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Mucoadhesive Composites Based on Polyurethane/AgNPs for Urinary Catheter Application
Bianca-Iulia Ciubotaru;Mirela-Fernanda Zaltariov;Liliana Verestiuc;Daniela Filip;Doina Macocinschi
2019 E-Health and Bioengineering Conference (EHB)
Year: 2019 | Conference Paper |
Two different polyurethane composites containing proteins from extracellular matrix (elastin and collagen) and glycosaminoglycanes (condroitin sulphate (CS) and hialuronic acid (HA)) with embedded AgNPs 0.5% and 1.5% have been prepared. The composites have been evaluated for their antimicrobial properties against three bacteria associated with urinary tract infections: Lysteria, Escherichia Coli a...Show More
Surface roughness, albumin adsorption and thrombogenicity of cellulose-blended polyurethane membranes
Maria Butnaru;Doina Macocinschi;Iulia Stoica;Cristina Daniela Dimitriu;Luca Andreea;Stelian Vlad;Daniela Filip;Valeria Harabagiu
2011 E-Health and Bioengineering Conference (EHB)
Year: 2011 | Conference Paper |
Polyurethanes (PUs) are synthetic polymers with easily adaptable mechanical properties to many medical applications, including those in which contact with blood is required. Not all PUs are haemocompatible even if they are not cytotoxic. In this study PUs obtained from poly(ethylene adipate)diol (PEGA), polytetrahydrofuran (PTHF) or poly(propylene)glycol (PPG) as soft segments and 4',4'-diphenylme...Show More
Biological performance of polyurethane membranes for implantable devices
Maria Butnaru;Ovidiu Bredetean;Laura Knieling;Doina Macocinschi;Stelian Vlad;Daniela Filip;Xenia Patras;Valeria Harabagiu
2011 E-Health and Bioengineering Conference (EHB)
Year: 2011 | Conference Paper |
Block-segmented molecular structure of polyurethanes (PUs) and their capacity to react or to blend with other molecules are advantageous characteristic that permits them to reach a wide range of properties. In this paper some new PUs with different soft segments, blended with HPC are investigated for their longtime preservation in aqueous media, in vivo biocompatibility and adaptability to the hos...Show More
Polyurethane nanofibers by electrospinning for biomedical applications
S. Vlad;C. Ciobanu;D. Macocinschi;D. Filip;M. Butnaru;L. M. Gradinaru;A. Nistor
CAS 2010 Proceedings (International Semiconductor Conference)
Year: 2010 | Conference Paper |
Cited by: Papers (1)
In this study the electrospinning technique was used to prepare biocompatible polyurethane membranes. The polyurethane for preparation of nanofibers was synthesized from hexamethylenediisocyanate (HDI), polytetramethylene ether glycol (PTMEG) and butanediol (BD) filled with different proportion of hydroxypropyl cellulose (HPC), by polyaddition in dimethylformamide (DMF) as solvent. Molar ratio of ...Show More
Contributions to the synthesis of thin organic films via low-pressure non-equilibrium plasma deposition
Marian I. Totolin;Iordana Neamtu;Daniela Filip;Iuliana Stoica;Doina Macocinschi
2008 IEEE 35th International Conference on Plasma Science
Year: 2008 | Conference Paper |
Summary form only given. Plasma polymerization offers an ecological, potentially tunable route to selectively and controllably change the physics and chemistry of the outer surface of a material. It presents an exciting chance to produce pinhole free, conformal thin films, containing high concentrations of specific functional groups at the surface, deposited on most supports, by complex reactions ...Show More
Surface characteristics of pluronic-based polyurethanes
2008 IEEE 35th International Conference on Plasma Science
Year: 2008 | Conference Paper |
Amphiphile polymers find widespread applications because of their unique ability to self-assemble and modify interfacial properties. Smart polymers have very promising applications in the biomedical field as delivery systems of therapeutic agents, tissue engineering scaffolds, cell culture supports, bioseparation devices, sensor or actuators systems. Polyurethanes and polyurethane-ureas based on p...Show More
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