Direkt zum Inhalt
Merck
Alle Fotos(4)

Dokumente

730793

Sigma-Aldrich

Silber, Dispersion

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

Synonym(e):

Colloidal silver

Anmeldenzur Ansicht organisationsspezifischer und vertraglich vereinbarter Preise
Alle Fotos(4)

About This Item

Lineare Formel:
Ag
CAS-Nummer:
7440-22-4
Molekulargewicht:
107.87
MDL-Nummer:
MFCD00003397
UNSPSC-Code:
12352302
PubChem Substanz-ID:
329764595
NACRES:
NA.23

Form

nanoparticles

Enthält

sodium citrate as stabilizer

Konzentration

0.02 mg/mL in aqueous buffer

Brechungsindex

n20/D 1.333

Partikelgröße

20 nm (TEM)

Dichte

0.986 g/mL at 25 °C

Fluoreszenz

λem 401 nm FWHM 66 nm

Lagertemp.

2-8°C

SMILES String

[Ag]

InChI

1S/Ag

InChIKey

BQCADISMDOOEFD-UHFFFAOYSA-N

Suchen Sie nach ähnlichen Produkten? Aufrufen Leitfaden zum Produktvergleich

Verwandte Kategorien

Allgemeine Beschreibung

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.

Anwendung


  • 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).


Piktogramme

Environment
GHS09

Signalwort

Warning

H-Sätze

H410

Gefahreneinstufungen

Aquatic Acute 1 - Aquatic Chronic 1

Lagerklassenschlüssel

12 - Non Combustible Liquids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.

Besitzen Sie dieses Produkt bereits?

In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

Die Dokumentenbibliothek aufrufen

Lingting Huang et al.
Mikrochimica acta, 187(10), 563-563 (2020-09-14)
A paper-based visual fluorescence immunoassay is presented for the detection of matrix metalloproteinase-7 (MMP7) that is related to renal cancer. The method is based on the distance-dependent fluorescence quenching of CdTe quantum dots (QDs) on a nitrocellulose membrane by Ag+ following a sandwich-type immunoreaction

Artikel

Silver Nanomaterials for Biological Applications

Silver nanomaterials have unique physical, chemical, and optical properties that are currently being leveraged for a wide variety of biological applications.

Nanostructured Materials Through Ultrasonic Spray Pyrolysis

The diversity of applications and nanostructured materials accessible using ultrasonic spray methods are highlighted in this article.

Nanostructured Materials via Ultrasonic Spray Pyrolysis

Ultrasonic spray pyrolysis produces scalable nanomaterials like metal oxides and quantum dots for diverse applications.

Noble Bimetallic Nanoparticles in Glucose Detection

Research on noble bimetallic nanoparticles for glucose biosensor detection.

Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..

Setzen Sie sich mit dem technischen Dienst in Verbindung.