The polyphenols as nutraceutical and therapeutic agents are gaining growing interest for their beneficial effects and potential in human health. In order to protect their scaffolds and functionality, and to improve the bioavailability, the microencapsulation can represent a promising strategy. This study reports on the formulation of the natural resveratrol (RSV) into microcapsules (MCs) prepared by using different concentrations of chitosan (CS) and poly(D,L-lactic-co-glycolic acid) (PLGA) as polymeric matrix. MCs were prepared by W/O/W double emulsion method and characterized in terms of morphology, size, encapsulation efficiency, physicochemical and thermal properties. RSV release behavior from MCs was evaluated under simulated gastrointestinal fluids, and the long term stability was monitored at different storage conditions. MCs resulted to have spherical shape and different morphology, with size ranging from 11 to 20 μm, and encapsulation efficiencies of 40-52%, depending on the CS concentration. Moreover, MCs containing CS exhibited a significant lower release of RSV than those containing only PLGA. Furthermore, all tested formulations were able to ensure a good retention and stability of encapsulated RSV until 6 months. In summary, CS/PLGA MCs can be proposed as an attractive delivery system to control the release and long term protection of RSV.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2014.08.053 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Harvi Cardiovascular Modeling Accurately Predicts Hemodynamic Improvements Produced by a New Direct Cardiac Compression Device.
ASAIO J
November 2024
From the Department of Biomedical Engineering, Texas A&M University, College Station, Texas.
Despite advancements in mechanical circulatory support (MCS) technology, persistent critical complications related to blood contact remain unresolved. To provide a safer alternative therapy, CorInnova is developing a non-blood contacting direct cardiac compression (DCC) device for MCS. To support product development toward clinical trials, a simulation platform has been developed to predict clinical outcomes under patient-specific conditions, guiding patient selection for clinical trials.
View Article and Find Full Text PDFDual-frequency ultrasonic oxidation of cyanobacterial toxins (MC-LR and MC-RR) at drinking water resources: Assessment of analytical methods and ultrasonic reactor configuration.
Ultrason Sonochem
December 2024
Ataturk University, Engineering Faculty, Environmental Engineering Department, Erzurum 25240, TÜRKİYE. Electronic address:
Ultrasonic oxidation provides the degradation of a wide range of water pollutants to the final products defined as carbon dioxide, short-chain organic acids, and inorganic ions, typically less toxic and favorable to biodegradation. In this study, it was investigated the application of novel ultrasonic reactor that allows the several combinations of low (20 kHz and 40 kHz) and high frequency ultrasonic piezoceramic transducer (578 kHz, 862 kHz and 1142 kHz) to degrade two main cyanobacterial toxins, Microcystin-RR (MC-RR) and Microcystin-LR (MC-LR). A plate transducer operating at different frequencies (40 kHz or 578 kHz/862 kHz/1142 kHz) was combined with a probe (20 kHz) as well as two plate transducers 40 kHz and 578 kHz/862 kHz/1142 kHz were combined to provide dual frequency ultrasonic reactor (DFUR).
View Article and Find Full Text PDFGold nanoparticles supported onto zwitterionic polymer capillary monoliths meant for efficient enrichment of microcystins in water.
Talanta
December 2024
Key Laboratory for Analytical Science of Food Safety and Biology, College of Chemistry, Fuzhou University, Fuzhou, 350116, China; International (HongKong Macao and Taiwan) Joint Laboratory on food safety and environmental analysis, Fuzhou, 350116, Fuzhou University, China; Engineering Technology Research Center on Reagent and Instrument for Rapid Detection of Product Quality and Food Safety, Fuzhou, 350116, China. Electronic address:
The release of microcystin (MCs) in aquatic ecosystems poses a substantial risk to the safety of irrigation and drinking water. In view of the challenges associated with monitoring MCs in water bodies, given their low concentration levels (μg/L to ng/L) and the presence of diverse matrix interferences, there is an urgent need to develop an efficient, cost-effective and selective enrichment technique for MCs prior to its quantification. In this work, a gold nanoparticles (AuNPs)-functionalized zwitterionic polymer monolith was described and further applied for the affinity enrichment of MCs.
View Article and Find Full Text PDFArticle Synopsis
- Patients awaiting heart transplants often require colonoscopies due to bleeding or screening needs, but there's limited research on the safety of these procedures for individuals on inotropic medications or mechanical circulatory support.
- A study was conducted from 2015 to 2021 with 92 heart failure patients undergoing colonoscopy while on advanced heart failure therapies, such as inotropes or mechanical devices.
- Results indicated that the most common reason for colonoscopy was cancer screening, with significant findings including 8% of screening procedures revealing advanced adenomas and 17% of bleeding-related colonoscopies identifying sources needing intervention, but no major complications related to anesthesia were reported.
Automated Actuation of Biodegradable and Self-Fluorescent Chlorella Swarms Using Magnetic Tweezers.
Small
December 2024
Department of Electronic Engineering, Ocean University of China, Qingdao, 266100, China.
Magnetic microrobot swarms have broad application prospects in human-targeted therapy. However, the automated assembly and actuation of functional large-volume swarms is a challenging topic. Chlorella with self-fluorescence and biodegradability is used in this paper as a template to prepare magnetic Chlorella-based microrobots through magnetron sputtering.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!