Journal
NANOMEDICINE
Volume 15, Issue 9, Pages 851-869Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/nnm-2019-0369
Keywords
analgesic activity; opioid system; Zingiberis rhizoma-carbon dots; 5-hydroxytryptamine
Funding
- National Natural Science Foundation [81573573]
- Classical Prescription Basic Research Team of the Beijing University of Chinese Medicine [2019-JYB-TD-001]
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Aim: To evaluate the analgesic activity of Zingiberis rhizoma-based carbon dots (ZR-CDs). Materials & methods: Novel ZR-CDs were prepared via a facile, green pyrolysis method. Microstructure, optical and functional group properties were characterized. Acetic acid writhing, hot-plate and tail-immersion tests were performed using mice to evaluate the analgesic activity of ZR-CDs, followed by a preliminary study on the analgesic mechanism. Results: ZR-CDs with a quantum yield of 5.2% had a diameter ranging from 2.23 to 3.77 nm. Remarkable analgesic effect of ZR-CDs was observed against both thermal and chemical stimulus tests, possibly mediated by an opioid-like mechanism and the regulation of 5-hydroxytryptamine levels. Conclusion: ZR-CDs have a promising potential for biomedical application in relieving pain-related diseases.
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