The PEG molecular weight is 2,000 Da.
The iron oxide nanoparticle is first coated with oleic acid, followed by an amphiphilic polymer containing carboxyl groups. Amine-terminated PEG (MW 2,000) is then covalently conjugated to the carboxyl groups on the polymer. Therefore, the PEG is covalently attached to the coating polymer.
The surface-exposed PEG has a methoxy (OCH₃) terminal group.
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747408
Iron oxide(II,III), magnetic nanoparticles solution
30 nm avg. part. size (TEM), PEG functionalized, dispersion, 1 mg/mL Fe in H2O
Synonim(y):
Fe NP PEG, FexOy, Magnetic iron oxide nanocrystals, Magnetite, Superparamagnetic iron oxide nanoparticles
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| Rozmiar/SKU | Dostępność | Cena netto |
|---|---|---|
10 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 2620,00 zł |
Informacje o tej pozycji
Wzór liniowy:
Fe3O4
Numer CAS:
Masa cząsteczkowa:
231.53
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
2620,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
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Pozwól nam pomócQuality Segment
form
dispersion, nanoparticles
concentration
1 mg/mL Fe in H2O
magnetization
>45 emu/g (at room temperature; under 4500 Oe)
color
black
avg. part. size
30 nm (TEM)
density
0.988 g/mL at 25 °C, ~1 g/mL at 25 °C
functional group
PEG
storage temp.
2-8°C
SMILES string
O=[Fe].O=[Fe]O[Fe]=O
InChI
1S/3Fe.4O
InChI key
SZVJSHCCFOBDDC-UHFFFAOYSA-N
General description
Concentration 5mg/ml includes total weight nanocrystals plus ligands.
Application
These magnetic nanoparticles are typically used in imaging or as contrast agents. The surface functionality allows for different ligation or further functionalization.
Do not freeze.
Do not freeze.
Legal Information
Product of Supplier: OCEAN NANOTECH LLC
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Ta pozycja | |||
|---|---|---|---|
| description 30 nm avg. part. size (TEM), PEG functionalized, dispersion, 1 mg/mL Fe in H2O | description 10 nm avg. part. size (TEM), PEG functionalized, 1 mg/mL Fe in H2O, dispersion | description 5 nm avg. part. size, 5 mg/mL in toluene | description 5 nm avg. part. size, 5 mg/mL in H2O |
| form nanoparticles, dispersion | form dispersion, nanoparticles | form nanoparticles, solution | form nanoparticles, dispersion |
| density ~1 g/mL at 25 °C, 0.988 g/mL at 25 °C | density 0.996 g/mL at 25 °C, ~1 g/mL at 25 °C | density 0.865 g/mL at 25 °C | density 1.00 g/mL at 25 °C |
| concentration 1 mg/mL Fe in H2O | concentration 1 mg/mL Fe in H2O | concentration 5 mg/mL in toluene | concentration 5 mg/mL in H2O |
| functional group PEG | functional group PEG | functional group - | functional group - |
| avg. part. size 30 nm (TEM) | avg. part. size 10 nm (TEM) | avg. part. size 5 nm | avg. part. size 5 nm |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. - | storage temp. - |
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Klasa składowania
12 - Non Combustible Liquids
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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Dear Sir/Madam, I had three questions: 1. Can you please say what the size of PEG is? 2. Is PEG covalently attached to the nanoparticles? 3. Is the surface-exposed PEG functionalized? (COOH or NH2, or anything else?) Thank you for your support!
1 answer-
Helpful?
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How can I determine the shelf life / expiration / retest date of this product?
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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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