Gothenburg Sensor Devices Ab

Cline Scientific Ab

Nanolyze Ab

Anders Lundgren

Hans Elwing

Fredrik Höök

Mats Hulander

Mattias Berglin

Anders Gunnarsson

Marta Bally

Stephan Block

Lisa Simonsson Nyström

Björn Johansson Fast

Björn Agnarsson

The disclosure relates to a method for determining a hydrodynamic size of an object, such as a nano-sized object, said method comprising the steps of: &#x2014;providing a fluid interface, &#x2014;linking said object to said fluid interface thereby providing a linked object, whereby the movement of said linked object is restricted by virtue of being linked to said fluid interface, &#x2014;providing and determining a hydrodynamic shear force that acts on said linked object, &#x2014;tracking the movement of said linked object, and &#x2014;calculating the hydrodynamic size of the object using the Einstein-Smoluchowski relation.

Method for determining a hydrodynamic size of an object

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

A waveguide structure for evanescent wave microscopy and/or spectroscopy, comprising an optically transparent core layer, a lower dielectric cladding layer and an upper dielectric cladding layer arranged on opposite sides of the core layer. The core layer has a refractive index higher than the refractive indices of the cladding layers. The upper cladding layer is made of an organic material. A sample well is arranged on an upper surface of the core layer formed by a cavity in the upper cladding layer, the sample well being adapted to contain a sample medium with one or more sample objects. The core layer is made of a first dielectric inorganic material, and the upper cladding layer has a refractive index which closely matches the refractive index of the sample medium. A method for manufacturing such waveguide structure, and a measurement system comprising the waveguide structure are also disclosed.

Waveguide structure

Growing community of inventors

Varberg, Sweden

Anders Lundgren