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765430

Sigma-Aldrich

Gold nanoparticles

5 nm diameter, carboxylic acid functionalized, PEG 3000 coated, OD 50, dispersion in H2O

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Synonym(s):
Gold nanoparticles COOH functionalized, Au NP COOH, Gold Colloid
NACRES:
NA.23

material

PEG 3000

form

dispersion in H2O
nanoparticles

packaging

poly bottle of 1 mL

OD

50

diameter

5 nm

pH

6.0-8.0 (25 °C)

solubility

water: miscible

density

1.00 g/cm3

λmax

515 nm

functional group

carboxyl

storage temp.

2-8°C

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This Item
765589765457765473
Gold nanoparticles 5 nm diameter, carboxylic acid functionalized, PEG 3000 coated, OD 50, dispersion in H2O

Sigma-Aldrich

765430

Gold nanoparticles

Gold nanoparticles 50 nm diameter, carboxylic acid functionalized, PEG 5000 coated, dispersion in H2O

Sigma-Aldrich

765589

Gold nanoparticles

Gold nanoparticles 10 nm diameter, carboxylic acid functionalized, PEG 3000, OD 50, dispersion in H2O

Sigma-Aldrich

765457

Gold nanoparticles

Gold nanoparticles 15 nm diameter, carboxylic acid functionalized, PEG 3000 coated, OD 50, dispersion in H2O

Sigma-Aldrich

765473

Gold nanoparticles

functional group

carboxyl

functional group

carboxyl

functional group

carboxyl

functional group

carboxyl

material

PEG 3000

material

PEG 5000

material

PEG 3000

material

PEG 3000

packaging

poly bottle of 1 mL

packaging

poly bottle of 1 mL

packaging

glass bottle of 1 mL

packaging

glass bottle of 1 mL

OD

50

OD

50

OD

50

OD

50

diameter

5 nm

diameter

50 nm

diameter

10 nm

diameter

15 nm

General description

Carboxylic acid functionalized GNPs forms conjugates with various protein molecules due to the electrostatic attraction between negatively charged carboxylate groups and positively charged amino groups of protein.

Application

Carboxylic acid functionalized, PEG 3000 coated, OD 50, and H2O dispersed gold nanoparticles (5 nm) can be potentially used in the development of biosensors, cancer-cell imaging, drug delivery, and photothermal therapy.
AuNPs may be used to prepare SARS-CoV-2 conjugate for COVID-19 detection using lateral flow immunoassay technique. It may also be used in the immobilization of antibodies to improve the sensitivity of optical fiber sensors for the screening of COVID-19. It can also be deposited on the titanium electrode for the formation of a miniaturized device for the electrochemical detection of DNA hybridization.
Carboxylic acid group binds with various proteins and is used in targeted drug delivery and gene therapy.
Functionalized Particles have been extensively used to study cellular uptake of nanoparticles and targeted drug delivery.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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