Passa al contenuto
Merck
Tutte le immagini(4)

Documenti fondamentali

730793

Sigma-Aldrich

Silver, dispersion

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

Sinonimo/i:

Colloidal silver

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali
Tutte le immagini(4)

About This Item

Formula condensata:
Ag
Numero CAS:
7440-22-4
Peso molecolare:
107.87
Numero MDL:
MFCD00003397
Codice UNSPSC:
12352302
ID PubChem:
329764595
NACRES:
NA.23

Stato

nanoparticles

contiene

sodium citrate as stabilizer

Concentrazione

0.02 mg/mL in aqueous buffer

Indice di rifrazione

n20/D 1.333

Dimensione particelle

20 nm (TEM)

Densità

0.986 g/mL at 25 °C

Fluorescenza

λem 401 nm FWHM 66 nm

Temperatura di conservazione

2-8°C

Stringa SMILE

[Ag]

InChI

1S/Ag
BQCADISMDOOEFD-UHFFFAOYSA-N

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Descrizione generale

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.

Applicazioni


  • 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).


Pittogrammi

Environment
GHS09

Avvertenze

Warning

Indicazioni di pericolo

H410

Consigli di prudenza

P273 - P391 - P501

Classi di pericolo

Aquatic Acute 1 - Aquatic Chronic 1

Codice della classe di stoccaggio

12 - Non Combustible Liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number
MKCN8420
MKCM2276
MKCL5164
MKCK5339
MKBV9651V

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Cerca un COA

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

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

Articoli

Strategy for Toxicity Screening of Nanomaterials

A key challenge for nanomaterial safety assessment is the ability to handle the large number of newly engineered nanomaterials (ENMs), including developing cost-effective methods that can be used for hazard screening.

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

Nanostructured Materials Through Ultrasonic Spray Pyrolysis

Nanostructured Materials Through Ultrasonic Spray Pyrolysis

Advances in materials have often been led by the development of new synthetic methods that provide control over size, morphology and structure. The preparation of materials in a scalable and continuous manner is critical when development moves beyond lab-scale quantities.

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.