Biological Sample Spacer Chamber to Prevent Substrate Detachment

A spacer agent comprising a hydrophobic agent and a plurality of beads is introduced as an intermediary between the biological sample and the substrates. The hydrophobic agent forms a barrier that prevents direct contact between the aqueous mounting medium and the substrate, while the beads provide mechanical support and spacing. This intermediary structure eliminates the harmful detachment effect while maintaining sample integrity for analysis.

The spacer agent is formulated as a composite material combining a hydrophobic agent (such as grease or polymer) with a plurality of beads (such as glass or plastic spheres). This composite structure integrates multiple functions: the hydrophobic component provides chemical barrier properties, while the bead component provides mechanical spacing and structural support. By combining materials with complementary properties into a single spacer agent, the system achieves sample protection without proportionally increasing complexity.

The spacer agent is applied to the substrate before the biological sample is placed, pre-forming the chamber structure. This preliminary action creates a ready-made protective environment that simply needs to be sealed with a coverslip. By preparing the spacer agent in advance rather than attempting to construct the chamber after sample placement, the manufacturing process is simplified while still achieving reliable sample preservation.