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Preparation of high performance electrochemical biosensing interface for the sensitive and rapid detection of human metabolites is of great interest for health care and biomedical science. In this paper, based on the adhesion technique of marine mussels, we designed and prepared a novel biosensor with a micro/nano-biointerface of Fe3O4-Mn3(PO3)2@Ni foam, which offered a three dimensional (3D) living...
A new quantum dot (QD)-based pH sensor design is investigated. The sensor is synthesized based on the self-assembly of green QDs onto treated spores to form QD@spore nanocomposites. The nanocomposites are characterized using laser scanning confocal microscopy, transmission electron microscope, and fluorescence spectroscopy, among others. Fluorescence measurements showed that these nanocomposites are...
Biomolecular immobilization and construction of the sensing platform are usually crucial for the successful development of a high-efficiency detection system. Herein we report on a novel and label-free signal-amplified aptasensing for sensitive electrochemical detection of small molecules (adenosine triphosphate, ATP, used in this case) by coupling with target-induced hybridization chain reaction...
Perfluorocarboxylic acids (PFCAs) are persistent pollutants being widely detected in the environment. In order to quantitatively determine PFCAs, a simple and rapid method for the simultaneous determination of five PFCAs was developed by coupling high performance liquid chromatographic (HPLC) separation and corona-charged aerosol detector (CAD). The PFCAs were separated on a Symmerry ® C8...
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