765325
Gold nanoparticles
15 nm diameter, amine functionalized, PEG 5000 coated, OD 50, dispersion in H2O
Synonym(s):
Gold nanoparticles NH2 functionalized, Au NP NH2, Gold Colloid
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About This Item
NACRES:
NA.23
UNSPSC Code:
12162002
material
PEG 5000
Quality Level
form
dispersion in H2O, nanoparticles
packaging
poly bottle of 1 mL
OD
50
diameter
15 nm
pH
6.0-8.0 (25 °C)
solubility
water: miscible
density
1.00 g/cm3
λmax
520 nm
functional group
amine
storage temp.
2-8°C
General description
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.††††
Application
Used in carrying siRNA which acts against human prostate carcinoma cells by inhibiting a specific cancer gene.
Functionalized particles have been extensively used to study cellular uptake of nanoparticles and targeted drug delivery.
Features and Benefits
- 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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Storage Class
10 - Combustible liquids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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Articles
最近出现的许多高功能纳米材料为癌症的认识、诊断和治疗提供了新的方案。
The recent emergence of a number of highly functional nanomaterials has enabled new approaches to the understanding, diagnosis, and treatment of cancer.
Biomaterials science integrates smart materials into biological research, requiring a deep understanding of biological systems.
Sinem Diken Gür et al.
Materials science & engineering. C, Materials for biological applications, 104, 109869-109869 (2019-09-11)
The aim of the present study was developing a surface plasmon resonance (SPR) nanosensor to detect Escherichia coli (E. coli) for the diagnosis of urinary tract infections by using surface imprinted Au nanoparticles (AuNPs) as a recognition element. In order
Gold nanoparticles for the improved anticancer drug delivery of the active component of oxaliplatin.
Sarah D Brown et al.
Journal of the American Chemical Society, 132(13), 4678-4684 (2010-03-17)
The platinum-based anticancer drugs cisplatin, carboplatin, and oxaliplatin are an important component of chemotherapy but are limited by severe dose-limiting side effects and the ability of tumors to develop resistance rapidly. These drugs can be improved through the use of
Timothy A Larson et al.
ACS nano, 6(10), 9182-9190 (2012-09-27)
Polyethylene glycol (PEG) surface coatings are widely used to render stealth properties to nanoparticles in biological applications. There is abundant literature on the benefits of PEG coatings and their ability to reduce protein adsorption, to diminish nonspecific interactions with cells
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 765325-1ML | 04061837523649 |