Surface ligands engineering of semiconductor quantum dots for chemosensory and biological applications

Advancing Aptamers as Molecular Probes for Cancer Theranostic Applications—The Role of Molecular Dynamics Simulation

“…QDs are often surface‐modified with ligands for various applications including sensing and receptor targeting. In comparison with organic fluorophores, QDs possess superior features including a wider emission spectra ranging between 450 and 1500 nm; possibility of photoexcitation by single wavelength; and great resistance to photobleaching, making them ideal candidates for prolonged in vitro and in vivo imaging as well as multiplex optical sensing . Also, scaffold protein‐based probes are well‐known for their high specificity with low nano‐ or subnano‐molar affinity as well as their small size ranging from 4 to 20 kDa.…”

Hybrid light emitting diodes based on stable, high brightness all-inorganic CsPbI3 perovskite nanocrystals and InGaN

“…The coordination of this type of ligands to the surface of a nanocrystal was previously reported for metal nanoparticles and semiconductor quantum dots, including perovskite nanocrystals. 10,29,30 Hence, we examine further the NC passivation by IDA using different replacement conditions.…”

A label-free RTP sensor based on aptamer/quantum dot nanocomposites for cytochrome c detection

“…To enhance the specicity and sensitivity between the QDs and the target and to broaden the application of QDs into biological detection, researchers have tried various small molecules, biomacromolecules, antibodies and macromolecular polymers to surface modify QDs, forming functional QDs. 36 Also specic biomolecules that can be easily synthesized and stored are used to modify QDs, which is undoubtedly the most effective measure. Aptamer, a single-stranded oligonucleotide, which can specically bind with and strictly identify the target molecules, 37 can be used to replace antibodies and as a specic target identication biological sensor element.…”