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An 8-pixel quartz crystal resonator array with a fundamental resonance frequency of 73 MHz has been designed and fabricated. We established a protocol for selectively functionalizing the surface of resonator array via electrochemical desorption. The creation of hydrophobic and hydrophilic surface with methyl terminated and carboxylate terminated alkanethiols is characterized by Fourier transform spectroscopy...
Highly dispersed gold (Au) nanoparticles (NPs) supported on nitrogen doped multi-walled carbon nanotubes (NCNTs) were synthesised using a simple electrochemical method. Morphology of Au-NPs and their dispersion profile were studied depending on the applied potential and deposition duration. Novel conductometric gas sensors were developed from the thin films of Au-NPs/NCNTs nanocomposites and evaluated...
A fully integrated innovative micro system for biochemical analysis is presented. Direct electrical detection by means of an electrochemical method is used. In contrast to state-of-the-art optical methods, this allows for a simple cost-optimized realization of sensor systems with high sensitivity. The system integration is based on a standard CMOS process. Referring to the example of a DNA sensor...
We have proposed an electrochemical detection method for DNA molecules based on an extended gate field effect transistor (EGFET) sensing chip which consists of one gold plate for molecule recognition and FET part for signal transduction. DNA Probes were immobilized on the gold plate by forming mixed monolayers of thiolated single-stranded oligonucleotide (HS-ssDNA) and alkanethiols, like 6-hydroxy-1-hexanethiol...
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