BRANDplates® microplates are manufactured out of different materials and can be used in different fields of application.
Polystyrene (PS) is the material out of which the most types of BRANDplates® microplates are
manufactured. Not pigmented PS provides a high transparency with optimal optical characteristics,
which makes it specially suited for colorimetric assays and other optical measurements. Not treated PS is
hydrophobic. This surface characteristic can be changed specifically via physical-chemical treatments, so
that - depending on the chosen process - a lot of new application possibilities occur (e.g., immunological
analysis, cell culture, etc.). The modifications are of long duration and also at room temperature
persistent.
The UV-polymer has very good optical characteristics and is transparent already from 220 nm.
For this reason disposables made of this polymer are suitable for the determination of nucleic acid
and protein concentrations (at 260 and 280 nm, respectively). Furthermore the UV-polymer has a
very good resistance against a lot of chemicals like e.g., DMSO, Actone or Dioxane and is also for
storage applications an interesting alternative to PP plates.
Resistance of Frequently Used Plastics
| Media | UV-Polymer | PS | PP |
| Acetic acid, 100% | + | - | + |
| Acetone | + | - | + |
| Ammonia | + | + | + |
| Benzaldehyde | + | - | + |
| Benzene (Benzol) | - | - | + |
| Chloroform | - | - | - |
| Dioxane | + | - | + |
| DMF | + | - | + |
| DMSO (Dimethylsulfoxide) | + | - | + |
| Ethyl acetate | + | - | + |
| Hexane | - | - | + |
| Hydrochloric acid, 36% | + | + | + |
| Hydrofluoric acid, 10% | + | + | + |
| Isopropanol | + | + | + |
| Methanol | + | + | + |
| Nitric acid, 65% | + | - | - |
