Micronized curcumin fabricated by supercritical CO to improve antibacterial activity against .

Artif Cells Nanomed Biotechnol

The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; State Key Laboratory of Respiratory Disease, Sino-French Hoffmann Institute, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, PR China.

Published: December 2020

Curcumin (CM) is a natural polyphenolic compound with multiple biomedical functions. However, clinical applications face more challenges due to its low dissolution rate and poor bioavailability. Micronization is an effective strategy to overcome these drawbacks. Herein, CM nanoparticles (CM NPs, ∼300 nm) were fabricated using solution enhanced dispersion by supercritical CO (SEDS). The solubility of CM NPs was remarkably enhanced. Aim to study the effects of micronization on the biological functions of CM, we investigated the antibacterial activity of original CM and CM NPs upon . , the minimal inhibitory concentrations (MIC) assay, solid-medium spot assay, growth kinetics assay and morphologic observation using atomic force microscopy (AFM) confirmed that the anti- activity of CM NPs was enhanced compared to original CM. Moreover, CM NPs also showed stronger inhibition for adhesion and biofilm formation of compared to original CM. Experiments on mice infected with showed that CM NPs have a better therapeutic effect than the original CM . In summary, CM NPs may be a novel and promising therapeutic candidate for bacterial infection.

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Source
http://dx.doi.org/10.1080/21691401.2020.1815755DOI Listing

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