No, this product does not blink when excited by a red light. Therefore, they may not be suitable for applications in stochastic optical reconstruction microscopy where blinking is required.
900226
CdSe/ZnS core-shell type quantum dots
carboxylic acid functionalized, fluorescence λem 645 nm, 1 mg/mL in H2O
Synonym(s):
Fluorescent nanocrystals, QDs
Sign In to View Organizational & Contract Pricing.
About This Item
Linear Formula:
CdSe/ZnS
NACRES:
NA.23
UNSPSC Code:
26111700
Skip To
Product Name
CdSe/ZnS core-shell type quantum dots, carboxylic acid functionalized, fluorescence λem 645 nm, 1 mg/mL in H2O
form
dispersion
concentration
1 mg/mL in H2O
fluorescence
λem 645 nm
λem 645 nm±10 nm, quantum yield >50%
functional group
carboxylic acid
storage temp.
2-8°C
Quality Level
Looking for similar products? Visit Product Comparison Guide
Related Categories
1 of 4
This Item | 900222 | 900224 | 900221 |
|---|---|---|---|
| functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid |
| fluorescence λem 645 nm, λem 645 nm±10 nm, quantum yield >50% | fluorescence λem 580 nm, λem 580 nm±10 nm, quantum yield >50% | fluorescence λem 620 nm, λem 620 nm±10 nm, quantum yield >50% | fluorescence λem 540 nm, λem 540 nm±10 nm, quantum yield >50% |
| concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| form dispersion | form dispersion | form dispersion | form powder |
Application
The organic layer of the CdS/ZnS or CdSe/ZnS quantum dots (QDs) with carboxylic acid as reactive group consist of a monolayer of oleic acid/octadecylamine and a monolayer of amphiphilic polymer. The total thickness of organic layers on these QDs is approximately 4 nm. They find many applications in bioimaging and biosensing.[1][2][3]
Disclaimer
Do not freeze.
General description
Reactive group: Carboxylic acid.
Legal Information
Product of Ocean Nanotech, LLC.
hcodes
pcodes
Hazard Classifications
Aquatic Chronic 2
Storage Class
12 - Non Combustible Liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Hong Xu et al.
ACS applied materials & interfaces, 5(8), 2901-2907 (2013-04-05)
The excellent optical properties of quantum dots (QDs), such as high brightness, high photostability, continuous absorption, and narrow emission bandwidth, make them ideal as optical labels to develop QD-based immunohistofluorescence (IHF) imaging for multiplexing cancer biomarker detection on formalin-fixed and
Zengyan Wei et al.
Soft matter, 8(26), 6871-6875 (2012-09-18)
Genetically-engineered collagen peptides were assembled into freestanding films when QDs are co-assembled as joints between collagen domains. These peptide based films show excellent mechanical properties with Young's modulus of ~20 GPa, much larger than most of multi-composite polymer films and
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
Articles
Cadmium-free quantum dots for bioimaging offer design and synthesis strategies, enhancing bioimaging and sensing applications.
-
Do the CdSe/ZnS core-shell type quantum dots (product no. 900226) blink when excited with red light? Or are they useful in stochastic optical reconstruction microscopy where blinking is required?
1 answer-
Helpful?
-
-
What is the exact size (in nm) of this QD?
1 answer-
The inorganic size of these QDs is approximately 8.1 nm and the hydrodynamic size is approximately 18 nm.
Helpful?
-
-
The CdSe/ZnS quantum dots (product no. 900226) are indeed capable of single-photon emission. Some literature sources mention the use of quantum dots from Sigma-Aldrich as single-photon sources.
1 answer-
It is advised that all fluorophores should exhibit single-photon emission. Additionally, our quantum dots (QDs) also demonstrate single-photon emission.
Helpful?
-
Active Filters
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service