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Bio-molecular recognition is detected by the unique optical properties of self-assembled gold nanoparticles on the unclad portions of an optical fiber whose surfaces are modified with a receptor. To enhance the performance of the sensing platform, the sensing element is integrated with microfluidic chips to reduce sample and reagent volume, to shorten response time and analysis time, as well as to...
This paper describes a method for the quantitative detection of biochemical binding events onto microstructured and functional surfaces on a truly single molecular level. The classic Streptavidinbiotin system is used to provide the last detection step and the binding is visualized via gold-nanoparticles in a SEM. We showed that this allows a spatial resolution down to the nanometer scale. It also...
Poly (sodium 4-styrenesulfonate) (PSS) was grafted onto carbon black surface by ambient surface-initiated atom radical transfer polymerization. And the carbon paste electrodes modified by CB-g-PSS and MWNTs were completed. CB-g-PSS and MWNTs had no effect on direct electron transfer based on the carbon paste electrode, but increased the redox speed of Fe [(CN)6]3- / Fe[(CN)6]4- and led to stronger...
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