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Ensemble photophysical profiles of symmetrically shelled (symm-shelled) CdSe/CdS QDs and QD655s in HEPES buffer or oxygenated cerebrospinal fluid (aCSF). (a) Transient PL dynamics of symm-shelled QDs and QD655s in HEPES and oxygenated aCSF. (b) Absorbance (dotted) and emission (solid) spectra of (b) symm-shelled QDs and (c) QD655s in HEPES and oxygenated aCSF.
