How to Evaluate Import Substitution Materials for Rapid Diagnostic Projects
Import substitution is not simply finding a similar model name. It requires systematic evaluation of performance, stability, supply continuity and production adoption risk.

Clarify the goal
The goal may be cost optimization, shorter lead time, lower supply risk, performance improvement or localization. Different goals lead to different validation priorities.
Parallel validation
Run candidate materials under the same strip structure, sample system and reading conditions. Compare sensitivity, background, line clarity, release efficiency, repeatability, stability and lot variation.
Production transition
After sample validation, confirm specification, package, lot documents, lead time, storage conditions and scale-up plan.
FAQ
Will substitution always reduce cost?
It can support cost and supply optimization, but value should be judged together with performance, validation cost, lead time and production risk.
Which materials can be evaluated?
Membranes, pads, fluorescent nanobeads, colloidal gold consumables, backing cards, raw materials and reagents can all be evaluated according to project needs.
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