Hyaluronic acid (HA) and galactomannans (such as guar gum - GG and locust bean gum - LBG) are biomacromolecules with various applications due to their physicochemical characteristics in solution, especially their ability to form films or hydrogels in some conditions. Some of these applications are possible because they are nontoxic and biocompatible. Mixtures of HA and GG or LBG, at pH 7.4, were prepared at 25 g·L of HA:LBG or HA:GG with percentages of 50:50, 60:40, 70:30 and 80:20 (w/w) and evaluated by rheology and NMR experiments regarding the interactions. The best synergism observed was between HA:LBG, most pronounced at 50% (w/w), where the dynamic modulus values G' and G″ indicated the formation of physical gels with viscoelastic behavior close to that of HA. 2D NOESY spectra revealed hydrogen interconnectivity of H-1 glucuronic acid units of HA with H-5 mannose units of the main galactomannan chains. This synergism, besides producing a hydrogel with interesting properties, also can decrease the cost by partially replacing HA in many applications, such as in nutraceutical foods, support for tissue engineering and cosmetics.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2019.12.114 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
enhancement of CD8+ T cell activity using functionalized hydrogel encapsulating tonsil-derived lymphatic endothelial cells.
Theranostics
January 2025
Nano-Bio Regenerative Medical Institute, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea.
This study investigates a method for programming immune cells using a biomaterial-based system, providing an alternative to traditional cell manipulation techniques. It addresses the limitations of engineered adoptive T cell therapies, such as T cell exhaustion, by introducing a gelatin-hyaluronic acid (GH-GMA) hydrogel system. We characterized tonsil mesenchymal stem cells (TMSCs), lymphatic endothelial cells (T-LECs), stimulated T-CD8 T cells (STCs), and GH-GMA biomaterials.
View Article and Find Full Text PDFNeither Bone Marrow Aspirate Concentrate nor Platelet-Rich Plasma Improves Patient-Reported Outcomes After Surgical Management of Acetabular Labral Tears; However, Bone Marrow Aspirate Concentrate May Be Effective for Moderate Cartilage Damage: A Systematic Review.
Arthrosc Sports Med Rehabil
December 2024
Sports Medicine Service, Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.
Purpose: To (1) systematically assess which orthobiologic agents are being used in acetabular labral repairs and (2) report all available outcomes for patients undergoing operative management for labral repairs with orthobiologic agents.
Methods: The PubMed, Embase, and Cochrane databases were queried in August 2023. Articles were included if they used an orthobiologic agent during hip arthroscopy for acetabular labral repair and reported functional outcomes.
Micro-vibration assisted dual-layer spiral microneedles to rapidly extract dermal interstitial fluid for minimally invasive detection of glucose.
Microsyst Nanoeng
January 2025
School of Engineering, University of Southern Queensland, Springfield, QLD, 4300, Australia.
Various hydrogels have been explored to create minimally invasive microneedles (MNs) to extract interstitial fluid (ISF). However, current methods are time-consuming and typically require 10-15 min to extract 3-5 mg of ISF. This study introduces two spiral-shaped swellable MN arrays: one made of gelatin methacryloyl (GelMA) and polyvinyl alcohol (PVA), and the other incorporating a combination of PVA, polyvinylpyrrolidone (PVP), and hyaluronic acid (HA) for fast ISF extraction.
View Article and Find Full Text PDFA Cerium Oxide Loaded Hyaluronic Acid Nanosystem Remits Glucose Oxidative Stress-Induced Odontoblasts Mitochondrial Apoptosis through Regulation of PGAM5 Pathway.
ACS Appl Mater Interfaces
January 2025
School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325027, China.
Diabetes mellitus (DM) induced mitochondrial oxidative stress (OS) can lead to severe injury of dental pulp. The cerium oxide nanoparticles (CNP) have been proven to have excellent antioxidative activity. However, whether CNP can relieve dental pulp damage caused by DM and the underlying mechanisms remain unclear.
View Article and Find Full Text PDFHow to Fabricate Hyaluronic Acid for Ocular Drug Delivery.
Pharmaceutics
December 2024
Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81, Irwon-ro, Gangnam-gu, Seoul 06351, Republic of Korea.
This review aims to examine existing research on the development of ocular drug delivery devices utilizing hyaluronic acid (HA). Renowned for its exceptional biocompatibility, viscoelastic properties, and ability to enhance drug bioavailability, HA is a naturally occurring biopolymer. The review discussed specific mechanisms by which HA enhances drug delivery, including prolonging drug residence time on ocular surfaces, facilitating controlled drug release, and improving drug penetration through ocular tissues.
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!