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742945

Sigma-Aldrich

TurboBeads™ TEMPO

≥99%

Sinónimos:

Nano particles, magnetic, TEMPO functionalized

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About This Item

UNSPSC Code:
12352128
NACRES:
NA.22

product line

TurboBeads™

assay

≥99%

form

powder

composition

carbon content, ≤14 wt. %

reaction suitability

reaction type: solution phase peptide synthesis
reactivity: alcohol reactive

extent of labeling

≥0.1 mmol/g loading (TEMPO)

magnetization

≥120 emu/g, mass saturation

surface area

≥15 m2/g

average diameter

≤50 nm

suitability

conforms to structure for Infrared spectrum

Application

Recyclable TEMPO (2,2,6,6-tetramethylpiperidine 1-oxyl radical)-coated nanoparticles have been prepared by the immobilization of TEMPO on iron oxide (Fe3O4) superparamagnetic nanoparticles.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Analysis Note

Proof of identity: metallic cobalt identity from XRD

air-stability:
weight gain in air at 400°C >20 wt.%
weight gain in air at 100°C <3 wt.%

Legal Information

TurboBeads is a trademark of TurboBeads LLC

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
BCBK1100V
BCBK1100

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Alexander K Tucker-Schwartz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 16(42), 12718-12726 (2010-09-21)
The organic oxidant TEMPO (2,2,4,4-tetramethylpiperdine-1-oxyl) was immobilized on iron oxide (Fe(3)O(4)) superparamagnetic nanoparticles by employing strong metal-oxide chelating phosphonates and azide/alkyne "click" chemistry. This simple preparation yields recyclable TEMPO-coated nanoparticles with good TEMPO loadings. They have excellent magnetic response and
Jacinto Sá et al.
Nanoscale, 5(18), 8462-8465 (2013-07-12)
Non-magnetic Pt catalysts, supported on carbon coated magnetic Co nanoparticles, changed catalytic performance in the presence of an external magnetic field. This behavior relates to an electronic change of Pt induced by a localized magnetic field, which modifies the CO
Quirin M Kainz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(30), 10038-10045 (2013-06-19)
Unprecedented magnetic borohydride exchange (mBER), magnetic Wang aldehyde (mWang) and magnetic amine resins were prepared from highly magnetic polymer-coated cobalt or iron nanoparticles. Microwave irradiation was used to obtain excellent degrees of functionalization (>95 %) and loadings (up to 3.0 mmol  g(-1))
Hideya Kawasaki et al.
Analytical chemistry, 84(21), 9268-9275 (2012-09-29)
Graphene-coated cobalt nanoparticles surface-functionalized with benzylamine groups (CoC-NH(2) nanomagnets) were shown to effectively enrich analytes for surface-assisted laser desorption/ionization mass spectrometry (affinity SALDI-MS) analysis. These CoC-NH(2) nanomagnets are highly suited for use with affinity SALDI-MS because their mean diameter of
Inge K Herrmann et al.
Nanoscale, 5(18), 8718-8723 (2013-08-01)
In a number of clinical conditions such as intoxication, bacteraemia or autoimmune diseases the removal of the disease-causing factor from blood would be the most direct cure. However, physicochemical characteristics of the target compounds limit the applicability of classical filtration
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Artículos

TEMPO Catalyzed Oxidations

TEMPO (2,2,6,6-Tetramethylpiperidinyloxy or 2,2,6,6-Tetramethylpiperidine 1-oxyl) and its derivatives are stable nitroxy radicals used as catalysts in organic oxidation reactions. TEMPO was discovered by Lebedev and Kazarnovskii in 1960. The stable free radical nature of TEMPO is due to the presence of bulky substituent groups, which hinder the reaction of the free radical with other molecules.

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