Microengineered poly(HEMA) hydrogels for wearable contact …
2020年10月13日 · Here, we report the fabrication of microchannels in poly(2-hydroxyethyl methacrylate) (poly(HEMA)) hydrogels that are used in commercial contact lenses with a three-dimensional (3D) printed mold. We investigated the corresponding capillary flow behaviors in these microchannels.
Polyhydroxyethylmethacrylate - Wikipedia
Poly(2-hydroxyethyl methacrylate) (pHEMA) is a polymer that forms a hydrogel in water. Poly (hydroxyethyl methacrylate) (PHEMA) hydrogel for intraocular lens (IOL) materials was synthesized by solution polymerization using 2- hydroxyethyl methacrylate ( HEMA ) as raw material, ammonium persulfate and sodium pyrosulfite (APS/SMBS) as catalyst ...
Molecular engineering of poly(HEMA-co-PEGMA)-based …
2019年5月1日 · Once modified to have the appropriate biomimetic properties, poly (HEMA)-based hydrogels have the potential to function as the biocompatible interface between a biotransducers (ABIO) and the local site of implantation (BIO) within the human body [12].
The effect of heterobifunctional crosslinkers on HEMA hydrogel …
Vinyl methacrylate incorporation into HEMA hydrogels gave rise to hydrogels with Young’s moduli spanning ranges for ligament to cartilage, with a peak toughness of 519 ± 70 kJ/m 3 under physiological conditions. We report toughness (work of extension) as a function of modulus and equilibrium water content for all formulations.
Cross-linker engineered poly (hydroxyethyl methacrylate) hydrogel ...
2024年9月1日 · To obtain a multifunctional hydrogel, 2-hydroxyethyl methacrylate (HEMA) and Sq dye were used. Sq dye was employed as a chemical cross-linker for PHEMA hydrogels. We surmised that the incorporation of Sq dye in the PHEMA hydrogel network would provide multifunctional hydrogels that could be used as phototherapy agents.
Poly(HEMA-co-MMA) Hydrogel Scaffold for Tissue Engineering …
2024年10月27日 · In this research, poly(HEMA-co-MMA) hydrogel scaffolds were manufactured using MMA with hydrophobic properties to overcome the limitations of the PHEMA hydrogel scaffold. Here, PETA was employed as a crosslinking agent for the copolymerization of PHEMA and MMA to create a denser crosslinked network, thereby achieving mechanical properties and ...
High-throughput screening of zwitterion-based coatings towards …
2023年6月26日 · 2-hydroxyethyl methacrylate (HEMA), poly (ethylene glycol) (PEG), and zwitterionic polymers are currently considered the most extensively studied antifouling hydrogel coatings. However,...
2-Hydroxyethyl methacrylate based polymer microgels and their …
2024年7月1日 · HEMA based microgels are used for biomedical, catalytic and adsorption applications. 2-Hydroxyethyl methacrylate (HEMA) based microgels have gained much attention in recent decades due to their potential applications in various fields.
Temperature-regulated flexibility of polymer chains in rapidly …
2019年5月17日 · In this work, we report that the properties of 2-hydroxyethyl methacrylate and acrylamide (HEMA/AAm) hydrogels can be easily altered from non-self-healing to rapidly self-healing by simply tuning...
Biodegradable HEMA-based hydrogels with enhanced mechanical …
The development of biodegradable hydrogels presenting load-bearing capabilities would open new possibilities to utilize this class of material in the biomedical field. In this work, an original formulation of biodegradable photo-crosslinked hydrogels based on hydroxyethyl methacrylate (HEMA) is presented.