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765309
Gold nanoparticles
10 nm diameter, amine functionalized, PEG 5000 coated, OD 50, dispersion in H2O
Synonim(y):
Gold nanoparticles NH2 functionalized, Au NP NH2, Gold Colloid
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About This Item
Kod UNSPSC:
12162002
NACRES:
NA.23
Polecane produkty
Materiały
PEG 5000
Poziom jakości
Postać
dispersion in H2O
nanoparticles
opakowanie
glass bottle of 1 mL
OD
50
średnica
10 nm
pH
6.0-8.0 (25 °C)
rozpuszczalność
water: miscible
gęstość
1.00 g/cm3
λmaks.
520 nm
grupa funkcyjna
amine
temp. przechowywania
2-8°C
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Opis ogólny
Gold nanoparticles (AuNPs) ranging from 2-200nm in diameter find applications in diverse fields. They show excellent biocompatibility and attractive physicochemical properties. Poly (ethylene) glycol (PEG) surface coatings on gold nanoparticles help in the reduction of protein adsorption, reduce nonspecific interactions with cells and greatly improve the pharmokinetics of these nanoparticles and reduce aggregation of the nanoparticles. PEG layer density depends inversely on the AuNP curvature. Denser coating was possible on smaller AuNPs. AuNPs coated with PEG 5000 exhibited highest colloidal stability. Amine functionalized GNPs which have Poly Ethylene Glycol (PEG) as the ligand or carrier molecule forms a conjugate with siRNA and is extremely useful in RNAi technology. Since it adheres to cell membranes, it may find use in cellular and intracellular targeting in targeted drug delivery applications and also used in biodistribution studies.
Zastosowanie
Functionalized particles have been extensively used to study cellular uptake of nanoparticles and targeted drug delivery.
Several other specific applications have been listed below:
- Since they adhere to cell membranes, AuNPs may be used in cellular and intracellular targeting in targeted drug delivery applications and can also be used in biodistribution studies
- AuNPs may also be used in photothermal therapy and radiotherapy
- Proposed applications of gold nanoparticles are as:drug delivery agents for cancer therapy, coatings, plastics, nanowire, nanofiber, textiles, catalyst applications.
- They may also be used in carrying siRNA which acts against human prostate carcinoma cells by inhibiting a specific cancer gene.
Cechy i korzyści
- A negatively charged siRNA-PEG complex, attached to positively charged GNPs, is easily cleavable in reductive cytosolic environment thus enabling the release of siRNA into cytosol.
- The PEG coating decreases the cytotoxicity and increases efficiency of GNPs. PEG increases the stability of the nanoparticles and prevents agglomeration.
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Kod klasy składowania
12 - Non Combustible Liquids
Klasa zagrożenia wodnego (WGK)
WGK 1
Temperatura zapłonu (°F)
Not applicable
Temperatura zapłonu (°C)
Not applicable
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Produkty
The recent emergence of a number of highly functional nanomaterials has enabled new approaches to the understanding, diagnosis, and treatment of cancer.
Biomaterials science involves the design and fabrication of smart materials for studying, directing, or mimicking biology. For successful integration of biomaterials in biological research, a meaningful understanding of biological systems is required.
Nasz zespół naukowców ma doświadczenie we wszystkich obszarach badań, w tym w naukach przyrodniczych, materiałoznawstwie, syntezie chemicznej, chromatografii, analityce i wielu innych dziedzinach.
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