Polyhydroxyethylmethacrylate polymers (poly-HEMA) form hydrogels that provide an excellent alternative to agar in the production of salt bridges for use in bioelectrochemical experiments. A method for the simple production of poly-HEMA salt bridges is described. The poly-HEMA bridges were compared with agar bridges of similar geometry. Whereas poly-HEMA salt bridges have a conductivity that is ...

In this study, firstly, (2-oxo-2-(3,4,5-trifluoroanilino)-ethyl-2-methylprop-2-enoate) FAOEME, a methacrylate monomer with arylamide side group containing three fluorine atoms in the branch, was synthesized. Poly(HEMA-co-FAOEME) obtained due to radical copolymerization of FAOEME 2-hydroxyethyl (HEMA). Structural characterization its copolymer and HEMA performed by spectroscopy methods such as F...

Poly(HEMA) cryogel disks were synthesized by free radical polymerization of 2-hydroxyethylmethacrylate (HEMA), and then Cibacron Blue F3GA (CB), Reactive Green 19 (RG) and Congo Red (CR) were immobilized as dye ligands. Disks were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and swelling degree, porosity calculations. Cd2+ adsorption experi...

The wheat gluten protein alpha-gliadin, a well known trigger of celiac disease, can be complexed by random copolymers of hydroxyethyl methacrylate (HEMA) and sodium 4-styrene sulfonate (SS). In this work, influence of alpha-gliadin and poly(HEMA-co-SS) concentrations on alpha-gliadin structure was studied using spectroscopic techniques and dynamic light scattering. In 70% ethanol or 0.06M HCl (...

A new graft copolymer, poly(2-hydroxyethyl methacrylate-co-styrene) -graft-poly( -caprolactone), was prepared by combination of reversible addition-fragmentation chain transfer polymerization (RAFT) with coordination-insertion ringopening polymerization (ROP). The copolymerization of styrene (St) and 2-hydroxyethyl methacrylate (HEMA) was carried out at 60 °C in the presence of 2-phenylprop-2-y...

Flow cytometry was evaluated for the first time microbiological characterisation of samples collected from surfaces stone and mortar sculptures. The study carried out on outdoor sculptures located in district Porto (Portugal), which were using swabs poly(2-hydroxyethylmethacrylate) (poly(HEMA)) cryogels as non-invasive sampling methods. use poly(HEMA) tested an alternative to swabbing due diffi...

Copolymers of sodium 4-styrene sulfonate (SS) and hydroxyethyl methacrylate (HEMA) were investigated as sequestrants of alpha-gliadin, a gluten protein, for the treatment of gluten intolerance. The interactions of alpha-gliadin with poly(SS) and poly(HEMA-co-SS) with 9 and 26 mol% SS content were studied at gastric (1.2) and intestinal (6.8) pH using circular dichroism and measurements of turbi...

A crosslinked polymer hybrid film, ipn-poly(vinyl cinnamate-graft-2-hydroxy ethyl methacrylate)-v-poly(ethylene glycol dimethacrylate) was synthesized by UV initiation using poly(vinyl cinnamate) (polyVCi), 2-hydroxy methacrylate (HEMA) monomer and ethylene dimethacrylate (EGDMA) crosslinker. Benzophenone (Ph2CO), used as the photoinitiator. The synthesis optimized changing concentration of HEM...

In this study, the adsorption of tetracycline (TC) onto polymeric microbeads was investigated. For purpose, suspension polymerization used to synthesize poly(2-hydroxyethyl methacrylate) [poly(HEMA)] microbeads. Cibacron Blue F3GA (CB) covalently attached poly(HEMA) and were tested as an adsorbent for subsequent TC adsorption. The effects various parameters, such pH value, initial concentration...

Poly(2-hydroxyethyl methacrylate) p(HEMA) is a biocompatible polymer that forms a hydrogel when mixed with water. Water content and oxygen permeability, mechanical properties of p(HEMA) hydrogel can be controlled by cross-linking rate or by copolymerization; that is why p(HEMA) hydrogels have multiple biomedical applications. This paper objective was to analyse a biomaterial made of p(HEMA) for...