What are the different types of multiwell plates used for fluorescence, luminescence, and colorimetric detection? Which type should be used for which application?
The choice of multiwell plate depends on the detection method, as plate color and opacity strongly influence signal quality and background noise.
1) Fluorescence detection (fluorometer)
- Recommended plates: Black plates with clear bottoms
- Reason: Black walls reduce well‑to‑well crosstalk and background fluorescence, while clear bottoms allow bottom‑read detection.
- Note: In some applications, clear plates may also be sufficient, depending on signal strength and assay sensitivity.
2) Luminescence detection (luminometer)
- Recommended plates: White or opaque plates
- Reason: White plates reflect emitted light and maximize signal intensity, improving sensitivity for low‑light luminescence assays.
3) Colorimetric detection (photometer/absorbance reader)
- Recommended plates: Clear plates
- Reason: Clear wells are required for accurate absorbance measurements, as light must pass directly through the sample.
1) Fluorescence detection (fluorometer)
- Recommended plates: Black plates with clear bottoms
- Reason: Black walls reduce well‑to‑well crosstalk and background fluorescence, while clear bottoms allow bottom‑read detection.
- Note: In some applications, clear plates may also be sufficient, depending on signal strength and assay sensitivity.
2) Luminescence detection (luminometer)
- Recommended plates: White or opaque plates
- Reason: White plates reflect emitted light and maximize signal intensity, improving sensitivity for low‑light luminescence assays.
3) Colorimetric detection (photometer/absorbance reader)
- Recommended plates: Clear plates
- Reason: Clear wells are required for accurate absorbance measurements, as light must pass directly through the sample.