Devices for the electrochemical detection of a nucleotide sequence, analysis cassettes, systems of analysis cassettes, supplemental modules, and methods for producing analysis cassettes

A system of analysis cassettes comprising a plurality of analysis cassettes, wherein each analysis cassette of the plurality comprises at least one working electrode for detecting at least one nucleotide sequence, and wherein the analysis cassettes differ from one another in that each is configured for detecting at least one of a particular nucleotide sequence and a combination of nucleotide sequences, wherein the particular nucleotide sequence and the combination of nucleotide sequences differ from one another.

A supplemental module for connection with a digital interface of a portable computer comprising:

• an analog interface for connection with an exchangeable analysis cassette, which comprises:
• an electronic circuit arrangement configured for impressing at least one of a voltage and a current on at least one of a working electrode, a counter-electrode, and a reference electrode in the analysis cassette, and for conditioning at least one of a current and a voltage signal created as a result of an electrochemical reaction in the analysis cassette, and
• a temperature-regulating element for cooling and/or heating a fluid introduced into the analysis cassette, wherein the supplemental module can be connected to the portable computer such that the temperature-regulating element can be fed from an energy source of the computer.