Gold Colloids

Medical Compounds/Nanoparticles Medical/Diagnostics Medical Device Materials Inspection/Temperature Measurement Materials Powders, Compounds, Nanoparticles, and Pellet

What is "Gold Colloid"?
This colloidal solution made by TANAKA using a proprietary synthesis process, dispersing high-purity, spherical gold nanoparticles ranging in size from 5 nm to 150 nm. Among these, gold citrate colloids have a narrow particle size distribution and are easy to surface modify, making them a highly reliable material that supports highly sensitive and highly accurate detection technologies in the medical and analytical fields.

TANAKA offers high-quality products with prompt and thorough support.

We produce colloidal gold that enables the manufacture of diagnostics and biosensors through a unique process and we supply using a high quality management system.

Gold-Citric Acid Colloidal Solution

Features

Colloidal solution with nanosized gold particles dispersed in it
Gold particles are spherical with high purity and narrow particle size distribution.
Easy to modify gold particle surfaces
Colloids can be supplied in the quantity and in the time required as they are manufactured in Japan
Colloids can be supplied at a stable level of quality with little variation between lots

Applications

Gold-citric acid colloidal solution is used in in-vitro diagnostic and other test kits. It is ideal for use in test reagents, biomarkers, X-ray identification markers, etc.

Typical Characteristics

Au Colloid Solution-SC
Particle size (nm)	Solvent	Color	Shape	Particle Size Range	Gold content (Wt%)	pH
5	Water	Light orange － Deep red	Spherical	10% or less in relation to particle size	0.004～0.005	4.5
15					0.006～0.007	5.5
20						5
30						4
40						3.5
50						3
60						3
80						3
100						3
150						3

[Absorbance Comparison Graph] 5 nmΦ to 100 nmΦ — Absorbance

[Comparison of Au particle size] 5 nmΦ to 100 nmΦ — Au particle size

Related Information

Products/Services > Diagnostics

TEM image of precious metal nanoparticles

Products/Services > Precious Metal Nanoparticles

●Disclaimer
Never use this test kit as the only guide to manage your condition or illness. Consult your healthcare provider if your symptoms persist or become more severe, or if you are concerned at any time.

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