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Fluid suspension biochips based on quantum dot encoded microspheres have been widely used in tumor immunodetection. Embeding CdSe/ZnS quantum dots in PLA-MA using Shirasu porous glass membrane emulsification technique, which has high fluorescence intensity, good stability, and good dispersion, can be produced. When doing quaternary immunoassays on tumor markers CA125, CA724, and CEA by CdSe/ZnS QD-encoded PLA-MA microsphere binding flow cytometry, the results revealed that PLA-MA fluorescent microspheres demonstrated good biocompatibility, stable coding signals, low background noise, and low detection limits.
Source link: https://europepmc.org/article/MED/35420086
Fabrication of high-performance, flexible quantum-emitting diodes requires the fabrication of a flexible transparent electrode to replace the standard brittle indium tin oxide transparent electrode, as well as flexible substrate planarization. Using WO X /Ag/Wo X and MoOx/MoO X OMO electrodes, you could get good electron supply and injection into an electron-transporting layer. The latest yield was much higher than that of a rigid QLED with an ITO cathode and was much higher than previous reported QLEDs that used the same quantum-dote and electron-transporting layer materials as our analysis.
Source link: https://europepmc.org/article/MED/35208393
To synthesize heterostructures of CdSe and CdTe quantum dots with varying ratios of electron-donating CdTe QDs and electron-accepting CdSe QDs, it was used by Carbodiimide-mediated coupling chemistry. Charge acceptors on the surfaces of QDs can significantly influence the rate of excited-state charge transfer, with QDs capable of accommodating far more acceptors than molecular chromophores. We present here an exciting-state electron transfer within heterostructure-forming mixtures of 4-ATP-capped CdTe and NHS-capped CdSe QDs with varying molar ratios from CdTe to CdSe. As the relative number of electron-accepting CdSe QDs within mixtures of 4-ATP-capped CdTe and NHS-capped CdTe QDs increased, the rate and effectiveness of electron transfer increased by 100-fold and 7. 4-fold, respectively, as demonstrated by dynamic quenching of band-edge emissions from CdTe QDs.
Source link: https://europepmc.org/article/MED/35135276
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