The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2009
Filed:
Nov. 28, 2003
Heike Barlag, Nürnberg, DE;
Walter Gumbrecht, Herzogenaurach, DE;
Manfred Stanzel, Erlangen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
Electrically charged molecules need to be transported in order to create a DNA sensor. The following measures are undertaken: base metals are introduced into a solution as a positive ion; negatively charged molecules are transported in an opposite direction and are enriched in the vicinity of the measuring electrodes. Binding-specific separation of the charged molecules can be achieved by forming metal layers on the measuring electrodes by depositing metal ions from the solution when a suitable potential is selected. Target DNA can more particularly be introduced into the vicinity of the catcher molecules on the measuring electrodes and non-specifically bound DNA can be removed. According to the associated device, the electrode arrangement may be associated with a sacrificial electrode made of more base metal than the material of the measuring electrodes. The measuring electrodes in particular may be made of noble metal, preferably gold, and the sacrificial electrode may be made of copper.