AIM Caffeic acid has been described as active against bacteria commonly isolated from wound infections. However, its low stability and poor solubility reduce caffeic acid applicability as a pharmaceutical product. These parameters can be enhanced by complexation with cyclodextrin. The main goal of the present work was to incorporate caffeic acid on cyclodextrin-based hydrogels capable of contro...

In this study, a novel phosphorus-containing flame retardant copolymer of spirocyclic pentaerythritol di(phosphate monochloride) and bisphenol S (SPD-BS) was successfully synthesized and used as a flame retardant in diglycidyl ether of bisphenol A (DGEBA) epoxy resins. The chemical structure of the SPD-BS was characterized using FT-IR and H NMR spectra. The thermal properties were investigated ...

Among the several available techniques to produce the braided composite rods for construction industry, nidltrusion process is becoming the most widespread and cost-effective continuous processing technique. The work mentions the influence of carboxyl functionalized multiwalled carbon nanotubes (MWCNTs) on the maximum speed of manufacturing process. The epoxy polymer is diglycidyl ether of bisp...

Two polymers were prepared from diglycidyl ether of bisphenol A (DGEBA) and triglycidyl p-aminophenol (TGAP) epoxy resins, using the same hardener diethylenetriamine (DETA). The obtained compared in terms structural, optical, mechanical, thermal dielectric properties. Dielectric spectroscopy dynamic mechanical analysis indicated presence dipolar relaxations both polymers, interfacial one only f...

In an electronics plant, 2 one-component epoxy coatings containing a modified polyamine hardener were used as covering materials for protecting important information on police radio circuit boards. The resinous parts of the coatings consisted of epoxy resins based on diglycidyl ether of bisphenol F. The hardener was a dimethylaminopropylamine (DMAPA)-epoxy adduct and contained about 0.16% free ...

Silk fibroin (SF) has been widely investigated in biomedical applications due to its biodegradability and biocompatibility. The objective of this work was to prepare SF spheres for drug delivery application. Drug-loaded SF spheres with and without polyethylene glycol diglycidyl ether (PEGDE) crosslinking were prepared by a water-in-oil emulsion solvent diffusion method. Blue dextran was used as...

We present a method and several applications for the synthesis of hydrogel-crosslinked microneedle arrays utilizing microwave-assisted drying, ensuring significant reduction in reaction preparation time while maintaining quality. demonstrate feasibility drying hydrogels using microwaves thus extend to crosslinked fabrication. Crosslinking was performed 1,4-butanediol diglycidyl ether (BDDE) as ...

Materials Unless otherwise stated, FAD-dependent glucose dehydrogenase (E.C.: 1.1.99.10, Aspergillus sp., GLDE-70-1192) was purchased from Sekisui Diagnostics (UK) and used without any further purification. For comparison experiments, GDH was also purchased from Amano Enzyme Inc., Japan (“Amano 8”, Aspergillus oryzae) and BBI Solutions USA (GLD1, Aspergillus oryzae). Bilirubin oxidase (Myrothec...