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GravityTRAP™ ULA Plate 96-well, pack of 10

The InSphero GravityTRAP™ Ultra-Low Attachment (ULA) microplate represents a simple, flexible, and automation-compatible platform for the generation, long-term cultivation, observation and testing of scaffold-free 3D microtissue spheroids in 96-well format. Each plate consists of a special non-adhesively coated 96-well sterile-packaged GravityTRAP™ (Tissue Re-aggregation and Assay Plate), and lid.

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Detail Information

Many U-bottom ULA plates exhibit common problems such as poor spheroid formation, loss of spheroids during medium exchange, and difficulties imaging through curved plastic. GravityTrap™ ULA plates overcome these issues through the use of a SureXchange™ tapered ledge that facilitates easy medium exchange and prevents microtissue loss, an ultra-low attachment (ULA) coating to promote scaffold-free self-assembly, and a flat bottom observation chamber that enables brightfield microscopy applications and size measurements.

The GravityTRAP™ ULA Plate format is compatible with a broad variety of applications and allows for measurements with a multiwell plate reader or for visual inspection of microtissues by an inverted microscope (similar to analysis of standard 2D cultures):

  • Biochemical assays
  • Histology
  • Fluorescent and luminescent assays
  • Cellular imaging and analysis


GravityTRAP™ ULA Plates are recommended for:

  • Tumor cell lines and cell lines known to readily form spheroids
  • Low-cost screening of cell lines for spheroid formation


PerkinElmer is the exclusive distributor of InSphero GravityTRAP™ ULA plates and GravityPLUS™ Hanging Drop Systems. GravityTRAP™ and GravityPLUS™ are trademarks of InSphero.



Automation Compatible Yes
Coating Treatment ULA
Color Clear
Detection Method Confocal Imaging, High Content Imaging
Material Polystyrene
Product Brand Name GravityTRAP
Quantity in a Package Amount 10.0 Units
Shipping Condition Ambient
Unit Size Pack of 10