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We describe the in-situ electrochemical synthesis of a chromium-loaded CdS nanoprobe (CdS-Cr) for use in ultrasensitive electrochemiluminescence (ECL) detection of thrombin. A glassy carbon electrode was covered with (a) a film of electro-polymerized polyaniline nanofibers (PANI-NF), (b) the in-situ synthesized CdS-Cr nanoprobe, (c) heparin, and (d) a coating of BSA to prevent unspecific adsorption...
The article describes a quartz crystal microbalance (QCM) biosensor for the determination of nucleic acids via a DNA-templated assembly of silver nanoclusters (AgNCs) which represents a novel way for efficient signal amplification. A QCM was modified with probe DNA to specifically capture target DNA. Then, DNA-templated AgNCs were assembled to enhance the sensitivity of the QCM sensor via Ag(I) ions...
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