730793

Silver, dispersion

nanoparticles, 20 nm particle size (TEM), 0.02 mg/mL in aqueous buffer, contains sodium citrate as stabilizer

• Synonim(y): Colloidal silver
• Wzór liniowy: Ag
• Numer CAS: 7440-22-4
• Masa cząsteczkowa: 107.87
• Numer MDL: MFCD00003397
• Kod UNSPSC: 12352302
• Identyfikator substancji w PubChem: 329764595
• NACRES: NA.23

Właściwości

• Postać: nanoparticles
• Poziom jakości: 100
• zawiera: sodium citrate as stabilizer
• stężenie: 0.02 mg/mL in aqueous buffer
• współczynnik refrakcji: n20/D 1.333
• wielkość cząstki: 20 nm (TEM)
• gęstość: 0.986 g/mL at 25 °C
• fluorescencja: λ_em 401 nm FWHM 66 nm
• temp. przechowywania: 2-8°C
• ciąg SMILES: [Ag]
• InChI: 1S/Ag
• Klucz InChI: BQCADISMDOOEFD-UHFFFAOYSA-N

Opis

Opis ogólny

Our 20 nm silver nanoparticles are ideal for biosensing and fluorescent imaging applications.These spherical particles are stabilized in an aqueous citrate buffer to prevent aggregation. Silver nanoparticles efficiently absorb and scatter light due to the conduction electrons on their surface undergoing collective oscillations, known as surface plasmon resonance (SPR), when excited by specific wavelengths. Unlike gold nanoparticles, which absorb at longerwavelengths (500+ nm), silver nanoparticles absorb at shorter wavelengths(400-450 nm). At a 20 nm size, our nanoparticles have a peak absorptionwavelength (λ) of 400 nm and a narrow full width at half maximum (FWHM) of 66nm, thanks to their high monodispersity. These optoelectronic properties, combined with their high surface area, make them effective for detecting biomolecules, pathogens, and environmental contaminants.

Zastosowanie

• Surface-enhanced Raman analysis of sulfa drugs on colloidal silver dispersion.: This research explores the application of colloidal silver dispersion for the surface-enhanced Raman scattering (SERS) analysis of sulfa drugs. The study demonstrates the potential of silver nanoparticles in enhancing Raman signals, making it a valuable technique for detecting and analyzing pharmaceuticals at low concentrations (Sutherland et al., 1990).

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS09
• Hasło ostrzegawcze: Warning
• Zwroty wskazujące rodzaj zagrożenia: H410
• Zwroty wskazujące środki ostrożności: P273 - P391 - P501
• Klasyfikacja zagrożeń: Aquatic Acute 1 - Aquatic Chronic 1
• Kod klasy składowania: 12 - Non Combustible Liquids
• Klasa zagrożenia wodnego (WGK): WGK 3
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable