These beads demonstrate an approximate Excitation/Emission of 481/644 nm, please see the link below to review the product specifications:
https://www.sigmaaldrich.com/specification-sheets/764/990/L9904-BULK.pdf
Przejdź do
L9904
Latex beads, amine-modified polystyrene, fluorescent orange
aqueous suspension, 0.1 μm mean particle size
Synonim(y):
Amine-Modified Latex Beads, Fluorescent Orange Beads
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| Gabaryty przesyłki | SKU | Dostępność | Cena netto |
|---|---|---|---|
| 1 mL | Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności | 406,00 zł |
Informacje o tej pozycji
406,00 zł
Skontaktuj się z Obsługą Klienta, aby uzyskać informacje na temat dostępności
Pomoc techniczna
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aqueous suspension
Quality Segment
composition
Solids, 2.5%
technique(s)
cell based assay: suitable
mean particle size
0.1 μm
fluorescence
λex ~475 nm; λem ~540 nm
application(s)
cell analysis
Application
Latex beads, amine-modified polystyrene, fluorescent orange has been used in the preparation of nano-particles in biophysical characterization. It has also been used in the preparation of nano-particles for cytotoxicity studies in yeast and cell lines.
Amine-modified polystyrene latex beads have been used to develop an electrochemical nitrite nanosensor as well as to validate a pharyngeal aspiration technique for exposing the mouse lung to respirable particles.
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Ta pozycja | |||
|---|---|---|---|
| technique(s) cell based assay: suitable | technique(s) - | technique(s) cell based assay: suitable | technique(s) - |
| fluorescence λex ~475 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm | fluorescence λex ~520 nm; λem ~540 nm |
| application(s) cell analysis | application(s) - | application(s) cell analysis | application(s) - |
| form aqueous suspension | form aqueous suspension | form aqueous suspension | form aqueous suspension |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level - |
| composition Solids, 2.5% | composition Solids, 2.4-2.6% | composition Solids, 2.4-2.6% | composition Solids, 2.5% |
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Klasa składowania
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.
Edwin H Shin et al.
Nanoscale, 5(13), 5879-5886 (2013-05-24)
The use of nanoparticles for cellular therapeutic or sensing applications requires nanoparticles to bind, or adhere, to the cell surface. While nanoparticle parameters such as size, shape, charge, and composition are important factors in cellular binding, the cell itself must
Esen Efeoglu et al.
The Analyst, 142(18), 3500-3513 (2017-08-24)
Nanotoxicology has become an established area of science due to growing concerns over the production and potential use of nanomaterials in a wide-range of areas from pharmaceutics to nanomedicine. Although different cytotoxicity assays have been developed and are widely used
Exposure of the yeast Saccharomyces cerevisiae to functionalized polystyrene latex nanoparticles: influence of surface charge on toxicity
Nomura T, et al.
Environmental Science & Technology, 47(7), 3417-3423 (2013)
Numer pozycji handlu globalnego
| SKU | NUMER GTIN |
|---|---|
| L9904-1ML | 04061838106162 |
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What is the correct emission wavelength? The product page on the website (https://www.sigmaaldrich.com/NL/en/product/sigma/l9904) says 540 nm, but the specification sheet mentions 644 nm (https://www.sigmaaldrich.com/specification-sheets/764/990/L9904-BU.
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is it possible to know the molecoar weight to calculate the molarity of the suspension?
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Unfortunately, the molecular weight of this product is not determined.
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How did you verify the amine coating? What spectroscopy method have you used to verify the amine coating? Can you show the result that proves that the amine has been coated? (For example, if you have done FTIR, then can you show us the peaks)
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The amine modification of these beads is validated through an extensive series of titrations. Unfortunately, the method is considered proprietary. There is no specific documentation or data available to share.
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what is the concentration of polystyrene microplastic [mg/ml] in this product No. L9904
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The concentration of this aqueous suspension is 2.5% w/v or 2.5g/100 mL. This equates to 25mg per 1 mL package.
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