Multiwell plate lid for improved optical measurements
US8976353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lid for multiwell plates, allowing improved optical measurement of liquid samples within its wells, while mitigating evaporation from said samples, is disclosed. A surface element protrudes from the bottom of the lid into the fluid within a well. The protruding element may be hollow or solid such that light directed into the element may act to capture or direct the beam while preventing backscatter from reaching one or more detectors. The protruding element may direct the beam from the well without requiring the beam to pass through a fluid/air interface. The angle and shape of the lid surfaces and/or light absorbing/blocking colorization may be employed to minimize or eliminate back reflection. Evaporation is controlled by physically capping the well with the lid, either sealing against the face at the top of the well or the inside surface of the well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.