Other

Cline Scientific Ab

I-tech Ab

Hans Elwing

Anders Lundgren

Mats Hulander

Mattias Berglin

Lena M&aring;rtensson

The present invention regards nano surfaces and particularly a gradient based nano surface. According to embodiments of the invention a surface bound gradient is created by distributed nanoparticles along a plane surface. This procedure greatly reduces the number of prepared surfaces needed, as well as the methodological error of analysis of adsorption and adhesion phenomena.

Method for preparing a surface with a controlled coverage of nanograde particles

The use of an aromatic compound substituted with at least one heterocyclic amine and possibly additional substituents, such as medetomidine and clonidine, or a functionally analogous derivative thereof, as an agent for the inhibition of marine biofouling on a surface, by application thereon of said compound, is disclosed. Also a method for inhibition of marine biofouling on a surface by application of said compound is disclosed.

Inhibition of marine biofouling of surfaces

Method for the determination of enzymatic activity in which a sample is added to a well in or a defined surface of a liquid-saturated porous matrix covering a thin layer of a substance sensitive to enzymatic lysis deposited on the solid surface of a carrier. The sample is permitted to diffuse or migrate electrophoretically in the matrix and react with the substance sensitive to enzymatic lysis. The matrix is then removed whereon lysis can be indicated on the solid surface. The enzyme-containing sample can be a bacteria colony on the matrix. Plastic material is preferred for the solid surface.

Enzymatic indicator system

Gel diffusion immunoassay including .alpha.-feto protein determination

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Askim, Sweden

Hans Elwing