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Abstract
Nanodiamonds (NDs) are emerging with great potential in biomedical applications like biomarking through fluorescence and magnetic resonance imaging (MRI), targeted drug delivery, and cancer therapy. The magnetic and optical properties of NDs could be tuned by selective doping. Therefore, we report multifunctional manganese-incorporated NDs (Mn-NDs) fabricated by Mn ion implantation. The fluorescent properties of Mn-NDs were tuned by inducing the defects by ion implantation and enhancing the residual nitrogen vacancy density achieved by a two-step annealing process. The cytotoxicity of Mn-NDs was investigated using NCTC clone 929 cells, and the results revealed no cytotoxicity effect. Mn-NDs have demonstrated dual mode contrast enhancement for both T1- and T2-weighted in vitro MR imaging. Furthermore, Mn-NDs have illustrated a significant increase in longitudinal relaxivity (fivefold) and transversal relaxivity (17-fold) compared to the as-received NDs. Mn-NDs are employed to investigate their ability for in vivo MR imaging by intraperitoneal (ip) injection of Mn-NDs into mice with liver tumors. After 2.5 h of ip injection, the enhancement of contrast in T1- and T2-weighted images has been observed via the accumulation of Mn-NDs in liver tumors of mice. Therefore, Mn-NDs have great potential for in vivo imaging by MR imaging in cancer therapy.
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Authors (12)
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Bo-Rong Lin
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Chien-Hsu Chen
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Chun-Hsiang Chang
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Tzung-Yuang Chen
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Tung-Yuan Hsiao
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Hung-Kai Yu
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Yu-Jen Chang
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Li-Chuan Liao
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Fang-Hsin Chen
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Huan Niu
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acsomega.2c08043
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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ACS Omega
no. 8,
pages 4398 - 4409,
ISSN: 2470-1343 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Kunuku S., Lin B., Chen C., Chang C., Chen T., Hsiao T., Yu H., Chang Y., Liao L., Chen F., Bogdanowicz R., Niu H.: Nanodiamonds Doped with Manganese for Applications in Magnetic Resonance Imaging// ACS Omega -Vol. 8,iss. 4 (2023), s.4398-4409
- DOI:
- Digital Object Identifier (open in new tab) 10.1021/acsomega.2c08043
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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