The number of particles per mL is not determined for this product. The particle size and mg/mL concentration are verified in the Certificate of Analysis. Please see the link below to review a sample or lot specific Certificate:
https://www.sigmaaldrich.com/product/aldrich/919497#product-documentation
919497
CdSe/ZnS core-shell type quantum dots
amine functionalized, fluorescence λex 650 nm, 1 mg/mL in water
Synonym(s):
Fluorescent nanocrystals, QDs
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About This Item
Linear Formula:
CdSe/ZnS
UNSPSC Code:
26111700
NACRES:
NA.23
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form
liquid
Quality Level
concentration
1 mg/mL in water
fluorescence
λex 650 nm
FWHM 25-30 nm
, quantum yield ≥50%
functional group
amine
storage temp.
2-8°C
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General description
Reactive group: Amine
Application
CdSe/ZnS quantum dots (QDs) with carboxylic acid in water.The unique size and composition tunable electronic property of these very small, semiconducting quantum dots make them very appealing for a variety of applications and new technologies. Applications include biomedical imaging and sensing, diagnostics, displays and photovoltaics.[1][2]
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Do not freeze.
hcodes
pcodes
Hazard Classifications
Aquatic Chronic 3
Storage Class
12 - Non Combustible Liquids
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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Bioconjugation of quantum dots: Review & impact on future application
Foubert A, et al.
TrAC, Trends in Analytical Chemistry, 83, 31-48 (2016)
Jun Yao et al.
Acta biomaterialia, 74, 36-55 (2018-05-08)
According to recent research, nanotechnology based on quantum dots (QDs) has been widely applied in the field of bioimaging, drug delivery, and drug analysis. Therefore, it has become one of the major forces driving basic and applied research. The application
Articles
Colloidal quantum dots are nano-meter sized, single-crystalline semiconductor fragments that can have highly customizable optical, electronic, and chemical properties through controlled synthesis.
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What is the concentration in particles per mL?
1 answer-
Helpful?
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What is the size(diameter) of the QD?
1 answer-
The size information for these CdSe/ZnS core-shell type quantum dots is as follows:
Core diameter is 4 - 4.5 nm
Shell thickness is 6 - 7 nm (Thickness of shell is expressed as total diameter added to core).
The total diameter is 11 - 12 nmHelpful?
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