PREFACE 3 Preface It is indeed a pleasure to present our report of research activities 2003-2004. We thank you for your interest and your support during the last two years. We hope that this information is of use to you and look forward to continuing what has become excellent cooperation. Non viral delivery of BMP-2 plasmids with a new copolymer protected gene vector (Coprog) incorporated in a ...

In scanning beam interference lithography, a resist-coated substrate is scanned under phase-locked interfering beams to pattern large gratings or grids with nanometer level distortions. To achieve design goals, it is required to measure the spatial period, phase, and rotation of the interference fringes in real-time with high precision. In this article, we report the use of a Fresnel zone plate...

These images present the dramatic reduction in corrosion of a steel plate coated with a self-healing coating (right) as compared to a conventional coating. Both samples were scratched and placed in 5% NaCl for 5 days. The background is an optical image (2x magnifi cation), in the foreground is an SEM image of the scratch. In the self-healing sample, the scratch has almost completely self-healed...

Trevigen PARP Pharmacodynamic Assay II. In this article we present information regarding improvements to Trevigen’s PARP Pharmacodynamic Assay discussed last year. We provide validation data and accelerated shelf life data regarding key assay components for the new assay format which features: a 96 well assay plate pre-coated with PAR capture antibody, extended dynamic range, and high signal to...

The lateral Casimir force between a sinusoidally corrugated gold coated plate and large sphere was measured for surface separations between 0.2 to 0.3 microm using an atomic force microscope. The measured force shows the required periodicity corresponding to the corrugations. It also exhibits the necessary inverse fourth power distance dependence. The obtained results are shown to be in good ag...

BACKGROUND Dibutyl phthalate (DBP) is predominantly used as a plasticizer inplastics to make them flexible. Extensive use of phthalates in both industrial processes and other consumer products has resulted in the ubiquitous presence of phthalates in the environment. In order to better determine the level of pollution in the environment and evaluate the potential adverse effects of exposure to D...

Objective: Intravascular catheter-associated infection has been increasing hospitalization in post-surgery patients mainly due to microbial colonization of the catheter surface and formation of a superficial biofilm layer. The present study is aimed in developing an effective antibacterial device which can prevent colonization of organisms by modification of catheter. Methods: In the present st...

These kinetic mechanisms of eukaryote cells (type Dictyostelium discoideum) were tested in a two-plate cell detachment assay with the coated substrates as test plates and stainless steel discs as counter plates. The suspension of the cells in Sörensen buffer rested between the two plates, retained by the balance between gravity and capillary forces. All coatings influenced the cells leading to ...