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777935

Sigma-Aldrich

CdTe core-type quantum dots

COOH functionalized, fluorescence λem 520 nm, powder

Synonym(e):

Fluorescent nanocrystals, QDs, artificial atoms

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10 MG
CHF 207.00
25 MG
CHF 512.00

CHF 207.00


Voraussichtliches Versanddatum08. April 2025


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10 MG
CHF 207.00
25 MG
CHF 512.00

About This Item

Lineare Formel:
CdTe
EG-Nummer:
UNSPSC-Code:
26111700
NACRES:
NA.23

CHF 207.00


Voraussichtliches Versanddatum08. April 2025


Bulk-Bestellung anfordern

Qualitätsniveau

Form

powder

Fluoreszenz

λem 520 nm
, quantum yield 36%

Lagertemp.

2-8°C

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Anwendung

Cadmium Telluride Quantum Dots (CdTe QDs) are available in solid form. They are coated with carboxyl groups which makes them water soluble to make aqueous solutions. These carboxyl functionalized hydrophilic quantum dots can be further conjugated for use as labels. CdTe QDs can be used for optical and display applications; solar cells and biomedical applications.

Piktogramme

Exclamation markEnvironment

Signalwort

Warning

Gefahreneinstufungen

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3


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Die Dokumentenbibliothek aufrufen

Julie Hottechamps et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 21(9), 853-862 (2020-02-23)
As luminescent quantum dots (QDs) are known to aggregate themselves through their chemical activation by carbodiimide chemistry and their functionalization with biotin molecules, we investigate both effects on the fluorescence properties of CdTe QDs and their impact on Förster Resonant
R S Aga et al.
Nanotechnology, 20(46), 465204-465204 (2009-10-23)
A photosensitized high-surface area transparent electrode has been employed to increase the short circuit current of a photovoltaic device with a blend of poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C61 butyric acid methyl ester (PCBM) as the active layer. This is achieved
P Haro-González et al.
Small (Weinheim an der Bergstrasse, Germany), 8(17), 2652-2658 (2012-06-16)
The potential use of CdTe quantum dots as luminescence nano-probes for lifetime fluorescence nano-thermometry is demonstrated. The maximum thermal sensitivity achievable is strongly dependent on the quantum dot size. For the smallest sizes (close to 1 nm) the lifetime thermal
A Rameshkumar et al.
Colloids and surfaces. B, Biointerfaces, 101, 74-82 (2012-07-17)
This study was undertaken to evaluate the antioxidant potential of an aqueous extract from Merremia emarginata leaves because this plant has a very high flavonoid and phenol content. The in vitro antioxidant activity was measured by diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic

Artikel

Dye-sensitized solar cells as a promising, low-cost photovoltaic technology.

Professor Sharma and colleagues review the synthesis and applications of this novel material. This includes a discussion of the unique properties of quantum dots and their suitability for solar cell applications, along with common synthesis techniques used to develop these materials.

Professor Xiaohu Gao (University of Washington, USA) provides a overview of recent quantum dot (QD) advancements and their potential for advancing bioassay and bioimaging technologies.

Perovskite quantum dots research progresses overcoming challenges, enabling rapid development of light-emitting devices.

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Protokolle

Selenium's roles range from essential dietary element to semiconductor in advanced applications like xerography.

Questions

1–3 of 3 Questions  
  1. I would like to know the TEM size of CdTe core-type quantum dots COOH functionalized (777935), fluorescence λem 520 nm, powder for calculation purpose

    1 answer
    1. The particle size of this product is approximately 2.0 nm. Unfortunately, there is no information on how the particle size is measured.

      Helpful?

  2. What is the molecular weight of 777935 - CdTe core-type quantum dots COOH functionalized, fluorescence λem 520 nm, powder

    1 answer
    1. The molecular weight of this product is approximately 16000 Da.

      Helpful?

  3. CdTe core-type quantum dots (COOH functionalized, fluorescence λem 520 nm, powder) Hi,I would like to ask about the concentration used of the Q.D and the amino functionalized DNA for EDC conjugation. EDC concentration,Q.D. concentration, DNA conc.

    1 answer
    1. This product is not tested for suitability in any specific application. While these Quantum Dots are hydrophilic, the researcher would have to determine suitability. The links below may offer some helpful information:
      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5071820/
      https://pubs.acs.org/doi/10.1021/nn1021346

      Helpful?

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