Related Experiment Video
Updated: Sep 11, 2025

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin
Published on: December 22, 2023
Ultrasound-enhanced bioaccessibility and pharmacological activities of curcumin in inclusion complexes
Matheus X Oliveira1, Irisvan S Ribeiro2, Francisca Vanessa C Canafístula2
1Department of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, UFC, Fortaleza, CE, Brazil; Department of Chemistry, Polymer Transport Phenomena Laboratory, University of Coimbra, U.C, Coimbra, Portugal.
Abstract:
Curcumin was successfully complexed with 2'-hydroxypropyl-β-cyclodextrin (HP-β-CD) using an innovative combination of solvent evaporation and ultrasound techniques. Complexes subjected to sonication for 5-15 min were compared to a control prepared without ultrasound. Sonication significantly improved yield, encapsulation efficiency, loading capacity, and reduced particle size compared to the non-sonicated control. The 10-min sonication (HP-CD/Cur10) achieved the highest encapsulation efficiency, curcumin loading, the smallest particle size, and curcumin autoxidation. Notably, sonication enhanced water solubility by over 360-fold compared to free curcumin. Furthermore, HP-CD/Cur10 demonstrated superior antioxidant activity, cytocompatibility, antibacterial efficacy against methicillin-resistant Staphylococcus aureus (MRSA), and improved curcumin bioaccessibility. A remarkable accomplishment of this study is achieving high encapsulation efficiencies using a 1:1 (mol/mol) ratio of HP-β-CD to curcumin, contrasting with the larger cyclodextrin quantities typically required for effective encapsulation. Overall, HP-CD/Cur10 addresses the challenges of oral curcumin administration and demonstrates excellent potential as a delivery system for foods and pharmaceutical formulations.
More Related Videos
05:08Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid
Published on: September 20, 2017
08:39Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release
Published on: July 4, 2017
Related Concept Videos
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
Factors Influencing Drug Absorption: Physicochemical Parameters
Enhanced drug absorption can be achieved by reducing particle sizes and increasing surface areas, thereby facilitating...
Factors Influencing Bioavailability: First-Pass Elimination
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
Methods for Studying Drug Absorption: In vitro
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...