Oliver Hollmann

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The adsorption of two different proteins at a planar poly(acrylic acid) (PAA) brush was studied as a function of the ionic strength of the protein solutions applying total internal reflection fluorescence (TIRF) spectroscopy. Planar PAA brushes were prepared with a grafting density of 0.11 nm(-2) and were characterized using X-ray reflectometry. Hen(More)
In this paper, we describe the configuration tool <i>Drive Solution Designer</i> (DSD). The DSD is used by sales engineers of the company <i>Lenze AG (www.lenze.com)</i> for the configuration of complex drive systems in order to make on-site offers together with the customer. The aim of this process is to generate a(More)
The islet amyloid polypeptide (IAPP) and insulin are coproduced by the beta-cells of the pancreatic islets of Langerhans. Both peptides can interact with negatively charged lipid membranes. The positively charged islet amyloid polypeptide partially inserts into these membranes and subsequently forms amyloid fibrils. The amyloid fibril formation of insulin(More)
The knowledge-based configuration engine EngCon is presented which is developed in a cooperation of TZI Bremen and LENZE GmbH & Co KG Hameln, Germany. We discuss the system architecture and the configuration techniques used in EngCon. In our demonstration we try to focus on the differences to the LISP prototype KONWERK which was developed at the University(More)
We performed neutron reflectometry (NR) and total internal reflection fluorescence (TIRF) spectroscopy to characterize the structure and the protein binding capacity of a planar poly(acrylic acid) (PAA) brush at different temperatures. A PAA brush was prepared by spin-coating planar quartz or silicon wafers with a thin film of poly(styrene). Then, the(More)
We have studied the adsorption of alpha-lactalbumin at a planar poly(acrylic acid) (PAA) brush using neutron reflectometry (NR) and total internal reflection fluorescence (TIRF) spectroscopy. The PAA brush has been prepared by spin-coating silicon or quartz plates with a hydrophobic poly(styrene) film and by transferring the copolymer(More)
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