It is best to store the particles in the buffer solution provided. The particles can be dried down and reused, but there are important considerations to keep in mind. Drying gold nanoparticles can lead to aggregation, which may affect their size, shape, and overall functionality. The citrate ions help stabilize the nanoparticles in solution, and removing the solvent can disrupt this stabilization. If dried, the nanoparticles need to be re-dispersed in ultra-pure water. If drying is necessary, consider storing the nanoparticles in a controlled environment (e.g., desiccator) to minimize moisture and humidity, which can lead to aggregation.
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Kluczowe dokumenty
742015
Gold nanoparticles
60 nm diameter, OD 1, stabilized suspension in citrate buffer
Synonim(y):
Au NP, Gold Colloid
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25 ML
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25 ML
675,00 zł
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2260,00 zł
About This Item
675,00 zł
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Polecane produkty
Formularz
nanoparticles
suspension
zawiera
Proprietary Surfactant as stabilizer
stężenie
~1.9E+10 particles/mL
OD
1
średnica
60 nm
λmaks.
536-541 nm
PDI
<0.2
temp. przechowywania
2-8°C
ciąg SMILES
[Au]
InChI
1S/Au
Klucz InChI
PCHJSUWPFVWCPO-UHFFFAOYSA-N
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Zastosowanie
Ideal for adsorption of thiolated ligands such as oligonucleotides and polyethylene glycols. Also, due to the increased stability, these gold nanoparticles are ideal for use in physical and optical applications. Note: This product is not ideal for protein adsorption. For gold nanoparticles suitable for adsorption of proteins and other ligands for conjugate development, please see our gold nanoparticles stabilized in PBS.
This material is highly monodisperse (<12% variability in size and shape), and provides significantly improved surface reactivity. Applications include Surface Enhanced Raman Lables, Sensing/Detection, Biological Targeting, Plasmonics and Electronics.
This material is highly monodisperse (<12% variability in size and shape), and provides significantly improved surface reactivity. Applications include Surface Enhanced Raman Lables, Sensing/Detection, Biological Targeting, Plasmonics and Electronics.
Informacje prawne
Product of CytoDiagnostics, Inc.
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Kod klasy składowania
12 - Non Combustible Liquids
Klasa zagrożenia wodnego (WGK)
nwg
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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Gold (Au) nanoparticles have tunable optical and electronic properties and are used in a number of applications including photovoltaics, sensors, drug delivery & catalysis.
Nanocząstki złota (Au) mają przestrajalne właściwości optyczne i elektroniczne i są wykorzystywane w wielu zastosowaniach, w tym w fotowoltaice, czujnikach, dostarczaniu leków i katalizie.
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Can these gold nanoparticles be dried and reused later without losing their functionality or properties?
1 answer-
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How do you attach gold nanoparticles to peptides and peptide conjugates?
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To view information on how to attach gold nanoparticles to peptides and peptide conjugates, please view the information in the reference - Rosenthal, S. J. and Wright, D. W. (Eds.). (2005), p. 91-92. NanoBiotechnology Protocols. New Jersey. Humana Press.
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Which gold nanoparticle size should I choose for my application?
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The size of gold nanoparticle to use is very depandent upon the intended application. Generally, smaller particles offer better sensitivity in applications such as immunogold labeling due to less steric hindrance and the ability to bind more gold nanoparticles to the desired target. Small gold nanoparticles are less visible than larger particles, however, which must also be taken into account.As an application example, particles with a size between 30-50nm are particularly useful for the development of rapid tests such as lateral flow assays.
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How does the storage temperature relate to shipping conditions?
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The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment.
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Can the Gold nanoparticles be frozen?
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No, the Gold nanoparticles should not be frozen. If frozen, the gold nanoparticles will irreversibly aggregate, turning the solution clear.
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How do you attach gold nanoparticles to oligos?
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To attach gold nanoparticles to oligos please view the information in the attached reference - Bioconjug Chem. 2011 Apr 20;22(4):794-807. Epub 2011 Mar 28.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Do I need to wash my gold nanoparticles?
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For most applications, our gold nanoparticles can be used without any additional washing steps. If you have a sensitive application that requires additional washing the best way to do so is by either centrifugation or filtration.
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My gold nanoparticles settle out of solution upon storage. Is this normal?
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Settling of gold nanoparticles on the bottom of the storage flask is completely normal and is especially common for larger sized particles, which settles at greater speed. Settling does not affect the performance of the particles. Prior to use, simply swirl the solution to properly disperse your gold nanoparticles and obtain a homogenous solution.
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How do you attach gold nanoparticles to glass?
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To view the procedure on how to attach gold nanoparticles to glass please view information in the reference - Journal of Atomic, Molecular, and Optical PhysicsVolume 2012 (2012). Article ID 683830, 6 pagesdoi:10.1155/2012/683830
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