Dnae Group Holdings Limited

Chung-Pei Ou

Christofer Toumazou

Pantelis Georgiou

Yan Liu

Samuel Reed

Sam Reed

An apparatus with a transducer having a first output signal and arranged to receive an electrical input. The transducer switches the first output signal between an ON and OFF state. The apparatus has a chemical sensing surface coupled to the transducer arranged to receive a chemical input. A signal generator oscillates one or more of said inputs to vary the switching point of the transducer. The oscillating input may be the chemical input and/or the electrical input. The output signal may be a pulse whose period ON or OFF is determined by the oscillating input modulated by the chemical input.

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Singapore, Singapore

Chung-Pei Ou