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On the quenching of semiconductor quantum dot photoluminescence by proximal gold nanoparticles

PONS, THOMAS ; MEDINTZ, IGOR L. ; SAPSFORD, KIM E. ; HIGASHIYA, SEIICHIRO ; GRIMES, AMI F. ; ENGLISH, DOUGLAS S. ; MATTOUSSI, HEIDI

Luminescent quantum dots (QDs) were proven to be very effective fluorescence resonance energy transfer donors with an array of organic dye acceptors, and several fluorescence resonance energy transfer based biosensing assemblies utilizing QDs ha[...]

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A reactive peptidic linker for self-assembling hybrid quantum dot-DNA bioconjugates

MEDINTZ, IGOR L. ; BERTI, LORENZO ; PONS, THOMAS ; GRIMES, AMI F. ; ENGLISH, DOUGLAS S. ; ALESSANDRINI, ANDREA ; FACCI, PAOLO ; MATTOUSSI, HEIDI

Self-assembly of proteins, peptides, DNA, and other biomolecules to semiconductor quantum dots (QD) is an attractive bioconjugation route that can circumvent many of the problems associated with covalent chemistry and subsequent purification. Po[...]

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Solution-phase single quantum dot fluorescence resonance energy transfer

PONS, THOMAS ; MEDINTZ, IGOR L. ; WANG, XIANG ; ENGLISH, DOUGLAS S. ; MATTOUSSI, HEIDI

We present a single particle fluorescence resonance energy transfer (spFRET) study of freely diffusing self-assembled quantum dot (QD) bioconjugate sensors, composed of CdSe-ZnS core-shell QD donors surrounded by dye-labeled protein acceptors. W[...]

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