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Aiming to find an alternative electrochemiluminescence (ECL) quenching route of high efficiency, biocatalytic precipitation (BCP) was firstly coupled with ECL for investigating its insulating effect on ECL. Experimental data revealed that an insulating layer could be formed via BCP onto the electrode surface, inhibiting the reaction between the coreactant and luminophore and thereby impairing the...
A highly soluble poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid)/Au (PEDOT-PSS/Au) nanocomposite was prepared via one-step chemical synthesis and the matrix was characterized by UV–vis spectroscopy (UV–vis), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM) and transmission electron microscope (TEM). Due to the excellent aqueous compatibility and biocompatibility,...
A biohybrid hydrogel is fabricated by integrating horseradish peroxidase (HRP) with polyhydroxyl cellulose (PHC), which is prepared by mixing of poly(vinyl alcohol) and carboxymethyl hydroxyethyl cellulose. PHC provides a biocompatible microenvironment for HRP, and the UV-vis spectrum indicates that the confromation of HRP-loaded biohydrogel is well retained relative to free HRP. Based on the direct...
A surface plasmon resonance (SPR) biosensor based on wavelength modulation with a fixed angle of incidence incorporating an acousto-optic tunable filter (AOTF) is described. The AOTF is used as the wavelength selector of the AOTF-SPR biosensor system. The wavelength range of the AOTF is 440-790nm. The wavelength is modulated by inputting AOTF 0-5V voltage and one voltage corresponds to one wavelength...
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