2022年7月14日 · To establish a straightforward approach for the bead encoding with QDs with minimized loss in luminescence, we systematically assessed the incorporation of oleic acid/oleylamine-stabilized...

2011年2月15日 · Multiple CdTe quantum dots (QDs) were incorporated in SiO 2 beads using a reverse micelle route (i.e., a water-in-oil emulsion) and a precursor solution of SiO 2-coated CdTe QDs as the water phase. The QDs in the beads retained their initial photoluminescence efficiency (56%) because they had a thin SiO 2 shell that prevented removal of the ...

2001年7月1日 · Here we report the development of optically encoded microbeads (1.2 μm) for massively parallel and high-throughput analysis of biological molecules. This encoded-bead technology is based on the...

2011年7月20日 · SiO 2 beads with quantum dots (QDs) including hydrophilic CdTe or hydrophobic CdSe/ZnS were prepared through sol–gel procedures. These beads contained single or multiple QDs by controlling the ligand exchange and the QD assembly during incorporation.

2023年7月24日 · Surface-functionalized polymer beads encoded with molecular luminophores and nanocrystalline emitters such as semiconductor nanocrystals, often referred to as quantum dots (QDs), or magnetic...

2024年6月1日 · In this study, we established a versatile and simple magnetic-assisted microfluidic method for fast bacterial detection. Quantum dots (QDs) were loaded onto magnetic beads (MBs) to construct performance enhanced on-chip capture of bacteria. Escherichia coli (E. coli), as a model bacterium was studied.

Quantum dots (QDs) based fluorescent nanobeads are considered as promising materials for next generation point-of-care diagnosis systems. In this study, we carried out, for the first time, the synthesis of QDs nanobeads using polystyrene (PS) nanobead as the template.

We have examined the possible applications of QDs for flow cytometric measurements (FCM) by studying their excitation - emission spectra and their binding to paramagnetic beads. We labelled beads with either QDs or a commonly-used fluorochrome (FITC) and studied their fluorescence intensity by FCM.

Using single-color QDs, we systematically investigated the condi-tions for incorporating them into polymer microbeads. The results reveal that cross-linked beads, formed by emulsion polymerization of styrene, divinylbenzene, and acrylic acid, are well suited for QD incorporation.

2007年2月8日 · Multicolor encoded beads were achieved by incorporating two color core-shell quantum dots (QDs) (CdSe/ZnS) to commercial polystyrene (PS) beads. By controlling the concentration ratios of the two quantum dots (QDs) in doping solutions, a series of codes with different intensity ratios were obtained.