Gold colloid and palladium colloid are used as a materials of lateral flow immunoassya and bioassay.
Morinaga Institute of Biological Science, Inc. original colloids are provided with high concentration, good stability, easy handling and long shelf life.
| Gold Colloid | Palladium Colloid | |
|---|---|---|
| Particl size (avg.) | 40 nm and 50 nm | 100 nm |
| Volume | 10 mL, 50 mL, 100 mL | 10 mL, 50 mL, 100 mL |
| OD500-520 | ≧12 | ≧12 |
| Reductant / protective agent | Amino acid (50nm) Peptide (40 nm) |
Amino acid |
| Color | Red | Black |
| Shelf life | 6 months | 6 months |
| Storage temperature ( do not freeze ) |
1℃ - 30℃ | 1℃ - 30℃ |
- Small amount of buffer is enough to adjust pH when antibodies are combined to colloid particles.
- Multi-assay is available by using both Gold Colloid AuH1 (red color) and Palladium Colloid Pd1 (black color) .
- Colloid particles have minus charge so as not to avoid agglutination.
