Preparation of Quercetin-Loaded Lipid Nanoparticle-Embedded Hydrogels and Stability Studies
Abstract
Quercetin, a plant-derived flavonoid with potent antioxidant and anti-inflammatory properties, is limited for topical use by its poor aqueous solubility, low bioavailability, and chemical instability. This research developed and validated a formulation-driven strategy to stabilize quercetin by encapsulating it in lipid nanoparticles (QLNs) and embedding these in a Carbopol hydrogel, providing comprehensive physicochemical and functional stability data. A fully validated HPLC-PDA assay was used to quantify quercetin in the nanoparticle-hydrogel matrix. In vitro bioactivity testing showed notable antioxidant activity (DPPH IC50 6.84 ± 0.12 µg/mL; ABTS IC50 4.04 ± 0.08 µg/mL; FRAP 301.46 ± 3.68 µg/mL) and an anti-inflammatory effect in LPS-stimulated RAW264.7 macrophages (1 µM quercetin reduced NO from 50.72 ± 2.00 µM to 41.57 ± 3.12 µM, p 90% quercetin and preserving antioxidant and anti-inflammatory activities (<10% reduction). These results establish a robust, application-ready approach for maintaining quercetin's chemical integrity and bioactivity in topical formulations.
Read the paper
Related studies
- Quercetin Influences Quorum Sensing in Food Borne Bacteria: In-Vitro and In-Silico Evidence
- Phenolic-protein interactions: insight from in-silico analyses – a review
- In Silico Discovery of Candidate Drugs against Covid-19
- Neuropharmacological Effects of Quercetin: A Literature-Based Review
- In vitro and in silico anti-dengue activity of compounds obtained from Psidium guajava through bioprospecting
- Effect of Quercetin Rich Onion Extracts on Bacterial Quorum Sensing
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.