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Key Documents

900229

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

amine functionalized, fluorescence λem 520 nm, 4 μM in 10 mM PBS

Synonym(s):

Fluorescent nanocrystals, QDs

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About This Item

Linear Formula:
CdSe/ZnS
UNSPSC Code:
26111700
NACRES:
NA.23

Quality Level

100

form

dispersion

λmax

505 nm

fluorescence

λem 520 nm
λem 520 nm±10 nm, quantum yield >50%

functional group

amine

storage temp.

2-8°C

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General description

Reactive group: Amine.

Application

The amine functionalized CdS/ZnS or CdSe/ZnS quantum dots (QDs) find applications in bioimaging and biosensing. The three main conjugation approaches reported in literature are conjugation using glutaraldehyde as a linker, conjugations with carboxylic acid containing molecules by using 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) coupling, and direct conjugation with isothiocyanates bearing molecules.

Legal Information

Product of Ocean Nanotech, LLC.

Pictograms

Environment
GHS09

Hazard Statements

H411

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Chronic 2

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kumar P, et al.
Sensors and Actuators B, Chemical, 202, 404-404 (2014)
Jian Wei Tay et al.
Scientific reports, 4, 3918-3918 (2014-01-30)
Phase distortions due to scattering in random media restrict optical focusing beyond one transport mean free path. However, scattering can be compensated for by applying a correction to the illumination wavefront using spatial light modulators. One method of obtaining the
Lily Yang et al.
Small (Weinheim an der Bergstrasse, Germany), 5(2), 235-243 (2008-12-18)
Epidermal growth factor receptor (EGFR) targeted nanoparticle are developed by conjugating a single-chain anti-EGFR antibody (ScFvEGFR) to surface functionalized quantum dots (QDs) or magnetic iron oxide (IO) nanoparticles. The results show that ScFvEGFR can be successfully conjugated to the nanoparticles
Kavitha Pathakoti et al.
Journal of environmental sciences (China), 25(1), 163-171 (2013-04-17)
Quantum dots (QD) nanoparticles have been widely used in biomedical and electronics fields, because of their novel optical properties. Consequently it confers enormous potential for human exposure and environmental release. To increase the biocompatibility of QDs, a variety of surface

Articles

Recent Advances in the Use of Cadmiumfree Quantum Dots for Bioimaging

Dr. Delehanty and researcher introduce recent advances in the use of cadmium-free quantum dots for bioimaging. Focus is placed on strategies that have emerged in the last five years for design, synthesis, and surface modifications of non-Cd quantum dots (QDs) for bioimaging and sensing applications.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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