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Key Documents

900255

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

PDDA coated, fluorescence λem 580 nm, 4 μM in H2O

Synonym(s):

Fluorescent nanocrystals, QDs

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About This Item

Linear Formula:
CdSe/ZnS
UNSPSC Code:
12352200

form

dispersion

concentration

4 μM in H2O

λmax

565 nm

fluorescence

λem 580 nm
λem 580 nm±10 nm, quantum yield >50%

storage temp.

2-8°C

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General description

Reactive group: PDDA.

Application

Amphiphilic polymer or polydiallydimethylammounium chloride (PDDA) coated CdS/ZnS or CdSe/ZnS quantum dots (QDs) do not contain any linkable reactive group on the surface and exhibit a zeta potential of more than +50 mV. These positively charged QDs find applications in cell tracking.

Legal Information

Product of Ocean Nanotech, LLC.

pictograms

Environment

hcodes

Hazard Classifications

Aquatic Chronic 2

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Qiangqiang Liu et al.
International journal of nanomedicine, 10, 7073-7088 (2015-11-26)
The growing potential of quantum dots (QDs) in biomedical applications has provoked the urgent need to thoroughly address their interaction with biological systems. However, only limited studies have been performed to explore the effects of surface charge on the biological

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