Elena Eva Julianne Marxer

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Upon contact with the human body, nanomaterials are known to interact with the physiological surroundings, especially with proteins. In this context, we explored analytical methods to provide biologically relevant information, in particular for manufactured nanomaterials as produced by the chemical industry. For this purpose, we selected two batches of(More)
Ultrasound contrast agents are widely used in clinical diagnosis. In recent years, the use of ultrasound contrast agents as therapeutic agents has gained a lot of attention. Of special interest are ultrasound-enhanced gene delivery in various tissues (e.g. cardiac, vascular, skeletal muscle and tumor tissue), ultrasound-enhanced protein delivery (e.g.(More)
In the present study, we investigated the sonothrombolytic effect of new nanoscaled lipid formulations in human blood clots, using diagnostic ultrasound. Human blood clots of 1 ml were incubated with 1 μl of the different lipid dispersions DPPC/CH, DPPC/PEG40S, DSPC/PEG40S and the commercially available ultrasound contrast agent SonoVue®. Clots were stored(More)
Ultrasound is a common tool for clinical diagnosis due to its safety and economic. Especially the addition of ultrasound contrast agents leads to a high diagnostic reliability. In recent years ultrasound has been used as a trigger for directed drug delivery or to enhance thrombolysis. We developed a nanoscaled ultrasound contrast agent (NUSCA) to improve(More)
Designed for gene therapy of chronic diseases, HBP-DEAPA 60 is a non-toxic biodegradable amine modified hyperbranched polyester. This candidate was chosen from a series of hyperbranched polymers for further characterization as it showed the best transfection efficiency and fastest degradation rate. HBP-DEAPA 60/DNA complexes were investigated with regard to(More)
Ultrasound active liposomes currently have gained a lot of interest as therapeutic agents for targeted drug delivery. A well known problem is their fast clearance from the circulation and thus the short time frame for drug release. The use of ultrasound as external trigger for drug release is attractive because it can be easily focused and only few adverse(More)
Probiotic microorganisms have been shown to provide specific health benefits when consumed as food supplements or as food components. The main problem of such products is the poor survival of the probiotic bacteria in the low pH of gastric fluid. However the use of synthetic excipients for enteric coating to prevent the exposure of microorganisms to gastric(More)
Complexes of β-cylodextrin with five nucleotides of adenine (A), thymine (T) guanine (G), cytosine (C), and 5-methylcytosine have been investigated using Hatree-Fock (HF) and density functional theory (DFT) calculations of different quality. This work was inspired by recent technological advances made in singlemolecule sequencing of DNA. One molecule of(More)
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