA
February 2024
Department of Chemistry, Islamic Azad University, Rasht Branch, Rasht, Iran.
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.
View Article and Find Full Text PDFMethods Appl Fluoresc
March 2023
Division of Biophotonics and Imaging, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences &Technology, Poojappura, Thiruvananthapuram-695012, Kerala, India.
Hybrid nanoparticles are innovative invention of last decade designed to overcome limitations of single-component nanoparticles by introducing multiple functionalities through combining two or more different nanoparticles. In this study, we are reporting development of magneto-fluorescent hybrid nanoparticles by combining iron oxide and carbon nanoparticles to enablefluorescence imaging which also has all the required characteristic properties to use as Magnetic Resonance Imaging (MRI) contrast agent. In order to achieve dual-functional imaging, alginate and pullulan coated super paramagnetic iron oxide nanoparticles (ASPION and PSPION) and Carbon dots (Cdts) were synthesised separately.
View Article and Find Full Text PDFMol Imaging
October 2021
School of Basic Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, India.
Although, superparamagnetic iron oxide nanoparticles (SPIONs) have extensively been used as a contrasting agent for magnetic resonance imaging (MRI), the lack of intrinsic fluorescence restricted their application as a multimodal probe, especially in combination with light microscopy. In Addition, the bigger size of the particle renders them incompetent for bioimaging of small organelles. Herein, we report, not only the synthesis of ultrasmall carbon containing magneto-fluorescent SPIONs with size ∼5 nm, but also demonstrate its capability as a multicolor imaging probe.
View Article and Find Full Text PDFMaterials (Basel)
September 2020
Center of Information Optical Technology, ITMO University, 49 Kronverksky Prospekt, 197101 St. Petersburg, Russia.
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