University of Debrecen – TechConnect Briefs

Nanoparticles Formed by Complexation of Poly-gamma-glutamic Acid with Lead Ions

Bodnar M., Kjoniksen A-L, Hartmann J.F., Daróczi L., Nystrom B., Borbely J., University of Debrecen, HU

Recently, reduction of water consumption by industry has been an important challenge. Enhanced ultrafiltration with polymers is a feasible method to remove metal ions from diluted wastewater streams. Biomacromolecules, biodegradable polymers as biomaterials have an [...]

preparation of Reactive Polymeric Nanoparticles (RPNPs)

Szaloki M., Hartmann J.F., Hegedus C., Borbely J., University of Debrecen, HU

Synthesis of polymeric nanoparticles attracts a great effort to obtain particles with desired size, surface and functionalities. Crosslinking polymerization methods have received considerable interest relation to the development of preparation of microgels, crosslinked nanoparticles, their [...]

Nanocomposites for Restorative Dentistry

Uveges A., Bukovinszki K., Szaloki M., Hegedus C., Borbely J., University of Debrecen, HU

Dental filling materials are crosslinked resins with high abrasion resistance. Inorganic micro and recently nanofillers are introduced to improve their properties. However, the shrinkage of the resin component during the polymerization reaction is still a [...]

Synthesis of Biocompatible Nanocomposite hydrogels as a Local Drug Delivery System

Bako J., Szepesi M., Borbely J., Borbely Z.M., Hegedus C., Borbely J., Borbely Z.M., University of Debrecen, HU

Hydrogels are three dimensional hydrophilic crosslinked polymer networks, which capable of swelling in water. They have soft and elastic nature, which suggests similarities to natural tissues. Hydrogels are important in dentistry. For example, PerioChip is [...]

Fluorescent Nanoparticles Based on Chitosan

Bodnar M., Minko T., Hartmann J.F., Borbely J., University of Debrecen, HU

Chitosan is a basic linear polysaccharide containing β-[1→4]-linked 2-acetamido-2-deoxy-D-glucopyranose and 2-amino-2-deoxy-D-glucopyranose units. Because of the presence of reactive amino groups, chitosan can be modified easily to create nano- and micro particulate systems, films or porous [...]

Synthesis of Nanoparticles by Crosslinking Copolymerization

Uveges A., Hartmann J.F., Borbely J., University of Debrecen, HU

Cross-linked polymers formed by free radical polymerization in homogeneous solution or in emulsion are used in many current and emerging applications, including dental materials, protective and decorative coatings, contact lenses, super absorbent materials and hydrogels [...]

Nanoparticles Prepared by Self-assembly of Chitosan and Poly-gamma-glutamic Acid

Bodnar M., Hajdu I., Filipcsei G., Hartmann J.F., Borbely J., University of Debrecen, HU

The technique of self-assembly of polyelectrolytes opens many new opportunities to achieve idea models as delivery system. The oppositely charged biopolymers can self-assemble by the attractive interaction between the functional groups. The electrostatic interactions between [...]

Nanoparticles Formed by Complexation of Poly-gamma-glutamic Acid with Lead Ions

Bodnar M., Kjoniksen A-L, Hartmann J.F., Daróczi L., Nystrom B., Borbely J., University of Debrecen, HU

Recently, reduction of water consumption by industry has been an important challenge. Enhanced ultrafiltration with polymers is a feasible method to remove metal ions from diluted wastewater streams. Biomacromolecules, biodegradable polymers as biomaterials have an [...]