| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Teske, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2022Characterization of Ball-milled Poly(Nisopropylacrylamide) Nanogels
- 2022The influence of PEGDA’s molecular weight on its mechanical properties in the context of biomedical applicationscitations
- 2021A hydrogel based quasi-stationary test system for in vitro dexamethasone release studies for middle ear drug delivery systems
- 2020Smart releasing electrospun nanofibers-poly: L.lactide fibers as dual drug delivery system for biomedical application.citations
- 2020PEGDA drug delivery scaffolds manufactured with a novel hybrid AM process
- 20193D-printed PEGDA structure with multiple depots for advanced drug delivery systems
- 2019A Novel Hybrid Additive Manufacturing Process for Drug Delivery Systems with Locally Incorporated Drug Depots. citations
- 2019Thermomechanical properties of PEGDA in combination with different photo-curable comonomerscitations
- 2019Controlled biodegradation of metallic biomaterials by plasma polymer coatings using hexamethyldisiloxane and allylamine monomerscitations
- 2018Thermomechanical properties of PEGDA and its co-polymerscitations
- 2018Novel approach for a PTX/VEGF dual drug delivery system in cardiovascular applications-an innovative bulk and surface drug immobilization.citations
- 2017Osteointegration of Porous Poly-ε-Caprolactone-Coated and Previtalised Magnesium Implants in Critically Sized Calvarial Bone Defects in the Mouse Model. citations
- 2017In Vitro Evaluation of PCL and P(3HB) as Coating Materials for Selective Laser Melted Porous Titanium Implants. citations
- 2017Influence of bulk incorporation of FDAc and PTX on polymer propertiescitations
- 2015Comparison of Selective Laser Melted Titanium and Magnesium Implants Coated with PCL
- 2015Surface Modification of Biodegradable Polymers towards Better Biocompatibility and Lower Thrombogenicity.citations
- 2015Comparison of Selective Laser Melted Titanium and Magnesium Implants Coated with PCL.citations
- 2015SLM produced porous titanium implant improvements for enhanced vascularization and osteoblast seeding.citations
Places of action
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article
A hydrogel based quasi-stationary test system for in vitro dexamethasone release studies for middle ear drug delivery systems
Abstract
<jats:title>Abstract</jats:title><jats:p>For the investigation of in vitro drug release, methods have been used in which samples of drug delivery systems are immersed in release medium. The medium is used to measure drug concentration via chromatography or photometry. These systems are suitable to investigate the drug release of different systems or to simulate tissue environments. When considering predominantly humid regions, e.g. for drug release into the cochlea through the round window membrane by a drug delivery system placed at that membrane, reproducible in vitro determination of drug release becomes particularly challenging. In this study the development of a system is reported that allows the investigation of the in vitro drug release simulating such conditions.</jats:p><jats:p>The presented test system consists of an alginate hydrogel in glass vials simulating the biological membrane, which separates the drug delivery system from the medium filled compartment. Saline is used as release medium and injected under the hydrogel. The samples are placed on top of the hydrogel, which slightly contacts the medium surface. The drug concentration in the release medium was determined by HPLC measurements.</jats:p><jats:p>This system allows for testing the release of dexamethasone without the samples being completely surrounded by medium. The hydrogel mediates the diffusion of the drug by ensuring the contact with the medium. Release was monitored for more than 23 days. The presented concept was successfully designed and manufactured. The system is inexpensive and can be duplicated easily. In this study, it was used to monitor the drug release of dexamethasone from PEGDA700 derived polymer. One challenge that remains to be considered is the low mechanical stability of the hydrogel, which results in a need for repeated manufacturing during the handling of the system.</jats:p>