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- W4309773146 abstract "Colloidal quantum dots (QDs) are of widespread importance for their unique combination of physicochemical properties and a number of prospective applications, and the search for efficient synthetic methods to produce readily dispersible, functionally stable and ligand-free quantum dot-based inks is a vital and timely area of research. We describe a convenient room-temperature and non-external-surfactant-assisted organometallic synthetic strategy for the reproducible preparation of solution-processable organic ligand-free zinc oxide (ZnO) QDs. The process involves the controlled transformation of a DMSO solution of commercially available diethylzinc upon exposition towards atmospheric air, where H2O and O2 act simultaneously as oxygen sources, and DMSO acts both as a solvent and a low-molecular-weight l-type surface protector. The resulting QDs with a narrow size distribution (4.7 ± 0.8 nm) were comprehensively characterized with a combination of various analytical techniques, which nicely documented their unique stabilities when dried, precipitated, re-dissolved or exposed to air. Moreover, to substantiate idealized surface passivation of the resulting QDs, we investigated their stability in the biological environment and nano-specific activity toward selected normal and cancer cell lines, and no significant toxic effect was revealed. Undoubtedly, the reported one-step-one-pot organometallic approach paves the way to high-quality and bio-stable ZnO QDs coated by an easily and reversibly removable organic shell, auguring applications in a vast array of devices and nanomedicine." @default.
- W4309773146 created "2022-11-29" @default.
- W4309773146 creator A5003949764 @default.
- W4309773146 creator A5010534401 @default.
- W4309773146 creator A5014978655 @default.
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- W4309773146 creator A5052651510 @default.
- W4309773146 creator A5056995811 @default.
- W4309773146 creator A5065485396 @default.
- W4309773146 date "2023-01-01" @default.
- W4309773146 modified "2023-10-18" @default.
- W4309773146 title "Towards bio-safe and easily redispersible bare ZnO quantum dots engineered via organometallic wet-chemical processing" @default.
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